Ricoh C217 Service manual

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Ricoh C217 Service manual | Manualzz
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®
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C217/C225
SERVICE MANUAL
RICOH GROUP COMPANIES
PN: RCSM1730
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C217/C225
SERVICE MANUAL
RICOH GROUP COMPANIES
C217/C225
SERVICE MANUAL
PN: RCSM1730
WARNING
The Service Manual contains information regarding
service techniques, procedures, processes and
spare parts of office equipment distributed by
Ricoh Corporation. Users of this manual should be
either service trained or certified by successfully
completing a Ricoh Technical Training Program.
Unt rained and uncer tified users utilizing
information contained in this service manual to
repair or modify Ricoh equipment risk personal
injury, damage to property or loss of warranty
protection.
Ricoh Corporation
LEGEND
PRODUCT CODE
COMPANY
GESTETNER
RICOH
SAVIN
C217
5303
VT1730
—
C225
5304
VT1800
3100DNP
DOCUMENTATION HISTORY
REV. NO.
DATE
COMMENT
*
5/93
Original Printing
1
10/95
VT1800 Addition
Table of Contents
OVERALL MACHINE INFORMATION
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2. PRINTING PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3. MECHANICAL COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . . . . 1-4
4. DRIVE LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
5. ELECTRICAL COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . 1-6
6. OVERALL MACHINE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
DETAILED SECTION DESCRIPTIONS
1. MASTER EJECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
1.1 OVERALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
1.2 MASTER CLAMPER OPEN MECHANISM . . . . . . . . . . . . . . . . . 2-2
1.3 MASTER EJECT ROLLER MECHANISM . . . . . . . . . . . . . . . . . . 2-3
1.4 PRESSURE PLATE MECHANISM . . . . . . . . . . . . . . . . . . . . . . . 2-4
2. SCANNER AND OPTICS SECTION . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.1 OVERALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.2 ORIGINAL FEED MECHANISM. . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.3 ORIGINAL FEED DRIVE MECHANISM. . . . . . . . . . . . . . . . . . . . 2-7
3. MASTER FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.1 OVERALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3.2 MASTER FEED MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
3.3 MASTER CLAMPER OPERATION AND TENSION ROLLER
RELEASE MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
3.4 CUTTER MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
4. PAPER FEED SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
4.1 OVERALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
4.2 PAPER FEED ROLLER MECHANISM . . . . . . . . . . . . . . . . . . . 2-13
4.3 2ND FEED ROLLER MECHANISM . . . . . . . . . . . . . . . . . . . . . . 2-14
4.4 UPPER 2ND FEED ROLLER RELEASE MECHANISM . . . . . . 2-15
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4.5 PRINTING PRESSURE MECHANISM. . . . . . . . . . . . . . . . . . . . 2-16
4.6 PAPER TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
4.7 SIDE FENCE SLIDE MECHANISM . . . . . . . . . . . . . . . . . . . . . . 2-20
5. DRUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
5.1 OVERALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
5.2 DRUM DRIVE MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
5.3 MAIN MOTOR CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
5.4 INK SUPPLY MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
5.5 INK ROLLER MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
5.6 INK SUPPLY CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
6. PAPER DELIVERY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
6.1 OVERALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
6.2 PAPER DELIVERY ROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
6.3 EXIT PAWL/AIR KNIFE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
6.4 EXIT PAWL RELEASE MECHANISM . . . . . . . . . . . . . . . . . . . . 2-32
7. JAM DETECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
7.1 ORIGINAL JAM DETECTION . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
7.2 MASTER EJECT JAM DETECTION . . . . . . . . . . . . . . . . . . . . . 2-34
7.3 MASTER FEED JAM DETECTION . . . . . . . . . . . . . . . . . . . . . . 2-35
7.4 PAPER FEED JAM DETECTION. . . . . . . . . . . . . . . . . . . . . . . . 2-36
8. IMAGE PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
8.1 A/D CONVERSION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
8.2 BINARY PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
8.2.1 MTF Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
8.2.2 Dither Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48
8.2.3 Edge Emphasis Processing in the Photo Mode . . . . . . . . . . . . . . . . . . . . . 2-48
8.3 THERMAL HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
8.3.1 Thermal Head Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
8.3.2 Thermal Head Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
9. MASTER PLOTTING AND PRINTING AREA . . . . . . . . . . . . . . . . . 2-51
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INSTALLATION
1. INSTALLATION REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.1 OPTIMUM ENVIRONMENTAL CONDITION: . . . . . . . . . . . . . . . 3-1
1.2 ENVIRONMENTS TO AVOID: . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
1.3 POWER CONNECTION: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
1.4 ACCESS TO MACHINE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
2. INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3. TAPE MARKER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.1 ACCESSORY CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
SERVICE TABLES
1. SERVICE REMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
1.1 SCANNER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
1.2 MASTER FEED SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
1.3 PAPER FEED SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
1.4 DRUM AND DRUM DRIVE SECTION . . . . . . . . . . . . . . . . . . . . . 4-2
1.5 INK SUPPLY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
1.6 PAPER DELIVERY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
1.7 ELECTRICAL COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
2. MAINTENANCE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
3. LUBRICATION POINTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
3.1 FEED ROLLER BUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
3.2 EXIT ROLLER BUSHINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
3.3 FEED ROLLER DRIVE GEARS . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
3.4 DRUM DRIVE GEARS AND CAM . . . . . . . . . . . . . . . . . . . . . . . . 4-6
3.5 DRUM FLANGE BUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4. INPUT/OUTPUT CHECK MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.1 ACCESS PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.2 DRUM FREE RUN MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
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4.3 INPUT CHECK MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.4 OUTPUT CHECK MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
5. THERMAL HEAD TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
6. SERVICE TABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
5.1 TEST POINT TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
5.2 VARIABLE RESISTOR TABLE . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
5.3 DIP SW TABLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
5.4 LED TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
5.5 FUSE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
7. SERVICE CALL INDICATIONS TABLE . . . . . . . . . . . . . . . . . . . . . 4-16
REPLACEMENT AND ADJUSTMENT
1. SCANNER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
1.1 ORIGINAL REGISTRATION SENSOR ADJUSTMENT. . . . . . . . 5-1
1.2 ORIGINAL FRICTION PAD REMOVAL . . . . . . . . . . . . . . . . . . . . 5-3
1.3 EXPOSURE LAMP REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
1.4 ORIGINAL SET AND REGISTRATION SENSOR REMOVAL. . . 5-7
1.5 ORIGINAL PICK-UP AND FEED ROLLER REMOVAL . . . . . . . . 5-8
1.6 EXPOSURE GLASS REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
2. COPY IMAGE ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
2.1 LEADING EDGE REGISTRATION ADJUSTMENT . . . . . . . . . . 5-10
2.2 VERTICAL MAGNIFICATION ADJUSTMENT . . . . . . . . . . . . . . 5-11
2.3 TRAILING EDGE ERASE MARGIN ADJUSTMENT . . . . . . . . . 5-12
3. MASTER FEED SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
3.1 THERMAL HEAD VOLTAGE ADJUSTMENT . . . . . . . . . . . . . . 5-13
3.2 THERMAL HEAD REMOVAL. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
3.3 PLOTTER UNIT REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
4. MASTER EJECT SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
4.1 MASTER EJECT UNIT REMOVAL . . . . . . . . . . . . . . . . . . . . . . 5-19
5. PAPER FEED SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
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5.1 PAPER FEED ROLLER AND FRICTION PAD REMOVAL . . . . 5-21
6. PRINTING SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
6.1 PRESS ROLLER LOCK LEVER ADJUSTMENT . . . . . . . . . . . . 5-22
6.2 PRESS ROLLER REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
7. DRUM, DRUM DRIVE, AND INK SUPPLY SECTION. . . . . . . . . . . 5-25
7.1 DRIVE BELT TENSION ADJUSTMENT . . . . . . . . . . . . . . . . . . 5-25
7.2 DOCTOR ROLLER GAP ADJUSTMENT. . . . . . . . . . . . . . . . . . 5-26
7.3 INK DETECTION ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . 5-28
7.4 MAIN MOTOR REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . 5-29
7.5 INK PUMP PLUNGER POSITION ADJUSTMENT . . . . . . . . . . 5-30
7.6 DRUM UNIT REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
7.7 DRUM SCREEN REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35
7.8 INK ROLLER UNIT REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . 5-36
8. PAPER DELIVERY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38
8.1 EXIT PAWL CLEARANCE ADJUSTMENT . . . . . . . . . . . . . . . . 5-38
8.2 EXIT PAWL DRIVE TIMING ADJUSTMENT . . . . . . . . . . . . . . . 5-40
8.3 EXIT ROLLER AND EXIT PAWL REMOVAL . . . . . . . . . . . . . . 5-42
9. OPTICS SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
9.1 OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
9.1.1 Preparation For Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-44
9.1.2 Scanning Start And Line Position Adjustment . . . . . . . . . . . . . . . . . . . . . . 5-49
9.1.3 Focus (Modulation Transfer Function) Adjustment. . . . . . . . . . . . . . . . . . . 5-51
9.1.4 Magnification Ratio Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-53
9.1.5 White Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-55
TROUBLESHOOTING
1. ELECTRICAL COMPONENT TROUBLE . . . . . . . . . . . . . . . . . . . . . 6-1
2. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
2.1 IMAGE TROUBLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
2.2 PAPER FEED TROUBLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
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PRIPORT CONTROLLER INSTALLATION GUIDE
7.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.2 SYSTEM REQUIREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.3 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.4 PARTS LISTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.5 CABLING BETWEEN PCRIP-10 AND COMPUTER . . . . . . . . . 7-8
A. IBM AND COMPATIBLES - PARALLEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
B. IBM AND COMPATIBLES - SERIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
C. MACINTOSH COMPUTERS - APPLETALK STANDARD . . . . . . . . . . . . . . . . 7-9
7.6 SYSTEM VERIFICATION AND DEFAULT
CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
7.7 CABLE PIN-OUT DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
A. PARALLEL INTERFACE, PIN-OUT CONNECTIONS . . . . . . . . . . . . . . . . . . 7-12
B. PARALLEL INTERFACE CABLE, PIN ASSIGNMENTS . . . . . . . . . . . . . . . . 7-12
C. SERIAL INTERFACE CABLE, PIN-OUT CORRECTIONS . . . . . . . . . . . . . . 7-13
D. SERIAL INTERFACE CABLE, PIN ASSIGNMENTS. . . . . . . . . . . . . . . . . . . 7-13
7.8 RAM UPGRADE PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . 7-14
PRIPORT CONTROLLER USER’S GUIDE
7.9 REGULATORY NOTICES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
7.10 TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
7.11 HARDWARE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
7.12 PRIPORT CONTROLLER CONFIGURATION . . . . . . . . . . . . 7-24
7.13 CONFIGURATION OF IBM PC AND COMPATIBLES . . . . . . 7-24
7.14 CONFIGUTATION OF MACINTOSH COMPUTERS . . . . . . . 7-28
7.15 APPLICATION SOFTWARE SET-UP . . . . . . . . . . . . . . . . . . . 7-29
7.16 PRIPORT CONTROLLER OPERATION. . . . . . . . . . . . . . . . . 7-30
7.17 COMMONLY ASKED QUESTIONS . . . . . . . . . . . . . . . . . . . . 7-31
7.18 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
7.19 APPENDIX A - DIAGNOSTIC STATUS PAGE . . . . . . . . . . . . 7-37
7.20 PARTS CATALOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-39
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IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY
1. Before disassembling or assembling parts of the machine, make sure
that the power cord is unplugged.
2. The wall outlet should be near the machine and easily accessible.
3. If any adjustment or operation check has to be made with exterior covers
off or open while the main switch is turned on, keep hands away from
electrified or mechanically driven components.
HEALTH SAFETY CONDITIONS
1. If you get ink in your eyes by accident, try to remove with eye drops or
flush with water as first aid. If unsuccessful, get medical attention.
2. If you ingest ink by accident, induce vomiting by sticking finger down
throat or by giving soapy or strong salty water to drink.
OBSERVANCE OF ELECTRICAL SAFETY STANDARDS
1. The printer and its peripherals must be installed and maintained by a
customer service representative who has completed the training course
on those models.
SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL
1. Dispose of replaced parts in accordance with local regulations.
2. Used ink and master should be disposed of in an environmentally safe
manner and in accordance with local regulations.
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OVERALL MACHINE INFORMATION (C225)
DETAILED SECTION DESCRIPTION (C217)
DETAILED SECTION DESCRIPTION (C225)
INSTALLATION (C217)
INSTALLATION (C225)
SERVICE TABLES (C217)
SERVICE TABLES (C225)
REPLACEMENT AND ADJUSTMENT (C217)/(C225)
TROUBLESHOOTING (C217)/(C225)
PCRIP-10 PRIPORT CONTROLLER
TAB POSITION 8 TAB POSITION 7 TAB POSITION 6 TAB POSITION 5 TAB POSITION 4 TAB POSITION 3 TAB POSITION 2 TAB POSITION 1
OVERALL MACHINE INFORMATION (C217)
OVERALL MACHINE
INFORMATION
Configuration:
Desk top
Master Making Process:
Digital
Printing Process:
Full automatic one drum stencil system
Image Mode:
Line/Photo
Original Type:
Sheet
Original Weight:
(17.0 lb~90 lb)
Original Size:
Max:
Min:
216 mm x 356 mm (81/2" x 14")
90 mm x 140 mm (31/2" x 51/2")
Paper Size:
Max:
Min:
216 mm x 356 mm (81/2" x 14")
90 mm x 140 mm (31/2" x 51/2")
Paper Weight:
(18 lb~110 lb)
Printing Area:
210 mm x 349.6 mm (8.3" x 13.8") or less
Printing Speed:
70/100/130 cpm (3 settings)
First Print Time:
28 seconds ± 2 seconds
Leading Edge Margin:
5 mm ± 2 mm (0.2" ± 0.08")
Trailing Edge Margin:
1 mm ± 1 mm
Left Side Margin:
5 mm~10 mm (0.2"~0.4")
Right Side Margin:
5 mm~10 mm (0.2"~0.4")
Paper Feed Table Capacity:
500 sheets (80 g/m2, 20.0 lb)
Paper Delivery Table Capacity:
500 sheets (80 g/m2, 20.0 lb)
Master Eject Box Capacity:
More than 15 masters
ADF Original Capacity:
6 sheets or a 0.6 mm height
SM
1-1
C217
Overall
Machine
Information
1. SPECIFICATION
Weight:
51 kg (112 lb)
Power Source:
120 V 60 HZ more than 2.4 A
Power Consumption:
Master Making:
Printing:
Dimensions:
(W x D x H)
[Stored]692 mm x 612 mm x 440 mm
(26.2" x 24.1" x 17.3")
[Set up]
1050 mm x 612 mm x 440 mm
(41.3" x 24.1" x 17.3")
Pixel Density:
300 dpi
Print Counter:
7 digits
Master Counter:
6 digits
Noise Emission:
(Sound Pressure level*)
*= The measurements are to be
made according to ISO7779,
respectively.
Less than 70 dB
Master Making:
Printing:
70 cpm:
100 cpm:
130 cpm:
Optional Equipment:
Key Counter, Tape Dispenser
Less than 160 W
Less than 160 W
54 dB
62 dB
64 dB
68 dB
Consumables:
Name
Thermal master
Size
Length: 125 m (410 ft)/roll
Width: 240 mm (9.5")
Ink
500 cc/pack
Tape for tape maker
Thermal head cleaner
35 m (114.8 ft)/roll
Cleaner pen – 1pc
Replacement felt – 10 pcs
Cleaner bottle – 1 pc
C217
1-2
Remarks
255 masters can be made per roll.
Storage Conditions:
–10~40°C, 14°~104°F, 10~90% RH
Storage Conditions:
–5~40°C, 23°~140°F, 10~90% RH
Clean the thermal head using the
cleaner after 2 master rolls have
been used.
SM
2. PRINTING PROCESS
3
1
5
6
SM
Overall
Machine
Information
2
4
1. Master Ejection:
Removes the master from the drum and
ejects the used master into the master
eject box.
2. Scanning:
Scans the original image through the
mirror and the lens to the CCD while
feeding the original.
3. Master Feeding:
Converts the scanned CCD image signals
into digital signals which are used by the
thermal head to develop the master. The
generated heat develops the master by
atomizing the plastic coating It is then
clamped and wrapped around the drum
surface. The master is cut to cover the
entire drum surface.
4. Paper Feeding:
Sends paper to the drum section.
5. Printing:
Presses the paper fed from the paper
feed section onto the drum. This transfers
the ink to the paper through the drum
screen and the master.
6. Paper Delivering:
The air knife and exit pawls removes the
printed paper from the drum, and ejects
the paper onto the paper delivery table.
1-3
C217
3. MECHANICAL COMPONENT LAYOUT
28
1
29
2
3
4
5
6
7 8 9 10
11
27
12
26
13
25
14
24
15
23
1. Mirror
2. Original Feed Roller
3. Original Pressure Plate
4. Exposure Lamp
5. Exposure Glass
22
21
20
19
18
17
16. Friction Pad
17. 2nd Feed Roller
18. Doctor Roller
19. Press Roller
20. Ink Roller
6. Original Friction Pad
7. Original Pick-up Roller
8. Master Tension Roller
9. Plotter Roller
10. Thermal Head
21. Exit Pawl
22. Exit Rollers
23. Paper Delivery Table
24. Drum
25. Master Eject Box
11. Master Roll
12. Plotter Unit
13. Ink Pump
14. Paper Table
15. Paper Feed Roller
26. Master Eject Roller
27. CCD Unit
28. Original Exit Tray
29. Master Eject Unit
C217
16
1-4
SM
2
5
4
3
6
7
8
Overall
Machine
Information
4. DRIVE LAYOUT
9
1
10
11
12
18
17
16
15
14
13
1. Pump Drive Gear
10. Master Eject Motor
2. Ink Supply Motor
11. Master Clamper Motor
3. Platen Roller Gear
12. Master Clamper Drive Gear
4. Original Feed Motor
13. Exit Roller Pulley
5. Original Pick-up Roller
14. 2nd Feed Motor
6. Original Feed Roller
15. Main Motor
7. Drum Drive Gear
16. 2nd Feed Roller Gear
8. Upper Master Eject Roller Gear
17. Paper Feed Roller Gear
9. Lower Master Eject Roller Gear
18. Master Feed Motor
SM
1-5
C217
5. ELECTRICAL COMPONENT DESCRIPTION
Index No.
Name
Function
P to P
Location
Motors
11
24
27
30
33
36
38
43
44
47
Solenoid
29
Master Feed
Pressure Plate
Main
Master Eject
Original Feed
Master Cutter
Ink Supply
Feeds the master to the drum.
Drives the pressure plate.
Drives paper feed, drum, printing and paper
delivery unit components.
Drives the 2nd feed roller.
Open and closes the master clamper.
Rotates the fan to separate the paper from
the drum.
Sends used master into the master eject box.
Transports the original for scanning.
Cuts the master.
Drives ink pump to supply ink.
Pressure Release
Solenoid
Releases the press roller to apply printing
pressure.
2nd Feed
Master Clamper
Air Knife
F-5
F-6
F-2
B-7
B-7
B-7
F-6
A-3
F-4
B-6
B-6
Sensors
1
3
13
14
15
16
17
18
25
28
31
35
37
46
Master End
Detects if the plotter unit runs out of master
roll.
Informs the CPU of the original position.
Original Registration
(Upper: light receiver, Also, detects original misfeed.
Lower: light emitter)
Feed Jam Timing
Determines the paper misfeed check timing.
Paper End
Detects if the paper is set on the paper table.
Registration
Detects misfeeds. In 2nd feed roller area .
Feed Start Timing
Determines the paper feed start timing.
Exit Jam Timing
Determines the paper misfeed check timing.
Master Eject Position Detects master eject position of the drum.
Drum Master
Detects if the master is on the drum.
Exit
Detects paper misfeeds.
Master Eject
Detects used master misfeeds.
Full Master
Detects if the master eject box is full.
Pressure Plate H.P.
Detects the pressure plate home position.
Original Set
Detects if the original is set on the original
table.
F-4
A-2
A-3
F-7
F-7
F-7
F-7
F-8
F-7
F-8
F-8
F-6
F-6
F-6
A-3
Switches
5
6
9
20
21
22
26
C217
ADF Open
Left Cutter
Master Cut
Scanner Unit Open
Delivery Cover Open
Main
Master Eject Box
Check if the ADF is open.
Determines the left limit position of the cutter.
Starts the cutter motor to cut the master.
Checks if the scanner unit is open.
Checks if the delivery cover is open.
Turns the power on or off.
Checks if the master eject box is set
correctly.
1-6
A-3
F-5
F-5
F-1
F-1
B-1
F-1
SM
34
45
Name
Master Clamper
Right Cutter
Printed Circuit Board
Lamp Control
4
Operation Panel
8
Main
12
Power Supply
19
Main Motor Control
23
Noise Filter
32
39
40
CCD
A/D Conversion
Function
Detects the master clamper open/close
position.
Determines the right limit position of the
cutter.
Controls the power to the exposure lamp.
Interfaces the CPU and the operator.
Controls all machine functions.
Provides power for all DC components.
Controls the main motor speed.
Filters electrical noise on the AC power input
lines.
Converts light intensity into an electrical
signal.
Converts the analog signals into digital
signals.
P to P
Location
F-8
F-5
A-2
B-5
C-5
D-1
F-2
A-1
A-5
A-4
Counters
7
10
Print
Master
Keeps track of the total number of prints
made.
Keeps track of the total number of masters
made.
F-5
F-5
Others
2
41
42
SM
Thermal Head
Paper Feed Clutch
Exposure Lamp
Plots the master using heat.
Transmits the main motor drive to the paper
feed roller at an appropriate timing.
Applies light to the original for exposure.
1-7
E-2
B-6
A-2
C217
Overall
Machine
Information
Index No.
ELECTRICAL COMPONENT LAYOUT
C217
1-8
SM
A/D Conversion PCB
Binary Processing Circuit
A/D
Convert
EPROM
RAM
EPROM
RAM
Gate
Array
Gate
Array
AC POWER
(120V or 220V)
Thermal Head Drive
RAM
RAM
Thermal Head
Gate
Array
Exposure
Lamp
Noise Filter
PCB
Main Switch
Main Control
Lamp Control
PCB
I/O
Panel
Controller
I/O
CPU
+20V
Programable
Counter
EPROM
Operation
Panel
I/O
Programable
Counter
Power
Supply
PCB
+5V, +/-12V, +24V,
+38V
RAM
1-9
+5V, +12V,
+38V
Feed Control
EPROM
Sensors
Switches
CPU
Programable
Counter
Motor
Controller
EPROM
CPU
Motor
Controller
Driver
Driver
Main Motor
Control PCB
This diagram shows the control system
of the machine.
M
2nd Feed Motor
Solenoid
Clutch
Motors
Counters
M
C217
Main Motor
Overall
Machine
Information
6. OVERALL MACHINE CONTROL
SM
Main PCB
CCD PCB
DETAILED SECTION
DESCRIPTIONS
1. MASTER EJECT
1.1 OVERALL
[B]
Detailed
Section
Descriptions
[A]
[C]
At the end of the printing cycle, the used master remains wrapped around
the drum to prevent the ink on the drum surface from drying. When the
Master Making key is pressed to make a new master, the used master is
removed from the drum.
The machine checks if the drum is at the master eject position and if the
master is on the drum by the drum master sensor. The master clamper [A]
then opens to eject the master. If there is no master on the drum, the
machine skips the master eject operation and starts the master making
process.
The master eject rollers [B] turn for 0.5 seconds to pick up the leading edge
of the used master. After closing the master clamper, the drum starts rotating
in the slowest speed (30 rpm). At the same time the master eject rollers turn
and feed the used master into the master eject box [C].
When the drum stops at the master feed position after one and a half turns,
the pressure plate drive motor starts turning to compress the used master in
the master eject box.
SM
2-1
C217
1.2 MASTER CLAMPER OPEN MECHANISM
[B]
[J]
[E]
[J]
[A]
[D]
[C]
[K]
[G]
[K]
[E]
[H]
[F]
When the Master Making key is pressed the master eject position sensor [A]
is used to confirm that the drum is positioned at the master eject position
Normally, the drum is stopped at this position after every print job. If the
drum is not at this position, the machine first moves the drum to the master
eject position before opening the master clamper.
The drum is moved to the eject position and locked using a "V" shaped notch
on the rear of the drum positioning guide [J] to locate and lock the drum
positioning stud [K]. A second stud, 180 degrees from the first, is used to
position the drum during master feeding operations.
The master clamper has two springs [B] and a magnet plate [C] to secure
the master’s leading edge in the clamper. The clamper is fixed on the
clamper shaft [D] which has a lever [E] at the rear side.
The clamper motor [F] drives the moving link [G] and pushes up the clamper
lever [E].
The master clamper then lifts the master eject arm [H] to release the
master’s leading edge from the clamper.
C217
2-2
SM
1.3 MASTER EJECT ROLLER MECHANISM
Detailed
Section
Descriptions
[B]
[C]
[A]
The master eject rollers are driven by the master eject motor [A] through idle
gears. The upper eject roller [B] has paddles to assure that the master is
picked up.
When the master clamper is opened and the master’s leading edge is
released from the master clamper, the master eject motor turns on for 0.5
seconds to pick up the leading edge of the used master.
When the master eject motor is turned off, the master clamper motor turns in
reverse direction to close the master clamper.
The drum then starts turning at the slowest speed (30 rpm). At the same
time, the master eject rollers turn again to feed the master into the master
eject box.
After one turn of the drum, the master eject motor stops. The drum continues
turning for a half turn and stops at the master feed position.
The master eject sensor [C] is used to detect master eject jams.
SM
2-3
C217
1.4 PRESSURE PLATE MECHANISM
[F]
[A]
[D]
[E]
[B]
[C]
[E]
[D]
[B]
[E]
The pressure plate motor [A] drives the pressure plate [E] through the drive
arm [B] and the pressure springs [C].
When the master has been ejected into the master eject box, the pressure
plate motor turns on and remains on until the full master detection sensor [D]
is actuated by the actuator tab on the pressure plate [E]. When the full
master sensor is actuated, the motor stops. When master making and
cutting are completed, the motor turns in the reverse direction to return the
pressure plate to the home position. When the pressure plate home position
sensor [F] is actuated, the motor stops.
If the full master sensor is not actuated within 2.4 seconds after the pressure
plate motor is activated, the machine stops the motor. The Empty Master
Eject Box indicator blinks after the master making procedure has finished
and the drum is positioned at the master exit position (drum home position).
C217
2-4
SM
2. SCANNER AND OPTICS SECTION
2.1 OVERALL
[B]
[F]
[E]
[A]
[D]
[H]
A/D Conversion
PCB
Main PCB
[J]
[G]
Thermal
Head
Operation Panel
PCB
The first original at the bottom of the stack on the original table is separated
from the other originals by the original pick-up roller [A] and the original
friction pad [B], and is fed across the exposure glass [C]. The scanning starts
when the original is transported 5mm from the scan line. The master plotting
is synchronized with the original feeding.
The light of the exposure lamp [D] is reflected from the original and reflects
off the mirror through the lens [F] to the CCD [E]. The reflector [G]
compensates for shadows from the edges of cut-and-paste originals. A
shading plate [H] installed between the mirror and the lens cuts some of the
light to correct for uneven light intensity between the center and both ends of
the lamp.
The light is changed to an electrical signal in each element of the CCD. The
analog signals from the CCD are converted into 4-bit digital data signals in
the A/D (analog\digital) conversion PCB and sent to the main PCB in which
each 4-bit digital data is converted into 1-bit data. The main PCB holds the
1-bit data for each pixel. The PCB uses the 1-bit data to turn on the thermal
head which will burn each pixel onto the master.
SM
2-5
C217
Detailed
Section
Descriptions
[C]
2.2 ORIGINAL FEED MECHANISM
[A]
[B]
[D]
13 mm
[C]
34 mm
The originals on the original table are detected by the original set sensor [A].
A photo-transistor [B] in the upper position and an LED [C] in the lower
position make-up the original registration sensor.
After the master on the drum is ejected to the master eject box, the original
feed motor (stepper motor) starts rotating to feed the original to the exposure
glass [D]. When the original is transported 13 mm past the original
registration sensor, the original feed motor stops. At this time the original
leading edge is aligned with the CCD scan line on the exposure glass. Then
the original feed motor starts again synchronizing with the master feed.
The original pick-up roller keeps turning after the original trailing edge
passes the roller, so if a 2nd original is present, it will be fed directly after the
trailing edge of the 1st original.
After the 1st originals trailing edge is detected and transported 12 mm past
the original registration sensor, the original set sensor checks whether the
next original is present. If no original is detected, after the original trailing
edge passes the original registration sensor, the original is transported
further 35 mm (34+1) and fed out. If the next original is detected, the
originals are transported 1 mm further to align the 2nd original leading edge
with the scan line (the 2nd original has been transported a total of 13 mm
from the original registration sensor), then the original feed motor stops.
After printing of the 1st original is completed, the original transport motor
starts again for the next original.
C217
2-6
SM
2.3 ORIGINAL FEED DRIVE MECHANISM
[A]
Detailed
Section
Descriptions
[D]
[C]
[B]
The pick-up roller [C] and the original feed roller [B] are driven through gears
by the original feed motor [A] (stepper motor).
The original feed roller [B] diameter is a little bit larger than the original
pick-up roller [C], so that a small gap is made between the continuous
originals while being transported. A one-way clutch is installed in the pick-up
roller gear [D] to absorb the speed difference between the pick-up roller and
the original transport roller.
SM
2-7
C217
3. MASTER FEED
3.1 OVERALL
[A]
[C]
[B]
[E]
[D]
The master material is fed by the platen roller [A] across the thermal head
[B]. When the drum is at the master feed position and the master clamper is
opened, the tension roller [C] is released by the master clamper so that the
master’s leading edge is fed into the master clamper [D]. The leading edge
of the master is clamped by the master clamper, and the master is wrapped
completely around the drum surface and then is cut by the cutter [E].
The drum is moved to the eject position and locked using a "V" shaped notch
on the rear of the drum positioning guide [J] to locate and lock the drum
positioning stud [K]. A second stud, 180 degrees from the first, is used to
position the drum during master feeding operations.
C217
2-8
SM
3.2 MASTER FEED MECHANISM
[B]
Detailed
Section
Descriptions
[D]
[C]
[F]
[E]
[A]
A stepper motor is used for the master feed motor [A] to drive the platen
roller [B]. The thermal head is pressed against the platen roller by the
pressure springs. The pressure can be released by the pressure release
lever [C] for master roll replenishment.
After the master eject procedure is finished, the drum is stopped at the
master feed position and the master clamper is opened for the new master.
The master’s leading edge is stopped on the guide plate [D] after the last
master cutting procedure or after the master is cut manual. The master is fed
for 23 mm and stopped once to synchronize with the original feed. The
master is fed for a further 67.5 mm before the master clamper is closed.
Since the clamper closing timing is later than when the master’s leading
edge reaches the clamper, a master buckle [E] is made on the master feed
guide. This master buckle absorbs the shock wave from the master clamping
operation.
The drum then turns intermittently in the slowest mode (30 rpm) to wrap the
master around the drum. The intermittent rotation keeps the master buckle
on the master feed guide to absorb the shock wave from the wrapping
operation. The tension roller [F] is pressed to the guide plate which gives the
tension to the master during the master wrapping operation.
SM
2-9
C217
3.3 MASTER CLAMPER OPERATION AND TENSION ROLLER
RELEASE MECHANISM
[B]
[C]
[A]
[D]
[C]
[E]
When the master eject is completed, the drum is stopped at the master feed
position. At this time, the clamper motor [A] drives the moving link [B] to
open the master clamper [C].
The friction roller [D] is normally pressed against the master feed guide plate
to give tension to the master during the master wrapping operation. When
the clamper is opened, the clamper pushes the friction roller arms [E] and
releases the friction roller from the guide plate to allow the master to be fed
into the master clamper.
To close the master clamper, the clamper motor turns in the reverse
direction.
C217
2-10
SM
3.4 CUTTER MECHANISM
[G]
[D]
[H]
[A]
Detailed
Section
Descriptions
[E]
[I]
[B]
[C]
[F]
After the master making process is finished, the master feed motor turns off
and the cutter motor [A] starts turning.
The cutter motor drives the pulley [B] and the timing belt [C]. The cutter
holder [D] is mounted on the timing belt and has a switch actuator [E] at
each end.
The cutter mechanism is bi-directional. As the cutter travels in one direction
the master will be cut. During the next cutting operation, the cutter will travel
in the opposite direction.
