g960 service manual
G960
SERVICE MANUAL
003238MIU
G960
SERVICE MANUAL
G960
SERVICE MANUAL
003238MIU
It is the reader's responsibility when discussing the information contained
within this document to maintain a level of confidentiality that is in the best
interest of Ricoh Americas Corporation and its member companies.
NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY
FASHION AND DISTRIBUTED WITHOUT THE PRIOR
PERMISSION OF RICOH AMERICAS CORPORATION.
All product names, domain names or product illustrations, including
desktop images, used in this document are trademarks, registered
trademarks or the property of their respective companies.
They are used throughout this book in an informational or editorial fashion
only and for the benefit of such companies. No such use, or the use of
any trade name, or web site is intended to convey endorsement or other
affiliation with Ricoh products.
© 2007 RICOH Americas Corporation. All rights reserved.
WARNING
The Service Manual contains information
regarding service techniques, procedures,
processes and spare parts of office equipment
distributed by Ricoh Americas Corporation.
Users of this manual should be either service
trained or certified by successfully completing a
Ricoh Technical Training Program.
Untrained and uncertified 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 Americas Corporation
LEGEND
PRODUCT
CODE
G960
LANIER
AC230n
COMPANY
RICOH
Aficio SP 3200SF
SAVIN
SP 3200SF
DOCUMENTATION HISTORY
REV. NO.
*
DATE
09/2007
COMMENTS
Original Printing
G960
TABLE OF CONTENTS
INSTALLATION
1. INSTALLATION............................................................................ 1-1
1.1 INSTALLATION REQUIREMENTS ............................................................1-1
PREVENTIVE MAINTENANCE
2. PREVENTIVE MAINTENANCE.................................................... 2-1
2.1 PM INTERVALS .........................................................................................2-1
REPLACEMENT AND ADJUSTMENT
3. REPLACEMENT AND ADJUSTMENT ........................................ 3-1
3.1 GENERAL PRECAUTIONS ON DISASSEMBLY .......................................3-1
3.1.1 CHECK POINTS FOR SERVICING ..................................................3-1
3.1.2 RELEASING PLASTIC LATCHES.....................................................3-1
3.2 EXTERIOR COVER....................................................................................3-2
3.2.1 LEFT AND RIGHT OPERATION PANEL COVER.............................3-2
3.2.2 FRONT COVER ................................................................................3-3
3.2.3 BY-PASS TRAY ................................................................................3-5
3.2.4 FACE-UP COVER AND REAR COVER ............................................3-6
3.2.5 RIGHT SIDE COVER ........................................................................3-8
3.2.6 LEFT SIDE COVER...........................................................................3-9
3.3 OPERATION PANEL................................................................................3-11
3.3.1 OPERATION PANEL UNIT .............................................................3-11
3.3.2 OPERATION PANEL BOARD .........................................................3-12
3.4 ADF ..........................................................................................................3-13
3.4.1 ADF UNIT ........................................................................................3-13
3.4.2 ADF COVER....................................................................................3-14
3.4.3 ORIGINAL TRAY.............................................................................3-14
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3.4.4 PICK-UP UNIT.................................................................................3-15
3.4.5 ADF MOTOR UNIT..........................................................................3-15
3.5 SCANNER ................................................................................................3-17
3.5.1 SCANNER UNIT..............................................................................3-17
3.5.2 CCD MODULE ................................................................................3-18
When reassembling the CCD module.................................................3-19
3.5.3 SCANNER MOTOR.........................................................................3-20
3.5.4 ADF OPEN SENSOR ......................................................................3-21
3.5.5 CCD HP (HOME POSITION) SENSOR ..........................................3-22
3.6 PAPER FEED AND EXIT .........................................................................3-23
3.6.1 PICK-UP ROLLER...........................................................................3-23
3.6.2 DUPLEX GUIDE UNIT ....................................................................3-23
3.6.3 FEED ROLLER................................................................................3-24
3.6.4 MIDDLE COVER .............................................................................3-25
3.6.5 FRONT MIDDLE COVER ................................................................3-25
3.6.6 BY-PASS FEED UNIT .....................................................................3-26
3.6.7 BY-PASS PICK-UP ROLLER ..........................................................3-26
3.6.8 REGISTRATION CLUTCH AND ROLLER ......................................3-27
3.6.9 FEED AND BY-PASS SOLENOIDS ................................................3-29
3.6.10 EXIT ROLLER............................................................................3-30
3.7 LASER OPTICS .......................................................................................3-32
3.7.1 LSU .................................................................................................3-32
3.8 IMAGE TRANSFER..................................................................................3-33
3.8.1 TRANSFER ROLLER ......................................................................3-33