There are two cutter position switches one at the front [F] and one at the rear
[G] of the cutter rail. When the cutter holder actuates one of these switches
at the end of cutter holder drive operation, the cutter motor is turned off.
The inner roller [H] on the shaft of the rotary cutter blade [I] is touching the
cutter rail, so that the cutter blade is rotating while the cutter holder is moving.
After the master cut operation, the drum starts turning again to wrap the
remaining part of the master around the drum. At the same time, the master
is fed another 32.6 mm ready for the next master making.
SM
2-11
C217
4. PAPER FEED SECTION
4.1 OVERALL
[A]
[C]
[B]
The sheet of paper on the paper feed table is separated by the paper feed
roller [A] and the friction pad [B], and transported to the 2nd feed rollers [C].
The upper and lower 2nd feed rollers transport the sheet to the drum.
The paper feed roller is driven by the main motor, and an independent
stepper motor is used to control the 2nd feed rollers. The 2nd feed rollers
synchronize the paper feed timing with the image on the drum.
After the paper has come into contact with the 2nd feed rollers and the paper
is corrected for skew, the rollers will start rotating.
C217
2-12
SM
4.2 PAPER FEED ROLLER MECHANISM
Detailed
Section
Descriptions
[C]
[D]
[A]
[E]
[B]
The paper feed roller [A] is driven by the main motor [B] through gears and a
timing belt.
During the printing cycle, when the feed start timing sensor [C] is actuated by
the actuator on the drum, the electromagnetic clutch [D] is energized to
transmit the main motor rotation to the paper feed roller shaft. The top sheet
of paper is separated from the paper stack by the friction between the feed
roller [A] and the friction pad [E], and is transported to the 2nd feed roller.
A one-way clutch is installed in the paper feed roller so that after the
electromagnetic clutch is de-energized, it does not disturb paper
transportation.
SM
2-13
C217
4.3 2ND FEED ROLLER MECHANISM
[A]
[B]
The lower 2nd feed roller [A] is driven by a stepper motor [B]. The main PCB
controls the 2nd feed roller start timing to synchronize the image on the drum
master and the printing paper.
The stepper motor rotation speed is changed according to the printing
speed. Also, by pressing the image position keys on the operation panel, the
2nd feed timing is changed. If the paper feed timing is delayed, the image is
shifted forward (smaller lead edge margin). If the paper feed timing is
advanced, the image is shifted backward (large lead edge margin).
After the printing paper is caught between the drum and the press roller, the
feed roller stepper motor stops.
C217
2-14
SM
4.4 UPPER 2ND FEED ROLLER RELEASE MECHANISM
Detailed
Section
Descriptions
[D]
[A]
[C]
[B]
When the feed roller stepper motor stops, the upper 2nd feed roller is
released from the lower 2nd feed roller. This is to prevent interference of the
2nd feed rollers while the paper is transported by the drum and the press
roller.
When the cam follower [A] reaches the top of the cam [B] which is installed
on the drum drive gear, the shaft [C] rotates clockwise (as seen from the
operation side) to release the upper 2nd feed roller [D] from the lower 2nd
feed roller.
If no image shifting mode is used (the image position indicator is at the "0"
position), the upper 2nd feed roller is released when the paper is transported
30mm after reaching the press roller. Even if the paper feed timing is fully
delayed (Max. 15 mm), the paper leading edge reaches to the press roller
before the upper 2nd feed roller is released.
SM
2-15
C217
4.5 PRINTING PRESSURE MECHANISM
[I]
[E]
[G]
[D]
[H]
[B]
[F]
[C]
[A]
While the machine is not in the printing cycle, the solenoid [A] stays off and
the stoppers [B] lock the brackets [C] to keep the press roller [D] away from
the drum.
When the 1st sheet of paper is fed, the solenoid is energized but the
brackets are still locked by the stoppers due to strong tension of the springs
[E]. When the cam followers [F], mounted on both sides of the press roller
shaft, reach the top of the cams [G] on the front and rear drum flanges, a
small clearance is made between the stoppers and the brackets. They are
then released from the brackets. Printing pressure is applied by tension of
the springs when the cam followers reach the bottom of the cams.
During the printing cycle, the solenoid stays on. However, if paper does not
reach the registration sensor [H] at the proper timing (at this time, the cam
follower is on the top of the cam), the solenoid is de-energized to lock the
brackets.
The printing pressure is released when the cams push down the cam
followers so that the press roller does not contact the master clamper [I].
C217
2-16
SM
Detailed
Section
Descriptions
After printing is finished, the solenoid is de-energized and the stoppers
return by tension of the springs. Before the drum returns to the home
position, the bracket is locked by the stopper again when the cams push
down the cam followers.
SM
2-17
C217
4.6 PAPER TABLE
[G]
[H]
[F]
[A]
[E]
[B]
[D]
[C]
[C]
[B]
[D]
Paper on the paper table is lifted up to contact with the paper feed roller by
two springs [A]. When the lever [B] is lowered, the bearing [C] lifts up the
arm [D] to rotate the shaft [E] counterclockwise. The bracket [F] pushes
down the stay [G] and the paper table is lowered. The arm [D] hooks the
bearing [C] to stop the table in the lower position to allow easy paper setting.
A photo-interrupter [H] is installed under the paper table to detect paper on
the table.
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Detailed
Section
Descriptions
[A]
[B]
The paper feed roller pressure can be channeled by changing the position of
the pressure adjustment levers [A]. Normally the levers should be in the
upper position. If paper pick-up jams occurs frequently, the levers should be
lowered to increase the pressure.
If paper multifeed occurs frequently, the side pads [B] should be installed to
apply stopping pressure to the paper.
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C217
4.7 SIDE FENCE SLIDE MECHANISM
[D]
[A]
[E]
[B]
[C]
The paper table side fences [A] are installed on the shaft [B]. When the lever
[C] is pinched, the stopper [D] is released from the shaft and either fence can
be moved independently. By turning the dial [E], the shaft and the side
fences move together side to side changing the paper position on the paper
table. If the dial is turned clockwise, the fences move to the left.
C217
2-20
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5. DRUM
5.1 OVERALL
[A]
Detailed
Section
Descriptions
[B]
[C]
[F]
[D]
[E]
The drum consists of a metal screen [A] and a cloth screen [B].
The ink pump supplies ink from the ink cartridge into the drum through the
drum shaft [C]. Ink is then spread evenly to the screens by the ink roller [D]
and doctor [E] roller. The developed master [F] with the plastic coating
removed from the image area allows the ink to flow through the exposed
porous material.
The drum is driven by the main motor and turns only clockwise (from the
operator side). The motor speed and the drum stop positions are controlled
by monitoring the main motor encoder.
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C217
5.2 DRUM DRIVE MECHANISM
[C]
[B]
[D]
[A]
The drum is driven by the main motor (DC motor) through a timing belt [A]
and gears [B]. The main motor has an encoder which sends pulses to the
main PCB. The main PCB monitors the pulses and controls the drum speed
and stop positions.
The drum has two stop positions as follows:
1) Master eject position/ Home position
2) Master feed position
These stop positions are determined by checking the feed start timing
sensor [C]. The main PCB starts counting the main motor encoder pulses
when the feed start timing sensor is actuated. The following pulse count
numbers are assigned for drum stop timing.
1) 440 pulses for the master eject position
2) 64 pulses for the master feed position
When the drum is stopped at the master eject position, the master eject
position sensor [D] is actuated. When the master eject operation is started,
the main PCB confirms if the drum is at the master eject position by this
sensor [D].
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Detailed
Section
Descriptions
5.3 MAIN MOTOR CONTROL
The main motor is driven by the main motor control PCB. The main PCB
sends the speed signals (0 and 1), the main motor ON trigger, and the motor
brake trigger to the main motor control PCB. According to the combination of
two speed signals, the main motor control PCB can select on to of four
possible main motor speeds.
The main motor speed is converted in half for the drum rotation by the gears
and timing belt. The drum rotates at 30rpm while the main motor rotates at
60rpm. This lowest possible speed also is used for the master eject and feed
operations. For the master wrapping process, the main PCB sends the main
motor ON trigger as a pulse signal. As a result, the drum turns intermittently
at 30rpm.
The main motor speed is maintained by the main motor control PCB which is
monitoring the encoder pulses from the main motor.
CN108-4 (Speed 1)
CN108-5 (Speed 0)
Motor Speed
Drum Speed
SM
L
L
60 rpm
30 rpm
L
H
140 rpm
70 rpm
2-23
H
L
200 rpm
100 rpm
H
H
260 rpm
130 rpm
C217
5.4 INK SUPPLY MECHANISM
[B]
[D]
[G]
[E]
[A]
[F]
[C]
Ink is supplied from the ink cartridge [A] to the ink roller [B] by a pump [C].
The ink pump is driven by the ink supply motor (DC motor) [D] through
gears. There is a pin on the pump drive gear [E] which is coupled with the
pin holder [F] on the pump piston shaft. This mechanism converts the gear
rotating motion into the piston vertical alternating motion.
Two holes on the drum shaft [G] drop ink on to the ink roller [H].
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5.5 INK ROLLER MECHANISM
[C]
[B]
Detailed
Section
Descriptions
[D]
[A]
[E]
[F]
The ink roller [A] and the doctor roller [B] are driven by the gear [C] on the
drum shaft. Ink supplied on the ink roller is squeezed by the doctor roller and
an even thickness ink layer is applied to the ink roller. The ink drive gear [D]
has a one-way clutch to prevent the ink roller from turning in the reverse
direction when the drum is turned in the reverse direction manually.
The ink roller only touches the screen [E] during printing. During the printing
process, the ink on the ink roller is applied to the paper through holes in the
screens and master. This happens while the drum screen and the master
are held against the ink roller by the pressure roller [F] located underneath
the drum.
SM
2-25
C217
5.6 INK SUPPLY CONTROL
[A]
[B]
[C]
[D]
The ink detection pins [A] work like the electrode of a capacitor and detect
the capacitance between the detection pins and the ink [B] and doctor [C]
rollers. This capacitance is different when the ink level is high and the pins
touch ink, compared to when the ink level is low and the pins do not touch
ink. By detecting the capacitance, the ink supply motor is controlled to keep
the ink level.
The ink roller blade [D] is installed on both ends of the ink roller to scrape off
the built-up ink on the ink roller edges.
C217
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[B]
TP102
Timer IC
1
2
OUT 1
5
M
TH1
LED101
VR101
12
TH2
9
OUT 2
+
_
P
Main PCB
(Less Ink)
(Sufficient Ink)
+
Detailed
Section
Descriptions
TP103
[A]
+
CPU
To
To
T1
T2
TP102
TP103
P
LED101
ON
OFF
A timer IC is used to detect the ink level. The IC produces two pulse signals.
TP102 outputs the standard pulse signal, the standard pulse length T0 is
determined by the VR101. TP103 outputs the detection pulse. This pulse
length is determined by the capacitance between the detection pins and ink
and doctor rollers.
(Sufficient ink condition)
When the ink level is high and the pins [A] are touching the ink, the
capacitance becomes large and increases the detection pulse length (T1).
When the detection pulse length is longer than the standard pulse length
(T0<T1), "P" becomes low and turns on the LED101. While the CPU is
receiving the low signal at "P", the CPU recognizes that ink level is sufficient
and does not turn on the ink supply motor [B].
(Less ink condition)
When the ink level is low, the capacitance is lowered and decreases the
pulse length (T2). When the detection pulse length is shorter than the
standard pulse length (T0>T2), "P" becomes high and turns off the LED101.
While the CPU is receiving the high signal at "P", the CPU recognizes that
the ink level is low and turns on the ink supply motor to supply ink until the
signal at "P" becomes low.
SM
2-27
C217
Rev. 10/20/93
(Ink End Condition)
If the less ink condition is detected continuously for more then 25 seconds
during the print cycle, the CPU stops the printing process and turns on the
Ink End indicator.
When printing starts in the less ink condition, the main motor keeps turning,
and turns on the ink supply motor turns on until the ink level returns to a
sufficient level. If the ink returns to a sufficient level within 25 seconds, the
machine starts the printing operation. If not, the machine lights the Ink End
indicator.
A beeper sounds intermittently while the machine is idling during the ink
supply.
The machine has a forced ink supply mode. When the Reset key is pressed
while holding down the "0" key, the machine starts the ink supply operation.
This operation continues for 50 seconds and stops automatically when ink
reaches a sufficient level. If ink is not needed and the process was
commenced it will proceed normally but the ink supply motor will not operate.
(To Disable Ink Detection Circuit)
The ink detection circuit can be disabled if the main switch is turned on while
both the Auto Cycle key and the Reset key are pressed. If this mode is
accessed, prints can be made even though the ink detection pin is not in
contact with the ink on the ink roller (see page 2-26 Ink Supply Control).
When the main switch is turned off, this condition is reset to normal
operation.
This function serves to remove the ink inside the drum.
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6. PAPER DELIVERY SECTION
6.1 OVERALL
[B]
Detailed
Section
Descriptions
[A]
[D]
[C]
[E]
The exit pawls [A] and the air knife [B] separate the paper from the drum.
The paper is delivered to the paper delivery table [C] by the upper and lower
exit rollers [D].
There is a photoreflector type photosensor mounted between exit roller
assemblies [E] to detect paper jams.
SM
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C217
6.2 PAPER DELIVERY ROLLER
[C]
[A]
[D]
[E]
[A]
[B]
The lower exit rollers [A] are driven by the main motor [B] through the timing
belt. The upper exit rollers [C] and the lower exit rollers catch the paper and
transport it to the delivery table.
The lower exit roller are controlled by green plastic guide plates [D] which
are mounted to the exit pawl. This allows the upper and lower exit rollers to
move together.
Each roller position should be adjusted according to the paper position on
the paper table, so that the upper and lower exit rollers catch 5 mm inside of
the paper edge to transport it. The paper size indicator [E] shows the
standard delivery roller position for each paper size.
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6.3 EXIT PAWL/AIR KNIFE
[F]
[D]
Detailed
Section
Descriptions
[B]
[E]
[C]
[A]
The air from the air knife nozzle [A] and the exit pawls [B] separate paper
from the drum.
The air knife motor starts blowing air when the print start key is pressed or
master cutting is completed. The paper passes under the exit pawls and is
caught by the exit rollers. The motor stops when the last sheet of paper is
fed out.
The upper exit rollers [D] are installed on the exit pawls. They are pushed
against the lower exit rollers [E] by tension of the springs [F].
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C217
6.4 EXIT PAWL RELEASE MECHANISM
[B]
[C]
[A]
[D]
[E]
The exit pawls [A] move away from the drum when the master clamper [B]
approaches the pawls. This is controlled by the cam [C] installed on the front
drum flange and the two cam followers [D and E] installed on the exit pawl
shaft. The two cams allow enough time to move the pawls away from the
drum.
While the cam followers are not on the top of the cam, the distance between
the pawls and the drum is very small to prevent paper wrap jams. At this
time, the distance is determined by the stopper, and the cam followers are
not in contact with the cam. However, when the master clamper approaches
the exit pawls, the pawls must be moved away from the drum to avoid
contact and damage against the master clamper. As the master clamper
approaches the exit pawls, the cam moves into contact with the cam follower
pushing them down. This rotates the cam follower arm, and the pawl shaft
clockwise, to move the pawls away from the drum. When both cam followers
are out of contact with the cam, the pawls move back towards the drum to
their normal position.
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7. JAM DETECTION
7.1 ORIGINAL JAM DETECTION
[A]
Detailed
Section
Descriptions
[B]
13 mm
34 mm
Original jams are detected by the original set sensor [A] and the original
registration sensor [B]. The misfeed indicator (
+ A) lights with the
following conditions:
1) When the main switch is turned on, if the original registration sensor
is interrupted.
2) When the original set sensor is actuated, if the original registration
sensor does not detect the original leading edge within 3 seconds
after the Master Making key is pressed.
3) If the original registration sensor does not detect the trailing edge of
the original within 4 seconds after the original leading edge is
transported 355.6 mm from the original registration sensor.
4) If the original stops interrupting the original registration sensor after
the stop key is pressed while scanning.
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C217
7.2 MASTER EJECT JAM DETECTION
[B]
[A]
The master eject jams are detected by the master eject sensor [A]. The
misfeed indicator (
+F) lights in the following conditions:
1) If the master eject sensor is actuated when the main switch is turned
on.
2) If the master eject sensor is not actuated within 0.3 seconds after the
drum started turning to feed the master into the master eject box.
3) If the master eject sensor is not actuated when the drum makes a
half turn and passes the feed jam timing sensor [B]. This is the case
when the picked up master leading edge is pulled back to the drum
and the master remains on the drum. (The jam indicator lights after
the drum returns to the home position.)
4) If the master eject sensor is actuated when the pressure plate is
returned to the home position. This is the case when the master
trailing edge sticks on the pressure plate and is pulled back to the
master eject rollers.
C217
2-34
SM
7.3 MASTER FEED JAM DETECTION
Detailed
Section
Descriptions
[A]
[B]
[C]
There is no master feed sensor on the master paper feed path to detect
master feed jams. The master feed jam is detected by the drum master
sensor [A] which detects the presence of a master on the drum.
When the drum is stopped at the master exit position prior to the start of
printing. After master making, if the master sensor [B] does not detect the
master on the drum, the master misfeed indication (
+ C) will be displayed
on the operation panel. (The master eject position sensor [C] is used to
confirm that the drum is positioned at the master eject position.)
SM
2-35
C217
7.4 PAPER FEED JAM DETECTION
[C]
[E]
[A]
[B]
[D]
Paper jams are detected by the registration sensor [A] and the exit sensor
[B]. Jam detection timing is determined by the drum position sensors and the
main motor encoder. The timing chart on the next page shows the jam
detection timing.
C217
2-36
SM
N
Feed Start
Timing Sensor
Feed Jam
Timing Sensor
t
Detailed
Section
Descriptions
Exit Jam
Timing Sensor
Registration
Sensor
a) ON Check
c) B or E Jam Identification
Exit Sensor
b) OFF Check
c) ON Check
a) When the CPU counts a determined number of pulses (N) from the
main motor after the feed start timing sensor [C] is actuated, if the
registration sensor does not detect the paper, B +
light.
b) When the exit jam timing sensor [D] is actuated, if the exit sensor
remains activated, G +
light.
c) When the determined time (t) (this time depends on the drum speed)
is counted after the exit jam timing sensor is actuated, if the exit
sensor is not activated, the machine detects a paper jam. If this jam
condition is detected, the main PCB stops the next paper from being
fed. When the feed jam timing sensor [E] is actuated:
1. If the registration sensor is activated, a 2nd feed failure is
detected.
(B +
)
2. If the registration sensor is not activated, a paper wrap jam is
detected. (E +
).
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C217
8. IMAGE PROCESSING
Image processing resolves how to transform an optical image of a
continuous line, made up of an infinite number of color shades, into 2592
lined-up dots (pixels), each of which is black or white.
There are two basic sub-processes: first A/D conversion, i.e. converting an
analog image to 4-bit digital data representing 16 shades of gray; second
binary processing, i.e. transforming that digital data into black or white pixels.
8.1 A/D CONVERSION
(1)
(2)
(4)
OS
CCD
DOS
Inversion &
Amplification
Shading
Distortin
Correction
Peak
Hold
(3)
(5)
VB
VPH
Black
Level
VS
(8)
VH
M1
M2
M3
VL
A/D Conversion
(6) Parameter
Setting
A/D
Converter
(7)
Image mode/Image density
Setting
Shading
Distortion
Memory
4-bit Digital Data to
Binary processing
Circuit
This block diagram shows the A/D conversion process (A/D= Analog to
Digital). The analog signal generated from the CCD is inverted and
amplified. Then the analog signal is converted into a 4-bit digital signal and is
sent to the binary processing circuit.
The following sections (8.1.1 - 8.1.8) will give a brief explanation of the
various steps in the A/D conversion process.
C217
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(1) CCD
The light reflected from the
original exposes the CCD
(Charge Coupled Device) which
can read one complete scan line
at a time. The circuit of each
element in the CCD is shown at
the right. The CCD has 2592
effective elements. The light
reflected from the original is
sensed by a photodiode. A
capacitor stores the electrical
charge corresponding to the
light’s intensity.
Detailed
Section
Descriptions
OS
The electrical charges from the CCD elements are sent to the A/D
conversion PCB one after the other (OS signal).
The CCD always outputs a compensation data signal (DOS signal) with the
OS signal. This DOS signal is used for the inversion and amplification
described below.
(2) Inversion and Amplification
The CCD output is inverted and amplified.
To remove electrical noise, the
difference between the OS signal
and the DOS signal is amplified.
Even if electrical noise intrudes
into the power source of the
CCD, it does not effect the
amplified signal, because the
Inverted &
noise affects both signals
Amplified
identically. Therefore,
CCD Output
substracting the DOS signal from
the OS signal will cancel the noise out.
The amplification ratio can be changed by turning VR201.
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2-39
C217
(3) Shading Distortion Correction
The image data of one main scan line sent from the CCD does not exactly
represent the line of the original image, because of the following reasons:
1) Loss of brightness towards the ends of the fluorescent lamp and the
edge of the lens,
2) Variations in sensitivity among elements of the CCD,
3) Distortions of the light path.
These distortions are corrected by applying individual amplification ratios (α)
to the output of each CCD element. The amplification ratio of each element
is determined so that all the CCD outputs are amplified to match the highest
voltage from the platen cover data when the white platen cover is scanned,.
When the main switch is turned on, the scanner scans the white platen cover
5 times. The white platen covers data which corresponds to each CCD
element is stored as 4-bit digital data in the shading distortion memory circuit
and used for the shading distortion correction.
Actual CCD output
when the white
Corrected output
platen cover is read
A
B
VB
Amplification ratio: α
A+B
α≈
B
(4) Peak Hold (VPH)
Before the analog signal can be converted to digital data, the machine must
know the high and low bounds that match white and black. These bounds
are voltage values.
The low bound is called the black level (VB, see pg. 2-41). The high bound is
called the peak hold value, or VPH.
When the analog signal is digitized, VB and VPH will serve as references to
determine how the CCD output will be distributed over the sixteen different
4-bit values.
C217
2-40
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a) Peak Hold for the Shading Distortion Memory
When the main switch is turned on, the exposure lamp turns on and the
white platen cover is scanned 5 times. The white peak value from the platen
cover scan is held in the peak hold circuit and used to determine the
amplification ratio (α) of the shading distortion memory.
The peak hold from the platen cover scans is erased before original
scanning starts. After original scanning starts, this circuit holds the whitest
image voltage of the 43 mm (512 pixels) width in the middle of the scan line.
The highest value sensed during an original scan is called the original
background peak hold. It does NOT always correspond to a pure white
original, but it will serve to establish the whitest part of the print image. In
other words it will turn a dark background white.
Once a peak hold is recorded, it does not change until a higher (whiter)
value is scanned, or until the next original is scanned.
(5) Black level (VB)
This circuit always outputs 1.4V. This black level voltage is used as a
reference for A/D conversion and as the lower limit of the amplified CCD
output.
SM
2-41
C217
Detailed
Section
Descriptions
b) Original Background Peak Hold
(6) A/D Converter
The analog data VS (amplified
CCD outputs) is changed into
4-bit digital data. The 4 bits of
data represent a number between
0 and 15, for a total of 16 steps.
VPH
15
14
VS
In the A/D conversion circuit, the
difference between VH and VL
(see pg. 2-43) is divided into 16
steps. Each step corresponds to
a VS voltage level.
(Analog Data)
13
12
13
(Digital Data)
11
10
The digital data from the analog
image data (VS signal) is based
on these 16 steps.
9
For example, the amplified CCD
output (VS), whose level is as
shown at right, is changed into
"13" (digital data) to be sent to the
binary processing circuit.
6
8
7
5
4
3
2
1
0
VBPB
(1.4
V)V)
(1.4
A/D Converter
C217
2-42
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Process
Parameter
VH (%)
M1 (%)
M2 (%)
M3 (%)
VL (%)
100
74.0
100
100
100
70.0
80.0
85.0
92.0
86.5
57.0
76.5
79.8
84.5
36.6
43.4
47.9
52.3
73.0
40.0
53.0
59.5
69.0
19.6
24.8
29.0
32.0
59.5
23.0
29.5
39.3
53.5
11.4
15.8
19.9
22.3
46.0
6.0
6.0
19.0
38.0
7.0
11.0
15.0
17.0
Shading Distortion Memory
Lighter
Normal
Line Mode
Darker 1
Image
Darker 2
Setting
Lighter
Photo
Normal
Mode
Darker 1
Darker 2
The A/D conversion parameters
(VH, M1, M2, M3 and VL)
decide how the the VS signal is
distributed over 16 steps. The
parameters are determined
according to VPH, VB, the
image mode setting, and the
image density setting.
VP = VH
VH and VL are the upper and
lower image density bounds. If
a darker image setting is
selected, VH and VL increase
(as shown at right). M1, M2 and
M3 are set to improve image
quality in the photo mode.
M2
The above table shows the
ratio of VPH (100%) and each
parameter at various image
mode settings (deciding the VB
at 0%). The voltage between
each parameter is divided into
further 4 steps, thus the voltage
between VH and VL is divided
into 16.
SM
VP
15
14
13
M1
12
11
VH
10
14
8
13
12
7
M1
6
M3
11
5
10
4
9
3
M2
2
VL
15
9
8
7
1
6
0
5
M3
4
3
2
1
VL
VB (1.4 V)
VB (1.4 V)
Image Mode,
Darker 2
2-43
0
Image Mode,
Lighter
C217
Detailed
Section
Descriptions
(7) A/D Conversion Parameter Setting
Line Mode
Normal
100%
VS
Graph 1
50%
VH
100
M1
76.5
M2
53.0
M3
29.5
VL
6.0
Photo Mode
Normal
VH
80
M1
43.4
M2
M3
VL
24.8
15.8
11.0
0
1.0
0.5
1.5
Original Density
F
Graph 2
Line Mode, Normal
0
1.0
0.5
1.5
Original Density
F
Graph 3
Photo Mode, Normal
0
0.5
1.0
1.5
Original Density
As shown in Graph 1, the relationship between the original density and VS
(amplified CCD output) is not linear due to CCD characteristic.
C217
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In the line mode, M1, M2, and M3 are set so that the distance between each
of them is equal, and the relationship between the original density and the
output digital data are as shown in graph 2.
(8) Shading Distortion Memory
The amplification ratios (α) which corresponds to each CCD elements are
stored as 4-bit digital data in the shading distortion memory circuit and used
for the shading distortion correction.
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C217
Detailed
Section
Descriptions
In the photo mode, M1, M2, and M3 are set so that there are more steps in
the darker area (low sensitivity area). This improves the quality of the
gradation. (Refer to (3) Shading Distortion Correction.)
8.2 BINARY PROCESSING
Binary processing resolves how to transform a line of "gray" pixels (the 4-bit
digital data from A/D conversion) into a line of black and white pixels in such
a way as to preserve the quality of the image.
The binary processing circuit produces 1-bit data (white or black pixels) from
the 4-bit output of the A/D converter, and sends it, as a serial signal to the
thermal head drive circuit. The binary process is different between the line
mode and the photo mode.
1) Line Mode: MTF (Modulation Transfer Function) Correction
2) Photo Mode: Dither Processing and Edge Emphasis Processing
(Edge Emphases Processing is selected only when the DIP-SW 101-6 is
turned on.)
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When the original image is converted to electrical signals by the CCD, the
contrast is reduced. This is because neighboring black and white parts of the
image influence each other due to lens characteristics. This phenomenon is
typical when the width and spacing of the black and white areas are
narrower.
MTF correction counters this phenomenon and emphasizes image detail.
The value of a target pixel is modified according to the value of surrounding
pixels. The modified data is compared to the threshold level. This determines
if the pixel is to be black or white.
Main Scan
Sub Scan
I
H
G
F
E
D
C
B
A
E2 = 2E – 1/2(D + F) ------ Main Scan Data Modified
E1 = 2E – 1/2(B + H) ------ Sub Scan Data Modified
The modified data is compared to a threshold level to determine if the pixel is
black or white.
Modified Data E2 ≥ 8.0 or Data E1 ≥ 8.0 ----- Black
Modified Data E2 < 8.0 and Data E1 < 8.0 ----- White
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C217
Detailed
Section
Descriptions
8.2.1 MTF Correction
8.2.2 Dither Processing
A dither matrix is made of 4 x 4 pixels and contains 16 different threshold
levels for the locations which correspond to 16 pixels of the original image.
Each pixel data (En) from the A/D conversion circuit is compared with the
corresponding threshold level (Vthn) in the dither matrix. Then each pixel
data is converted to either black or white depending on whether the image
data is greater or less than the threshold level.
En > Vthn.............. Black
En ≤ Vthn.............. White
Main Scan
4
Sub
Scan
5
5
5
5
4
8
4
7
7
14
5
14
8
5
3
3
1
5
5
1
0
0
9
9
6
6
2
2
5
5
11
11
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
10
5
5
13
5
5
14
12
5
5
5
5
14
4
8
5
7
10 12
14 13
8
4
14 7
9
3
5
9
3
1
1
0
0
6
6
2
5
2
5
5
11
11
14 13
10
12
10 12
14 13
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
4 x 4 dither matrix
4-bit pixel data to be read
Example: All pixels are at 5.
Threshold level of the
dither matrix (number
shows each Vthn).
Image reappearance
(shaded pixels are
black, showing the
pixels with values
below the threshold )
8.2.3 Edge Emphasis Processing in the Photo Mode
In the photo mode, if characters are processed using the dither method, they
will be difficult to be read due to the distorting nature of the process. To
counter this, when the density difference between a pixel and surrounding
pixels is greater than a specified level, the surrounding pixel data is
processed using MTF instead of the dither process.
C217
2-48
SM
Detailed
Section
Descriptions
8.3 THERMAL HEAD
8.3.1 Thermal Head Control
The thermal head has heating elements at a density of 300 DPI. The thermal
heating elements melt the over-coating and polyester film layers of the
master according to the image signal for each pixel.
The Power Supply PCB applies power (VHD) to the thermal heating
elements. The power source varies from one head to another since the
average resistance of each element varies. Therefore, when the thermal
head or Power Supply PCB is replaced, it is necessary to readjust the
applied voltage with the particular value indicated for each thermal head.
The energy applied to the thermal heating elements is determined by the
length of time (t) at which power is applied.
SM
2-49
C217
The time depends on the thermal head temperature which is detected by the
thermistor on the thermal head. If the temperature is higher, the time (t) will
be shorter.
Long
ENR
Pulse
Length
Short
High
Low
The time(t) is determined when the Master Making key is pressed, and it is
kept until the master making is finished.
8.3.2 Thermal Head Protection
The thermistor on the thermal head and a thermal guard (a thermostat) on
the PSU are used for thermal head protection. This prevents the thermal
head and power supply unit from overheating when continuously processing
a solid image. The CPU detects the abnormal condition when the Master
Making key is pressed, and lights the SC code on the operation panel as
follows:
Detecting Component
Conditions
Thermistor
Over 54°C
Thermistor
Under – 20°C (Thermistor open)
Thermal Guard
Over 85°C
C217
2-50
SC Code
E – 04
E – 09
E – 08
SM
9. MASTER PLOTTING AND PRINTING AREA
1. Length
14" (355.6 mm)
Original
5 mm
Detailed
Section
Descriptions
Master Plotting Length
(349.6 mm)
Master
86.2 mm
Master Length (475 mm)
Screen Mesh Length
(382.4 mm)
6.4 mm
Screen
Printing Pressure (385.2 mm)
Paper
(Shift : 0 mm)
Image Area Length (349.6 mm)
5 mm
(355.6 mm)
9.2 mm
Paper
(Shift : 15 mm)
Image Area Length (339.6 mm)
15 mm
(355.6 mm)
Paper
(Shift : –15 mm) 5 mm
Image Area Length (335.6 mm)
15 mm
SM
(355.6 mm)
2-51
C217
2. Width
81/2" (215.9 mm)
Original
Master Plotting Width
(210 mm)
Master
15 mm
Master Width (240 mm)
5.925 mm
Screen Mesh Width
(220.5 mm)
Screen
Image Width (210 mm)
Paper
(215.9 mm)
C217
2-52
SM
INSTALLATION
1. INSTALLATION REQUIREMENTS
The installation location should be carefully chosen because the
environmental conditions greatly affect the performance of the machine.
Temperature —
Humidity —
SM
10 to 30°C
(50 to 86°F)
20 to 90 % RH
Installation
1.1 OPTIMUM ENVIRONMENTAL CONDITION:
On a strong and level base.
The machine must be level within
5 mm (13/64") both front to rear
and left to right.
3-1
C217
1.2 ENVIRONMENTS TO AVOID:
Locations exposed to direct
sunlight or strong light (more than
1,500 lux).