3.9 FUSING ....................................................................................................3-34
3.9.1 FUSER UNIT ...................................................................................3-34
3.9.2 THERMOSTAT................................................................................3-34
3.9.3 THERMISTOR.................................................................................3-35
3.9.4 HEAT ROLLER................................................................................3-35
3.9.5 PRESSURE ROLLER .....................................................................3-37
3.10 DRIVE.................................................................................................3-39
3.10.1 MAIN MOTOR............................................................................3-39
3.10.2 DUPLEX MOTOR ......................................................................3-39
3.10.3 EXIT MOTOR.............................................................................3-40
3.11 OTHERS .............................................................................................3-42
3.11.1 DUPLEX AND MAIN FAN MOTORS .........................................3-42
3.11.2 MAIN BOARD ............................................................................3-42
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Connector Location.............................................................................3-43
3.11.3 MODEM BOARD .......................................................................3-43
3.11.4 SPEAKER ..................................................................................3-44
3.11.5 USB HOST BOARD...................................................................3-44
3.11.6 CONNECTION BOARD .............................................................3-45
Connector Location.............................................................................3-45
3.11.7 TERMINAL BOARD ...................................................................3-45
3.11.8 POWER SUPPLY BOARD.........................................................3-46
3.11.9 HIGH VOLTAGE POWER SUPPLY BOARD.............................3-47
TROUBLESHOOTING
4. TROUBLESHOOTING ................................................................. 4-1
4.1 PROCEDURE OF CHECKING SYMPTOMS .............................................4-1
4.2 DISPLAY SCREEN AND ERROR MESSAGES .........................................4-2
4.2.1 DISPLAY SCREEN ...........................................................................4-2
4.2.2 ERROR MESSAGES ........................................................................4-2
4.3 PAPER FEEDING PROBLEMS..................................................................4-3
4.3.1 WRONG PRINT POSITION...............................................................4-3
4.3.2 JAM 0 ................................................................................................4-4
4.3.3 JAM 1 ................................................................................................4-4
4.3.4 JAM 2 ................................................................................................4-5
4.3.5 DUPLEX JAM 1 .................................................................................4-6
4.3.6 DUPLEX JAM 0 .................................................................................4-7
4.3.7 MULTI-FEEDING...............................................................................4-8
4.3.8 PAPER ROLLED IN THE FUSING UNIT ..........................................4-8
4.3.9 PAPER ROLLED ON THE OPC DRUM ............................................4-9
4.3.10 DEFECTIVE ADF.........................................................................4-9
4.4 PRINTING PROBLEMS (MALFUNCTIONS) ............................................4-10
4.4.1 FUSING UNIT ERROR....................................................................4-10
4.4.2 LSU (LASER SCANNING UNIT) ERROR .......................................4-10
4.4.3 DEFECTIVE OPERATION (LCD WINDOW 111) DISPLAY .........4-11
4.4.4 DEFECTIVE LCD OPERATION ......................................................4-11
4.4.5 NONFUNCTIONING OF THE FUSING GEAR DUE TO MELTING.4-11
4.4.6 PAPER EMPTY ...............................................................................4-12
4.4.7 PAPER EMPTY WITHOUT INDICATION........................................4-12
4.4.8 DOOR OPEN...................................................................................4-13
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4.4.9 NO BEEP SOUND WHEN THE DOOR IS OPEN ...........................4-13
4.4.10 DEFECTIVE MOTOR OPERATION ..........................................4-13
4.4.11 NO POWER ...............................................................................4-14
4.4.12 CURVED VERTICAL LINE ........................................................4-14
4.5 PRINTING QUALITY PROBLEMS ...........................................................4-15
4.5.1 VERTICAL BLACK LINE AND BAND..............................................4-15
4.5.2 VERTICAL WHITE LINE .................................................................4-15
4.5.3 HORIZONTAL BLACK BAND..........................................................4-16
4.5.4 BLACK/WHITE SPOT .....................................................................4-17
4.5.5 LIGHT IMAGE .................................................................................4-18
4.5.6 DARK IMAGE OR BLACK PAGE ....................................................4-19
4.5.7 UNEVEN DENSITY .........................................................................4-19
4.5.8 BACKGROUND...............................................................................4-20
4.5.9 GHOST (1) ......................................................................................4-21
4.5.10 GHOST (2).................................................................................4-22
4.5.11 GHOST (3).................................................................................4-22
4.5.12 GHOST (4).................................................................................4-23
4.5.13 STAINS ON THE FACE OF PAGE ............................................4-24
4.5.14 STAINS ON THE BACK OF PAGE............................................4-24
4.5.15 BLANK PAGE PRINT OUT (1)...................................................4-25
4.5.16 BLANK PAGE PRINT OUT (2)...................................................4-26
4.6 FAX AND PHONE PROBLEMS ...............................................................4-27
4.6.1 NO DIAL TONE ...............................................................................4-27
4.6.2 DEFECTIVE MF DIAL .....................................................................4-27
4.6.3 DEFECTIVE FAX FORWARD/RECEIVE ........................................4-28
4.6.4 DEFECTIVE FAX FORWARD .........................................................4-28
4.6.5 DEFECTIVE FAX RECEIVE (1) ......................................................4-29
4.6.6 DEFECTIVE FAX RECEIVE (2) ......................................................4-29
4.6.7 DEFECTIVE FAX RECEIVE (3) ......................................................4-29
4.6.8 DEFECTIVE FAX RECEIVE (4) ......................................................4-30
4.6.9 DEFECTIVE AUTOMATIC RECEIVING..........................................4-30
4.7 COPY PROBLEMS...................................................................................4-31
4.7.1 WHITE COPY..................................................................................4-31
4.7.2 BLACK COPY..................................................................................4-31
4.7.3 ABNORMAL NOISE ........................................................................4-31
4.7.4 DEFECTIVE IMAGE QUALITY........................................................4-32
4.8 SCANNING PROBLEMS..........................................................................4-33
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4.8.1 DEFECTIVE PC SCAN ...................................................................4-33
4.8.2 DEFECTIVE IMAGE QUALITY OF PC SCAN.................................4-33
4.9 NETWORK PROBLEMS ..........................................................................4-34
4.9.1 GENERAL PROBLEMS ..................................................................4-34
4.9.2 MACINTOSH PROBLEMS ..............................................................4-35
4.9.3 WINDOWS PROBLEMS .................................................................4-36
4.9.4 SYNCTHRU INSTALLATION PROBLEMS .....................................4-38
4.10 PERIODIC DEFECTIVE IMAGE .........................................................4-40
SERVICE TABLES
5. SERVICE TABLES....................................................................... 5-1
5.1 TECH MODE ..............................................................................................5-1
5.1.1 HOW TO ENTER TECH MODE ........................................................5-1
To enter Tech Mode..............................................................................5-1
To exit the Tech Mode ..........................................................................5-1
5.1.2 TECH MODE .....................................................................................5-1
5.1.3 DATA SETUP ....................................................................................5-3
Send Level ............................................................................................5-3
Dial Mode..............................................................................................5-3
Modem Speed.......................................................................................5-3
Error Rate .............................................................................................5-3
Clear All Memory ..................................................................................5-3
Flash Upgrade ......................................................................................5-4
5.1.4 MACHINE TESTS .............................................................................5-4
Switch Test ...........................................................................................5-4
Modem Test ..........................................................................................5-4
DRAM Test ...........................................................................................5-4
ROM Test .............................................................................................5-4
Pattern Test ..........................................................................................5-4
Shading Test.........................................................................................5-4
5.1.5 REPORTS .........................................................................................5-5
Protocol List ..........................................................................................5-5
Configuration Report.............................................................................5-5
5.2 EDC (ENGINE DIAGNOSTIC CONTROL) MODE......................................5-6
5.2.1 EDC SETUP ......................................................................................5-6
5.2.2 OPERATING EDC.............................................................................5-6
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G960
Entering EDC ........................................................................................5-6
Exiting EDC...........................................................................................5-6
5.2.3 COVER OPEN/CLOSE STATUS ......................................................5-6
Usage ...................................................................................................5-6
Function ................................................................................................5-7
5.2.4 SENSOR STATUS ............................................................................5-7