Dusty areas.
Areas with corrosive gases.
Locations directly exposed to cool air
from an air conditioner or reflected
heat from a space heater. (Sudden
temperature changes from low to
high or vice versa may cause
condensation within the machine.)
C217
3-2
SM
1.3 POWER CONNECTION:
Voltage must not fluctuate more
than 10%.
Installation
Securely connect the power cord
to a power source.
Make sure that the wall outlet is
near the machine and easily
accessible.
Make sure the plug is firmly
inserted in the outlet.
Avoid multiwiring.
SM
Do not pinch the power cord.
3-3
C217
1.4 ACCESS TO MACHINE:
Place the machine near a power source, providing clearance as shown
below.
10 cm (4.0")
Paper
Feed
Table
Paper
Delivery
Table
61 cm
(24.0")
More than
70 cm
(27.6")
More than
60 cm
105 cm (41.3")
(23.7")
C217
More than
60 cm
(23.7")
3-4
SM
Installation
2. INSTALLATION PROCEDURE
1. Make sure that you have all the accessories listed below.
(1) Master Spool....................................................2
(2) Paper Feed Side Pad ......................................2
(3) Thermal Head Cleaner
(Excepting OEM’s USA version) .....................1
(4) Operating Instructions......................................1
(5) NECR (Ricoh version only)..............................1
(6) Installation Procedure
(Ricoh version only)..........................................1
(7) Brand Stickers
(OEM version only)...........................................1 set
(8) Model Name Plates
(OEM version only)...........................................1 set
SM
3-5
C217
[A]
2. Mount the machine on a strong and level base.
NOTE: Use a sturdy desk, etc. The machine must be level within 5 mm
(0.2") both front to rear and left to right.
3. Remove the tape and string securing the covers and units as shown
above.
4. Open the paper feed tray. Then remove the cushion [A] holding the
paper feed table.
5. Firmly insert the plug in the wall outlet.
NOTE: Make sure that the wall outlet is near the machine and easily
accessible.
6. Turn on the main switch.
C217
3-6
SM
7. Loading paper as follows:
a. Open the paper feed table
carefully.
b. Press down the feed roller
pressure lever.
c. Place the paper on the
paper feed table.
d. Adjust the paper feed side
plates to match the paper size.
Installation
e. Lift the feed roller pressure
lever.
f. Make sure that the paper
feed side plates contact the
paper lightly.
SM
3-7
C217
8. Set the paper delivery rollers and guides
as follows:
a. Open the paper delivery table.
b. Move the paper delivery end
and side plates to match the
print paper size.
c. Adjust the paper delivery
rollers to match the paper
size.
C217
3-8
SM
9. Install the master roll as follows:
a. Insert both spools into the
new master roll.
b. Open the top cover.
c. Set the master roll.
d. Lift the pressure release
lever to release the feed
roller pressure.
Installation
e. Insert the leading edge of
the master roll under the
pressure roller.
f. Return the pressure release
lever to its original position.
g. Turn on the main switch.
h. Press the master cut button to cut
the leading edge of the master roll.
i. Remove the cut-off portion of the
master roll.
j. Close the top cover.
SM
3-9
C217
10. Install the ink cartridge as follows:
a. Open the ink cover.
b. Press down the release
lever (green tab [A]).
Then pull out the ink
cartridge holder.
c. Open the ink cap and set the
ink cartridge as shown in the
illustration.
d. Slide in the ink cartridge holder.
Then press the set lever (green
tab) until it clicks in position.
e. Close the ink cover.
11. Make test prints as follows:
a. Adjust the original guide to
match the original size.
b. Set the original face down.
c. Input the desired number of
prints with the number keys
and press the Master Making
key.
d. After one sheet of paper is
delivered, press the Print Start
key to make prints at the lowest
print speed until the print image
density stabilizes. Use a test
chart to check for changes in the
image density.
e. Check the copy image after about
one hundred prints.
C217
3-10
SM
30 mm
Installation
18
mm
BRAND STICKER AND NAME PLATE INSTRUCTIONS
This procedure is for the OEM version machine only.
1. Peel off the backing film of the brand sticker (accessory).
2. Adhere the brand sticker to the operation panel as shown.
3. Peel off the backing film of the model name plate (accessory).
4. Adhere the model name plate in the recess on the front cover.
SM
3-11
C217
3. TAPE MARKER INSTALLATION
3.1 ACCESSORY CHECK
Check the quantity and condition of the accessories in the box according to
the following list:
1. Knob Screw ..........................................................................................2
2. Screw M4 x 25 .....................................................................................2
3. Hexagon Nut M4 .................................................................................2
4. Lock washer .........................................................................................1
5. Tape ....................................................................................................1
NOTE: The kit may contain extra parts that are used to install the tape
marker in other model machines.
C217
3-12
SM
Installation
3.2 INSTALLATION
1. Turn off the main switch and unplug the power cord.
2. Install the tape marker on the main body with two knob screws [A]
(accessory) in the two outside holes of the tape marker bracket.
NOTE: 1) Tighten the knob screws with a screwdriver to prevent them from
coming loose.
2) Install the lock washer [B] (accessory) with the lower of the two
knob screws.
SM
3-13
C217
4. Open the tape marker cover
[D]. Then, insert the leading
edge of the tape into the tape
entrance until it stops as shown
in the illustration [E].
NOTE: Be sure that the
tape is installed in
the proper direction.
[A]
If it is not in the correct
direction, the tape marker
will not work correctly.
[B]
5. Turn on the main switch of the
[C]
main body and the tape marker
switch [F].
6. Press the tape cut button [G] to
cut off the leading edge of the
tape.
[E]
[D]
7. Check the tape marker operation
using the Memory/Class modes
of the main body.
[F]
[G]
C217
3-14
SM
SERVICE TABLES
1. SERVICE REMARKS
1.1 SCANNER SECTION
1. Original Registration Sensor
When replacing the upper or lower original registration sensor with a new
one, be sure to adjust the light intensity of the sensor LED.
2. Original Friction Pad
When replacing the original friction pad with a new one, be careful of the
position on the spring plate. (See "1.2 ORIGINAL FRICTION PAD
REMOVAL.")
3. Exposure Glass
When removing and reinstalling the exposure glass, be careful of the setting
direction. (See "1.6 EXPOSURE GLASS REMOVAL.")
4. Exposure Lamp
Service Tables
Do not touch the exposure lamp while it is on.
1.2 MASTER FEED SECTION
1. Thermal Head
When replacing the thermal head with a new one, be sure to adjust the
voltage supplied to the thermal head.
2. Plotter Unit
When removing or installing the plotter unit, be careful not to damage the
harness. (See "3.3 PLOTTER UNIT REMOVAL.")
1.3 PAPER FEED SECTION
1. Friction Pad
When removing and reinstalling the friction pad base, be sure to install it in
the correct direction and position. (See "5.1 PAPER FEED ROLLER AND
FRICTION PAD REMOVAL.")
2. Paper Feed Roller
Do not touch the surface of the roller with oily hands.
SM
4-1
C217
1.4 DRUM AND DRUM DRIVE SECTION
1. Main Motor
When the motor pulley has been removed from the motor and then
reinstalled, be careful of the position of the pulley on the motor shaft. (See
"7.4 MAIN MOTOR REPLACEMENT.")
2. Drum Unit
When removing and reinstalling the drum unit, be sure to engage the drum
drive gears correctly. (See "7.6 DRUM UNIT REMOVAL.")
3. Doctor Roller
Normally the doctor roller gap is not adjusted or changed. It tends to be
difficult to adjust in the field. If the gap becomes narrower, an uneven image
may appear on the prints. If it becomes wider, too much ink will be applied to
the drum screens, resulting in ink leakage from the drum.
4. Drum Master Clamper
1) When removing and reinstalling the drum master clamper, be sure to
position the three springs in the drum master clamper correctly.
2) Do not allow the inside of the clamping plate to become dirty with ink.
3) Do not use alcohol or other solvents to clean the inside of the
clamping plate. Use a cloth damped with water.
For all the above, see "7.8 INK ROLLER UNIT REMOVAL."
5. Ink Roller Unit
Do not disassemble the ink roller unit. Each part between the front and rear
side plates of this unit has been exactly adjusted to keep the doctor and ink
rollers parallel against the drum shaft in the production.
1.5 INK SUPPLY SECTION
1. Ink Pump
When the ink pump has been removed and reinstalled, be sure to adjust the
plunger position.
2. Ink Cartridge Installation
When you set the ink cartridge, firmly slide it in and push the set lever (to
which a green tab is adhered for identification) until it clicks in position. If it is
not set correctly, the ink in the cartridge will not be supplied to the drum.
C217
4-2
SM
Rev. 10/20/93
3. To Disable Ink Detection Circuit
The ink detection circuit can be disabled if the main switch is turned on while
both the Auto Cycle key and the Reset key are pressed. If this mode is
accessed, prints can be made even though the ink detection pin is not in
contact with the ink on the ink roller (see page 2-26 Ink Supply Control).
When the main switch is turned off, this condition is reset to normal
operation.
This function serves to remove the ink inside the drum.
1.6 PAPER DELIVERY SECTION
1) The exit pawl clearance adjustment must be done prior to the drive
timing adjustment. Once this has been done then the drive timing
adjustment must be carried out.
2) Do not disassemble the exit pawl assembly. The clearance between
the exit pawl and drum may change.
3) Never touch the exit pawls during the drum rotating. The exit pawls
will touch the drum surface and damage it.
1.7 ELECTRICAL COMPONENTS
1. Main PCB
When replacing the main PCB with a new one, be sure to perform the
followings:
1) Original registration adjustment
2) Leading edge registration adjustment
3) Vertical magnification adjustment
4) Trailing edge erase margin adjustment
5) Ink detection adjustment
2. Power Supply PCB
1) When replacing the power supply PCB with a new one, be sure to
adjust the voltage supplied to the thermal head.
(Continued on the next page.)
SM
4-3
C217
Service Tables
1. Exit Pawl
Rev. 10/20/93
2) When swinging the power supply PCB out to carry out the exit pawl
drive timing adjustment, drum unit removal, etc., be sure to disconnect
all of the 4 connectors on the PCB. Especially, be sure to disconnect
the connector for ac power supply to the PCB (on the left end of the
PCB). If this is not disconnected, the connector itself and the harness
may be damaged.
3. A/D Conversion PCB
When replacing the A/D conversion PCB with a new one, be sure to adjust
the output of the white level.
4. CCD PCB
When replacing the CCD PCB with a new one, be sure to adjust the output
of white level, scanning line position, scanning start position, focus, and
horizontal magnification.
C217
4-3 A
SM
Rev. 10/20/93
Service Tables
This Page Intentionally Left Blank
SM
4-3 B
C217
2. MAINTENANCE TABLE
The following items should be maintained periodically. There are two sets of
intervals - one based on time and the other based on print count. For
maintenance items with entries in both of them, use whichever comes first.
C: Clean
Time
Interval
Item
R: Replace
Print Counter
6M 1Y 2Y 3Y
Scanner/Optics
Exposure Lamp
C
C
L: Lubricate A: Adjust
300K
600K 1M 1.2M 2M
NOTE
C
C
C
C
C
C
Dry Cloth
Soft Cloth &
C
Water
Soft Cloth
C Dry Cloth
C
C
C
Dry Cloth
Platen Roller
R
R
R
Master Eject Rollers
Drum Master Sensor
Paper Feed
Paper Feed Roller
Friction Pad
Exit Roller
Press Roller
Paper Feed Roller
One-way Clutch
Paper Feed Clutch
Feed Roller and Exit
Roller Bushings
C
C
C
R
C
R
C
R
R
R
C
Original Pick-up Roller
R
Mirror/Reflector
Exposure Glass
Original Registration
Sensor
Master Feed
R
C
R
R
R
R
R
R
R
R
R
C Cloth & Water
Dry Cloth
C Cloth w/Alcohol
R
R
C
C
L
L
L
L
L
L
C
C
C
C
C
C
Motor Oil
(SAE #20)
Grease
(Alvania #2)
C Dry Cloth
Dry Cloth
R
R
L
L
L
Drum Flange Bushing
L
L
L
In/Outside of Drum
Ink Pump Nozzle
Others
Timing Belt Tension
Press Roller Lock Lever
Position
C
C
C
C
C
C
C217
Expected life is
6K masters.
Alcohol
C Dry Cloth
R
Feed Roller Drive Gears
Registration/Exit Sensors
2nd Feed Roller
Drum and Ink Supply
Cloth Screen
Drum Drive Gears and
Cam
C
EM
Grease
(Alvania #2)
Motor Oil
(SAE #20)
Alcohol
Alcohol
A
A
4-4
SM
3. LUBRICATION POINTS
3.1 FEED ROLLER BUSHING
Service Tables
Lubricant: Motor Oil
3.2 EXIT ROLLER BUSHINGS
Lubricant: Motor Oil
SM
4-5
C217
3.3 FEED ROLLER DRIVE GEARS
Lubricant: Grease (Alvania #2)
3.4 DRUM DRIVE GEARS AND CAM
Lubricant: Grease (Alvania #2)
C217
4-6
SM
3.5 DRUM FLANGE BUSHING
Service Tables
Lubricant: Motor Oil
SM
4-7
C217
4. INPUT/OUTPUT CHECK MODE
The electrical components can be checked by this program. The input check
mode can check if the sensors or switches function correctly. The output
check mode can manually activate the electrical devices, such as motors
and solenoids.
4.1 ACCESS PROCEDURE
1. Turn on the main switch while holding down the Print Start, Stop, and
Clear keys at the same time.
2. The memory indicator will display "01" which indicates that the Input
Check mode is selected.
3. To select the Output Check mode, press the Memory/Class key. The
memory indicator will display "00".
4.2 DRUM FREE RUN MODE
1. Select either the Input or Output Check mode.
2. Select the Photo mode by pressing the Image Mode key.
3. Free run starts by pressing the Image Density key. Operation depends
on the image Density selection as follows:
Image Density Selection
Lighter
Normal
Darker
Darkest
Drum Speed
30rpm
Stop
30rpm
70/100/130rpm (see Note)
NOTE: The drum speed can be changed by the Speed key.
C217
4-8
SM
4.3 INPUT CHECK MODE
By entering a number listed below after accessing the Input check mode, the
input level of each electrical device can be checked. Depending on the
selected electrical device’s condition, the beeper will sound and the machine
status indicators will light when the selected device is physically activated.
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
SM
Device
Feed Start Timing Sensor
Feed Jam Timing Sensor
Exit Jam Timing Sensor
Master Eject Position
Sensor
Drum Master Sensor
Scanner Unit Open Switch
Master End Sensor
Master Cut Switch
Left Cutter Switch
Right Cutter Switch
Paper End Sensor
Registration Sensor
Exit Sensor
Master Clamper Switch
(Open)
Master Clamper Switch
(Close)
Original Set Sensor
Original Registration
Sensor
ADF Open Switch
Master Eject Sensor
Pressure Plate H.P. Sensor
Full Master Sensor
DIP SW 103-1
DIP SW 103-2
DIP SW 103-3
DIP SW 103-4
DIP SW 103-5
DIP SW 103-6
DIP SW 103-7
DIP SW 103-8
Conditions when the beeper sounds
Sensor is actuated
Sensor is actuated
Sensor is actuated
Sensor is actuated
Sensor detects master on the drum
Scanner unit is open
Sensor detects no master
Switch is pressed
Switch is actuated
Switch is actuated
Sensor detects no paper
Sensor detects paper
Sensor detects paper
Service Tables
No.
1
2
3
Clamper is open
Clamper is closed
Sensor detects original
Sensor detects original
ADF is closed
Sensor is actuated
Sensor is actuated
Sensor is actuated
Switch is on
Switch is on
Switch is on
Switch is on
Switch is on
Switch is on
Switch is on
Switch is on
4-9
C217
4.4 OUTPUT CHECK MODE
You can turn on each electrical device listed below individually. The
procedure is as follows:
1. Select the output check mode.
2. Enter the number of the device which you would like to turn on.
3. Press the Print key to turn on the device.
4. To turn off the device, press the Clear key.
NOTE: Some of the devices are turned on only while the Print key is
pressed (Marked with "*").
CAUTION: 1. Do not turn the drum manually nor by using the output
mode when the clamper is opened by the output mode.
2. Do not open the clamper when the drum is not at the
master feed or eject positions. Use the drum stop
functions (No. 15 or 16) before opening the clamper.
No.
Device/Function
1 Thermal Head
2
3
4
5
Note
Power is applied to the thermal head for 30
seconds after the Print key is pressed. While the
power is applied to the thermal head, the beeper
sounds.
Paper Feed Clutch *
Pressure Release Solenoid *
Master Eject Motor *
Ink Supply Motor *
6 Master Cutter Motor
7 Print Counter
8 Master Counter
The motor stops when one of the cutter position
sensors is activated.
The counter is increased by one for each press of
the Print key.
The counter is increased by one for each press of
the Print key.
9 Exposure Lamp
10 Master Clamper Motor (Open) *
11 Master Clamper Motor (Close) *
12 Master Feed Motor
13 Original Feed Motor
14 Shading Distortion Correction
15 Drum Stop (Master Exit)
16 Drum Stop (Master Feed)
17
C217
Pressure Plate Motor *
(To Home Position)
The motor stops when the master clamper switch
detects the clamper open condition.
The motor stops when the master clamper switch
detects the clamper closed condition.
The shading distortion memory is rewritten.
The drum turns and stops at the master eject
position automatically.
The drum turns and stops at the master feed
position automatically.
The motor turns to move the pressure plate
towards to the home position. The motor stops
when the pressure plate H.P. sensor is actuated.
4-10
SM
Rev. 10/20/93
No.
18
Device/Function
Pressure Plate Motor *
(To Pressed Position)
19 Air Knife Motor *
20 Operation Panel Indicators
Note
The motor turns to move the pressure plate
towards to the pressed position. The motor stops
when the full master sensor is actuated.
Turns on all the indicators on the operation panel.
4.5 TO DISABLE INK DETECTION CIRCUIT
The ink detection circuit can be disabled if the main switch is turned on while
both the Auto Cycle key and the Reset key are pressed. If this mode is
accessed, prints can be made even though the ink detection pin is not in
contact with the ink on the ink roller (see page 2-26 Ink Supply Control).
When the main switch is turned off, this condition is reset to normal
operation.
Service Tables
This function serves to remove the ink inside the drum.
SM
4-11
C217
5. THERMAL HEAD TEST
This function is used to determine which printer component is causing an
image problem on the master.
In this mode, the background pattern that is printed covers the entire sheet
of paper.
Procedure
1. Turn off the main switch and unplug the power cord.
2. Remove the front cover and turn of the DIP switch 101-1.
3. Place paper on the paper table.
4. Plug the power cord and turn on the main switch.
5. Set an original in the ADF. (Any original is acceptable.)
6. Press the Master Making key.
7. Make prints and check the image.
Assessment
Pattern image is normal .................. Part A component is defective.
Pattern image is abnormal............... Part B component is defective.
A
B
Exposure Lamp
CCD
PCB
C217
A/D
Conversion
PCB
Main
PCB
4-12
Thermal
Head
SM
6. SERVICE TABLES
6.1 TEST POINT TABLE
Main PCB
No
TP101
TP102
TP103
TP104
TP105
TP106
TP107
TP108
TP109
TP110
TP111
Usage
–12 V
Ink Level (Standard Pulse)
Ink Level (Detection Pulse)
GND–b
+12 V
+24 V
4MHZ Clock
+38 V
+5 V
GND–a
Original Registration Sensor
A/D Conversion PCB
Usage
OS Signal (CCD Output)
VS Signal (Inverted and Amplified CCD Output)
GND
Scan Line Trigger
Service Tables
No
TP201
TP202
TP203
TP204
6.2 VARIABLE RESISTOR TABLE
Main PCB
No
VR101
VR102
Usage
Ink Detection Adjustment
Original Registration Sensor Adjustment
A/D Conversion PCB
No
VR201
Usage
White Level Adjustment
Power Supply PCB
No
VR301
VR401
SM
Usage
Factory Use Only (+5V Adjustment)
Thermal Head Voltage Adjustment
4-13
C217
6.3 DIP SW TABLE
Main PCB
DPS 101
1
2
3
4
5
6
7
8
OFF
Outputs Test Pattern
Dither Matrix (Screw Pattern)
Dither Matrix (Bayer Pattern)
Dither Matrix (8 x 8 Pattern)
Dither Matrix (6 x 6 Pattern)
Normal
Normal
Production Use Only
ON
Dither Matrix (4 x 4 Pattern)
Edge Emphasis in Photo Mode
Enable Data Noise Filter
Must be ON
Factory Setting
DPS 101
1
2
3
4
DPS 101
5
6
7
8
ON
ON
ON
ON
ON
OFF
OFF
ON
If two of the DIP-SW 101-2~6 are on, the image will not be produced.
DPS 102
OFF
1
Thermal Head Power Off
2
OFF
OFF
OFF
OFF
ON
ON
ON
ON
C217
DPS 102
3
OFF
OFF
ON
ON
ON
ON
OFF
OFF
4
OFF
ON
OFF
ON
ON
OFF
ON
OFF
ON
Normal
Leading Edge Registration Adjustment
+2.4 mm
+1.6
+0.8
0 (Standard)
–0.8
–1.6
–2.4
–3.2
4-14
SM
DPS 103
2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
DPS103
4
5
OFF
OFF
OFF
ON
ON
OFF
ON
ON
DPS 103
6
Normal
7
Not Used
8
Not Used
3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Vertical Magnification
+1.75%
+1.25
+0.75
0 (Standard)
–0.75
–1.25
–1.75
–2.25
Description
Trailing Edge Erase Margin Adjustment
+1mm
+2mm
+3mm
–1mm
OFF
ON
Enable Key Counter Operation
Service Tables
1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
6.4 LED TABLE
Main PCB
LED #
101
102
OFF
Less Ink Condition
–
ON
Sufficient Ink Condition
Paper Feed Condition
6.5 FUSE TABLE
Main PCB
FUSE #
SM
101
Rated
Current
630 mA
102
4A
Protect
Voltage
Device
24 V
Master Cutter, Master Clamper, and
Pressure Plate Motors, Ink Motor
38 V
Air Knife Motor
4-15
C217
7. SERVICE CALL INDICATIONS TABLE
No.
Description/Definition
E-00 Clamper Motor Failure
The main PCB cannot detect the master
clamper switch signals (Open/Close)
within 1.2 seconds after the clamper
motor is turned on.
E-01 Cutter Unit Failure
Neither the left nor right cutter switch
turns on within 2 seconds after the
cutter motor is turned on.
E-04 Thermal Head Overheat
Temperature of the thermal head is
greater than 48°C when the Master
Making key is pressed.
E-06 Main Motor Failure
The main PCB cannot detect the feed
start timing sensor signal within 2
seconds after the main motor is turned
on.
E-07 ROM Data Error
The CPU detects errors in the ROM
data when the main switch is turned on.
E-08 Power Supply Unit Overheat
The main PCB receives the overheat
signal from the power supply unit when
the Master Making key is pressed.
E-09 Thermal Head Thermistor Open
The thermistor output voltage
(CN104-13) is over 2.83 volt.
E-10 Thermal Head Drive Failure
The CPU detects abnormal condition in
the thermal head drive circuit.
E-12 Pressure Plate Motor Failure
The pressure plate home position
sensor signal is not detected within 3
seconds after the pressure plate motor
is turned on.
C217
4-16
*
*
*
*
*
*
*
Points to Check
Mechanical interference
with the clamper drive
Master clamper sensor
Clamper motor
Clamper drive
mechanism
Cutter switches
Cutter motor
Cutter drive mechanism
* Thermal head
* Thermistor of the thermal
head (short circuit)
*
*
*
*
Main motor
Power to the main motor
Feed start timing sensor
Mechanical interference
with the drum drive
* ROM on the main PCB
* CPU on the main PCB
* Power supply unit
* Thermal head thermistor
* Thermal head connector
* Thermal head
* Main PCB
* Thermal head connector
and harness
* Mechanical interference
with the pressure plate
drive
* Pressure plate motor
* Pressure plate H.P.
sensor
SM
REPLACEMENT
AND
ADJUSTMENT
1. SCANNER SECTION
1.1 ORIGINAL REGISTRATION SENSOR ADJUSTMENT
PURPOSE: To ensure correct sensor detection for originals, obtain the
correct light intensity of the sensor (light emitter side).
Replacement
and
Adjustment
ADJUSTMENT STANDARD:
3.4 volts or more when 80 g/m2 white paper is placed and the
exposure lamp turns on. (It should be between 0.25 and 0.50
volts when there is no paper and light.)
CAUTION: This adjustment is required when the upper original
registration sensor (light receiver), lower original
registration sensor (light emitter), or the main PCB has
been replaced.
1. Turn off the main switch and disconnect the power plug.
2. Remove the front cover (4 screws).
3. Connect the power plug, and turn on the main switch to access the
output mode. (Turn on the main switch while holding down the Print
Start, Stop, and Clear keys together. Then, press the Memory/Class key
once to indicate "00" in the memory display.)
4. Measure the sensor (light receiver) output voltage between TP104
(grounding) and CN110-5 on the main PCB. It should be between 0.25
and 0.50 volts. (0.375 volts is the target.)
5. If it is not correct, adjust the sensor (light emitter) output by turning
VR102 on the main PCB.
SM
5-1
C217
6. Open the ADF unit and place a white sheet of 80 g/m2 paper on the
exposure glass. Then close the ADF unit.
7. Select the exposure lamp on mode. (Enter "9" with the number key.)
8. Press the Print Start key to turn on the exposure lamp. Then repeat step
4. The sensor output should be 3.4 volts or more.
9. If it is not correct, repeat steps 4 to 8.
CAUTION: The sensor (light receiver) output level varies depending
on the paper type placed on the exposure glass. If a white
sheet of 64 g/m2 paper is used, the sensor output should
be 3.0 volts or more.
C217
5-2
SM
1.2 ORIGINAL FRICTION PAD REMOVAL
[A]
[C]
[B]
1. Turn off the main switch and disconnect the power plug.
2. Open the ADF and remove the white plate [A] (2 screws).
NOTE: Using a minus screwdriver lift the rear (non-operation side) of
the guide plate, which is hooked under the rear side frame, as
shown [C], but not in the front side (operation side).
When installing the guide plate, set the hook on the operation
side first.
SM
5-3
C217
Replacement
and
Adjustment
3. Remove the upper original guide plate [B] (1 screw).
No space allowed
[B]
[A]
4. Remove the spring plate [A] (2 screws). Peel off the original friction pad
from the spring plate and replace it if necessary.
CAUTION: 1) When you stick the original friction pad on the spring
plate, make sure that the edge of the hole in the pad is
flush with the bent portion of the spring plate as shown
[B].
2) Do not damage or bend the spring plate. Original
misfeeds may occur if it is deformed.
C217
5-4
SM
1.3 EXPOSURE LAMP REMOVAL
[B]
[C]
[A]
Replacement
and
Adjustment
1. Turn off the main switch and disconnect the power plug.
2. Open the scanner unit.
3. Remove the scanner cover [A] (4 screws).
4. Remove the ADF unit [B] (1 E-ring). You do not have to remove it
completely by disconnecting the connector from the ADF.
5. Remove the lower original guide plate [C] (3 screws).
SM
5-5
C217
[B]
[A]
[C]
[E]
[D]
6. Remove the reflector [A] (1 screw).
7. Remove the bracket [B] with the original registration sensor and the
bracket [C] holding the original pick-up roller shaft (1 screw each).
8. Disconnect the connectors [D] to the lamp control PCB. Then, take off
the two harness clamps from the base plate.
9. Lift up the front end of the lamp (operation side). Then, twist the other
end slightly and remove it using a minus screw driver as shown [E].
NOTE: When installing the lamp, insert the non-operation side first.
C217
5-6
SM
1.4 ORIGINAL SET AND REGISTRATION SENSOR REMOVAL
[D]
[B]
[C]
[A]
1. Follow steps 1 to 5 in "1.3 EXPOSURE LAMP REMOVAL" to remove
the lower original guide plate.
2. Remove the lower original registration sensor [A] (light emitter) (1 screw).
LOWER ORIGINAL REGISTRATION AND ORIGINAL SET SENSORS:
1. Follow steps 1 to 3 in "1.2 ORIGINAL FRICTION PAD REMOVAL" to
remove the upper original guide plate.
2. Remove the ADF base [B] (4 screws).
3. Remove the upper original registration sensor [C] (light receiver)
(1 screw) and original set sensor [D].
SM
5-7
C217
Replacement
and
Adjustment
UPPER ORIGINAL REGISTRATION SENSOR:
1.5 ORIGINAL PICK-UP AND FEED ROLLER REMOVAL
[B]
[C]
[D]
[A]
1. Follow steps 1 to 5 in "1.3 EXPOSURE LAMP REMOVAL" to remove
the lower original guide plate.
2. Remove the bracket [A] with the original registration sensor (1 screw).
3. Remove the original pick-up roller [B] and original feed roller [C] (2
E-rings, 2 bushings, and 1 gear each).
CAUTION: Note that the gear on the pick-up roller shaft has a built in
one-way clutch. Make sure that the blue flange of the gear
[D] faces the outside.
C217
5-8
SM
1.6 EXPOSURE GLASS REMOVAL
SM
5-9
Replacement
and
Adjustment
When the exposure glass is installed, set it as shown.
C217
2. COPY IMAGE ADJUSTMENT
2.1 LEADING EDGE REGISTRATION ADJUSTMENT
PURPOSE: To meet the image position in the vertical direction on the print
paper with that on the original.
ADJUSTMENT STANDARD:
0±2.0 mm
CAUTION: This adjustment is required when the main PCB has been
replaced.
1. Turn on the main switch, and make a print.
NOTE: The image position on a trial print, which is automatically made
after making a master, tends to vary. Do not use the trial print to
check the image registration.
2. Measure the difference between the leading edge registration of the
original and print.
3. If the value does not meet the standard, then adjust it. The leading edge
registration changes depending on the positions of DPS102-2, -3, and -4
(DIP switches) on the main PCB as follows:
DPS102–2
OFF
OFF
OFF
OFF
ON
ON
ON
ON
–3
OFF
OFF
ON
ON
ON
ON
OFF
OFF
–4
OFF
ON
OFF
ON
ON
OFF
ON
OFF
Difference [mm]
+2.4
+1.6
+0.8
0 (Standard)
–0.8
–1.6
–2.4
–3.2
NOTE: The initial DPS settings differ from one machine to another as
they are changed during production.
4. After adjustment, make more than 10 continuous copies to check the
variation.
C217
5-10
SM
2.2 VERTICAL MAGNIFICATION ADJUSTMENT
ADJUSTMENT STANDARD:
Within 100 ± 0.8%
CAUTION: This adjustment is required when the main PCB has been
replaced.
NOTE: The horizontal magnification depends on the position of the CCD
PCB. (The standard is within 0.5%.)
1. Turn on the main switch, and make a print.
2. Compare the image on the print with that on the original.
3. Make sure that the difference of the vertical magnification is within the
standard (0.8% or less).
NOTE: If an original has a line of 100 mm in the exact vertical direction,
the line on the print should be between 99.5 to 100.5 mm.
4. If it is out of the standard, then adjust it. The vertical magnification
changes depending on the positions of DPS103-1, -2, and -3 (DIP
switches) on the main PCB as follows:
–2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
–3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Difference [%]
+1.75
+1.25
+0.75
0 (Standard)
–0.75
–1.25
–1.75
–2.25
Replacement
and
Adjustment
DPS103–1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
NOTE: The initial DPS settings differ from one machine to another as
they are adjusted during production.
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5-11
C217
2.3 TRAILING EDGE ERASE MARGIN ADJUSTMENT
PURPOSE: To minimize the dirtiness of ink on the press roller.
ADJUSTMENT STANDARD:
1.0 to 2.0 mm
CAUTION: This adjustment is required when the main PCB has been
replaced.
1. Turn on the main switch, and make a print using an original that has an
image in the trailing part.
2. Measure the trailing edge erase margin.
NOTE: If the trailing edge of the original is not sited on the print, shift
the image in the forward direction by pressing the Image
Shifting key and make another print.
3. Make sure that the value is within the standard (1.0 to 2.0 mm).
4. If it is out of the standard, then adjust it. The trailing edge erase margin
changes depending on the positions of DPS103-4, and -5 (DIP switches)
on the main PCB as follows:
DPS103–4
OFF
OFF
ON
ON
–5
OFF
ON
OFF
ON
Difference [mm]
+1
+2
+3
–1
NOTE: The initial DPS settings differ from one machine to another as
they are adjusted during production.