Usage ...................................................................................................5-7
Function ................................................................................................5-7
5.2.5 MOTOR TEST ...................................................................................5-8
Usage ...................................................................................................5-8
5.2.6 FAN TEST .........................................................................................5-9
Usage ...................................................................................................5-9
Function ..............................................................................................5-10
5.2.7 CLUTCH/SOLENOID ......................................................................5-10
Usage .................................................................................................5-10
Function ..............................................................................................5-10
5.2.8 FUSER CONTROL..........................................................................5-11
Usage .................................................................................................5-11
5.2.9 LSU .................................................................................................5-12
Usage .................................................................................................5-12
5.2.10 BIAS CONTROL ........................................................................5-12
Usage .................................................................................................5-13
Function ..............................................................................................5-13
5.3 FIRMWARE DOWNLOAD ........................................................................5-14
5.3.1 FIRMWARE UPGRADE ..................................................................5-14
Local ...................................................................................................5-14
Remote ...............................................................................................5-15
DETAILED SECTION DESCRIPTIONS
6. DETAILED DESCRIPTIONS ........................................................ 6-1
6.1 SYSTEM DESCRIPTIONS .........................................................................6-1
6.1.1 FEEDING SECTION..........................................................................6-1
6.1.2 TRANSFER UNIT..............................................................................6-1
6.1.3 DRIVER UNIT....................................................................................6-1
6.1.4 FUSING UNIT....................................................................................6-1
Overheat protection: .............................................................................6-1
G960
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Safety device ........................................................................................6-2
6.1.5 LSU (LASER SCANNING UNIT) .......................................................6-2
6.1.6 SCANNER .........................................................................................6-2
6.1.7 TONER CARTRIDGE........................................................................6-3
6.1.8 DUPLEX UNIT...................................................................................6-4
6.1.9 OPTIONAL TRAY (SCF) ...................................................................6-4
6.1.10 CONTROLLER ............................................................................6-4
6.1.11 ELECTRICAL COMPONENTS ....................................................6-4
Input Circuit Sensor ..............................................................................6-4
By-pass Sensor.....................................................................................6-4
Paper Feed Sensor...............................................................................6-4
Paper Exit Sensor .................................................................................6-5
Cover Open Sensor ..............................................................................6-5
DC Fan / Solenoid Control ....................................................................6-5
Motor Control ........................................................................................6-5
6.1.12 SMPS AND HVPS BOARD..........................................................6-5
SMPS (Switching Mode Power Supply) ................................................6-5
SPECIFICATIONS
7. SPECIFICATIONS........................................................................ 7-1
7.1 GENERAL SPECIFICATIONS....................................................................7-1
7.1.1 GENERAL SPECIFICATIONS...........................................................7-1
7.1.2 PRINTER...........................................................................................7-3
7.1.3 SCANNER .........................................................................................7-4
7.1.4 COPIER.............................................................................................7-5
7.1.5 TELEPHONE.....................................................................................7-6
7.1.6 FAX ...................................................................................................7-7
APPENDIX
8. APPENDIX.................................................................................... 8-1
8.1 BLOCK DIAGRAM......................................................................................8-1
8.1.1 SYSTEM BLOCK DIAGRAM .............................................................8-1
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Read This First
Precautions
In order to prevent accidents and to prevent damage to the equipment, please read the
precautions listed below carefully before servicing the machine and follow them closely.
Safety Warning
1.
Only to be serviced by appropriately qualified service engineers.
ƒ
High voltages and lasers inside this product are dangerous. This machine should
only be serviced by a suitably trained and qualified service engineer.
2.
Use only genuine replacement parts
ƒ
There are no user serviceable parts inside the machine. Do not make any
unauthorized changes or additions to the machine, these could cause the machine
to malfunction and create electric shock or fire hazards.
3.
Laser Safety Statement
ƒ
The Machine is certified in the U.S. to conform to the requirements of DHHS 21
CFR, chapter 1 Subchapter J for Class 1(1) laser products, and elsewhere, it is
certified as a Class I laser product conforming to the requirements of IEC 825.
Class I laser products are not considered to be hazardous. The laser system and
machine are designed so there is never any human access to laser radiation
above a Class I level during normal operation, user maintenance, or prescribed
service condition.
ƒ
Never operate or service the machine with the protective cover removed from
Laser/Scanner assembly. The reflected beam, although invisible, can damage
your eyes. When using this product, these basic safety pre-cautions should always
be followed to reduce risk of fire, electric shock, and injury to persons.
CAUTION FOR SAFETY
Toxic material
This product contains toxic materials that could cause illness if ingested.
1.
If the LCD control panel is damaged, it is possible for the liquid inside to leak. This
liquid is toxic. Contact with the skin should be avoided, wash any splashes from eyes
or skin immediately and contact your doctor. If the liquid gets into the mouth or is
swallowed, see a doctor immediately.
2.
Please keep toner cartridges away from children. The toner powder contained in the
toner cartridge may be harmful and if swallowed, you should contact a doctor.
Electric Shock and Fire Safety Precautions
Failure to follow the following instructions could cause electric shock or potentially cause a
fire.
1.
Use only the correct voltage, failure to do so could damage the machine and
potentially cause a fire or electric shock.
2.
Use only the power cable supplied with the machine. Use of an incorrectly specified
cable could cause the cable to overheat and potentially cause a fire.
Assembly/ Disassembly Precautions
Replace parts carefully, always use genuine parts. Take care to note the exact location of
parts and also cable routing before dismantling any part of the machine. Ensure all parts
and cables are replaced correctly.
Please carry out the following procedures before dismantling the machine or replacing any
parts.
(1) Check the contents of the machine memory and make a note of any user settings.
These will be erased if the main board or network card is replaced.
(2) Ensure that power is disconnected before servicing or replacing any electrical parts.
(3) Disconnect machine interface cables and power cables.
(4) Only use approved spare parts. Ensure that part number, product name, any voltage,
current or temperature rating are correct.
(5) When removing or re-fitting any parts do not use excessive force, especially when fitting
screws into plastic.
(6) Take care not to drop any small parts into the machine.
(7) Handling of the OPC Drum
ƒ
The OPC Drum can be irreparably damaged if it is exposed to light. Take care not to
expose the OPC Drum either to direct sunlight or to fluorescent or incandescent room
lighting. Exposure for as little as five minutes can damage the surface’s
photoconductive properties and will result in print quality degradation. Take extra care
when servicing the machine. Remove the OPC Drum and store it in a black bag or
other lightproof container. Take care when working with the covers (especially the top
cover) open as light is admitted to the OPC area and can damage the OPC Drum.