C217
5-12
SM
3. MASTER FEED SECTION
3.1 THERMAL HEAD VOLTAGE ADJUSTMENT
PURPOSE: To maintain quality when making masters and to prevent the
thermal head from being damaged.
Refer to the voltage value (X) described on
ADJUSTMENT STANDARD:
the thermal head. The value varies from one thermal head to
another. The adjustment voltage should be between "X - 0.05"
and "X + 0.05."
CAUTION: This adjustment is always required when the thermal head
or power supply PCB has been replaced.
1. Turn off the main switch and disconnect the power plug.
2. Remove the front cover (4 screws).
3. Disconnect CN304 [A] on the power supply PCB.
4. Read the voltage value described on the decal on the thermal head.
5. Connect the power plug, and turn on the main switch to access the
output mode. (Turn on the main switch while holding down the Print
Start, Stop, and Clear keys together. Then, press the Memory/Class key
once to indicate "00" in the memory display.)
6. Select the thermal head power supply mode. (Enter "1" with the number
key.)
SM
5-13
C217
Replacement
and
Adjustment
[A]
[B]
7. Press the Print Start key. The power to the thermal head is applied for
about 30 seconds. Press it again if you cannot finish the adjustment.
NOTE: A beeper sounds while supplying the power.
8. Measure the voltage between output terminal and grounding terminal of
CN304.
CAUTION: Use the outside terminals in the connector as shown [B]
to measure the voltage. If the output terminal and
grounding touch each other, the PCB will become
damaged.
9. Turn VR401 so that the value becomes within 0.05 volts from the value
that you obtained in step 4.
CAUTION: Never turn VR401 clockwise rapidly while the connector is
connected. The thermal head will be damaged if too much
voltage is supplied suddenly.
NOTE: The output and grounding terminals are positioned in the
connector as follows:
CN304
Output
C217
5-14
Grounding
SM
Rev. 6/28/96
3.2 THERMAL HEAD REMOVAL
For the VT1730
[C]
[A]
Replacement
and
Adjustment
[B]
[B]
1. Turn "OFF" the main switch and disconnect the power plug.
2. Open the scanner unit.
3. Lift the platen roller release lever [A] up until it locks. Theand remove the
platen roller [C].
4. Remove the thermal head cover [C] (2 screws).
5. Disconnect the connector from the thermal head.
SM
5-15
C217
Rev. 6/28/96
[C]
[A]
[B]
6. Unhook the lock pawl [A] on the front side of the thermal head (operation
side) using a small slotted screw driver. While doing this, remove the
thermal head.
CAUTION: Be careful not to hit the thermal head surface against the
plate above it.
NOTE: There are two projections on the thermal head base, and they meet
the holes behind the thermal head. The projection on the front [B]
(operation side) securely meets the hole, but the other [C] is loose.
Therefore, remove the front side first.
When installing, make sure to set the front side first.
IMPORTANT: If the thermal head has been replaced with a new one, the
input voltage must be readjusted. Follow the "THERMAL HEAD
VOLTAGE ADJUSTMENT" section in the service manual.
C217
5-16
SM
Rev. 6/28/96
For the VT1800
[B]
[A]
[C]
1. Turn off the main switch and disconnect the power plug.
2. Open the scanner unit.
3. Remove the platen roller cover [A].
4. Lift the platen roller release lever [B] up until it locks. Then, unhook the
lock levers and remove the platen roller [C].
[E]
Replacement
and
Adjustment
[D]
[F]
5. Remove the thermal head cover [D], then remove the release lever [E].
6. Remove the two springs [F].
IMPORTANT: If the thermal head has been replaced with a new one, the
input voltage must be readjusted. Follow the "THERMAL HEAD VOLTAGE
ADJUSTMENT" section in the service manual.
SM
5-16 A
C217
Rev. 6/28/96
For VT1800s manufactured before
Serial Number C341604XXXX
For VT1800s manufactured after
Serial Number C341604XXXX
[H]
[H]
[G]
7. Remove the guide plate [G].
8. Remove the cutter unit [H].
[K]
[L]
(B)
7. Remove the cutter unit [H].
8. Remove the grounding screw [I]
(below)
[M]
(A)
[K]
[I]
[M]
(B)
(A)
[J]
9. Remove the grounding screw [I].
10. Disconnect the connectors [J]
from the thermal head.
11. While spreading both side
frames outward, unhook the
pins on both sides of the
thermal head bracket [K] and
remove the bracket (with the
thermal head).
[L]
[J]
9. Disconnect the connectors [J]
from the thermal head.
10. Unhook the pins on
non-operation sides of the
thermal head bracket [K] through
the cutout [L] and remove the
bracket (with the thermal head).
NOTE: The cutout [L] has been
newly added (April ’96).
11. Remove the two screws and
remove the thermal head [M].
12. Remove the two screws [M]
and remove the thermal head.
C217
5-16 B
SM
3.3 PLOTTER UNIT REMOVAL
[B]
[A]
1. Turn off the main switch and disconnect the power plug.
Replacement
and
Adjustment
2. Remove the front cover [A] (4 screws), then disconnect the connectors
[B] of the harnesses from the plotter unit.
SM
5-17
C217
[D]
[C]
[F]
[E]
[F]
3. Open the scanner unit.
4. Remove the upper right cover [C] (2 screws), and remove the 2 screws
[D] securing the plotter unit.
5. While pulling the harnesses [E] from the plotter unit, remove the unit.
CAUTION: Be careful not to damage the harness [F] by the corners of
the plotter unit when removing the unit. Also, be careful
not to pinch the harness when reinstalling the unit.
C217
5-18
SM
4. MASTER EJECT SECTION
4.1 MASTER EJECT UNIT REMOVAL
1. Turn off the main switch and disconnect the power plug.
2. Remove the front cover (4 screws).
3. Swing out the power supply PCB [A] (2 screws and 4 connectors) and
disconnect the 4 connectors to the master eject unit (3 from the main
harness and 1 from the safety switch).
SM
5-19
C217
Replacement
and
Adjustment
[A]
[A]
4. Remove the master eject box.
5. Open the scanner unit, and remove the two screws [A] fixing the unit.
6. Remove the master eject unit while pulling the harness out of the cutout
of the front frame.
CAUTION: Do not pinch the harnesses when reinstalling the master
eject unit.
C217
5-20
SM
5. PAPER FEED SECTION
5.1 PAPER FEED ROLLER AND FRICTION PAD REMOVAL
[B]
[D]
[C]
[A]
[E]
1. Turn off the main switch and disconnect the power plug.
2. Lower the paper table, and remove the paper feed roller [A] (1 snap ring).
CAUTION: 1) Do not lose the small spacer [B] inside the paper feed
roller.
2) Install the paper feed roller in the proper direction due
to the one-way built-in clutch. The smooth flange [C]
faces outside.
3. Remove the friction pad base [D]. Peel off the friction pad and replace it if
necessary.
CAUTION: 1) Install the friction pad base in the proper direction as
shown. Otherwise, paper misfeeds will occur.
2) Be sure that the hole [E] in the friction pad base and
projection [F] in the bottom hold the friction pressure
spring properly. Otherwise, paper misfeeds will occur.
SM
5-21
C217
Replacement
and
Adjustment
[F]
6. PRINTING SECTION
6.1 PRESS ROLLER LOCK LEVER ADJUSTMENT
PURPOSE: To maintain the correct clearance between the press roller arms
and press roller lock levers. This ensures that the press roller is
correctly released and pressed against the drum when the press
roller release solenoid is energized.
ADJUSTMENT STANDARD:
Between 1.0 and 1.2 mm
[A]
1. Turn off the main switch and disconnect the power plug.
2. Remove the front cover (4 screws) and rear cover (6 screws).
3. Open the scanner unit, and turn the drum manually until the drum master
clamper on the drum moves into the bottom most position. (The top of
the cams on the drum flanges meet with the cam followers on both ends
of the press roller.)
NOTE: To find out the correct position of the drum for the adjustment,
refer to the rear end of the drum shaft. The round part of the
shaft must face to the bottom as shown [A].
C217
5-22
SM
[B]
[A]
[D]
[C]
[E]
5. If it is not correct, adjust the position of the press roller lock lever after
loosening the two screws [D].
6. Swing out the power supply PCB (2 screws and 4 connectors).
7. Repeat steps 5 and 6 for the front side.
8. After finishing the adjustment, make sure that the press roller lock levers
are released from the press roller arms by pressing the plunger of the
press roller release solenoid [E] manually.
SM
5-23
C217
Replacement
and
Adjustment
4. Using a thickness gauge, measure the clearance [A] between the press
roller arm [B] and press roller lock lever [C] (rear side). It should be
between 1.0 and 1.2 mm.
6.2 PRESS ROLLER REMOVAL
[C]
[A]
[C]
[B]
1. Turn off the main switch and disconnect the power plug.
2. Remove the drum unit. (Refer to "7.6 DRUM UNIT REMOVAL.")
3. Release the press roller lock lever [A].
4. Slightly slide the press roller [B] toward the rear and remove it.
CAUTION: Take caution to avoid possible injury. If the printing
pressure springs [C], which pull the press roller up, are
not removed, the press roller may suddenly move by
accident when the lock levers are unhooked.
C217
5-24
SM
7. DRUM, DRUM DRIVE, AND INK SUPPLY
SECTION
7.1 DRIVE BELT TENSION ADJUSTMENT
PURPOSE: To ensure that the main motor rotation is correctly transmitted to
the drum and each paper feed roller.
ADJUSTMENT STANDARD:
Between 2.8 and 3.0 mm deflection at 570-gram load.
[A]
[B]
Replacement
and
Adjustment
[C]
1. Turn off the main switch and disconnect the power plug.
2. Remove the rear cover (5 screws).
3. Using a tension gauge, apply a 570-gram load to the center of the drive
belt [A]. Make sure that the belt deflects between 2.8 and 3.0 mm [B].
4. If it dose not deflect within this amount, adjust the position of the belt
tightened [C] after loosening the screws.
NOTE: The 2nd feed motor bracket helps to maintain the drive belt
tension. Do not remove the motor bracket when the drive belt
tension is adjusted.
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5-25
C217
7.2 DOCTOR ROLLER GAP ADJUSTMENT
PURPOSE: To control the ink thickness around the ink roller.
ADJUSTMENT STANDARD:
0.08 (±0.01) mm
CAUTION: Normally the doctor roller gap is not adjusted or changed.
It tends to be difficult to change in the field. If the gap
becomes narrower, an uneven image may appear on the
prints. If it becomes wider, too much ink will be applied to
the drum screens, resulting in ink leakage from the drum.
1. Remove the ink cartridge and make prints until the ink end indicator
lights in order to remove ink from inside the drum.
2. Turn off the main switch and disconnect the power plug.
3. Remove the drum unit, then remove the ink roller unit. (Refer to "7.8 INK
ROLLER UNIT REMOVAL.")
4. Wipe off the ink around the ink roller and doctor roller.
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5-26
SM
[C]
[B]
[A]
20 mm
20 mm
NOTE: 1) The gap should be checked at both ends of the doctor
roller. Insert a gap gauge approximately 20 mm from the front
or rear end of the roller, then repeat for the other side.
2) While the gap gauge is inserted, hold the doctor and ink
rollers with your fingers in order to stop the rollers from
rotating.
6. If the gap is out of the standard, loosen the screw [B] and adjust the gap
by turning the eccentric cam bushing [C] for the front and rear each.
NOTE: For the gap adjustment, insert a 0.08 mm gap gauge in between
the rollers. Then, turn the eccentric cam bushing until the doctor
roller lightly touches the gap gauge. Repeat this procedure twice
each for the front and rear of the rollers. Finally repeat step 5 to
check the gap.
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5-27
C217
Replacement
and
Adjustment
5. Make sure that a 0.08 mm gap gauge goes through the gap [A] between
the ink and doctor rollers, and that a 0.09 mm gap gauge dose not.
7.3 INK DETECTION ADJUSTMENT
PURPOSE: To ensure that the ink detection circuit detects a no ink condition.
ADJUSTMENT STANDARD:
See the below illustration.
CH1
(Standard Signal)
4 +0.5
0 µsec
CH2
(Detection Signal)
CAUTION: This adjustment is required when the main PCB has been
replaced.
1. Remove the ink cartridge and make prints until the ink end indicator
lights in order to remove ink inside from the drum.
2. Turn off the main switch and disconnect the power plug.
3. Remove the front cover (4 screws).
4. Connect CH1 probe of an oscilloscope to TP102, CH2 probe to TP103,
and grounding leads of both probes to TP101 (–12 volts). Select the 5
microsecond range on the oscilloscope.
NOTE: The test pins (TP’s) are located on the upper left corner of the
main PCB.
5. Connect the power plug and turn on the main switch.
6. Make sure that the waveform is as shown in the illustration while the ink
end indicator lights.
NOTE: This adjustment should be done under normal room
temperature (approximately 20°C). The period of the waveform
for the detection signal varies inversely with temperature. (If the
temperature becomes higher, the period is reduced, and vice
versa.)
7. If it is not correct, adjust the ON timing of the detection signal by turning
VR101 beside the test pins.
NOTE: If the standard signal is delayed from the detection signal, the
machine cannot detect the no ink condition. In such case,
LED101 on the main PCB lights to warn of this.
C217
5-28
SM
7.4 MAIN MOTOR REPLACEMENT
Rev. 10/20/93
37.8±0.1 mm
Replacement
and
Adjustment
When the pulley is installed onto the main motor shaft, refer to the above
illustration for the position of the pulley.
SM
5-29
C217
Rev. 10/20/93
7.5 INK PUMP PLUNGER POSITION ADJUSTMENT
PURPOSE: To ensure the smooth operation of the ink pump plunger by
properly positioning its bearing.
[A]
[B]
[D]
[C]
[E]
1. Turn off the main switch and disconnect the power plug.
2. Remove the rear cover (6 screws), and then remove the ink supply motor
[A] (2 screws).
3. Remove the E-ring [B] to free the plunger from the pump drive slider [C].
4. Loosen the two screws securing the bearing [D]. (Do not remove the
bearing.)
5. By turning the gear [E] manually, move the plunger until it reaches the
bottom.
6. While holding the bearing [D] with your fingers, re-tighten the two screws.
7. Reinstall the E-ring [B].
C217
5-30
SM
7.6 DRUM UNIT REMOVAL
[A]
[E]
[B]
[C]
1. Remove the ink from inside the drum by disabling the ink detection
circuit. The ink detection circuit can be disabled if the main switch is
turned on while both the Auto Cycle key and the Reset key are pressed.
If this mode is accessed, prints can be made even though the ink
detection pin is not in contact with the ink on the ink roller (see page 2-26
Ink Supply Control). When the main switch is turned off, this condition is
reset to normal operation.
2. Turn off the main switch and disconnect the power plug.
3. Remove the front cover (4 screws) and rear cover (6 screws).
4. Open the scanner unit, and turn the drum manually until the drum master
clamper [A] on the drum moves into the top most position.
NOTE: To find out the correct position of the drum for the above, refer
to the rear end of the drum shaft. When the drum master
clamper is positioned exactly at the top, the round part of the
shaft faces the long hole as shown [B]. (The rib [C] of the drum
drive pulley will meet the long hole [D].)
(Refer to page 5-32 for drum caution.)
SM
5-31
C217
Replacement
and
Adjustment
[D]
CAUTION: When reinstalling the drum unit, install it so that the two
holes [E] are parallel with the top edge of the front frame.
They should be facing exactly up. The drum drive gear at
the drum unit side must be engaged at the correct
position with the other at the main body side. (If the gears
do not meet each other correctly, the upper 2nd feed roller
will not be driven properly and paper misfeed will occur.
This is because the upper 2nd feed roller moves up and
down by the cam mounted on the drum drive gear.)
[FRONT VIEW]
[C]
[B]
[A]
[D]
5. Swing out the power supply PCB (2 screws and 4 connectors). Remove
the feed start timing sensor [A] and feed jam timing sensor [B] (1 screw
and connector each).
6. Remove the front printing pressure spring.
7. Disconnect the connector [C] from the main PCB.
8. Remove the front drum shaft fixing plate [D] (2 screws).
C217
5-32
SM
[REAR VIEW]
[A]
[C]
[B]
CAUTION: 1) Securely hold the drum unit with your hand when you
remove the front and rear drum shaft fixing plates.
Otherwise, the drum drive gears may be
disengaged and the drum will accidentally turn.
2) When installing the front and rear drum shaft fixing
plates, install the front first to obtain the correct
position of the drum shaft. Place the projection on the
front drum shaft fixing plate in the hole within the
frame
before tightening the screws.
9. Remove the rear drum shaft fixing plate [B].
10. Pull out the ink supply nozzle [C].
SM
5-33
C217
Replacement
and
Adjustment
8. From the rear of the machine, remove the rear printing pressure spring
[A].
11. While lifting the front side of the drum up, remove the drum unit as
shown.
CAUTION: 1) Do not loosen the spacer installed on the rear of the
drum shaft.
2) Do not touch the front drum flange against the sensors
to avoid any damage.
3) Do not deform the sensor actuator that is mounted on
the edge of the front drum flange.
4) Do not scratch the drum surface.
C217
5-34
SM
7.7 DRUM SCREEN REMOVAL
[B]
[A]
Replacement
and
Adjustment
[C]
1. Turn off the main switch and disconnect the power plug.
2. Open the scanner unit.
3. Remove the two screws [A] securing the rear screen holder.
4. While turning the drum manually, pull out the drum screen as shown.
CAUTION: 1) The mylar strip [B] is inserted under the mylar strip on
the drum side. Unhook the mylar strip in order not to
damage it before pulling out the drum screen.
2) When reinstalling the drum screen, do not forget to set
the mylar strip as it was. (The two strips of mylar are
to prevent ink from leaking from the trailing edge of the
master that wraps around the drum.)
5. Remove the front screen holder [C] (2 screws), then remove the drum
screen.
SM
5-35
C217
7.8 INK ROLLER UNIT REMOVAL
[C]
[A]
[B]
CAUTION: Never disassemble the ink roller unit. Each part between
the front and rear side plates of this unit has been exactly
adjusted to keep the doctor and ink rollers parallel against
the drum shaft in the production.
1. Turn off the main switch and disconnect the power plug.
2. Remove the drum screen. (Refer to "7.7 DRUM SCREEN REMOVAL.")
3. Remove the drum unit. (Refer to "7.6 DRUM UNIT REMOVAL.")
4. Remove the clamper open lever [A], then remove the drum master
clamper [B] while opening the clamping plate [C].
CAUTION: 1) Position the springs (two on the front and one on the
rear) as shown when reinstalling the drum master
clamper.
2) Do not allow the inside of the clamping plate [C] to
become dirty with ink. If it is dirty with ink, the master
may slip off and the image position on the prints will
move toward the trailing edge of the print during a
printing run.
3) Use a cloth damped with water to clean the inside of the
clamping plate [C]. Never use alcohol or other solvents.
The clamping force by magnet may be weakened.
C217
5-36
SM
[B]
[A]
[B]
Replacement
and
Adjustment
[C]
5. Peel off the tape [A], and remove the metal screen (12 screws).
CAUTION: 1) The length of the 4 screws fixing the drum master
clamper is longer than that of the 12 screws fixing the
metal screen, although they are similar in
appearance. Be careful not to mix then up or use the
wrong screws.
2) When installing the metal drum screen, fix the trailing
edge first with the 2 screws. Then, tighten the other
screws while removing the slack from the screen.
(The two holes [B] on the trailing side are round holes
and the other holes are long holes to allow for the
removal of the slack.)
6. Remove the front and rear drum flanges [C].
SM
5-37
C217
8. PAPER DELIVERY SECTION
8.1 EXIT PAWL CLEARANCE ADJUSTMENT
PURPOSE: If the clearance is too narrow, the exit pawls may hit the drum
screen and damage it. If it is too wide, paper may easily be
wrapped around the drum.
ADJUSTMENT STANDARD:
0.8 (±0.2) mm
CAUTION: When this adjustment has been performed, check the exit
pawl drive timing. (Refer to "8.2 EXIT PAWL DRIVE
TIMING ADJUSTMENT.")
1. Turn off the main switch and disconnect the power plug.
2. Open the scanner unit, and make sure that the drum master clamper on
the drum faces to the top. (This means that the exit pawls are in the
closest position to the drum surface.)
NOTE: The exit pawls move apart from the drum surface only when the
drum master clamper passes the exit pawls.
3. Remove the front cover (4 screws) and swing out the power supply PCB
(2 screws and 4 connectors).
4. Remove the air knife chamber (2 screws).
C217
5-38
SM
[A]
[B]
5. Using a gap gauge, measure the clearances [A] between the drum
surface and the exit pawls. It should be 0.8 mm. There is allowance for a
0.2 mm difference.
Replacement
and
Adjustment
6. If the clearance is not correct, loosen the lock nut. Then adjust the
clearance by turning the bolt [B].
NOTE: The clearance for the front and
rear exit pawls can be changed
separately as follows:
1) Loosen the lock screw [C].
2) Adjust the exit pawl
position by turning the bolt
[D].
[D]
This adjustment should be
done only when the clearances
for the two exit pawls are
different from each other.
Normally this is adjusted during
production. Adjust the
clearance by following steps 1
to 6 above.
SM
5-39
[C]
C217
8.2 EXIT PAWL DRIVE TIMING ADJUSTMENT
PURPOSE: To ensure that the exit pawls move and escape the drum master
clamper while the drum is rotating.
ADJUSTMENT STANDARD:
0 to 0.5 mm
[A]
[B]
[C]
CAUTION: Before this adjustment, the exit pawl clearance from the
drum must be checked. (See "8.1 EXIT PAWL
CLEARANCE ADJUSTMENT".)
1. Turn off the main switch and disconnect the power plug.
2. Remove the front cover (4 screws) and rear cover (6 screws).
3. Open the scanner unit. By referring to the rear end of the drum shaft,
turn the drum manually until the round part of the shaft faces the long
hole as shown [A]. (The rib [B] of the drum drive pulley will meet the long
hole [C].)
C217
5-40
SM
[A]
4. Swing out the power supply PCB (2 screws and 4 connector).
6. If the gap is not correct, loosen the two screws and adjust the cam
follower position [A].
CAUTION: Do not push the cam followers to strongly against the cam.
7. After adjustment, turn the drum manually and be sure that the exit pawls
move properly to escape the drum master clamper.
SM
5-41
C217
Replacement
and
Adjustment
5. For each cam follower, measure the gap between the cam follower and
cam face. It should be 0 to 0.5 mm.
8.3 EXIT ROLLER AND EXIT PAWL REMOVAL
[A]
[B]
[D]
[C]
[E]
1. Turn off the main switch and disconnect the power plug.
2. Remove the air knife camber (2 screws).
3. Open the paper delivery fence.
4. While pushing the joint [A] to the rear, remove the shaft [B] with the lower
exit rollers.
NOTE: When installing, be sure to meet the grooves [C] of the lower
rollers with the plates [D] beside the upper rollers.
5. Slide the exit pawl assemblies [E] to the middle of the shaft, which is the
the thinnest area, for removal.
CAUTION: Do not disassemble the exit pawl assembly. If it is
disassembled, the clearance between the exit pawl and
the drum must be checked after reinstallation.
C217
5-42
SM
9. OPTICS SECTION
9.1 OVERVIEW
Double check all optics adjustments, because these adjustments influence
each other.
The following table shows the reciprocal relationship between the adjustment
procedures. The "O" indicates those items that must be checked (check
items) after items in the left column (adjustment item) is adjusted.
Check Item White Level
Scanning
Scanning
Focus (MTF) Magnification
Line Position Start Position
Ratio
Adjustment
Item
White Level
Scanning Line
Position
Scanning Start
Position
Focus (MTF)
Magnification
Ratio
O
O
O
O
O
O
O
O
O
SM
5-43
Replacement
and
Adjustment
* Necessary Tools
1) Facsimile Test Chart R-21 (P/N 99992131)
2) Oscilloscope
C217
9.1.1 Preparation For Adjustment
[A]
[A]
8 mm
[B]
6 mm
[B]
6 mm
20 mm
20 mm
(216 mm)
7 mm
7 mm (216 mm)
1. Turn off the main switch and disconnect the power plug.
2. Remove the scanner cover (4 screws).
3. Remove the ADF lock plates [A] (1 screw each).
4. Put two marks [B] on each side of the exposure glass.
NOTE: The marks on the operation side are used for the scanning start and
line position adjustments, and those on the other side are used for
the magnification adjustment.
The marks are to correctly place the test chart so that the CCD scans 216
mm of the line on the test chart.
C217
5-44
SM
Test pin
TP204
TP202
Channel 1
Channel 2
AC 0.2 V/DIV.
Vols/DIV.
(DC 0.5 V/DIV.
DC 5 V/DIV.
for white level
adjustment)
Time
0.5 msec/DIV.
TP203
Replacement
and
Adjustment
Oscilloscope
Channel 1
(Scanning line
trigger)
Channel 2
(CCD video data)
GND
5. Connect channel 1 and 2 probes and the grounding terminals of the
oscilloscope to the test pins (TP’s) on the A/D conversion PCB, as
shown in Table 1.
NOTE: Be sure that the light path between the exposure lamp and lens is
not obstructed by the probes or their lead wires.
6. Select the time range and volts/division for each channel of the
oscilloscope as shown in Table 2. Then turn on the main switch of the
oscilloscope.
NOTE: Select DC 0.5 V/DIV. for channel 2 when the white level
adjustment is carried out.
SM
5-45
C217
7. Connect the power plug, and turn on the main switch to access the
output mode. (Turn on the main switch while holding down the Print
Start, Stop, and Clear keys together. Then, press the Memory/Class key
once to get "00" in the memory display.)
8. Select the exposure lamp on mode. (Enter "9" with the number key.)
NOTE1: If the positions of the CCD PCB, lens, and/or lens housing are
different from the original positions (if some are replaced) fix each
part temporarily as follows, to make the adjustment easier:
1) Position the CCD PCB fully on the operation side.
2) Fully insert the lens into the lens housing. Also, be sure that the
white mark on the lens faces to the top.
3) Move the lens housing fully to the exposure lamp side.
C217
5-46
SM
[A]
[B]
[Test Chart]
14 mm
1 mm
1 mm
15 mm
15 mm
L (=216 mm)
4 mm
Replacement
and
Adjustment
1 mm
"L" in the illustration must be 216 mm exactly. Otherwise, the
magnification ratio cannot be adjusted correctly.
NOTE2: If facsimile test chart R-21 is not available, you can make a test
chart, as shown, to do the scanning line position, scanning start
position, and magnification ratio adjustments. (See the following
pages for each adjustment.) Place the test chart with the image side
down and fix it with tape as shown. Place the leading edge of the
test chart even with the edge of the cutout for the original feed roller
[B]. Also, the right side edge should be even with the edge of the
cutout for the exposure glass [A].
If you use the test chart, the waveform for each adjustment that can
be seen in the screen of an oscilloscope will be represented as
follows:
SM
5-47
C217
(1) Scanning Line Position Adjustment
Scanning Line
Trigger
CCD Video Data
Scanned Image
(2) Scanning Line Start Position Adjustment
Scanning Line
Trigger
CCD Video Data
Scanned Image
(3) Magnification Ratio Adjustment
Scanning Line
Trigger
CCD Video Data
40±5 µsec
Scanned Image
C217
5-48
SM
9.1.2 Scanning Start And Line Position Adjustment
PURPOSE: To ensure that the CCD alignment is perpendicular to the
original feed direction (scanning line position). Also, to ensure
that the CCD scanning starts from the correct position on the
exposure glass (scanning start position). The first element of
the 2592 effective CCD elements should read the end of 216 mm
length of a line, which is the maximum length for the CCD main
scanning line.
[A]
[C]
[Facsimile Test Chart R-21]
1. According to the two marks on the operation side of the exposure glass,
and place facsimile test chart R-21 so that the line on the test chart (see
illustration) is correctly positioned on the exposure glass.
NOTE: The right edge of the test chart meets mark [A], and the line on
the test chart meets mark [B].
2. Fix the test chart with tape as shown. Then close the ADF.
3. Place a white sheet [C] beside the test chart.
4. Close the ADF.
5. Access the exposure lamp on mode and press the Print Start key to turn
on the exposure lamp.
SM
5-49
C217
Replacement
and
Adjustment
[B]
[A]
Scanning Line Trigger
CCD Video Data
6. Look at the waveform on the oscilloscope. If the CCD scans the black line
on the test chart correctly, the waveform will look like the one shown in
the illustration above.
7. If the waveform is different, slightly loosen the screws inside the adjusting
knobs [A] and turn the adjusting knobs to make the waveform as shown.
(Scanning line position adjustment)
NOTE: 1) The bottom of the adjusting knobs is an eccentric cam. By turning
the adjusting knobs, the CCD PCB moves up or down.
2) If the CCD scanning line is completely out of the correct position,
a similar waveform will be seen. If the waveform does not change
when white paper is placed on the exposure glass instead of the
test chart, repeat step 7.
C217
5-50
SM
[C]
[A]
[B]
Scanning Line Trigger
CCD Video Data
Scanned Image
9. Look at the waveform on the oscilloscope. If the first CCD effective
elements scan a white area, but not the black line on the test chart, the
waveform for the first part of the CCD main scanning line will be as
shown [A].
10. If the waveform is not as shown [A], move slightly the CCD PCB to the
non-operation side until the CCD scans the white area. (The screws
inside the adjusting knobs must be loosened to move the CCD PCB.)
11. While monitoring the oscilloscope, gradually move the CCD PCB to the
operation side until the first CCD effective element reads the end of the
black line on the test chart. (A few elements leeway is allowed)
NOTE: If step 11 is completed, the waveform will be as shown [B]. The
illustration [B] means that the end of the black line is read by
one element before the first CCD effective element.
12. Securely tighten the screws [C] inside the adjusting knobs.
NOTE: The CCD position may be changed when the screws are
tightened. Repeat steps 6 and 7 to check the CCD position.
SM
5-51
C217
Replacement
and
Adjustment
8. Select 10 times enlargement mode of the oscilloscope to see the
waveform in better detail.
9.1.3 Focus (Modulation Transfer Function) Adjustment
PURPOSE: To adjust the focus distance between the CCD and the lens.
[Facsimile Test Chart R-21]
[A]
8 Lines/mm
Area
Scanning Line Trigger
a
CCD Video Data
1. Place facsimile test chart R-21 on the exposure glass so that the 8
lines/mm area is scanned by the CCD.
2. Access the exposure lamp on mode and press the Print Start key to turn
on the exposure lamp.
3. Check if the waveform looks like the one shown in the illustration above.
NOTE: Be sure that the light path between the exposure lamp and lens
is not obstructed by the ADF cover.
4. Loosen the two screws [A] and then move the lens as shown.
5. Secure the lens when "a" of the waveform reaches its maximum.
CAUTION: Be sure that the white mark on the lens always faces
towards the top.
C217
5-52
SM
9.1.4 Magnification Ratio Adjustment
PURPOSE: To adjust the distance between the lens and original on the
exposure glass to reproduce the images at full size (100%)
magnification ratio.
[A]
[B]
Replacement
and
Adjustment
[C]
[Facsimile Test Chart R-21]
1. According to the two marks on the non-operation side of the exposure
glass, place facsimile test chart R-21 so that the line on the test chart
(see illustration) is correctly positioned on the exposure glass.
NOTE: The left edge of the test chart meets mark [A], and the line on
the test chart meets mark [B].
2. Fix the test chart with tape as shown. Then close the ADF.
3. Place a white sheet [C] beside the test chart.
4. Access the exposure lamp on mode and press the Print Start key to turn
on the exposure lamp.
SM
5-53
C217
[B]
[A]
Scanning Line Trigger
[C]
40±5 µsec
CCD Video Data
Scanned Image
5. Check if the CCD reads the black line on the test chart correctly. If not,
follow "9.1.2 Scanning Start And Line Position Adjustment."
NOTE: If "9.1.2 Scanning Start And Line Position Adjustment" is
completed and the CCD does not scan the black line properly,
reposition the test chart.
6. Select 10 times enlargement mode of the oscilloscope to see the
waveform in better detail.
7. Look at the waveform on the oscilloscope. If the last CCD effective
elements scan a white sheet, but not the black line on the test chart, the
waveform for the last part of the CCD main scanning line will be as
shown [A].
8. Loosen the two screws [B] and then move the lens housing as shown.
9. Secure the lens housing when "a" of the waveform becomes 40±5 µsec.
10. Be sure that the waveform for the first part of the CCD main scanning
line is as shown [C].
11. If not, follow steps 10 to 12 of "9.1.2 Scanning Start And Line Position
Adjustment." Then repeat steps 8 to 10 above.
C217
5-54
SM
9.1.5 White Level Adjustment
PURPOSE: To be sure that the CCD video data is properly amplified through
the A/D conversion PCB.