ƒ
Take care not to scratch the green surface of OPC Drum Unit. If the green surface of
the Drum Cartridge is scratched or touched the print quality will be compromised.
Disregarding this warning may cause bodily injury
1.
Be careful with the high temperature part.
The fuser unit works at a high temperature. Use caution when working on the machine.
Wait for the fuser to cool down before disassembly.
2.
Do not put fingers or hair into the rotating parts.
When operating a machine, do not put hand or hair into the rotating parts (Paper
feeding entrance, motor, fan, etc.). This may cause harm.
REPLACEMENT AND ADJUSTMENT
TAB
POSITION 1
TAB
POSITION 2
TAB
POSITION 5
SPECIFICATIONS
TAB
POSITION 7
DETAILED DESCRIPTIONS
APPENDIX
TAB
POSITION 8
SERVICE TABLES
TAB
POSITION 6
TROUBLESHOOTING
TAB
POSITION 3
PREVENTIVE MAINTENANCE
TAB
POSITION 4
INSTALLATION
INSTALLATION
Installation
Installation Requirements
1. INSTALLATION
1.1 INSTALLATION REQUIREMENTS
This product is fully user-installable.
Refer to the User's Guide
SM
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G960
PREVENTIVE MAINTENANCE
PM Intervals
2. PREVENTIVE MAINTENANCE
Preventive
Maintenance
2.1 PM INTERVALS
There are no PM parts in this machine.
ƒ
There is essentially no PM required on this product.
ƒ
The 4 yield parts listed below would need to be replaced in cases where their yield
is near, however, given the ACV (Average Copy Volume) on this product, the “yield
parts*1“ are expected to outlast the machine.
*1 “Yield Parts”: Parts whose expected yield is longer than the machine lifetime when
taking into consideration the machine’s ACV.
Description
Expected Yield
Q'ty/unit
Pick-up Roller
150K prints
1
Friction Pad Ass'y
150K prints
1
Transfer Roller
70K prints
1
Fuser Unit
80K prints
1
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G960
REPLACEMENT AND ADJUSTMENT
General Precautions on Disassembly
3. REPLACEMENT AND ADJUSTMENT
3.1 GENERAL PRECAUTIONS ON DISASSEMBLY
When you disassemble and reassemble components, you must use extreme caution. The
close proximity of cables to moving parts makes proper routing a must. If components are
removed, any cables disturbed by the procedure must be restored as close as possible to
Replacement
and
Adjustment
their original positions. Before removing any component from the machine, note the cable
routing that will be affected.
3.1.1 CHECK POINTS FOR SERVICING
Whenever servicing the machine, you must perform as follows:
1.
Check to verify that documents are not stored in memory.
2.
Be sure to remove the print cartridge before you disassemble parts.
3.
Unplug the power cord.
4.
Use a flat and clean surface.
5.
Replace only with authorized components.
6.
Do not force plastic-material components.
7.
Make sure all components are in their proper position.
3.1.2 RELEASING PLASTIC LATCHES
Many of the parts are held in place with plastic latches. The latches break easily; release
them carefully. To remove such parts, press the hook end of the latch away from the part to
which it is latched.
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3-1
G960
Exterior Cover
3.2 EXTERIOR COVER
3.2.1 LEFT AND RIGHT OPERATION PANEL COVER
1.
Open the ADF unit [A].
2.
Open the front cover.
3.
Remove the left operation panel cover [B].
G960
3-2
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Replacement
and
Adjustment
Exterior Cover
4.
Remove the right operation panel cover [C].
3.2.2 FRONT COVER
1.
SM
Pull out the paper tray. [A].
3-3
G960
Exterior Cover
2.
Open the front cover [B].
3.
Push both links [C] to the inside of the machine, and then release them.
4.
Remove the front cover.
G960
3-4
SM
Exterior Cover
Replacement
and
Adjustment
3.2.3 BY-PASS TRAY
1.