Scanning Line Trigger
1.9±0.1 V
CCD Video Data
1. Connect channel 2 probe to TP202, channel 1 Probe to TP204, and their
grounding terminals to TP203. (see pg. 5-45)
2. Select DC 0.5 volts/Division for channel 2 and DC 5 volts/ Division for
channel 1.
3. Close the ADF.
4. Access the exposure lamp on mode and press the Print Start key to turn
on the exposure lamp.
Replacement
and
Adjustment
5. Turn VR201 on the A/D conversion PCB so that the maximum level of
the waveform is 1.9±0.1 volts as shown.
SM
5-55
C217
TROUBLESHOOTING
1. ELECTRICAL COMPONENT TROUBLE
Master End Sensor
Original Registration
Sensor
Feed Jam Timing
Sensor
Paper End Sensor
Registration Sensor
Feed Start Timing
Sensor
Exit Jam Timing
Sensor
Master Eject Position
Sensor
Drum Master Sensor
Exit Sensor
SM
Condition
Open
Open
Open
ON condition
(Activated)
OFF condition
(Not activated)
ON condition
(Photo-transistor
is not activated)
OFF condition
(Photo-transistor
is not activated)
ON condition
(Interrupted)
OFF condition
(Not interrupted)
ON condition
(Activated)
OFF condition
(Not activated)
ON condition
(Activated)
OFF condition
(Not activated)
ON condition
(Interrupted)
OFF condition
(Not interrupted)
ON condition
(Interrupted)
OFF condition
(Not interrupted)
ON condition
(Interrupted)
OFF condition
(Not interrupted)
ON condition
(Activated)
OFF condition
(Not activated)
ON condition
(Activated)
OFF condition
(Not activated)
Phenomenon
When the master making key is pressed, "E-00"
is displayed.
The air knife motor does not work.
Machine does not work. (No indicators on the
operation panel turn on.)
Even though no master is present, the machine
starts master feed operation, then "C" and
light.
Even if a master is present,
lights.
When the main switch is turned an, "A" and
light.
After the master making key is pressed, "A" and
light.
The last paper is not fed and "E" and
light.
After the print start key is pressed, the drum
keeps rotating without paper feed.
If there is no paper on the paper table, the print
start key cam activated but "B" and
light.
If there is paper on the paper table,
lights.
When the main switch is turned on, "B" and
light.
After the print start key is pressed, "B" and
light.
After the main motor starts rotating, "E-06" is
displayed.
After the main motor starts rotating, "E-06" is
displayed.
After the 1st print is delivered, "E" and
light.
There is no print count down. (The machine does
not stop printing until the last paper is fed.)
The drum rotation speed is kept at 30 rpm while
printing.
The drum keeps rotating at 30 rpm after the print
start key or the master making key is pressed.
Prints can be made without having a master
around the drum.
After the master feed operation is finished, "C"
and
light.
When the print start key or the master making key
is pressed, "G" and
light.
After the first paper is delivered, "E" and
light.
6-1
C217
Troubleshooting
Component
FU101
(Main PCB)
FU102
(Main PCB)
FU401
(Noise Filter PCB)
Component
Master Eject Sensor
Full Master Sensor
Pressure Plate H.P.
Sensor
Original Set Sensor
Left Cutter Switch
Right Cutter Switch
Master Clamper Switch
C217
Condition
ON condition
(Activated)
OFF condition
(Not activated)
ON condition
(Interrupted)
OFF condition
(Not interrupted)
ON condition
(Interrupted)
OFF condition
(Not interrupted)
ON condition
(Activated)
OFF condition
(Not activated)
ON condition
(Activated)
OFF condition
(Not activated)
ON condition
(Activated)
OFF condition
(Not activated)
Phenomenon
When the main switch is turned on, "F" and
light.
After the master making key is pressed, "F" and
light.
After the drum master is ejected, it is not
compressed. (A master eject jam occurs.)
After the drum master is ejected,
lights.
The pressure plate does not return to the home
position. (A master eject jam occurs at the next
master eject operation.)
When the main switch is turned on, E-12 is
displayed. The pressure plate drive gears are
damaged.
After the printing operation of the last original is
finished, "A" and
light.
When the master making key is pressed, "A"
blinks.
The master is not cut. (A master feed jam occurs.)
When the main switch is turned on, or after the
master is cut, "E-01" is displayed.
Master clamper is not opened or closed. (A
master feed/eject jam occurs.)
When the main switch is turned on, or the master
clamper is opened, "E-00" is displayed.
6-2
SM
2. TROUBLESHOOTING
2.1 IMAGE TROUBLE
1. No image, white lines, uneven image on copy
Does the image created on the master match the original?
No
Yes
Is enough ink supplied to the drum?
Yes
No
Does the ink supply motor rotates?
No
Yes
Check the ink supply mechanism.
Check the ink detection circuit.
Are drum screens clogged with dried ink? (The machine has
not been used for a long time.)
No
Yes
Clean or replace the drum screens.
Has the ink inside the drum separated? (Ink was in storage for
a long time.)
No
Yes
Troubleshooting
Install a new ink cartridge.
Insufficient printing pressure applied to drum?
Yes
Check the printing pressure mechanism.
Sheet of paper wrapped under the master or two masters wrapped
around the drum?
No
Yes
Remove the paper or the extra master from the drum.
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Has the platen roller been mounted correctly on the thermal head?
Yes
No
Mount the platen roller correctly.
Make prints in Test Pattern mode and check the image.
Does the same problem still occur with the test pattern?
Yes
No
The CCD PCB, A/D conversion PCB or main
PCB is defective.
The thermal head or main PCB is defective.
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2.2 PAPER FEED TROUBLE
1. No paper is fed from the paper table.
Is the paper feed roller in contact with the paper?
Yes
No
Check the paper table.
Does the paper feed roller turn normally?
No
Yes
Check the paper feed roller surface and the
friction pad. Increase the feed roller pressure by
lowering the pressure adjustment levers.
Is the paper feed clutch energized?
No
Yes
Check the paper feed clutch and the one-way
clutch inside the paper feed roller.
Does the power supply PCB applies +24 V to the main PCB?
Yes
No
Replace the power supply PCB.
Troubleshooting
Check the main board, harnesses, and the feed jam timing sensor.
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2. Paper jams under the second feed roller.
Does the lower 2nd feed roller turn normally?
(Remove the rear cover and check the gear rotation.)
Yes
No
Does the registration sensor work properly?
(Check the sensor function using I/O check mode.)
Yes
No
Replace the registration sensor.
Replace the 2nd feed motor and check machine
operation. If the machine still does not work properly,
replace the main PCB.
Does the upper second feed roller contact the lower second feed roller at
the proper timing?
Yes
No
Check the upper 2nd feed roller release mechanism. Also
check if the drum is set at the correct position referring to page
5-31.
Is the pressure release solenoid energized?
Yes
No
Replace the main PCB.
Check the pressure release solenoid, press roller lock lever clearance
and the printing pressure mechanism.
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PCRIP-10
Priport Controller
Installation Guide
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7.1 INTRODUCTION
The Priport Controller is an external PostScript® and PCL-5® compatible
processor designed to add a computer interface to Priport Digital
Duplicators. Since it is separate from the Priport, the designers were able to
use high-speed techniques making it one of the fastest add-on processors
available.
The Controller uses a high-speed 25 megahertz Intel 960-CF RISC
microprocessor chip to achieve its high speed processing. In addition the
Controller contains 4 Megabytes (Mb) of RAM which can be upgraded to 16
Mb.
This product features Pipeline Associates’ PowerPage interpreter, a
widely recognized LaserWriter® compatible implementation of Adobe’s®
PostScript interpreter. The PowerPage interpreter offers users excellent
quality and performance in handling the thirty-five industry standard Type 1
compatible fonts built into the Controller. Pipeline Associates’ PCL-5
compatible interpreter is also built into the Controller providing the eight
standard Intellifont PCL-5 fonts.
The Controller supports several models of Priport Digital Duplicators with
print resolutions of 300 dots per inch (dpi). The U.S. page sizes supported
by the Priport Controller are US Letter, US Legal and US 11 x 17.
Supported international page sizes are A3, A4, B4 and B5.
We reserve the right to make amendments to the technical specifications
and/or the external appearance of the equipment without prior notice.
7.2 SYSTEM REQUIREMENTS
Supported Priports:
- Models VT1730 and VT2105
Compatible computers:
- Apple Macintosh
Memory requirements:
- The Priport Controller places no requirements on the RAM in the PC or
Macintosh.
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C217
PCRIP-10
Priport
Controller
- IBM 286, 386, 486 and compatible PC’s
7.3 INSTALLATION PROCEDURE:
CAUTION: DO NOT use the documentation that is packed in the Kit,
the instructions are incorrect. Discard the complete set
of material titled "INTERFACE UNIT -10 TYPE 1 .........".
Use the installation procedure listed below.
1. Insure that the Priport is turned off and disconnected from the power
source.
2. Prior to installation, set the dip switches DPS101 on the new Video
Interface Board to the correct setting for the Model VT1730 Priport.
Number 1: On (up)
Number 2, 3, 4: OFF (down)
3. Remove the front cover of the Priport.
CAUTION: Take appropriate precautions to prevent a static
discharge during the next two steps.
4. Note the placement of pin 1 of the EPROM, IC108 before removing from
the Main Control Board [A] of the Priport. Refer to figure 1.
Ribbon Cable
[C]
Stud
[B]
CN105
IC108
Main Control
PCB
[A]
EPROM
Interface Bracket [D]
Interface Harness
M4 x 8 Screw
FIGURE 1:
FRONT VIEW OF FRAME WITH MOUNTING HARDWARE
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7-4
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5. Install the new EPROM into IC108.
6. Install the long stud [B] into the chassis, directly above capacitor, C225
on the Main Control Board. (Will be used to support the upper right
corner of the Video Interface Board)
7. Attach one end of the short I/O Ribbon Cable [C] to the connector,
CN105 on the Main Control Board.
8. Remove and discard the mounting screw (not shown) from lower right
corner of the Main Control Board. Refer to figure 2.
[C]
Interface PCB
M3 x 8 Screws
M3 x 35 Screws
Board Spacer
[E]
M3 x 8 Screws
Cable Tie
[G]
PCRIP-10
Priport
Controller
FIGURE 2:
FRONT VIEW OF FRAME WITH INTERFACE PCB
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9. Mount the Interface Bracket [D] to the cleared mounting position, use a
M4x8 screw and flat washer (Note: Flat washers not illustrated).
10. Attach the upper and lower right corners of the Video Interface Board,
use two M4x8 screws and flat washers.
11. Thread the M3x8 screw, with flat washer, through the mounting hole in
the lower left corner of the Video Interface PCB, the Board Spacer [E],
through the Main Control Board and into the chassis.
12. Attach the upper left corner of the Video Interface PCB to the Long Stud
[B], use a M3x6 screw with flat washer.
13. Attach the short I/O Ribbon Cable to the Video Interface PCB, CN102.
14. Remove the rear cover from the machine.
15. Working from the rear of the machine, thread the small connector end of
the Interface Harness with Bracket [F] through the cable channel to the
front of the machine. Refer to figure 3.
Rear Frame
Interface Harness
[F]
M4 x 8 Screws
FIGURE 3:
REAR VIEW OF FRAME
16. Attach the small connector of the Interface Harness to the Video
Interface PCB, CN101.
17. Attach the U-shaped bracket of the Interface Harness across the cable
channel of the chassis, use two M4x8 screws with flat washers. Refer to
figure 3.
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18. Snap out the communication port cover plate from the lower center of
therear cover.
19. Using the cable tie [G], fasten the Interface Harness to the Interface
Bracket [D] (at the indentation of the bracket). Refer to figures 1 and 2.
20. Re-assemble the machine.
21. The last installation step is to attach the Ferritecore (not illustrated) onto
the interconnect cable that is used to connect the Controller Box to the
Priport machine. "Snap" the Ferritecore around the cable nearest the
MALE end of the cable (connects to the Priport)
22. Refer to the PCRIP - 10 Priport Controller "Installation Guide" for the
proper cabling configuration.
23. Refer to the PCRIP - 10 Priport Controller "User’s Guide" for the proper
set-up and operation procedures.
7.4 PARTS LISTING:
INTERFACE UNIT-10 TYPE 2 KIT
QUANTITY
DESCRIPTION
EPROM for Main Control PCB (IC108)
1
Interface Harness with Mounting Bracket
1
Video Interface PCB
3
Phillips Screw M4x8 with flat washer
3
Phillips Screw M3x8 with flat washer
1
Interface Bracket
1
Long Stud
1
Board Spacer
1
Cable tie
1
Ferritecore
1
Diagnostic Plug
PCRIP-10
Priport
Controller
1
* Optional Test Tool, Refer to Section 7.6, Step 8.
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7.5 CABLING BETWEEN PCRIP-10 AND COMPUTER
The cable to be installed now is one that the customer has purchased to
match his specific computer and communication port choice. The correct
cable for each computer and communication port is described generally
below. (For more detailed technical information on cables, see page 7-12).
A.
IBM and compatibles - Parallel
1. Make sure that the customer’s computer is turned off.
2. Attach the DB-25 Male end of a standard PC parallel printer cable to the
customer designated parallel output port on the rear of the computer.
Record the choice of LPT1 or LPT2 because this port name will be
required during the configuration process.
3. Attach the other end (36-pin Centronics Male) of a standard PC parallel
printer cable to the input port on the rear of the PCRIP-10 labeled
"Parallel In".
AppleTalk
Parallel In Digital Duplicator
Priport
Diagnostic
Serial In
Personal Computer
Figure A - Parallel Connection
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B. IBM and compatibles - Serial
1. Make sure that the customer’s computer is turned off.
2. Attach the DB-25 Female end of a standard PC serial printer cable to the
customer designated serial output port on the rear of the computer.
Record the choice of COM1 or COM2 because this port name will be
required during the configuration process.
3. Attach the other end (DB-25 Male) of a standard PC serial printer cable
to the input port on the rear of the PCRIP-10 labeled "Serial In".
AppleTalk
Parallel In Digital Duplicator
Priport
Diagnostic
Serial In
Personal Computer
Figure B - Serial Connection
C. Macintosh computers - AppleTalk Standard
1. Make sure that the customer’s computer is turned off.
2. Attach one 8-pin mini din Male end of a standard Macintosh printer cable
to the printer output port on the rear of the computer.
AppleTalk
Parallel In Digital Duplicator
Priport
Diagnostic
Serial In
Macintosh
Figure C - AppleTalk Connection
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C217
PCRIP-10
Priport
Controller
3. Attach the other end (8-pin mini din Male) of a standard Macintosh
printer cable to the input port on the rear of the PCRIP-10 labeled
"AppleTalk".
7.6 SYSTEM VERIFICATION AND DEFAULT
CONFIGURATION
Now that the physical installation is complete, you are ready to start
the system verification.
1. Plug in all components of the system and turn them on in this order:
1. Computer
2. Priport
3. PCRIP-10
2. Look at the two lights located in the lower left corner below the product
label. The left hand light indicates "Power-on". It will stay on as long as
the PCRIP-10 is receiving power.
3. The right hand light indicates "Ready". It will come on for a few seconds
at Power-on and then go off for up to 60 seconds while the PCRIP-10
runs its internal diagnostics. If the Ready light comes back on and stays
on, the PCRIP-10 has passed its startup diagnostics and verified
communication with the Priport.
4. If the Ready light flashes quickly, the PCRIP-10 has not been able to
verify communication with the Priport.
A. First, check to see if the Priport is plugged in and turned on.
B. Next, check to see that the cable from the PCRIP-10 to the Priport is
securely seated in the ports at each end.
C. If the Ready light does not come on after these steps, turn off the
PCRIP-10 and then the Priport.
- Check to see that the small "AMP" connector of the Interface Harness
is securely fastened to the connector on the Video Interface PCB.
- Check to see that the I/O Ribbon Cable which connects the Video
Interface PCB to the image processing board inside the Priport is
securely fastened as well. Then, turn on the Priport and the PCRIP-10.
Watch the Ready light again to see if it comes on briefly, goes off for
approximately 30-60 seconds and then comes back on. If so, you are
ready to proceed. If not, contact your local service organization for
help.
5. If the Ready light fails to come on at all, the PCRIP-10 has been
damaged, contact your local service organization for help.
6. Push the On Line button on the Priport Control Panel. The Priport must
be On Line for the Priport to accept input from the computer through the
PCRIP-10. (If the Priport is not On Line, the scanner in the Priport will be
enabled instead.) If the green On Line light comes on, skip to Step 8.
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7. If the On Line light does not come on, check to see that the new ROM
was installed as described in Step 5 of the Installation Procedure and is
seated firmly in its socket. Try the On Line key again. If the On Line light
comes on, skip to Step 8. If not, contact your local service organization
for help.
8. Turn the PCRIP-10 off. Install the Diagnostic Plug
P/N DP000001(optional test tool) in the port labeled Diagnostic on the
rear of the PCRIP-10 and turn it back on again. The PCRIP-10 will send
an internal PostScript file to the Priport which will output a Diagnostic
Status page. This page includes PostScript font samples as well as
configuration status from the PCRIP-10. (An example of this page can
be found on page 7-37 of the Priport Controller User’s Guide.)
9. The configuration status information found in the lower left corner of the
page should match the following factory default settings:
Selected Page Size: US Letter (in US and Canada) or A4
(International)Controller RAM size: 4 MegabytesMode: Postscript
Compatibility
(The number which follows "Controller Firmware Rev:" will vary
according to when the PCRIP-10 was manufactured. This firmware
revision number will be needed only if you must contact your local
service organization about technical problems with this PCRIP-10 unit.)
PCRIP-10
Priport
Controller
Now that you have verified that the PCRIP-10 can successfully send
files to the Priport, you are ready to proceed with configuring the
PCRIP-10. Turn to page 7-23 of the User’s Guide to continue.
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7.7 CABLE PIN-OUT DIAGRAMS
A. PARALLEL INTERFACE CABLE (CENTRONICS) PIN-OUT
CONNECTIONS:
DB-25 Pin Male
Centronics
1 .............................................................. 1
2 .............................................................. 2
3 .............................................................. 3
4 .............................................................. 4
5 .............................................................. 5
6 .............................................................. 6
7 .............................................................. 7
8 .............................................................. 8
9 .............................................................. 9
10 .......................................................... 10
11 .......................................................... 11
12 .......................................................... 12
13 .......................................................... 13
15 .......................................................... 32
18 - 25 ............................................ 19 - 30
B. PARALLEL INTERFACE CABLE (CENTRONICS) PIN ASSIGNMENTS:
Signal
Pin
-Strobe (Input).......................1
Data 1 (Input)........................2
Data 2 (Input)........................3
Data 3 (Input)........................4
Data 4 (Input)........................5
Data 5 (Input)........................6
Data 6 (Input)........................7
Data 7 (Input)........................8
Data 8 (Input)........................9
-Acknlg (Output)................. 10
Busy (Output)..................... 11
Paper Error (Output) .......... 12
Select (Output)................... 13
NC...................................... 14
NC...................................... 15
0 VDC ................................ 16
GND................................... 17
+5 VDC (Output) ................ 18
Signal
Pin
GND ................................... 19
GND ................................... 20
GND ................................... 21
GND ................................... 22
GND ................................... 23
GND ................................... 24
GND ................................... 25
GND ................................... 26
GND ................................... 27
GND ................................... 28
GND ................................... 29
GND ................................... 30
NC...................................... 31
-Error.................................. 32
+5 VDC (Output) ................ 33
NC...................................... 34
+5 VDC (Output) ................ 35
NC...................................... 36
The dash (-) before some signals indicates that the signal is negative true
(active LOW). GND means the connection is a ground. NC indicates that
the pin has no connection.
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C. SERIAL INTERFACE CABLE PIN-OUT CONNECTIONS:
Controller
DB-25 Pin Male
PC
DB-25 Pin Female
1 .............................................................. 1
2 .............................................................. 3
3 .............................................................. 2
5, 6 ........................................................ 20
7 .............................................................. 5
8 .............................................................. 7
20 ....................................................... 5, 6
ControllerPC
DB-25 Pin Male
DB-9 Pin Female
2 .............................................................. 2
3 .............................................................. 3
4 .............................................................. 1
5, 6 .......................................................... 4
7 .............................................................. 5
8 .............................................................. 7
20 ........................................................ 6, 8
NOTE:
The cable pin-outs shown above are recommended; however, any
standard serial printer cable should work.
D. SERIAL INTERFACE CABLE PIN ASSIGNMENTS FOR
CONTROLLER:
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7-13
PCRIP-10
Priport
Controller
Signal
Pin
Protective ground shield .................................................................... 1
Transmitted data from the Controller (Output)................................... 2
Received data by the Controller (Input) ............................................. 3
Request to send (Output)................................................................... 4
Clear to send (Input) .......................................................................... 5
Data set ready (Input) ........................................................................ 6
Signal ground ..................................................................................... 7
(Not Used).......................................................................................... 8
Data terminal ready (Output) ........................................................... 20
C217
7.8 RAM UPGRADE PROCEDURE
The RAM in the PCRIP-10 consists of four (4) - 1 Megabyte by 8 (or 9)
Single-Inline-Memory-Modules (SIMMs) running at 70 nanoseconds. A
SIMM consists of a very small (appr. 3/4" inch by 3 1/2" inches) printed ciruit
board (PCB) with 30 contact fingers which plug into sockets on the main
board of the PCRIP-10. Dynamic RAM memory chips which are soldered on
to this small PCB can communicate with each other through the wiring in the
board and with the main board through the 30 contact fingers. The actual
physical number of DRAM chips installed on the SIMM can be either 2 or 8
for 1 Mb x 8 (3 or 9 for 1 Mb x 9) depending on the density of the chips. (See
Figure 1.)
Figure 1 - SIMM
"1 Megabyte X 8" (or 9) describes a SIMM with 1 Megabyte usable storage
which sends data out 8 bits (or 9 bits) at a time.
"70 nanoseconds" describes how fast the memory can respond in billionths
of a second to commands from the Intel CF processor chip on the main
board of the PCRIP-10.
HOW TO UPGRADE RAM TO 16 MEGABYTES
To upgrade the PCRIP-10 to 16 Megabytes of RAM from the factory
standard, contact either a local computer dealer or an electronic component
distributor about purchasing parts with the following description:
Four (4) - 4 Megabyte X 8 (or 9) SIMMs with 30 contact fingers running at 70
nanoseconds (ns) While SIMMs of this variety are available in both 70 and
80 ns speeds, BE CERTAIN TO PURCHASE ONLY SIMMS WHICH RUN
AT 70 NS! Due to the high speed of the Intel CF processor chip, SIMMs
running at 80 nanoseconds will not work in the PCRIP-10.
NOTE:
Please take appropriate precautions for preventing static
discharge throughout this procedure.
1. Turn off and disconnect all cables to the PCRIP-10.
2. Slide the metal chassis of the controller from its plastic housing.
3. Remove the 3 screws from each side and 2 screws from the backpanel
which hold the chassis lid in place.
4. Remove the chassis lid and set it aside.
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5. With the chassis oriented with the 2 LED’s facing you, the 4 SIMMs to be
replaced are located directly to your right. (See Figure 2.) Main PCB
Main PCB
4 SIMMs in sockets
LED’s
NOTE:
Figure 2 - Top View of PCRIP-10
BE VERY CAREFUL NOT TO BREAK ANY PORTION OF THE
SIMM SOCKET OR SOCKET CLIP WHEN REMOVING OR
INSTALLING SIMMS. THIS IS AN ITEM WHICH CAN BE
REPAIRED ONLY BY REPLACING THE MAIN BOARD AT THE
FACTORY!
6. Starting with the SIMM in the socket closest to you, gently move the clip
on one end of the socket to release the edge of the SIMM.
7. Gently move the clip on the other end of the socket to release the other
edge. When both edges are released the SIMM will rotate forward
(toward you) at a 45 degree angle.
8. Carefully remove the existing SIMM by pulling it towards you and set it
aside.
10. Starting with the SIMM socket farthest away from you, with the notched
edge of the SIMM pc board on your right, insert one of the new 4
Megabyte X 8 (or 9) SIMMs in the socket at a 45 angle (toward you).
The insertion angle for the new SIMMs is the same angle you used
when removing the previous SIMMs.
11. Gently rotate the top of the SIMM away from you until you see the clips
on each end of the socket engage. Check to see if the prongs of the
clips are inserted in both of the small holes at each end of the SIMM.
When correctly inserted, the SIMM should be firmly seated in the socket.
12. Repeat Steps 10 and 11 for each on the remaining SIMMs, each time
moving to the next socket closer to you.
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C217
PCRIP-10
Priport
Controller
9. Repeat Steps 6 through 8 for each of the remaining SIMMs, each time
moving to the next socket away from yourself.
13. To verify that the SIMM installation was successful, reattach the chassis
lid to the chassis and reconnect all cables including the power cable to
the PCRIP-10.
14. Install the Diagnostic Plug in the Diagnostic Port on the backpanel of the
PCRIP-10.
15. Power on the PCRIP-10. A Diagnostic Status Page should be output to
the Priport which confirms the "Controller RAM size" as 16 Megabytes. If
the Diagnostic Status Page is correct, you may skip to Step 18. If the
Diagnostic Status Page does not reflect the upgrade to 16 Megabytes of
RAM, go to Step 16. If the Diagnostic Status Page does not output at all
and the PCRIP-10 Ready light is off, go to Step 17.
16. If the Diagnostic Status Page still shows only 4 Megabytes as the
"Controller RAM size", you need to recheck that each of the 4 SIMMs
you just installed match the specification of "4 Megabytes X 8" or "4
Megabytes X 9" as given above. The PCRIP-10 startup diagnostic
routine has checked the RAM and only found 4 Megabytes. BE SURE
TO TURN OFF AND UNPLUG THE CONTROLLER BEFORE MAKING
ANY FURTHER CHANGES TO THE SIMMS. When the changes are
completed, repeat Steps 13 through 15 to verify successful installation
before continuing to Step 18 for reassembly.
17. If a Diagnostic Status Page was not output to the Priport at all, the
PCRIP-10 startup diagnostics routine has checked the RAM in the
PCRIP-10 and found an error that prevented any further operation. BE
SURE TO TURN OFF AND UNPLUG THE CONTROLLER BEFORE
MAKING ANY FURTHER CHANGES TO THE SIMMS. When the
changes are completed, repeat Steps 13 through 15 to verify successful
installation before continuing to Step 18.
- First, check to see if all the SIMMs are properly seated in their sockets.
There should be no movement from side to side and very little
movement up and down if the SIMMs are properly seated.
- Next, verify that the newly installed SIMMs are, in fact, 70 ns in speed.
As mentioned in the purchase specification above, 80 ns SIMMs do
not respond quickly enough to work with the Intel CF processor in the
PCRIP-10 and can not be used!
- Check that all the newly installed SIMMs are 4 Megabyte X 8 (or 9)
and that you have not accidently reinstalled one of the 1 Megabyte X 9
SIMMs you removed.
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- If none of the steps above have solved the problem, it is possible,
though highly unlikely, that one of the new SIMMs is defective. If the
SIMMs were purchased from reputable dealer or distributor, these
components should have been tested and should also be replaceable
under warranty.
18. Make sure the PCRIP-10 is turned off and that the Diagnostic Plug and
all cables are removed.
19. Make sure that the chassis lid is reattached with 8 screws--3 on each
side and 2 on the backpanel.
PCRIP-10
Priport
Controller
20. Slide the metal chassis back into the plastic housing. Be careful to line
up the two LED’s on the front of the chassis with the holes cut in the
front panel of the plastic housing for them.
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Priport Controller
PCRIP-10
Priport
Controller
User’s Guide
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7-19
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7.9 REGULATORY NOTICES
FCC REGULATIONS
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Shielded interconnect cables must be employed with this equipment to
insure compliance with the pertinent RF emission limits governing this
device.
7.10TRADEMARKS
© 1990 Elesys, Inc. All rights reserved. Elesys is a registered trademark of
Elesys, Inc.
Governmental rights to this product are restricted. See license agreement.
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PCRIP-10
Priport
Controller
Changes or modifications not expressly approved by Elesys, Inc. could void
the user’s authority to operate the equipment.
The following is a list of trademarks and their respective manufacturers:
PowerPage by Pipeline Associates, Inc., Adobe and PostScript are
registered trademarks of Adobe Systems, Inc., Intel by Intel Corp.,
Hewlett-Packard, LaserJet and PCL-5 by Hewlett-Packard Company, IBM by
International Business Machines Corp., Apple, Macintosh, LaserWriter and
AppleTalk by Apple Computer, Inc., Intellifont by Agfa Corp. Product names
mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
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7.11 HARDWARE INSTALLATION
1. The Controller is connected by cables between both the computer and
the Priport. (The computer and Priport are not directly connected to
each other.) The inputs to the Priport Controller replicate those of a
standard printer, including Parallel, RS-232 Serial and AppleTalk®
inputs. Simply remove the cable from the printer and insert it into the
appropriately labeled connector on the backpanel of the Controller. DO
NOT CONNECT A SERIAL CABLE TO THE DIAGNOSTIC PORT.
2. The Controller is connected from the Priport port on its backpanel to the
input port on the back of the Priport. The required cable is a standard
IBM-PC parallel printer cable which is included with the Controller.
3. Cabling Diagrams:
Parallel Connection
AppleTalk
Parallel In Digital Duplicator
Priport
Diagnostic
Serial In
Personal Computer
Serial Connection
Parallel In
AppleTalk
Digital Duplicator
Priport
Diagnostic
Serial In
Personal Computer
PCRIP-10
Priport
Controller
AppleTalk Connection
AppleTalk
Parallel In Digital Duplicator
Priport
Diagnostic
SM
Serial In
7-23
Macintosh
C217
7.12 PRIPORT CONTROLLER CONFIGURATION
1. Factory Settings:
The Controller comes preset with the following factory defaults:
- Input Buffers:
Parallel Inputs - 256 Kb
Serial Inputs - 4 Kb
AppleTalk - Not applicable
- Page Size:
US Letter (8-1/2" x 11") for U.S. and Canada
A4 (210mm x 297mm) for International
- Mode:
PostScript compatible
2. Controller Configuration Programs:
Three diskettes have been provided with the Controller: one 5 1/4" and
one 3 1/2" for IBM and compatible computers and one 3 1/2" for Apple
Macintosh computers. Each of these configuration programs allows you
to change the factory settings of the Controller (including the ones listed
above) until the next power down of the Controller or permanently if
desired.
NOTE:
See Step 9 on page 7-26 on how to save configuration changes
you have made with an IBM and compatible computers. See Step
5 on page 7-29 on how to save configuration changes made with
an Apple Macintosh.
7.13 CONFIGURATION OF IBM PC AND
COMPATIBLES
The configuration program is menu-driven and has been designed to be very
simple to use. (If you will be changing output page size regularly, you should
copy these files to your hard disk.) When the initial configuration is
completed and saved, you should rarely need to use this program disk.
- If you have the Controller connected to your IBM PC or compatible
output port labeled LPT1 and you wish to output in PostScript mode
with the default page size listed above, you will not need to use this
program to make any configuration changes from the factory settings.
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- If you have the Controller connected to your IBM PC or compatible to
an output port labeled LPT2, COM1, or COM2, or wish to change to
PCL-5 mode, or wish to change to any page size other than the
default page size listed above, you will need to use this program.
- If you have more than one computer (IBM compatibles and/or a
Macintosh) connected to the Controller, you should be cautious
about switching modes between PostScript and PCL-5
compatibility. To achieve the best output results, both IBM compatibles
should output files in the same mode. Also, if the Controller is set in
PCL-5 mode for the IBM’s, the Macintosh will be locked out because it
can only send PostScript compatible files.
Step 1. Insert the Utility Disk in drive A. (If you are copying these files to
your hard disk, first create a subdirectory named PCRIP. At the
DOS prompt type md PCRIP <ENTER> Next, type cd PCRIP
<ENTER> At the C:\PCRIP prompt, type COPY A:*.* <ENTER>
and skip to Step 3.)
Step 2.
Type A: <ENTER>
Step 3.
Type PCRIP <ENTER> (The Main Menu Bar will appear across
the top of the screen.)
File Page Install PC Port Input Bufrs Special Help Quit
The "Help" Menu item explains the general function of each item in
the menu bar. The first item on each of the pull-down menus is
context-sensitive help. This item describes the functions of all the
other items available on whatever pull-down menu you have open.
Step 5. Use the up or down arrow keys to highlight the correct PC output
port and <ENTER>. This port selection should match the name of
the physical port on the back of your computer that is connected by
cable to the Controller. Any selection from any menu will move you
back up to the main menu bar.
If you selected COM1 or COM2, you must select the "PC Port"
pull-down menu again to specify a baud rate. The selections
available are: Com Port Baud Rate 1200, Com Port Baud Rate
2400, Com Port Baud Rate 4800, Com Port Baud Rate 9600 and
Com Port Baud Rate 19.2K. This selection will tell the Controller
what speed to expect data from your computer. Most serial port
users should select "Com Port Baud Rate 19.2K".
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PCRIP-10
Priport
Controller
Step 4. Use the right arrow key to move the highlight over the "PC Port"
pull-down menu and <ENTER> The selections available are:
Printer Port LPT1, Printer Port LPT2, Printer Port COM1,
Printer Port COM2, Printer Port to LOG file, and Printer Port to
NULL.
Step 6. Use the left arrow key to move the highlight back to the "Install"
pull-down menu and <ENTER>. The selections available are:
Set PostScript compatible input, Set PCL-5 compatible input,
Enable AppleTalk, Disable AppleTalk, Reset to Factory Config,
Print Test File, Print Diagnostic Status Page, Save
Configuration Changes. You must use this menu to select PCL-5
mode or to re-select PostScript mode if you have previously
selected PCL-5 mode. You may also use items from this menu to
permanently save the configuration settings you have made during
this session, turn AppleTalk on or off, print a test page, print the
diagnostic status page or reset the Controller back to the original
factory settings. Just use the up or down arrow keys to highlight
your choice and <ENTER>.
Step 7. Use the left arrow key to move the highlight back to the "Page"
pull-down menu and <ENTER>. The selections available are:
Page Size A4, Page Size B4, Page Size B5, US Letter, US Legal.
You must use this menu to select an output page size other than
the factory default. Just use the up or down arrow to highlight your
new output page size and <ENTER>.
Step 8. If your computer is connected to the Controller through COM1 or
COM2, OR if it is the only computer connected, you may also
want to change the input buffers. The larger the input buffer,
the faster your print job will be processed, however there is a
limited amount of memory to be allocated to input buffers.
Use the right arrow key to move the highlight to "InputBufrs"
pull-down menu and <ENTER> . The selections available are:
Parallel Input Buffer Size = 0K, Parallel Input Buffer Size =
256K, Parallel Input Buffer Size = 256K, Serial Input Buffer Size
= 0K and Serial Input Buffer Size = 64K. If you are the only
computer user hooked to the Controller, you should select the
maximum available. For a single computer connected to COM1 or
COM2, use the down arrow key to select "Serial ... = 64K". For a
single computer connected to LPT1 or LPT2, use the down arrow
to choose "Parallel ... = 512K", though the factory default of 256K
should be adequate.
Step 9. When all the configuration changes are completed, you must
decide if you want to make them permanent. If you do not complete
this step, any changes you have made this session will be lost the
next time the Controller is turned off. If you do complete this step,
the Controller will remember any changes you have made through
all power cycles. Use the right or left arrow to highlight the "Install"
pull-down menu and <ENTER>. Use the down arrow key to select
"Save Configuration Changes" and <ENTER>. You can change
and save the configuration settings of the Controller as often as
you wish.
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The two remaining Main Menu items, "File" and "Special", provide
functions which may be useful during setup or reconfiguration of
the Controller.
The following selections are available in the "File" menu: Print a
File, Eject Page, Info About this Program and Quit (Exit) this
Program. To print an output file from the hard disk or a diskette as
a test of the configuration before saving or exiting the program, you
would use the "Print a File" command. To clear the Input Buffer of
the Controller or to create a master for a blank page, you would use
the "Eject Page" command. To check the revision number of the
PCRIP program which you are using, you would choose "Info
About this Program". You may also exit the program from this
menu.
PCRIP-10
Priport
Controller
The following selections are available in the "Special" menu: Set
Inter-Job Timeout Value, Disable Formfeed between Jobs,
Enable Formfeed between Jobs and Enter Executive Mode.
The factory default setting for Inter-Job Timeout Value is 20
seconds. In other words, if the Controller does not receive any
data from the computer for more than 20 seconds, the Controller
will assume that the print job is complete and signal the start of
master making in the Priport. Some software applications,
specifically Windows-based programs which generate
graphic-intensive output, may require a longer timeout value. If you
use the "Set Inter-Job Timeout Value" to change this setting, we
recommend that you increase the timeout value in 10 second
increments until you achieve the desired output results. The
factory default setting also has Formfeed Enabled. If the PCL-5
output file does not include a formfeed, the Controller will
automatically generate one. You may turn this feature off with
"Disable Formfeed between Jobs" and turn it back on with
"Enable Formfeed between Jobs". This menu also provides an
advanced PostScript feature called "Executive Mode" which allows
direct entry of PostScript programming commands from the
keyboard of the computer.
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7.14 CONFIGURATION OF MACINTOSH COMPUTERS
The utility disk contains a program called "FontDownLoader" and 13 small
PostScript format files. These files contain the instructions for changing the
output page size, printing the diagnostic status page, saving configuration
changes permanently and numbering multiple Controllers if more than one
Controller is connected to the same AppleTalk network. (If you will be
changing the output page size regularly, you should copy the entire PCRIP
Utility folder onto your desktop or hard disk.)
- The files which will be used most frequently are the output page size
selection files. They are "A4", "B4", "B5", "US Letter" and "US Legal".
- If you wish to verify that the page size selection is correct, you can
select "Diagnostic Status Page." This file will generate a one page
print-out of PostScript font samples as well as a listing of the current
Controller settings at the bottom of the page. See Appendix A for an
example of this Diagnostic Status Page output.
- If you have more than one Controller installed on an AppleTalk
network, you will need to add a number to its name so that Appletalk
can distinguish between the Controller units. The file names are
"Priport #1", "Priport #2", "Priport #3", etc. If you only have one
Controller installed on the AppleTalk network, you will not need to use
these files at all.
- If you have changed the output page size or the name/number of the
Controller and wish to retain that change as the Controller’s power on
default, you will also need to use "Save Config Changes."
Step 1. Insert the Priport Controller Disk in the drive and double click on the
floppy icon to open it.
Step 2. Double click on the Priport Controller folder to open it and then
double click on "DownLoader 5.0.1". (A new window will NOT
appear on the screen but a new smaller menu bar with only three
pull-down menus--File Edit Special--will appear.)
Step 3. Under the File Menu, the selections available are: Download Font
and Download PostScript File and Quit. Double click on
Download PostScript File. (A dialog box listing the 13 possible
file choices will appear on the screen.)
Step 4. Point and click to select the file which will make the desired
configuration change and click on Open. (While the file is being
sent, AppleTalk will display a printer status report. When the file
has been successfully received by the Controller, the following
message will be displayed "The download was successful".)
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Step 5. Click OK. If you wish to make any other changes, start again at
Step. 3. If you are finished making or saving the configuration
changes, select Quit under the File menu.
7.15 APPLICATION SOFTWARE SET-UP
1. Printer Drivers:
Each desktop publishing or word processing application provides printer
drivers for PostScript and PCL-5 compatible printers. Please follow the
instructions supplied with your application software to select the
appropriate printer for the page size you wish to send to the Priport. We
have supplied examples for MS Windows 3.1 and WordPerfect.
2. Printer Selection:
A. PostScript-Compatible Printing - DOS:
- Windows 3.1 applications (Pagemaker, Corel Draw, MS Word for
Windows, etc.) should select "Postscript Printer" for the following
page sizes: Letter, Legal, A4 and B5.
- WordPerfect 5.1 users should select a "TI Microlaser" for the following
page sizes: Letter, Legal and A4.
- WordPerfect 5.1 users needing B4 or B5 page sizes should install the
WPPSE1.ALL file (supplied on the 3 1/2" Priport Configuration Disk for
IBM and compatibles) and select "Priport Controller".
B. PostScript-Compatible Printing - Macintosh:
- Using the pull-down menu from the Apple icon, point and click on
Chooser.
LaserWriter. (The Macintosh will then poll the AppleTalk network and
return the Priport name in the right-hand dialog box.)
- If it is not already selected, you should point and click on Priport now.
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PCRIP-10
Priport
Controller
- Within the Chooser left-hand dialog box, point and click on
When you close the Chooser, the Macintosh is ready to send files to the
Controller from any Macintosh software program. This driver supports the
printing of all possible output page sizes through the Controller; however,
you may be limited by the page size choices within the specific Macintosh
application itself.
C. PCL-5 Compatible Printing - (only applicable for DOS applications):
All users should select an "HP LaserJet III" printer within their software
application for letter, legal or A-4 page sizes. (Other page sizes are not
available.)
7.16 PRIPORT CONTROLLER OPERATION
1. Power-On/Power-Off Sequence:
Please follow the steps listed below to turn on and off your system:
- Power-On:
1. Computer
2. Priport
3. Controller
- Power-Off:
1. Controller
2. Priport
3. Computer
2. Controller - Front Panel Indicator Lights:
- Power-On Light (left hand light): When light is on, power is on.
- Ready Light (right hand light)
3. Ready Light:
A. The Controller is ready for operation after the following sequence occurs:
- At power on, the ready light remains off for a short time.
- When ready light turns on, the Controller is ready for use.
B. Ready Light--Slow Flash:
- When a slow flash occurs, the Controller is processing the document.
C. Ready Light--Quick Flash:
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- When a quick flash occurs, the Controller has encountered an error
condition in processing the document. (See the Troubleshooting section
for possible error conditions and solutions.)
D. Ready Light--One Long + Two Short Flashes:
- When one long and two short flashes occur, either the Priport is off-line or
the Priport is still waiting to print copies off a new master which is
currently on the drum.
7.17 COMMONLY ASKED QUESTIONS
1. How far can I have the Controller from the computer?
- The official specification for parallel cables recommends a length not
greater than 10 feet (appr. 3 meters), however you can probably use a
cable up to 25 feet (appr. 8 meters) without encountering any line
communication problems.
- The official specification for serial cables recommends a length not
greater than 50 feet (appr. 16 meters), however you can probably use a
cable up to 100 feet (appr. 30 meters).
- The AppleTalk specification recommends a cable length of not greater
than 1000 feet (appr. 300 meters) which should not be exceeded.
2. How far can I have the Controller from the Priport?
- The official specification allows for a 10 foot (appr. 3 meter) cable. A 6
foot (appr. 2 meter) cable was supplied with the Controller, but you can
probably use a cable up to 20 feet (appr. 6 meters) if necessary. The
potential for line communication problems are greater the farther the
Priport is from the computer.
- The parallel port connection on the back panel of the Controller will
receive data from the computer as much as eight times faster than the
serial connection. However, because of the higher data transmission
rate, you are limited to a maximum parallel cable length of 25 feet (appr.
8 meters).
4. How many computers can you run from the Controller?
- Three. One IBM or compatible connected to the parallel port, one IBM or
compatible connected to the serial port, and one Apple Macintosh or
Macintosh network connected to the AppleTalk port.
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PCRIP-10
Priport
Controller
3. Which is faster--the serial port or the parallel port?
5. Will the Controller work with a laptop or notebook computer?
- Yes, all computers connect to the Controller as if it were a standard
computer printer.
6. Is any special wiring required for the Controller?
- No, it will work on 110 or 220 volt systems by using the appropriate power
cord.
7. How much RAM memory does the Controller have?
- It comes standard with 4 megabytes of RAM.
8. What if my file size is over 4 megabytes? Will the
Controller be able to process the file?
- Under most circumstances, the answer is yes, due to a process built into
the Controller called "power banding". If your files are very large, you
might want to consider upgrading to 16 megabytes of RAM. Please
contact your local Sales Representative for more information.
9. Can you add additional memory?
- Yes, the Controller can be upgraded from 4 megabytes to 16 megabytes
of RAM. Please contact your local Sales Representative for more details
on this upgrade.
10. Must you configure all software when you install the
Controller?
- Yes and no. The Configuration Program supplied with the Controller must
be installed on your computer in order for you to change any of the
factory settings. For example, the Controller comes preset in PostScript
mode with a US Letter (8 1/2" X 11") or A4 page size. If you wish to
switch to PCL-5 mode or to a different page size, you must use the
Configuration Program to make those changes. In order to output to the
Priport through the Controller, you need to select the appropriate printer
driver in your software application for the mode (PostScript or PCL-5)
and page size you wish to print.
11. Will the Controller work with Windows 3.1?
- Yes, as long as you select the appropriate printer driver for the page size
you need.
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12. Will the Controller work with all application software
programs?
- As there are no international software standards which apply to the over
10,000 software applications worldwide, it is impossible to give a
definitive answer for each and every program in the DOS, Windows and
Macintosh environments. We have tested and know that the most
popular software applications, MS Windows 3.1, WordPerfect, MS Word,
etc. work extremely well. The Controller is designed to emulate (act as if
it were in fact) a large variety of PostScript printers or a HP LaserJet III
for PCL-5 output. Therefore, if your software application allows you to
select either a PostScript printer or a HP LaserJet III, you should be able
to send files to the Priport through the Controller to produce documents.
13. Will the Controller work on a network?
- Yes, if the Controller is connected to a host computer. The computer
used as a host for the Controller can be the file server, a printer server or
any one of the network nodes. Other than the AppleTalk port for
Macintosh networks, there is no port on the Controller, at this time, which
allows for a connection directly to the network.
14. What fonts are built into the Controller?
- The 35 standard PostScript fonts plus the 8 standard Intellifont PCL-5
fonts.
15. Can you use other downloaded soft fonts with the
Controller?
- Yes, you can use downloaded soft fonts in both PostScript and PCL-5
compatibility modes. You should be aware that the amount of RAM the
soft fonts occupy may impact the processing speed.
- No, but you could buy a scanner and hook it directly to your computer.
While this process is simpler in the Macintosh environment, it is still a
very complex project in either the PC or Macintosh environment and
should be undertaken only by an expert computer user. When scanned
images are saved as graphic files, they can be included in documents
you create in various software applications.
17. Can you set the number of copies to print from the
computer?
- No, the number of copies to be printed must be set from the Priport
control panel. This was done intentionally so that you can check that the
correct paper and ink are in the Priport before printing.
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PCRIP-10
Priport
Controller
16. Can you reverse scan with the Controller and the Priport?
18. How important is the "Auto Cycle" key in the printing of a
job?
- It is important that the Priport print a minimum of one copy in addition to
the proof copy for each new master. Until at least one copy has been
printed, the Priport will not allow a new master to be created. Therefore,
we recommend that when using the Controller that you also use the
"Auto Cycle" mode to enable the system to clear itself and be ready for
the next print job.
19. What does the Diagnostic Port do?
- When the diagnostic plug used by the Customer Engineer is installed in
the Diagnostic Port and the Controller is turned on, the Priport will output
a Diagnostic Status page which includes Postscript font samples and
configuration information for the Controller. (See Appendix A.)
20. If I have a software or hardware question, who do I call?
- Your local sales/service organization should be contacted first.
7.18 TROUBLESHOOTING
The following are symptoms you might encounter and the appropriate
solution for each:
1. There is a quick flash of the ready light.
- An error condition has been detected in the Priport. First, check for a
loose or missing cable between the Controller and the Priport.
- Next, check the control panel of the Priport for a flashing master jam
indicator. Clear the jam and, if possible, print one proof copy from the
newly created master. If the image on the proof copy is complete, you
can print more copies. If the image is not complete, pust the reset button
on the Priport control panel and the Controller will resend the document
to the Priport to create a new master.
- If you are unable to print a proof copy, you will need to toggle the On Line
button off and back on again to clear the error and the Controller will
resend the document to create a new master.
2. There is no master making at all.
The Customer Engineer who installed the Controller should have tested both
the connection between the Controller and the Priport, the connection
between your computer and the Controller and the system as a whole.
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- If the Controller ready light is producing a quick flash, follow the steps
listed above to clear the error.
- If the Controller ready light is producing one long and two short flashes,
check to see if the Priport may be off-line. Put the Priport back on-line
and verify that the PCRIP-10 ready light has stopped flashing.
- If the Priport is not off-line, then the Priport is waiting to print from a new
master. You may either print one copy from the master currently on the
drum, or push the Priport’s on-line button off and then on again to clear
this condition.
- If you are sending PostScript files to the Controller, make sure that you
have the correct PostScript compatible printer selected as the output
printer within in your application software and the Controller has been
configured for PostScript mode.
- If none of the steps above have produced any master making, it is
possible that the PostScript file you are trying to print may be corrupted.
You can test for actual Postscript output by printing the Diagnostic Status
Page through the Configuration Program. If you can not successfully print
this page (which is a special PostScript compatible file), you should
contact your local service organization for help.
3. A new master is made, but only blank pages print out.
- Verify that the page size selected in the application software, the
Controller configuration and the Priport all match.
- Make sure that you have the correct printer selected in the application
software for either PostScript or PCL-5 mode.
- Check that the document being sent to the Controller is not blank.
- If you have followed all of the steps listed above and still get blank pages
as output, contact your local service organization.
- This symptom is usually the result of sending a PostScript file to a
Controller that is still configured in PCL-5 compatibility mode. Check to
make sure that you have the correct printer selected in the application as
well as that the Controller is in PostScript compatibility mode.
5. Part of the document image I can see on my monitor is missing
when it prints.
- Verify that the page size and the page orientation (portrait or landscape)
selected in the application software, the Controller configuration and the
Priport all match.
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PCRIP-10
Priport
Controller
4. My document prints out as unrecognizable text.
6. My Macintosh gives an error message which says
"Priport is not available on AppleTalk".
- Make sure that the Controller is powered on.
- If both an IBM or compatible and a Macintosh are connected to the
Controller, check to see if the Controller has been switched to PCL-5
mode for the IBM PC. If so, the Macintosh will be locked out until the
Controller is switched back to PostScript compatibility mode.
- If only one Macintosh is connected to the Controller, contact your local
sales/service organization for additional help.
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PCRIP-10
Priport
Controller
7.19 APPENDIX A - DIAGNOSTIC STATUS PAGE
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7.20 PARTS CATALOG
MODELS VT2105
ITEMS
PCRIP-10
481MIU
Controller Unit
PCRIP-10
(Type 1)
Interface Kit
205281
Support/Housing
479MIU
ass’y
(New style cabinet
must be used)
NOTE: Printer cable not
included.
INTERFACE KIT (TYPE 2)
ACCESSORIES
PART NO.
C544 1005
C544 1301
C544 1510
-C544 1500
C544 1100
DESCRIPTION
IC-Interface-AM27C512-150D
IC-Main-M27C 512-12F1
Controller Cable
Accessories
Interface Cable - Type 2
Interface Board
INDEX
6
7
8
9
10
11
12
13
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7-39
PART NO.
C544 2110
C544 2112
0313 0350B
0960 3008W
0960 4008W
C544 1600
1105 0042
C203 2031
DESCRIPTION
PCB Stud
Harness Support Bracket
Philips Pan Head Screw - M3x8
Philps Flange Screw - M3x8
Philps Flange Screw - M3x8
Flat Cable - N810
Wire Band
Main Board Spacer
C217
PCRIP-10
Priport
Controller
INDEX
1
2
3
4
5
6
C225
SERVICE MANUAL
TABLE OF CONTENTS
OVERALL MACHINE INFORMATION
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2. ESSENTIAL DIFFERENCES BETWEEN
THE VT1730 AND THE VT1800 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3. PRINTING PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4. MECHANICAL COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . . 1-7
5. DRIVE LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
6. ELECTRICAL COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . 1-9
7. ELECTRICAL COMPONENT LAYOUT. . . . . . . . . . . . . . . . . . . . . 1-11
DETAILED SECTION DESCRIPTIONS
1. PAPER FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
1.1 PAPER TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2. PAPER DELIVERY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1 OVERALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2 VACUUM UNIT DRIVE MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
3. IMAGE PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
3.1 IMAGE DENSITY SETTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
4. MASTER PLOTTING AND PRINTING AREA . . . . . . . . . . . . . . . . 2-5
5. TIMING CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
5.1 MASTER EJECT (TIMING CHART 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
5.2 ORIGINAL FEED/PLOTTING (TIMING CHART 2) . . . . . . . . . . . . . . . . . . . . . . 2-8
INSTALLATION
1. INSTALLATION REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.1 OPTIMUM ENVIRONMENTAL CONDITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.2 ENVIRONMENTS TO AVOID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
1.3 POWER CONNECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
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1.4 MINIMUM SPACE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
2. INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
SERVICE TABLES
1. MAINTENANCE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
2. LUBRICATION POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
2.1 FEED ROLLER BUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
2.2 TRANSPORT UNIT DRIVE GEAR BEARING . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
2.3 TRANSPORT UNIT GEARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
2.4 FEED ROLLER DRIVE GEARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
2.5 DRUM DRIVE GEARS AND CAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
2.6 DRUM FLANGE BUSHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
3. SPECIAL OPERATION MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
3.1 SKIP FEED MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
3.2 ECONOMY MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
3.3 QUALITY START MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4. INPUT/OUTPUT CHECK MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.1 ACCESS PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.2 DRUM FREE RUN MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.3 INPUT CHECK MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.4 OUTPUT CHECK MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
5. SERVICE TABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
5.1 TEST POINT TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
5.2 VARIABLE RESISTOR TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
5.3 DIP SWITCH TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
5.4 LED TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
5.5 FUSE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
C225
ii
SM
OVERALL MACHINE
INFORMATION
Configuration:
Desk top
Master Making Process:
Digital
Printing Process:
Full automatic one-drum stencil system
Image Mode:
Line/Photo
Original Type:
Sheet
Original Weight:
64 g/m2 ∼ 104.7 g/m2 (17.0 lb ∼ 27.9 lb)
Original Size:
Max:
Min:
216 mm x 356 mm (81/2" x 14")
90 mm x 140 mm (31/2" x 51/2")
Paper Size:
Max:
Min:
216 mm x 356 mm (81/2" x 14")
90 mm x 140 mm (31/2" x 51/2")
Paper Weight:
52 g/m2 ∼ 150 g/m2 (13.8 lb ∼ 39.9 lb
Bond paper)
Printing Area:
LG drum: 210 mm x 349.6 mm
(8.3" x 13.8") or less
Printing Speed:
70/100/130 cpm (3 settings)
First Copy Time:
28 seconds ± 2 seconds (Legal Drum)
Second Copy Time:
30 seconds ± 2 seconds (Legal Drum)
Leading Edge Margin:
5 mm ± 3 mm (0.2" ± 0.12")
SM
1-1
C225
Overall
Machine
Information
1. SPECIFICATIONS
Trailing Edge Margin:
1 mm ± 1 mm (0.04" ± 0.04")
Paper Feed Table Capacity:
500 sheets (80 g/m2, 20.0 lb)
Paper Delivery Table Capacity:
500 sheets (80 g/m2, 20.0 lb)
Master Eject Box Capacity:
More than 25 masters
ADF Original Capacity:
6 sheets or a 0.6 mm height
Weight:
55 kg (122 lb)
Power Source:
Power Consumption:
120 V, 60 Hz, more than 3.6 A
Master Making: Less than 0.22 kW
Printing:
Less than 0.22 kW
Dimensions:
(W x D x H)
[Tables closed]
692 mm x 612 mm x 440 mm
(26.2" x 24.1" x 17.3")
[Tables open]
1050 mm x 612 mm x 440 mm
(41.3" x 24.1" x 17.3")
Pixel Density:
300 dpi
Print Counter:
7 digits
Master Counter:
6 digits
Noise Emission:
Printing Speed
Operator position
Bystander position
70 rpm
less than 66 dB
less than 64 dB
100 rpm
less than 70 dB
less than 68 dB
130 rpm
less than 72 dB
less than 71 dB
The measurements are to be made in accordance with ISO 7779.
C225
1-2
SM
Optional Equipment:
Key Counter, Tape Dispenser, PCRIP-10
Controller with Interface Kit Type 2,
Controller Support/Housing Assembly.
Name
Thermal master
Size
Length: 125 m (410 ft)/roll
Width: 240 mm (9.5")
Ink
600 cc/pack
Tape for tape maker
35 m (114.8 ft)/roll
SM
1-3
Remarks
260 masters can be made per roll .
Storage Conditions:
–10 ∼ 40°C, 10 ∼ 90% RH
Storage Conditions:
–5 ∼ 40°C, 10 ∼ 90% RH
C225
Overall
Machine
Information
Consumables:
2. ESSENTIAL DIFFERENCES BETWEEN THE
VT1730 AND THE VT1800
No.
1
Item
Paper Delivery System
Remarks
The paper delivery system has been changed from a
delivery roller system to a vacuum transport system. Due
to this modification, 5 mm side margins are not required
for originals.
2
Paper Table Set Switch A magnetic switch has been added to detect whether or
not the paper table is in the paper feed position. Indicator
"B" will light when the paper table is in the low position.
3
Thermal Head
To minimize ink set-off, the shape of the thermal head
heating elements have been changed as shown below.
4
Paper Table Side
Fences
For easy side fence positioning, a rack and pinion
mechanism has been installed to allow the left and right
side fences to move together.
5
Master Eject Box
To prevent the used masters from dropping when the
customer takes out the master eject box, a master holder
has been added to the master eject box.
6
Paper Delivery Table
The delivery end fence and the side fences can be folded
inward when closing in the delivery table.
7
Master Eject Box
Capacity
The pressure for compacting the used master in the
master eject box has been increased. In addition, the
master eject box capacity has been increased from 15 to
25 used masters.
8
Economy Mode
If Economy mode is selected, the thermal head energy is
reduced by 15% (the pulse width is decreased).The
image density will be slightly lighter, and ink consumption
will be less than normal.
C225
1-4
SM
Item
Remarks
Exposure Glass Bracket To prevent the scanned original from being pushed out
by the next original, the shape of the exposure glass
bracket has been changed as shown below.
Overall
Machine
Information
No.
9
10
Original Feed Spring
Plate
To ensure proper feeding of thin paper, the angle of the
original feed spring plate has been changed.
11
Paper Feed Timing
To reduce noise which occurs when the paper hits the
2nd feed roller, the first paper feed length has been
reduced. (The buckle between the 1st and 2nd paper
feed rollers has been shortened.)
12
Skip Feed
A user can select from 2 to 9 rotations of the drum while
one sheet of paper is fed. This will increase the image
density.
13
Quality Start
14
Image Processing in
the "Darker 2" setting
The first print tends to be light. To increase the image
density of the first print, Quality Start mode can be
selected. In this mode, the first print (only) will be made
at 30 rpm.
In the VT1730, only the A/D conversion parameters are
changed when the image density setting is changed. This
does not change the density of solid black areas.
In the VT1800, if "Darker 2" is selected on the operation
panel, the thermal head energy is increased to 115% of
the normal setting. The solid black areas will become
darker.
SM
1-5
C225
3. PRINTING PROCESS
2
3
1
5
6
1. Master Ejecting:
C225
4
The machine will eject the used master
which is wrapped around the drum into
the master eject box.
2. Scanning:
The machine will scan the original using
the CCD, through the mirror and the lens,
while feeding the original.
3. Master Feeding:
The machine will convert the analog
signals from the CCD into digital signals
and will then send the signals to the
thermal head to make holes (plot) in the
master. The new master will then be
wrapped around the drum.
4. Paper Feeding:
The machine will feed the paper to the
drum.
5. Printing:
The pressure roller will press the paper
fed from the paper feed section against
the surface of the drum. This will transfer
the ink through the drum screen, the
master and onto the paper.
6. Paper Delivering:
The printed paper is separated from the
surface of the drum by the exit pawls and
the airknife. The separated paper is fed to
the delivery table by the transport belt and
the vacuum fan.
1-6
SM
28
1
29
2
3
4
5
6
7 8 9 10
11
27
12
26
13
25
14
24
15
23
22
1. Mirror
2. Original Feed Roller
3. Original Pressure Plate
4. Exposure Lamp
5. Exposure Glass
21
20
19
18
17
16. Friction Pad
17. 2nd Feed Roller
18. Doctor Roller
19. Press Roller
20. Ink Roller
6. Original Pick-up Roller
7. Original Friction Pad
8. Master Tension Roller
9. Platen Roller
10. Thermal Head
21. Exit Pawl
22. Transport Unit
23. Paper Delivery Table
24. Drum
25. Master Eject Box
11. Master Roll
12. Plotter Unit
13. Ink Pump
14. Paper Table
15. Paper Feed Roller
26. Master Eject Roller
27. CCD Unit
28. Original Exit Tray
29. Master Eject Unit
SM
16
1-7
C225
Overall
Machine
Information
4. MECHANICAL COMPONENT LAYOUT
5. DRIVE LAYOUT
3
2
5
4
6
7
8
9
1
10
11
12
18
17
16
15
14
13
1. Pump Drive Gear
10. Master Eject Motor
2. Ink Supply Motor
11. Master Clamper Motor
3. Platen Roller Gear
12. Master Clamper Drive Gear
4. Original Feed Motor
13. Transport Unit Drive Pulley
5. Original Pick-up Roller
14. 2nd Feed Motor
6. Original Feed Roller
15. Main Motor
7. Drum Drive Gear
16. 2nd Feed Roller Gear
8. Upper Master Eject Roller Gear
17. Paper Feed Roller Gear
9. Lower Master Eject Roller Gear
18. Master Feed Motor
C225
1-8
SM
6. ELECTRICAL COMPONENT DESCRIPTION
Feeds the master to the drum.
25
Master Eject
28
Main
29
Vacuum
32
2nd Feed
Sends the used master into the master eject
box.
Drives the paper feed, drum, printing and
paper delivery unit components.
Provides suction to ensure that the paper is
held firmly onto the transport belt.
Drives the 2nd feed roller.
35
Master Clamper
Open and closes the master clamper.
38
Air Knife
40
Pressure Plate
Generates the air flow used to separate the
paper from the drum.
Drives the pressure plate.
45
Original Feed
46
Master Cutter
Transports the original through the ADF unit
for scanning.
Cuts the master.
49
Ink Supply
Drives the ink pump to supply ink.
Pressure Release
Solenoid
Releases the press roller to apply printing
pressure.
Solenoid
31
Sensors
1
14
Detects when the plotter unit has run out of
master material.
Original Registration
Informs the CPU of the position of the
(Upper: light receiver, original. Also used to detect an original
Lower: light emitter) misfeed.
Feed Jam Timing
Determines the paper misfeed check timing.
15
Paper End
Detects if there is paper on the paper table.
16
Registration
Detects paper misfeeds.
17
Feed Start Timing
Determines the paper feed start timing.
18
Exit Jam Timing
Determines the master misfeed check timing.
19
Master Eject Position
Detects the master eject position of the drum.
26
Drum Master
30
Exit
Detects if there is a master wrapped around
the drum.
Detects paper misfeeds.
33
Master Eject
Detects used master misfeeds.
37
Full Master
Detects if the master eject box is full.
39
Pressure Plate H.P.
Detects the pressure plate home position.
48
Original Set
Detects if there is an original in the ADF unit
3
Master End
Switches
5
ADF Open
SM
Function
Overall
Machine
Information
Index No.
Name
Motors
11
Master Feed
Checks if the ADF cover is open.
6
Left Cutter
Determines the left limit position of the cutter.
9
Master Cut
Starts the cutter motor to cut the master.
13
Paper Table Set
21
Scanner Unit Open
Detects if the paper table is in the paper feed
position.
Checks if the scanner unit is open.
1-9
C225
Index No.
Name
22
Delivery Cover Open
23
Main
Turns the power on or off.
27
Master Eject Box
36
Master Clamper
47
Right Cutter
Checks if the master eject box is installed
correctly.
Detects the master clamper open/close
position.
Determines the right limit position of the
cutter.
Printed Circuit Board
4
Lamp Control
Controls the power to the exposure lamp.
8
Operation Panel
Interfaces the CPU with the operator.
12
Main
Controls all machine functions.
20
Power Supply
Provides power for all dc components.
24
Main Motor Control
Controls the main motor speed.
34
Noise Filter
41
CCD
42
A/D Conversion
Filters out electrical noise on the ac power
input lines.
Converts the reflected light from the original
into an electrical signal (analog).
Converts the analog signals from the CCD
into digital signals.
Counters
7
Print
10
Others
2
C225
Function
Checks if the delivery cover is open.
Master
Keeps track of the total number of prints
made.
Keeps track of the total number of masters
made.
Thermal Head
Plots (burns) the master by generating heat.
43
Paper Feed Clutch
44
Exposure Lamp
Transmits main motor drive to the paper feed
roller at the appropriate time.
Illuminates the original for exposure.
1-10
SM
Overall
Machine
Information
7. ELECTRICAL COMPONENT LAYOUT
SM
1-11
C225
DETAILED SECTION
DESCRIPTIONS
1. PAPER FEED
1.1 PAPER TABLE
[A]
Detailed
Section
Descriptions
[C]
[B]
[D]
[E]
The paper table side fences [A] must be adjusted to match the paper size.
To ensure correct paper positioning on the tray, the left and right side fences
will move as a unit because of the rack and pinion [B]. When the dial [C] is
turned, the side fences will move, changing the paper position on the table.
When the lever [D] is lowered and the paper table is in the no-paper feed
position, the magnetic switch [E] is de-activated. In this condition, the Print
Start key is disabled.
SM
2-1
C225
2. PAPER DELIVERY SECTION
2.1 OVERALL
[B]
[A]
[D]
[C]
The exit pawl [A] and the air knife [B] are used to separate the paper from
the drum. The paper is then transported to the delivery table by the transport
unit [C].
The reflective photosensor [D] is used to detect paper exit jams.
C225
2-2
SM
2.2 VACUUM UNIT DRIVE MECHANISM
Detailed
Section
Descriptions
[B]
[A]
[C]
[D]
The vacuum fan [A] will hold the separated paper against the transport belts
[B] to deliver the paper to the delivery table. The transport belts are driven by
the main motor through gears [C].
The exit sensor (reflective photosensor) [D], located on the vacuum unit, is
used to detect paper exit jams.
SM
2-3
C225
3. IMAGE PROCESSING
3.1 IMAGE DENSITY SETTING
The A/D conversion parameters (refer to page 2-43 of the VT1730 service
manual) and thermal head energy changes depend on the image density
selected on the operation panel.
The table below illustrates the relationships between the image modes,
parameters, and the thermal head energy.
VH (%) M1 (%) M2 (%) M3 (%) VL (%)
Shading Distortion Memory
Image Line Mode Lighter
Setting
Normal
Darker 1
Darker 2
Photo
Lighter
Mode
Normal
Darker 1
Darker 2
100
74.0
100
100
100
70.0
80.0
85.0
85.0
86.5
57.0
76.5
79.8
79.8
36.6
43.4
47.9
47.9
73.0
40.0
53.0
59.5
59.5
19.6
24.8
29.0
29.0
59.5
23.0
29.5
39.3
39.3
11.4
15.8
19.9
19.9
46.0
6.0
6.0
19.0
19.0
7.0
11.0
15.0
15.0
T/H
Energy
(%)
100
100
100
115
100
100
100
115
In the VT1730 model, the thermal head energy is always the same,
regardless of the image density setting. Only the A/D conversion parameters
are changed depending on the selected image density. Using this method,
the image density of solid black areas will not change even if a darker setting
is selected. This is because all of the pixel data will be the same after the
binary processing, if the area is purely black.
In the VT1800, when Darker 2 is selected, the A/D conversion parameters
are the same as those of Darker 1, but the thermal head energy is increased
to 115% of the normal thermal head energy. (This is done by changing the
pulse width.) As a result, the density of solid black areas will become darker.
C225
2-4
SM
4. MASTER PLOTTING AND PRINTING AREA
1. Length (Legal Drum)
Detailed
Section
Descriptions
Original
Master
Screen
Paper
(Shift : 0 mm)
Paper
(Shift : 15 mm)
Paper
(Shift : –15 mm)
SM
2-5
C225
2. Width
Original
Master
Screen
Paper
C225
2-6
SM
5. TIMING CHART
TIMING CHART 3 (Master Cut/Trial Print) is identical to that of VT1730
SM
2-7
C225
Detailed
Section
Descriptions
X = 64 pulses from the main motor encoder.
5.1 MASTER EJECT (TIMING CHART 1)
5.2 ORIGINAL FEED/PLOTTING (TIMING CHART 2)
C225
2-8
SM
INSTALLATION
1. INSTALLATION REQUIREMENTS
The installation location should be carefully chosen because the
environmental conditions greatly affect the performance of the machine.
Installation
1.1 OPTIMUM ENVIRONMENTAL CONDITIONS
Temperature —
Humidity —
SM
10 to 30°C
(50 to 86°F)
20 to 90 % RH
On a strong and level base.
The machine must be level within
5 mm (13/64") both front to rear
and left to right.
3-1
C225
1.2 ENVIRONMENTS TO AVOID
Locations exposed to direct
sunlight or strong light (more than
1,500 lux).
Dusty areas.
Areas with corrosive gases.
Locations directly exposed to cool air
from an air conditioner or reflected
heat from a space heater. (Sudden
temperature changes from low to
high or vice versa may cause
condensation within the machine.)
C225
3-2
SM
Securely connect the power cord
to a power source.
Voltage must not fluctuate more
than 10%.
Ensure that the wall outlet is
near the machine and easily
accessible.
Ensure the plug is firmly
inserted in the outlet.
Avoid multiwiring.
SM
Do not pinch the power cord.
3-3
C225
Installation
1.3 POWER CONNECTION
1.4 MINIMUM SPACE REQUIREMENTS
Place the machine near a power source, providing clearance as shown
below.
10 cm (4.0")
Paper
Feed
Table
Paper
Delivery
Table
61 cm
(24.0")
More than
70 cm
(27.6")
More than
60 cm
105 cm (41.3")
(23.7")
C225
More than
60 cm
(23.7")
3-4
SM
2. INSTALLATION PROCEDURE
1. Ensure that all the accessories listed below are received.
Installation
(1) Master Spool....................................................2
(2) Paper Feed Side Pad ......................................2
(3) Operating Instructions - English.......................1
(4) NECR ..............................................................1
SM
3-5
C225
[A]
2. Place the machine on a strong and level base.
NOTE: Use a sturdy desk, or something similar. The machine must be
level within 5 mm (0.2") both front to rear and left to right.
3. Remove all of the tape and string used to secure the covers and units.
Refer to the illustration above.
4. Open the paper feed tray. Remove the cushions [A] used to support the
paper feed table and scanner cover.
5. Firmly insert the plug in the wall outlet.
NOTE: Ensure that the wall outlet is near the machine and is easily
accessible.
6. Turn on the main switch.
C225
3-6
SM
7. Load paper as follows:
a. Open the paper feed table.
b. Press down the feed roller
pressure lever.
Installation
c. Place the paper on the
paper feed table.
d. Adjust the paper feed side
plates to match the paper size.
e. Lift the feed roller pressure
lever.
f. Ensure that the paper
feed side plates contact the
paper lightly.
SM
3-7
C225
8. Open the paper delivery table.
A. Move side plates to match the
print paper size.
B. Move the end fence to match
the print paper size.
9. Install the master roll as follows:
a. Insert both spools into the
new master roll.
b. Open the top cover.
c. Position the master roll. (Plastic
coated side down.)
d. Lift the pressure release
lever to release the platen
roller pressure.
C225
3-8
SM
e. Insert the leading edge of
the master roll under the
platen roller. Then rotate the
master roll counter clockwise.
f. Return the pressure release
lever to its original position.
g. Turn on the main switch.
Installation
h. Press the master cut button to
cut the leading edge of the
master roll.
i. Remove the cut-off portion of
the master roll.
j. Close the top cover.
SM
3-9
C225
10. Install the ink cartridge as follows:
a. Open the ink cover.
b. Press down the release
lever (green tab [A]).
Then pull out the ink
cartridge holder.
c. Remove the ink cap and install
the ink cartridge as shown in the
illustration.
d. Slide in the ink cartridge holder.
Then press the setting lever
(green tab), [B] until it clicks into
position.
e. Close the ink cover.
11. Make some test prints as follows:
a. Adjust the original guides to
match the original size.
b. Place an original face down
into the ADF.
c. Input the desired number of
prints using the number keys
and press the Master Making
key.
d. After one sheet of paper is
delivered, select the lowest print
speed (70cpm) and press the
Print Start key to make prints
at the lowest print speed until the
print image density stabilizes.
Use a test chart to check the
image density.
e. Check the copy image after the
image is stabilized (dry.)
C225
3-10
SM
SERVICE TABLES
1. MAINTENANCE TABLE
The following items should be maintained periodically. There are two sets of
intervals - one based on time and the other based on the print count. For
maintenance items with entries in both columns, use whichever occurs first.
Interval
Item
R
C
Drum and Ink Supply
Cloth Screen
Drum Drive Gears and
Cam
Drum Flange Bushing
Inside/Outside of the
Drum
Ink Pump Nozzle
SM
C
C
C
C
C
C
C
R
C
C
C
C
C
R
R
R
R
R
R
C
C
C
R
C
R
C
R
R
C
NOTE
Dry Cloth
Soft Cloth
Dry Cloth
Dry Cloth
Expected life
is 6K masters.
Alcohol
C Dry Cloth
R
R
R
R
R
R
R
R
R
Damp Cloth
R
R
Feed Roller Drive Gears
Registration/Exit Sensors
2nd Feed Roller
Transport Unit Drive Gear
Bearing
Transport Unit Gears
L: Lubricate A: Adjust
Time
Print Counter
EM
6M 1Y 2Y 3Y 300K 600K 1M 1.2M 2M
Scanner/Optics
Exposure Lamp
Original Pick-up Roller
Mirror/Reflector
Exposure Glass
Original Registration
Sensor
Original Friction Pad
Master Feed
Platen Roller
Master Eject Rollers
Drum Master Sensor
Paper Feed
Paper Feed Roller
Friction Pad
Press Roller
Paper Feed Roller
One-way Clutch
Paper Feed Clutch
Feed Roller Bushing
R: Replace
C
C
L
L
L
L
L
L
C
C
C
C
C
C
L
L
L
L
L
L
Motor Oil
(SAE #20)
Grease
(Albania #2)
Dry Cloth
Dry Cloth
Motor Oil (SAE
#20)
Grease
(Albania #2)
R
R
L
L
L
L
L
L
C
C
C
C
C
C
Grease
(Albania #2)
Motor Oil
(SAE #20)
Alcohol
Alcohol
4-1
C225
Service Tables
C: Clean
Item
Interval
Others
Timing Belt Tension
Press Roller Lock Lever
Position
C225
Time
Print Counter
EM
6M 1Y 2Y 3Y 300K 600K 1M 1.2M 2M
NOTE
A
A
4-2
SM
2. LUBRICATION POINTS
2.1 FEED ROLLER BUSHINGS
Service Tables
Lubricant: Motor Oil (SAE 30)
SM
4-3
C225
2.2 TRANSPORT UNIT DRIVE GEAR BEARING
Lubricant: Motor Oil (SAE 30)
2.3 TRANSPORT UNIT GEARS
Lubricant: Grease (Albania #2)
C225
4-4
SM
2.4 FEED ROLLER DRIVE GEARS
Service Tables
Lubricant: Grease (Albania #2)
2.5 DRUM DRIVE GEARS AND CAM
Lubricant: Grease (Albania #2)
SM
4-5
C225
2.6 DRUM FLANGE BUSHING
Lubricant: Motor Oil (SAE 30)
C225
4-6
SM
3. SPECIAL OPERATION MODES
3.1 SKIP FEED MODE
The operator can select the number of rotations of the drum between each
print cycle by the following procedure. The image will be darker and ink
consumption will be increased.
•
Hold down the Clear key and Stop key and select the number of
rotations of the drum before the sheet of paper is fed, use the Number
keys (1 to 9).
To cancel the skip feed mode, perform any of the procedures listed below.
•
Hold down the Clear key and Stop key, press the digit one key.
•
Hold down the Reset key and press the Clear key.
•
Turn the main switch off and on.
The operator can select the economy mode by the procedure listed below. If
the economy mode is selected, the thermal head energy (pulse width) will be
reduced by 15%. The image will be lighter and ink consumption will be
reduced.
•
Hold down the Clear key and Image Density key and press the Image
Mode key.
To cancel the skip feed mode, perform either of the procedures listed below.
•
Hold down the Reset key and press the Clear key.
•
Turn the main switch off and on.
3.3 QUALITY START MODE
The quality start mode will increase the image density of the 1st printed copy
after the proof. Normally, the first print after the proof print is made at the
selected copy speed (70, 100 or 130 rpm). If the Quality Start mode is
selected. The first print is made at a slower speed (30 RPM). To select the
quality start feature, perform the procedure listed below.
•
Hold down the Clear key, press the
1and 2keys.
To cancel the skip feed mode, perform either of the procedures listed below.
•
Hold down the Reset key and press the Clear key.
•
Turn the main switch off and on.
SM
4-7
C225
Service Tables
3.2 ECONOMY MODE
4. INPUT/OUTPUT CHECK MODE
The electrical components of the machine can be checked with this service
program. The input check mode will check the sensors and switches. The
output check mode will allow the technician to manually activate the
electrical devices, such as motors and solenoids.
4.1 ACCESS PROCEDURE
1. Turn on the main switch while holding down the Print Start, Stop, and
Clear keys.
2. The memory indicator will display "01", which indicates that the Input
Check mode is selected.
3. To select the Output Check mode, press the Memory/Class key. The
memory indicator will display "00".
4.2 DRUM FREE RUN MODE
1. Select either the Input or Output Check mode.
2. Select the Photo mode by pressing the Image Mode key.
3. To start the drum free run mode, press the Image Density key. The drum
rotation speed will depend on the Image Density selection. Refer to the
chart below.
Image Density Selection
Lighter
Normal
Darker
Darkest
Drum Speed
30 rpm
Stop
30 rpm
70/100/130 rpm (see Note)
NOTE: The drum speed can be changed by pressing the Speed key.
C225
4-8
SM
4.3 INPUT CHECK MODE
By entering a number listed below, the input level of each electrical device
can be checked. Depending on the device’s condition, the beeper will sound
and the machine status indicators will light.
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
SM
Device
Feed Start Timing Sensor
Feed Jam Timing Sensor
Exit Jam Timing Sensor
Master Eject Position
Sensor
Drum Master Sensor
Cover Safety
Master End Sensor
Master Cut Switch
Right Cutter Switch
Left Cutter Switch
Paper End Sensor
Registration Sensor
Exit Sensor
Master Clamper Switch
(Open)
Master Clamper Switch
(Close)
Original Set Sensor
Original Registration
Sensor
ADF Open Switch
Master Eject Sensor
Pressure Plate H.P. Sensor
Full Master Sensor
Paper Table Set Switch
DIP SW 103-1
DIP SW 103-2
DIP SW 103-3
DIP SW 103-4
DIP SW 103-5
DIP SW 103-6
DIP SW 103-7
DIP SW 103-8
Conditions when the beeper will sound
The sensor is actuated
The sensor is actuated
The sensor is actuated
The sensor is actuated
The sensor detects a master on the drum
The scanner unit is open
The sensor detects no master
The switch is pressed
The switch is actuated
The switch is actuated
The sensor detects no paper
The sensor detects paper
The sensor detects paper
The clamper is open
Service Tables
No.
1
2
3
The clamper is closed
The sensor detects an original
The sensor detects an original
The ADF is closed
The sensor is actuated
The sensor is actuated
The sensor is actuated
The switch is on
The switch is on
The switch is on
The switch is on
The switch is on
The switch is on
The switch is on
The switch is on
The switch is on
4-9
C225
4.4 OUTPUT CHECK MODE
You can individually turn on each of the electrical device listed below . The
procedure is as follows:
1. Select the output check mode. Refer to page 4-8.
2. Enter the number of the device to be tested.
3. Press the Print key to turn on the device.
4. To turn off the device, press the Clear key.
NOTE: Several of the are devices are only turned on for the duration
that the Print key is pressed (marked with *).
+ CAUTION:
1. Do not manually turn the drum or use the output modes (NO. 10 or
11) when the clamper is opened with the output mode.
2. Do not open the clamper when the drum is not at either the master
feed or eject drum stop positions. Use the drum stop functions
(No. 15 or 16) before opening the clamper.
No.
Device/Function
Thermal Head
1
2
3
4
5
6
7
8
Paper Feed Clutch *
Pressure Release Solenoid *
Master Eject Motor *
Ink Supply Motor *
Master Cutter Motor
Print Counter
Master Counter
9 Exposure Lamp
Master Clamper Motor (Open) *
10
11
Master Clamper Motor (Close) *
12 Master Feed Motor
13 Original Feed Motor
14 Shading Distortion Correction
Drum Stop (Master Exit)
15
16
Drum Stop (Master Feed)
Pressure Plate Motor *
17 (To Home Position)
C225
Note
Power is applied to the thermal head for 30
seconds after the Print key is pressed. While the
power is applied to the thermal head, the beeper
sounds.
The motor will stop when either of the cutter
switches is activated.
The counter is increased by one each time the
Print key is pressed.
The counter is increased by one each time the
Print key is pressed.
The motor will stop when the master clamper
switch detects the clamper open condition.
The motor will stop when the master clamper
switch detects the clamper closed condition.
The shading distortion memory is rewritten.
The drum will rotate and stop at the master eject
position.
The drum will rotate and stop at the master feed
position.
The motor will move the pressure plate towards to
the home position. The motor will stop when the
pressure plate H.P. sensor is actuated.
4-10
SM
No.
Device/Function
Pressure Plate Motor *
18 (To the Compression Position)
Turns on all of the indicators on the operation panel.
Service Tables
19 Air Knife Motor *
20 Vacuum Motor
21 Operation Panel Indicators
Note
The motor will move the pressure plate towards to
the master compression position. The motor will
stop when the full master box sensor is actuated.
SM
4-11
C225
5. SERVICE TABLES
5.1 TEST POINT TABLE
Main PCB
No
TP101
TP102
TP103
TP104
TP105
TP106
TP107
TP108
TP109
TP110
TP111
Usage
–12 V
Ink Level (Standard Pulse)
Ink Level (Detection Pulse)
GND–b
+12 V
+24 V
4MHz Clock
+38 V
+5 V
GND–a
Original Registration Sensor
A/D Conversion PCB
No
TP201
TP202
TP203
TP204
Usage
OS Signal (CCD Output)
VS Signal (Inverted and Amplified CCD Output)
GND
Scan Line Trigger
5.2 VARIABLE RESISTOR TABLE
Main PCB
No
VR101
VR102
Usage
Ink Detection Adjustment
Original Registration Sensor Adjustment
A/D Conversion PCB
No
VR201
Usage
White Level Adjustment
Power Supply PCB
No
VR301
VR401
C225
Usage
Factory Use Only (+5V Adjustment)
Thermal Head Voltage Adjustment
4-12
SM
5.3 DIP SWITCH TABLE
Main PCB
DPS 101
1
2
3
4
5
6
7
8
OFF
Outputs a Test Pattern
Dither Matrix (Screw Pattern)
Dither Matrix (Bayer Pattern)
Dither Matrix (8 x 8 Pattern)
Dither Matrix (6 x 6 Pattern)
Normal
Normal
Production Use Only
ON
Dither Matrix (4 x 4 Pattern)
Edge Emphasis in Photo Mode
Enable Data Noise Filter
Must be ON
Factory Setting of DPS 101
Bit
5
6
7
8
ON
ON
ON
ON
ON
OFF
OFF
ON
If more than two bits of the dip switch DPS 101 are in the OFF position, an
image will not be produced.
DPS 102
1
Not Used
2
OFF
OFF
OFF
OFF
ON
ON
ON
ON
DPS 102
3
OFF
OFF
ON
ON
ON
ON
OFF
OFF
SM
4
OFF
ON
OFF
ON
ON
OFF
ON
OFF
Leading Edge Registration Adjustment
+2.4 mm
+1.6
+0.8
0 (Factory Setting)
–0.8
–1.6
–2.4
–3.2
4-13
C225
Service Tables
Bit
1
2
3
4
1
OFF
OFF
OFF
OFF
ON
ON
ON
ON
DPS 103
2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
DPS103
4
OFF
OFF
ON
ON
DPS 103
6
7
8
5
OFF
ON
OFF
ON
3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Vertical Magnification
+1.75%
+1.25
+0.75
0 (Factory Setting)
–0.75
–1.25
–1.75
–2.25
Description
Trailing Edge Erase Margin Adjustment
+1mm
+2 mm
+3 mm
–1mm
OFF
Normal
LG version
Normal
ON
Enable Key Counter Operation
A4 version
Print and master counters do not change.
5.4 LED TABLE
Main PCB
LED #
101
102
OFF
ON
Sufficient Ink
During Paper Feed
Insufficient Ink
–
5.5 FUSE TABLE
Main PCB
FUSE #
Rated
Current
Voltage
101
630 mA
24 V
102
4A
38 V
C225
Protect
Device
Master Cutter, Master Clamper, and Pressure Plate
Motors
Air Knife Motor
4-14
SM
TECHNICAL SERVICE BULLETINS
BULLETIN NUMBER:
VT1730-001
APPLICABLE MODEL: VT1730
9/15/93
SUBJECT: PARTS CATALOG UPDATE
GENERAL:
The following Parts Updates are being issued to update all Ricoh VT1730 Parts Catalogs. This informa
tion
should be incorporated into all existing Ricoh VT1730 Parts Catalog documentation.
•
UPDATE NO. 1 - FRICTION PAD - To facilitate servicing, the friction guide plate has been added to
the friction pad assembly. The assembly now consists of the friction pad, the
friction pad base and the friction guide plate. Also, the friction pad base is no
longer available as a service part.
Friction Pad Assembly
Friction Guide Plate
Friction Pad
Friction Pad Base
REFERENCE
OLD PART NO. NEW PART NO.
C2175080
C2175090
C2175088
DESCRIPTION
QTY
INT
PAGE
ITEM
Friction Pad Assembly
1➝1
1
13
36
Friction Pad Base
1➝0
13
23
UNITS AFFECTED:
All VT1730 priports manufactured after Serial Number C3223030001 will have the new style friction pa
d
assembly installed during production.
INTERCHANGEABILITY CHART:
0
OLD and NEW parts can be used in both OLD and
NEW machines.
2
NEW parts CAN NOT be used in OLD machines.
OLD parts can be used in OLD and NEW machines.
1
NEW parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
OLD parts CAN NOT be used in NEW machines.
NEW parts CAN NOT be used in OLD machines.
3/S
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured aft er the S/N cut-in or
previously modified, use the new part numbers individually.
Continued...
Tech Service Bulletin No. VT1730-001
Page 2 of 2
•
UPDATE NO. 2 - MASTER EJECT SENSOR - To insure that the master eject sensor does not fail
to detect a properly transported master, a cutout [A] has been added to the eject
unit guide plate and the length of the sensor actuator has been increased as
shown below.
Master Exit Sensor
New
Old
Guide Plate - Eject Unit
[A]
REFERENCE
OLD PART NO. NEW PART NO.
DESCRIPTION
QTY
INT
PAGE
ITEM
C2173561
C2173565
Guide Plate - Eject Unit
1➝1
3/S
25
3
C2178445
C2178446
Photointeruptor - Master Eject
1➝0
3/S
25
14
UNITS AFFECTED:
All VT1730 priports manufactured after Serial Number C3223030001 will have the new style master ejec
t
sensor and eject unit guide plate installed during production.
BULLETIN NUMBER:
VT1730-002
APPLICABLE MODEL: VT1730
10/20/93
SUBJECT: FIELD SERVICE MANUAL - INSERT
GENERAL:
The Field Service Manual page(s) listed below must be replaced with the page(s) supplied. Each bulle
tin
package contains 2 sets of replacement pages.
PAGES:
The revised areas have been highlighted by an arrow.⇒
• 2-28
Additional Information
• 4-2
Additional Information
• 4-11
Additional Information
• 5-31
Additional Information
BULLETIN NUMBER:
VT1730-003
APPLICABLE MODEL: VT1730
10/20/93
SUBJECT: ANTISTATIC BRUSH
SYMPTOM:
Master feed jams.
CAUSE:
The Antistatic Brush [A] interferes with master transportation.
SOLUTION:
In the field it is difficult to correctly position the Antistatic Brush [A] on the Inner Cover [B],the two parts have
been combined into the Antistatic Brush Assembly [C]. The Antistatic Brush Assembly has been registe
red
as a service part in place of the Inner Cover.
NOTE: The position of the brush in the Antistatic Brush Assembly has been raised slightly. Even if the
antistatic brush does not contact the master surface, it will still remove electrostatic charges on the
master.
[C]
[A]
[B]
REFERENCE
OLD PART NO. NEW PART NO.
C2174068
C2174064
DESCRIPTION
QTY
Inner Cover
1➝0
Antistatic Brush Assembly
0➝1
INT
1
PAGE
ITEM
17
13
17
13
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3223060020 will have the new Antistatic Brush
Assembly installed during production.
BULLETIN NUMBER:
VT1730-004
APPLICABLE MODEL: VT1730
10/20/93
SUBJECT: PARTS CATALOG UPDATES
GENERAL:
The following VT1730 parts updates should be incorporated into all existing VT1730 Parts Catalog
documentation.
•
UPDATE NO. 1 - ADF FRICTION PAD - The following modifications will ensure smooth original
feed while preventing stream feeding of the 1st and 2nd originals:
1. The angle of the separation spring plate [A] has been changed from 30.5
° to 24°. Also, the
position of the spring plate has been shifted to the left by changing the screw hol
e positions.
2. Original Guide Mylars [B] have been installed on the upper guide plate to ensure the
original
registration sensor can detect the gap between the trail edge of the 1st original nd
a the lead
edge of the 2nd original.
[B]
Friction Pad
Friction Pad Assembly
5mm ➝ 6.5mm
30.5° ➝ 24°
[A]
10 ± 1
0 ~ 1mm
0 ~ 1mm
Upper Guide Plate
NOTE: To facilitate service, the ADF friction pad assembly (which includes the ADF friction pad) has been
registered as a service part in place of the separation spring plate [A].
INTERCHANGEABILITY CHART:
0
OLD and NEW parts can be used in both OLD and
NEW machines.
2
NEW parts CAN NOT be used in OLD machines.
OLD parts can be used in OLD and NEW machines.
1
NEW parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
OLD parts CAN NOT be used in NEW machines.
NEW parts CAN NOT be used in OLD machines.
3/S
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured aft er the S/N cut-in or
previously modified, use the new part numbers individually.
Continued...
Tech Service Bulletin No. VT1730-004
Page 2 of 5
REFERENCE
OLD PART NO. NEW PART NO.
C2173014
C2173027
C2173068
* DENOTES NEW ITEM
DESCRIPTION
QTY
Separation Spring Plate
1➝0
ADF Friction Pad Assembly
0➝1
Original Guide Mylar - 33 x 15
0➝1
INT
1
PAGE
ITEM
9
5
9
5
9
19 *
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3223060001 will have the style ADF Friction Pa
d
Assembly and Original Guide Mylars installed during production.
•
UPDATE NO. 2 - EJECT UNIT RIGHT SIDE PLATE - To reduce noise from the master eject motor,
two insulators [A] and two bushings [B] have been inserted between the pressure
motor and the right side plate as illustrated below. Due to this modification, the
two screws fixing the motor have been changed from 3mm to 4mm. Also, to
maintain the correct position between the pressure plate gear and the worm gear,
the configuration of the right side plate has been changed.
3mm ➝ 4mm
Right Side Plate
[B]
[A]
22.7mm ➝ 21.1mm
Worm Gear
Pressure Motor
REFERENCE
OLD PART NO. NEW PART NO.
C2173511
DESCRIPTION
QTY
INT
PAGE
ITEM
C2173516
Right Side Plate - Eject Unit
1➝1
3/S
25
26
C2173591
Insulator
0➝2
3/S
25
29 *
07073016B
Bushing - 3 x 1.6
0➝2
3/S
25
111 *
Philips Pan Head Screw-M3 x 3 n ➝ n-2
3/S
25
107
Philips Pan Head Screw-M3 x4 n ➝ n+2
3/S
25
110
08011135
03130040W
* DENOTES NEW ITEM
Continued...
Tech Service Bulletin No. VT1730-004
Page 3 of 5
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3223050001 will have the noise reduction
modifications installed during production.
UPDATE NO. 3 MAIN PCB - To extend the range of the original registration sensor adjustment a variable resistor on
the
main board has been changed from 200Ω to 1K Ω. The part number for the main PCB (C2178002) remains
the same.
VR102
200 Ω ➝ 1K Ω
Main PCB
REFERENCE
OLD PART NO. NEW PART NO.
16018185
16018137
DESCRIPTION
QUANTITY
PAGE
ITEM
Resistor - 200 Ω 0.5W
1➝0
43
212
Variable Resistor - 1K Ω
0➝1
43
212
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3223030001 will have the modified Main PCB
installed during production.
•
UPDATE NO. 4 - AIR KNIFE MOTOR - To reduce noise, a rubber base [A] and two bushings [B]
have been added to the air knife motor. Due to this modification, the two screws
[C] fixing the motor have been changed from 6mm to 8mm.
Continued...
Tech Service Bulletin No. VT1730-004
Page 4 of 5
[C]
Air Knife Blower Motor
[B]
[A]
REFERENCE
OLD PART
NO.
C2178425
NEW PART
NO.
DESCRIPTION
QTY
INT
PAGE
ITEM
C2178424
Blower - DC 38V 20W
1➝1
3/S
33
2
07074025
Bushing - 4 x 2.5
0➝2
3/S
33
109 *
Philips Screw with Flat Washer M3 x 6
n ➝ n-2
3/S
33
106
Philips Screw with Flat Washer M3 x 8
0➝2
3/S
33
110 *
09513006W
09513008W
* DENOTES NEW ITEM
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3223060001 will have the Air Knife Motor noise
reduction modifications implemented during production.
•
UPDATE NO. 5 - PARTS CATALOG CORRECTIONS - Please correct your Parts Catalog as
follows:
1. Part Number Correction
REFERENCE
INCORRECT
PART NO.
54032075
CORRECT
PART NO.
50700346
DESCRIPTION
Stepped Screw
QTY USED
PAGE
ITEM
2
7
31
Continued...
Tech Service Bulletin No. VT1730-004
Page 5 of 5
2. Correct index number 36 on page 30 as shown below.
39
40
3. Delete the following item.
REFERENCE
PART NUMBER
DESCRIPTION
QTY USED
PAGE
ITEM
55066549
Spring Etching Clutch
2
31
36
4. Add the following items.
REFERENCE
PART NUMBER
DESCRIPTION
QTY USED
PAGE
ITEM
C2175530
Pressure Release Spring
1
31
39 *
Link Spring
1
31
40 *
55076144
* DENOTES NEW ITEM
BULLETIN NUMBER:
VT1730-005
APPLICABLE MODEL: VT1730
10/20/93
SUBJECT: PAPER FEED PRESSURE
SYMPTOM:
Paper misfeeds occur when 500 sheets of standard paper are placed on the paper table.
CAUSE:
Insufficient paper feed roller pressure.
TEMPORARY COUNTERMEASURE:
Advise Key Operators to change the position of the pressure adjustment levers, as shown below, to crease
in
paper feed pressure.
Pressure
Adjustment
Levers
NOTE: Since August ’93 , the pressure adjustment levers have been set in the lower position (stronger
pressure) during production.
PERMANENT COUNTERMEASURE:
Due to the remote possibility of multi-sheet feeding after adjustment of the pressure levers as desc
ribed
above, more suitable tension for the feed pressure springs is being developed.
BULLETIN NUMBER:
VT1730-006
APPLICABLE MODEL: VT1730
03/22/94
SUBJECT: MASTER CLAMPER CAM
SYMPTOM:
The master is creased around the drum.
CAUSE:
Insufficient pressure applied to the tension roller.
SOLUTION:
The tension of the two springs (Lock Springs) that apply pressure to the tension roller has been inc
reased.
Due to the increased spring tension, the shape of the Clamper Cam has been changed to ensure the mas
ter
clamper opens properly.
Clamper Cam
Lock Spring
REFERENCE
OLD PART NO. NEW PART NO.
DESCRIPTION
QTY
INT
PAGE
ITEM
C2003106
C2174028
Lock Spring
2➞2
3/S
19
4
C2174556
C2174504
Clamper Cam
1➞1
3/S
21
13
UNITS AFFECTED:
All VT1730 priports manufactured after Serial Number C3223080001 will have the new style Lock Spring
s
and Clamper Cam installed during production.
BULLETIN NUMBER:
VT1730-007
APPLICABLE MODEL: VT1730
04/04/94
SUBJECT: PARTS CATALOG CORRECTION
GENERAL:
Please correct your parts catalog as follows:
1. Part number correction
REFERENCE
INCORRECT PART
NUMBER
54032075
CORRECT PART
NUMBER
50700346
DESCRIPTION
Stepped Screw
PAGE
ITEM
7
31
2. Parts not listed
21
21
20
This illustration is found
on page 36
REFERENCE
PART NUMBER
C2053150
C2072005
*DENOTES NEW ITEM
DESCRIPTION
QTY
PAGE
ITEM
Seal - Large
1
37
20*
Seal - 30
2
37
21*
BULLETIN NUMBER:
VT1730-008
APPLICABLE MODEL: VT1730
04/15/94
SUBJECT: PARTS CATALOG UPDATES
GENERAL:
The following Parts Updates are being issued for all VT1730 Parts Catalogs. This information should
be
incorporated into all existing VT1730 Parts Catalog documentation.
•
UPDATE NO. 1 - NON-REFLECTIVE SHEET - External light may signal a false misfeed at the exit
sensor as shown below. To minimize this, a non-reflective sheet has been added
on the air knife duct.
Air Knife Duct
External
Light
Non-reflective
Sheet
0 ~ 1mm
1 ~ 3mm
REFERENCE
PART NUMBER
C2176031
* DENOTES NEW ITEM
DESCRIPTION
Non-reflective Sheet
QTY
PAGE
ITEM
0➞1
33
27*
UNITS AFFECTED:
All VT1730 priports manufactured after Serial Number C3223110001 will have the non-reflective sheet
installed during production.
INTERCHANGEABILITY CHART:
0
OLD and NEW parts can be used in both OLD and
NEW machines.
2
NEW parts CAN NOT be used in OLD machines.
OLD parts can be used in OLD and NEW machines.
1
NEW parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
OLD parts CAN NOT be used in NEW machines.
NEW parts CAN NOT be used in OLD machines.
3/S
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured aft er the S/N cut-in or
previously modified, use the new part numbers individually.
Continued...
Tech Service Bulletin No. VT1730-008
Page 2 of 2
•
UPDATE NO. 2 - MASTER GUIDE MYLAR - There are two positions for the thermal head release
lever: one is to set the master and the other is to remove the platen roller. If an
operator mistakenly uses the roller removal position for the master set, the
leading edge of the master tends to hit the flexible master guide as shown below.
As a result, after the master cut button is pressed, the master will wrinkle and
wrap around the platen roller. To ensure the master feeds smoothly, a strip of
mylar has been added on the thermal head.
Master Guide Mylar
Platen Roller
Master Roll
Thermal Head
Flexible
Master
Guide
Thermal Head
Thermal Head
(Master Set Position)
(Roller Removal Position)
Master Guide
Mylar
0 ~ 1mm
9 ~ 11mm
Master Guide Mylar
REFERENCE
PART NUMBER
C2174035
DENOTES NEW ITEM
DESCRIPTION
Master Guide Mylar
QTY
PAGE
ITEM
0➞1
19
29*
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3223120001 will have the new Master Guide Myla
r
installed during production.
•
UPDATE NO. 3 - PARTS CATALOG CORRECTION - Please correct your Parts Catalog as follows:
REFERENCE
INCORRECT
PART NUMBER
CORRECT
PART NUMBER
DESCRIPTION
PAGE
ITEM
C2174026
C2174025
Thermal Head Base
19
22
55066150
C2174028
Lock Spring
19
23
BULLETIN NUMBER:
1730-009
APPLICABLE MODEL: VT1730
05/24/94
SUBJECT: PARTS CATALOG UPDATE
GENERAL:
To facilitate assembly, the ADF friction pad spacers [A] have been changed from two washers to a thi
n
rectangular plate [B]. The spacers [A] had been installed from the first production, although they ewre not
listed in the parts catalog. This information should be incorporated into all existing VT1730 Parts
Catalog
documentation.
[A]
[B]
ADF Friction Pad
REFERENCE
NEW PART NUMBER
C2173026
* DENOTES NEW ITEM
DESCRIPTION
Spacer - 0.5 x 13 x 46
QTY
PAGE
ITEM
0➝1
9
20*
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3223090001 will have the new style spacer inst
alled
during production.
INTERCHANGEABILITY CHART:
0
OLD and NEW parts can be used in both OLD and
NEW machines.
2
NEW parts CAN NOT be used in OLD machines.
OLD parts can be used in OLD and NEW machines.
1
NEW parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
OLD parts CAN NOT be used in NEW machines.
NEW parts CAN NOT be used in OLD machines.
3/S
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured aft er the S/N cut-in or
previously modified, use the new part numbers individually.
BULLETIN NUMBER:
VT1730-010
APPLICABLE MODEL: VT1730
08/02/94
SUBJECT: MASTER EJECT JAMS
SYMPTOM:
1. Frequent master eject jams at location‘‘F’’.
2. The master wraps around the upper and/or lower master eject rollers.
3. ‘‘F’’ jam cannot be reset because the actuator of the master eject sensor is caught under
the pressure plate.
CAUSE:
There are 4 ribs to guide the ejected master in the Master Eject Unit. There is a small gap between
the lead
edge of the ribs and the guide plate. If the gap is too big, the middle part of the master tends to
rub against
the ribs as the pressure plate moves to compress the master in the eject box.
Ribs
Guide Plate
OK
Gap
NG
1st Master Jammed
If no jam is detected by the machine after the above
situation has occurred, the machine will carry out the next
master eject. However, the next ejected master interferes
with the master caught by the ribs and is stopped just
behind the Eject Rollers. As a result, an‘‘F’’ jam
is indicated.
Also, if there is no space for the master to proceed (due to
the previous master jam), the master wraps around the
Eject Roller. If the master is stopped on the Master Eject
Sensor, the sensor actuator remains pushed down while
the pressure plate is in motion. After the pressure plate
returns to its home position, the sensor actuator is trapped
under the plate. The result is an‘‘F’’ jam indication that
cannot be reset.
Eject Roller
2nd Master Jammed
Continued...
Tech Service Bulletin No. VT1730-010
Page 2 of 2
FIELD COUNTERMEASURE:
Guide Mylar - 15 X 33mm
A mylar strip, the Guide Mylar - 15 x 33 mm
has been registered as a service part. Install the
mylar strips on the lead edge of the 4 ribs to
cover the gap as shown.
NOTE: 4 mylars are required for one unit.
Upper Eject Roller
Guide Mylar - 15 X 33mm
PRODUCTION COUNTERMEASURE:
The ribs fixed (welded) to the guide plate have been
changed as shown to prevent any gap at the leading
edge.
A slot has been added in the
Guide Plate as shown
A new style Rib is used
REFERENCE
OLD PART NO. NEW PART NO.
C2179500
C2173561
C2173567
* DENOTES NEW ITEM
DESCRIPTION
QTY
PAGE
ITEM
Guide Mylar - 15 X 33mm
4
25
30*
Guide Plate - Eject Unit
1
25
3
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C322406XXXX will have the new style Eject Unit
Guide Plate and Guide Mylar installed during production.
BULLETIN NUMBER:
1730-011
APPLICABLE MODEL: VT1730
05/12/95
SUBJECT: PARTS CATALOG UPDATES
GENERAL:
The following Parts Updates are being issued for all VT1730 Parts Catalogs. This information should
be
incorporated into all existing VT1730 Parts Catalog documentation.
•
UPDATE NO. 1 - FEED PRESSURE SPRINGS - Paper misfeeds may occur when the Pressure
Adjustment Levers are in the upper position (the weak paper feed pressure
position) and 500 sheets of standard copy paper are set on the paper tray. To
ensure proper paper feed when the weak pressure position is selected, two
springs have been added. To connect the springs, holes and cutouts have been
added to the Paper Table Stay and Feed Pressure Lever Holder as shown below.
NOTE: The factory setting for the pressure levers has been changed to the upper position.
New holes and cutouts
Paper Table Stay
Feed Pressure Lever Holder
New hole and cutout
New hole and cutout
REFERENCE
OLD PART NO. NEW PART NO.
DESCRIPTION
QTY
INT
PAGE
ITEM
C2175021
C2175023
Paper Table Stay
1
1
1
15
15
C2175069
C2175065
Holder - Paper Pressure Lever
2
2
1
15
27
Feed Pressure Spring - 135mm
0
2
15
35 *
C2175063
* DENOTES NEW ITEM
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3224080001 will have these modifications insta
lled
during production.
INTERCHANGEABILITY CHART:
0
OLD and NEW parts can be used in both OLD and
NEW machines.
2
NEW parts CAN NOT be used in OLD machines.
OLD parts can be used in OLD and NEW machines.
1
NEW parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
OLD parts CAN NOT be used in NEW machines.
NEW parts CAN NOT be used in OLD machines.
3/S
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured aft er the S/N cut-in or
previously modified, use the new part numbers individually.
Continued...
Tech Service Bulletin No. 1730-011
Page 2 of 2
UPDATE NO. 2 -
SIDE FENCE PAD CUSHION - To ensure that the Fence Pads fit securely on the
Side Fences, the Cushion (C2175017) has been added to each Side Fence as
shown below.
Side Fence Pad
Cushion - 20 x 35
REFERENCE
OLD PART NO. NEW PART NO.
C2175014
C2175019
C2175017
* DENOTES NEW ITEM
DESCRIPTION
QTY
Side Fence Pad
2
2
Cushion - 20 x 35
0
2
INT
PAGE
ITEM
0
15
7
15
36 *
NOTE: The new Side Fence Pad (C2175019) includes the Cushion (C2175017).
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3224070001 will have these modifications insta
lled
during production.
•
UPDATE NO. 3 - MAIN BOARD ROM - The Main Control Board ROM has been changed to enable
the installation of the Interface Unit - 10 Type 2.
NOTE: For machines which are not fitted with the Interface Unit - 10 Type 2, the old and new ROMs are
interchangeable. Also, the part number for the Main Control Board remains the same although the
suffix has been advanced from R to S.
For machines with the Interface Unit - 10 Type 2 installed, step 4 of the installation procedure is no
longer required.
REFERENCE
OLD PART NO. NEW PART NO.
C2178005
C2178015
DESCRIPTION
QTY
PAGE
ITEM
IC - TMS27C512-15JL
1
0
35
15
IC - M27C512-12F1
0
1
43
1
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3224080001 will have the new style Main Contro
l
Board/ROM installed during production.
BULLETIN NUMBER:
1730-012
APPLICABLE MODEL: VT1730
05/12/95
SUBJECT: PRESSURE PLATE HEIGHT POSITION
SYMPTOM:
Old Stop Position
The trailing edge of the ejected master is caught by the lower eject rollers.
CAUSE:
The Pressure Plate stop position is too low.
Ejected Master
PRODUCTION COUNTERMEASURE:
To allow the Pressure Plate to raise slightly higher before stopping, the
feeler on the Pressure Plate, which is detected by the Pressure Plate
Home Position Sensor, has been enlarged as shown below (left).
FIELD COUNTERMEASURE:
New Stop Position
Enlarge the feeler on the Pressure Plate by attaching a piece of mylar onto
the feeler as shown below (right).
NOTE: 1. The mylar cannot be transparent as the Pressure Plate Home Position Sensor is a photoreflective type sensor.
2. The size of the mylar must not exceed the dimensions indicated in the illustration. If the mylar
is too large, the Pressure Plate will interfere with the transportation. of the ejected master
Pressure Plate Home
Position Sensor
Enlarged Feeler
10 mm
Mylar
6 mm
12 mm
REFERENCE
OLD PART NO. NEW PART NO.
C2173551
C2173556
DESCRIPTION
Pressure Plate
QTY
1
1
INT
PAGE
ITEM
1
25
4
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3224120001 will have this modification install
ed
during production.
TECHNICAL SERVICE BULLETIN
CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
VT1730/1800 - 013
02/21/96
APPLICABLE MODEL: VT1730
COPY QUALITY
GENERAL:
The ROM on the Main Board has been changed to enable the use of the PCRIP-10 Controller with the
VT1730. This information should be incorporated into all existing VT1730 Parts Catalog documentation
.
NOTE: For machines which are not fitted with the PCRIP-10 Controller, the old and new ROMs are
interchangeable.
OLD PART NO. NEW PART NO.
C2178015
C2178016
DESCRIPTION
IC - M27C512-12F1
PAGE
ITEM
1→1
35
43
15
1
PAPER PATH
QTY
ELECTRICAL
REFERENCE
MECHANICAL
Note: This copy intended as master of original
for reproduction of additional bulletins.
SUBJECT: MAIN BOARD ROM
UNITS AFFECTED:
FSM
All VT1730 Priports manufactured after Serial Number C3225040001 will have the new style ROM install
ed
during production.
PARTS
OTHER
TECHNICAL SERVICE BULLETIN
CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
VT1730/1800 - 014
02/21/96
APPLICABLE MODEL: VT1730/1800
INK PUMP IMPROVEMENT
Packing
COPY QUALITY
SYMPTOM:
Not all of the ink is supplied from the ink cartridge.
CAUSE:
The small ball, which is used as a valve, is not pushed back
properly.
Valve
Spring Added
MECHANICAL
Socket
PRODUCTION COUNTERMEASURE:
A spring has been added inside the ink pump to ensure the ball is pushed back as it should be.
REFERENCE
PART NUMBER
DESCRIPTION
QTY
PAGE
ITEM
Pump Spring - 13mm
1
33
28*
C2004827
Packing
1
33
29*
Pump Rubber
1
33
30*
C2004826
* DENOTES NEW ITEM
PAPER PATH
C2244715
ELECTRICAL
Note: This copy intended as master of original
for reproduction of additional bulletins.
SUBJECT:
UNITS AFFECTED:
FSM
All VT1800 Priports manufactured from December ’95 (C341512XXXX) will have the Pump Spring added
during production. The VT1730 is no longer in production.
FIELD COUNTERMEASURE:
Install the Pump Spring (C2244715) after removing the socket (2 screws).
PARTS
NOTE: 1. When you remove the socket, ink will leak out. Make
sure to place absorbent material under the work area
prior to disassembling the ink pump.
3. The pump rubber (C2004826) is used to ensure that the
nozzle of the ink cartridge tightly contacts the pump
socket. Make sure that this part is not dislocated. The
pump rubber used on the VT1730 and other later models
is adhered by glue, however, it is not adhered on the
older models.
OTHER
2. There is a packing (gasket) (C2004827) between the
socket and the housing (see illustration above). If it is
damaged, you may need to replace the packing,
however, this normally is not necessary.
Pump Rubber
TECHNICAL SERVICE BULLETIN
CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
VT1730/1800 - 015
03/29/96
APPLICABLE MODEL: VT1800
COPY QUALITY
GENERAL:
The Field Service Manual page(s) listed below must be replaced with the page(s) supplied. Each bull
etin
package contains 1 set of replacement pages.
PAGES:
The revised areas have been highlighted by an arrow ⇒
Updated Information
Thermal Head Removal Procedure
ELECTRICAL
• 5-15, 5-16
MECHANICAL
Note: This copy intended as master of original
for reproduction of additional bulletins.
SUBJECT: FIELD SERVICE MANUAL - INSERT
PAPER PATH
FSM
PARTS
OTHER
TECHNICAL SERVICE BULLETIN
CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
VT1730/1800 - 016
04/05/96
APPLICABLE MODEL: VT1730
COPY QUALITY
GENERAL:
The following Parts Updates are being issued for all VT1730 Parts Catalogs. This information should
be
incorporated into all existing Parts Catalog documentation.
•
UPDATE NO. 1 - PARTS CATALOG CORRECTION - Please add the following corrections to your
parts catalog.
Exit Guide Plate Assembly
MECHANICAL
Reflector added
ELECTRICAL
Note: This copy intended as master of original
for reproduction of additional bulletins.
SUBJECT: PARTS CATALOG UPDATES
REFERENCE
INCORRECT
PART NO.
CORRECT
PART NO.
Philips Counter Sunk Screw - M3 X 6
2→0
7
107
03230100Z
Philips Counter Sunk Screw - M3 X 10
0→2
7
107
C2173051
Reflector
0→1
9
21*
C2173048
C2173095
Feed Roller Stay
1→1
11
24
Exit Guide Plate
1→0
27
1
C2176010
Exit Guide Plate Ass’y
0→1
27
1
C2176013
Mylar Sheet - 29 x 249
0→1
27
38*
Parallel Pin - 3 x 14
2→2
29
102
Switch Bracket
1→1
35
13
Capacitor - 4.7µF 25V
1→1
39
125
C2176011
06330140Z
06330140G
C2176131
C2176132
16041362
16041855
* DENOTES NEW ITEM
Continued...
OTHER
ITEM
PARTS
PAGE
FSM
QTY
03330060D
DESCRIPTION
PAPER PATH
Mylar Sheet added
Tech Service Bulletin No. VT1730/1800 - 016
Page 2 of 6
•
UPDATE NO. 2 - MASTER EJECT MOTOR NOISE - To reduce noise from the master eject motor,
the material of the pressure motor worm gear has been changed from a
combination of metal and plastic to metal. To accommodate this change, the
right side plate has been changed. Also, the bushings and insulators are no
longer used and the screws which secure the motor have been changed.
4 mm ➝ 3 mm
Eject Unit Right Side Plate
These items have been removed
21.1 mm ➝ 22.7 mm
Pressure Motor
Worm Gear
REFERENCE
OLD PART
NO.
NEW PART
NO.
DESCRIPTION
QTY
PAGE
ITEM
Pressure Motor - DC24V
1➝0
25
9
C2178447
DC Motor - 24V / 7.2W
0➝1
1
25
9
C2173511
Right Side Plate - Eject Unit
1➝1
3/S
25
26
C2173591
Insulator
2➝0
3/S
25
29
07073016B
Bushing - 3 x 1.6
2➝0
3/S
25
111
03130040W
Philips Pan Head Screw - M3 x 4
n ➝ n-2
25
110
Philips Pan Head Screw - M3 x 3
n ➝ n+2
25
107
C2098256
C2173516
08011135
INT
3/S
UNITS AFFECTED:
All VT1730 Priports manufactured after Serial Number C3224020001 will have the above mentioned parts
installed during production.
Continued...
Tech Service Bulletin No. VT1730/1800 - 016
Page 3 of 6
•
UPDATE NO. 3 - PARTS CATALOG UPDATE - Due to parts standardization, the following part
changes have been made.
Page 14
Cutter Unit
Page 18
The position of the cutter unit has been shifted to the
non-operation side by 3 mm. This is to prevent the
edge of the master from touching the guide plate in
the cutter unit even if the master is set skewed.
Continued...
Tech Service Bulletin No. VT1730/1800 - 016
Page 4 of 6
Page 46
Step 4 has been added to instruct the operator to rotate the master
roll back slightly before setting the platen roller. This is to prevent
creasing of the master.
16
Page 22
25 ➝ 29 (correction)
28
25
27
17
Deleted
17
26
17
Deleted
28
26
28
26
28
Continued...
Tech Service Bulletin No. VT1730/1800 - 016
Page 5 of 6
REFERENCE
OLD PART NO. NEW PART NO.
DESCRIPTION
QTY
INT
PAGE
ITEM
C2172611
C2172612
Scanner Cover
1➝1
0
7
12
C2172615
C2172616
ADF Cover
1➝1
0
9
1
C2173027
C2173028
ADF Friction Pad Ass’y
1➝1
0
9
19
C2175003
C2255002
Front Side Fence
1➝1
3
15
5
C2175004
C2255001
Rear Side Fence
1➝1
3
15
6
C2175022
Spring Lever
2➝0
15
8
C2175030
Lever Cap
2➝0
15
9
C2175033
Slider Lever
2➝0
15
10
C2175031
Lever Shaft
2➝0
15
11
Paper Table
1➝1
15
20
Side Fence Shaft
1➝0
15
32
C2175272
Paper Table Ass’y
0➝1
15
37*
C2173005
Original Guide Rack
0➝2
15
38*
C2255016
Front Base Bracket
0➝1
15
39*
C2255015
Rear Base Bracket
0➝1
15
40*
C2255013
Gear Spacer
0➝1
15
41*
C2173006
Gear - Original Guide
0➝1
15
42*
C2255010
Paper Table Base
0➝1
15
43*
Retaining Ring - M3
2➝0
15
105
08011004
Screw - M4 x 4
0➝2
15
113*
C2175058
C2175059
Tray Lower Lever
1➝1
0
15
29
C2174067
C2174167
Platen Roller Cover
1➝1
0
17
11
C2172522
C2172542
Decal - Master Setting
1➝1
0
19
47
20
5
C2174377
C2174378
Bracket - Master Sensor
1➝1
0
19
6
C2174001
C2174101
Front Side Plate - Plotter
1➝1
3/S
19
27
C2174002
C2174102
Rear Side Plate - Plotter
1➝1
3/S
19
26
Release Lever
1➝1
0
19
10
C2175216
C2175261
C2175036
07200030G
C2174061
C2254061
* DENOTES NEW ITEM
3
3/S
Continued...
Tech Service Bulletin No. VT1730/1800 - 016
Page 6 of 6
REFERENCE
OLD PART NO. NEW PART NO.
DESCRIPTION
QTY
INT
PAGE
ITEM
C2174802
C2174902
Drum Clamper Ass’y
1➝1
0
21
1
C2174544
C2174744
Clamper Magnet Plate
1➝1
0
21
3
C2174539
C2174639
Clamper Base
1➝1
0
21
4
C2174536
C2174636
Teflon Screen - LG
1➝1
0
21
9
Spring
2➝0
23
4
C2174557
C2174594
C2184594
Rear Bank Plate
1➝1
0
23
16
C2174592
C2184592
Front Bank Plate
1➝1
0
23
17
C2184558
Front Doctor Roller Ring
0➝1
23
26*
C2184559
Rear Doctor Roller Ring
0➝1
23
27*
C2184560
Ring Spring
0➝2
23
28*
Sponge - Bank Plate
2➝1
23
25
C2174597
Sponge - Rear Bank Plate
0➝1
23
29*
C2173576
C2173676
Master Eject Box
1➝1
0
25
1
C2173556
C2173656
Pressure Plate
1➝1
0
25
4
C2173584
C2173684
Gear - Pressure Plate
1➝1
0
25
8
C2173531
C2173532
Upper Eject Roller
1➝1
0
25
17
C2173501
C2173601
Left Side Plate - Eject Unit
1➝1
0
25
25
C2173511
C2173611
Right Side Plate - Eject Unit
1➝1
0
25
26
Ink Pimp
1➝1
0
33
16
C2175696
C2174559
C2174659
* DENOTES NEW ITEM
TECHNICAL SERVICE BULLETIN
CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
VT1730/1800 - 017
06/28/96
APPLICABLE MODEL: VT1800
COPY QUALITY
GENERAL:
The Thermal Head Removal Procedures for the VT1730 and VT1800 have been updated. The Field Service
Manual pages listed below must be replaced with the pages supplied. Each bulletin package contains
1 set
of replacement pages.
PAGES:
The revised areas have been highlighted by an arrow ⇒
• 5-15, 5-16, 5-16a & 5-16b
Updated Information
MECHANICAL
Thermal Head Removal Procedures
ELECTRICAL
Note: This copy intended as master of original
for reproduction of additional bulletins.
SUBJECT: FIELD SERVICE MANUAL - INSERT
PAPER PATH
FSM
PARTS
OTHER
3.2 THERMAL HEAD REMOVAL
For the VT1730
[C]
[A]
[B]
[B]
1. Turn "OFF" the main switch and disconnect the power plug.
2. Open the scanner unit.
3. Lift the platen roller release lever [A] up until it locks. Then, unhook the lock levers [B] on bot
h ends
of the platen roller and remove the platen roller.
4. Remove the thermal head cover [C] (2 screws).
5. Disconnect the connector from the thermal head.
5-15
[C]
[A]
[B]
6. Unhook the lock pawl [A] on the front side of the thermal head (operation side) using a small slotte
d
screw driver. While doing this, remove the the thermal head.
CAUTION: Be careful not to hit the thermal head surface against the plate above it.
NOTE: There are two projections on the thermal head base, and they meet the holes behind the thermal
head. The projection on the front [B] (operation side) securely meets the hole, but the other [C]s i
loose. Therefore, remove the front side first.
When installing, make sure to set the front side first.
IMPORTANT: If the thermal head has been replaced with a new one, the input voltage
must be readjusted. Follow the "THERMAL HEAD VOLTAGE ADJUSTMENT" section in
the service manual.
5-16
For the VT1800
[A]
[B]
[C]
1. Turn off the main switch and disconnect the power plug.
2. Open the scanner unit.
3. Remove the platen roller cover [A].
4. Lift the platen roller release lever [B] up until it locks. Then, unhook the lock levers and remo
ve the platen
roller [C].
[D]
[E]
[F]
5. Remove the thermal head cover [D], then remove the release lever [E].
6. Remove the two springs [F].
IMPORTANT: If the thermal head has been replaced with a new one, the input voltage
must be readjusted. Follow the "THERMAL HEAD VOLTAGE ADJUSTMENT" section in
the service manual.
5-16a
For VT1800s manufactured after
Serial Number C341604XXXX
For VT1800s manufactured before
Serial Number C341604XXXX
[H]
[H]
[G]
7. Remove the guide plate [G].
7. Remove the cutter unit [H].
8. Remove the cutter unit [H].
8. Remove the grounding screw [I] (below).
[L]
(B)
[K]
[M]
(A)
[I]
[K]
[M]
[M]
(B)
(A)
[L]
[I]
[J]
[J]
9. Remove the grounding screw [I].
9. Disconnect the connectors [J] from the thermal head.
10. Disconnect the connectors [J] from the
thermal head.
10. Unhook the pins on non-operation sides of the
thermal head bracket [K] through the cutout [L]
and remove the bracket (with the thermal head).
11. While spreading both side frames outward,
unhook the pins on both sides of the thermal head
bracket [K] and remove the bracket (with the
thermal head).
NOTE: The cutout [L] has been newly added
(April ’96).
12. Remove the two screws [M] and remove the
thermal head.
11. Remove the two screws and remove the
thermal head [M].
5-16b
TECHNICAL SERVICE BULLETIN
CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
VT1730/1800 - 018
10/15/96
APPLICABLE MODEL: VT1730/1800
COPY QUALITY
INK ON LEADING EDGE OF COPIES
SYMPTOM:
During a long printing run, ink appears at the leading edge of copies. At first, it is very hard to
see, but it
becomes more visible as the printing continues.
Due to rough paper edges, the master becomes damaged.
Just when the leading edge of the paper is positioned under the drum, it is pressed against the drum
surface, so that the master is wrapped around by the press-roller. Due to this repeated action, the
master’s
surface, where the paper leading edge contacts, is gradually torn.
ELECTRICAL
CAUSE:
MECHANICAL
Note: This copy intended as master of original
for reproduction of additional bulletins.
SUBJECT:
Also, if the paper generates a lot of paper dust, it is accumulated on the press-roller surface and
damages
the master in the same manner.
Normally, even if the master is damaged, ink does not exist around the area beneath the master where
the
paper leading edge contacts (there are no holes in the metal screen). However, after a long printing
run, ink
leaks onto this area and is transferred to the paper through the damaged part of the master.
FSM
SOLUTION:
2. Change the image position on the paper slightly using the IMAGE SHIFTING key before the leading
edge of the paper becomes dirty with ink.
PARTS
1. Change the paper type. Re-setting the paper on the paper feed table up side down so that the rough
edge of the paper faces downward may also solve the problem.
3. Cover the leading edge part of the cloth screen on the drum with tape, so that ink does not leak eve
n
when the master is damaged. See page two (2) for installation instructions for the tape.
OTHER
Continued...
Tech Service Bulletin No. VT1730/1800 - 018
Page 2 of 2
Installation Instructions:
• It is recommended to use: Teflon Tape - 19 mm: A0129112
• The position of the tape has been determined to maintain the specified 5 mm leading edge blank
margin for copies.
• Even after installing the tape, the same problem may occur if the leading edge registration of copie
s is
not adjusted properly (if the paper feed timing is delayed). First, check the leading edge registrat
ion of
the copies. If it is out of specification, follow the "LEADING EDGE REGISTRATION ADJUSTMENT"
procedure in the Service Manual.
• Strips of sandpaper are used on the leading edge portion of the cloth screen. This prevents the mast
er,
wrapped around the drum, from slipping out of the master clamper due to the repeating press-roller
ON/OFF action. Avoid covering all the sandpaper when you install the tape. However, to adhere the
tape firmly, some area of the sand paper should be covered.
• Even if the sandpaper is not used on the cloth screen (the old type cloth screen), install the tape
at the
same position by measuring the distance from the edge of the cloth screen. Refer to the distance
between the edge of the screen and the sand paper, which is described below.
Sandpaper
Black Patch
5 mm
Black Patch
19 mm
4 mm
Tape
5 mm
8.5 ~ 9.5 mm
• Cut the tape where it covers the sandpaper as shown.The indicated area must be left as shown to hold
the tape on the screen firmly.Be careful not to damage the cloth screen surface.
• Also, cut the tape where it covers the black patches (for the drum master detection sensor) as
shown. If they are covered, the drum master detection does not work properly.
• Cut both edges of the tape at the edge of themetal screen. Do not let the tape ride over the drum
flanges.
• Even if the sandpaper is not used on the cloth screen (the old type cloth screen), install tape athe
t
same position by measuring the distance from the edge of the black patch to the lower edge of the pe
ta
(between 8.5 and 9.5 mm).
--.
Field EngineeringBulletin
i
Digital DuplicatorSeries
BULLETIN NO. 3100-001
DATE 4/l 7196
Subject THERMAL HEAD REMOVAL PROCEDURE
--
0 Copy Quality
q Electrical
q Mechanical
H Modification
q Safety Information
n Technical Information
0 General Information
Model - Product I Serial Numbers Affected
3100DNP
Modification Schedule:
Mandatory
0 Scheduled Visit
0 Next Call
0 Next PM
0 As Necessary
Install Time
q
This bulletin is to inform you of the thermal head removal procedure, which is unique to the
3100DNP but is not been described in the service manual.
At the same time, this is to inform you that a modification will be implemented into the production to
make the removal procedures easier. The details of the modification is as follows:
A cutout has been made on the rear side (non-operation side) frame of the plotter unit.
(The part number: C2174102, remains the same, but all service parts are the new type only.)
This enable the removal of the thermal head (with the bracket) without having to forcibly
spread out the side frames. Refer to the new thermal head removal procedure.
This modification will be applied from the April 1996 production run.
Add the following pages of the new and old procedures for the thermal head removal to your service
manual.
SAWN CORPORATION
Technical Service Operations - P.O. Box 10270, Stamford, Connecticut 06904 - (203) 967-5000
Page 1 of 7
[PP810 0061
THERMAL HEAD REMOVAL PROCEDURE
CAUTION: IF the thermal head has been replaced with a new one, the input voltage must
be readjusted. Follow the “THERMAL HEAD VOLTAGE ADJUSTMENT” section in the
technical manual.
1.
Turn off the main switch and disconnect the power plug.
2.
Remove the plotter unit. (Refer to the “PLOTTER UNIT REMOVAL” section in the technical
manual.)
3.
Remove the platen roller cover [A].
4.
Lift the platen roller release lever [B] up until it locks. Then, unhook the lock levers and remove
the platen roller [Cl.
FEB #: -~
I
1SUBJECT:
I
3100-001
THERMAL HEAD REMOVAL PR-OCEDURE
5. Remove the thermal head cover [D], then remove the release lever[El.
6. Remove the two springs [F].
7. Remove the two guide plate [G].
8. Remove the cutter unit [HI.
PAGE: 3 of 7 1,
,I
FEB#:
3100-001
SUBJECT:
THERMAL HEAD REMOVAL PROCEDURE
9.
PAGE:4of7
~
~1
Remove the grounding screw [I].
10. Disconnect the connectors [J] from the thermal head.
11. While spreading the both side frames outward, unhook the pins on both sides of the thermal head
bracket [K] and remove the bracket (with the thermal head).
12. Remove the two screws [M] and you can remove the thermal head [L].
___~~~~~~ ~~-~
FEB #:
3100-001
SUBJECT:
THERMAL HEAD REMOVAL PROCEDURE
.-- -- - ~-~-~
PAGE 5 of 7
I
I,
THERMAL HEAD REMOVAL PROCEDURE (New Procedure)
CAUTION: IF the thermal head has been replaced with a new one, the input voltage ~
must be readjusted. Follow the “THERMAL HEAD VOLTAGE ADJUSTMENT” section
I
in the technical manual.
~
I. Turn off the main switch and disconnect the power plug.
2. Open the scanner unit.
3. Remove the platen roller cover [A].
4. Lift the platen roller release lever [B] up until it locks. Then, unhook the lock levers and remove the
platen roller [Cl.
FEB#:
~SUBJECT:
3100-001
THERMAL HEAD REMOVAL PROCEDURE
5. Remove the thermal head cover [D], then remove the release lever[El.
6. Remove the two springs [F].
7. Remove the cutter unit [HI.
PAGE:6of7
FEB #:
3100-001
S U B J E C T:
THERMAL HEAD
PAGE:7of7- ~
REMOVAL PR O C E D U R E
8.
Remove the grounding screw [I].
9.
Disconnect the connectors [J] from the thermal head.
IO. Unhook the pins on non-operation sides of the thermal head bracket [K] through the cutout [L]
and remove the bracket (with the thermal head).
NOTE: The cutout [L] has been newly added.
11. Remove the two screws and you can remove the thermal head[Ml.
I

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