Open the bypass tray [A].
2.
Push both links [B] to the inside of the machine, and then release them.
SM
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G960
Exterior Cover
3.
Remove the by-pass tray [C].
3.2.4 FACE-UP COVER AND REAR COVER
1.
Take out the duplex unit [A].
G960
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Replacement
and
Adjustment
Exterior Cover
2.
Remove the rear cover with the face-up cover [B] ( x 4).
3.
Release strap [C] as shown above.
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G960
Exterior Cover
4.
Remove the face-up cover [D].
5.
Rear cover [E]
3.2.5 RIGHT SIDE COVER
1.
2.
Before you remove the right side cover, you should remove:
ƒ
Front cover ( Sec. 3.2.2 "Front Cover")
ƒ
Rear cover with face-up cover (Sec. 3.2.4 "Face-up Cover and Rear Cover")
Remove the two screws from the right side cover [A].
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Replacement
and
Adjustment
Exterior Cover
3.
Take off the right side cover.
3.2.6 LEFT SIDE COVER
1.
2.
SM
Before you remove the left side cover, you should remove:
ƒ
Front cover (Sec. 3.2.2 "Front Cover")
ƒ
Rear cover with face-up cover (Sec. 3.2.4 "Face-up Cover and Rear Cover")
Remove the two screws from the left side cover [A].
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G960
Exterior Cover
3.
Take off the left side cover [B].
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SM
Operation Panel
3.3 OPERATION PANEL
3.3.1 OPERATION PANEL UNIT
1.
Before you remove the operation panel unit, you should remove:
ƒ
Left and right operation panel cover ( 3.2.1 "Left and Right Operation Panel
Replacement
and
Adjustment
Cover")
2.
Remove the two screws on the operation panel unit as shown above.
3.
Remove the operation panel unit [A] ( x 3).
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G960
Operation Panel
3.3.2 OPERATION PANEL BOARD
1.
Before you remove the operation panel board, you should remove:
ƒ
Left and right operation panel cover (Sec. 3.2.1 "Left and Right Operation Panel
Cover")
ƒ
Operation panel unit (Sec. 3.3.1 "Operation Panel Unit")
2.
Remove the operation panel board [A] ( x 9).
3.
Remove the LCD cover [B].
G960
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ADF
3.4 ADF
Replacement
and
Adjustment
3.4.1 ADF UNIT
1.
Open the ADF unit [A].
2.
Disconnect the ADF cable [B] and take out the ADF unit.
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G960
ADF
3.4.2 ADF COVER
1.
Open the ADF cover [A].
2.
Push the shaft holder [B] in the arrow direction as shown above.
3.
Remove the ADF cover.
3.4.3 ORIGINAL TRAY
1.
Before you remove the original tray, you should remove:
ƒ
ADF unit (Sec. 3.4.1 " ADF Unit")
2.
Remove the ADF cable cover [A] ( x 2).
3.
Remove the ADF drive unit [B] ( x 2).
4.
Remove the original tray [C] ( x 3).
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ADF
3.4.4 PICK-UP UNIT
Open the ADF cover
2.
Release the lock [A] as shown above.
3.
Remove the pick-up unit [B].
Replacement
and
Adjustment
1.
3.4.5 ADF MOTOR UNIT
1.
Before you remove the ADF motor unit, you should remove:
ƒ
2.
SM
ADF drive unit (Sec. 3.4.3 "Original Tray")
Remove the ADF upper guide [A] ( x 2).
3-15
G960
ADF
3.
Remove the ADF motor unit [B] ( x 5, x 2)
G960
3-16
SM
Scanner
3.5 SCANNER
3.5.1 SCANNER UNIT
Before you remove the scanner unit, you should remove:
ƒ
Left side cover (Sec. 3.2.6 "Left Side Cover")
ƒ
Right side cover (Sec. 3.2.5 "Right Side Cover")
ƒ
Operation panel unit (Sec. 3.3.1 "Operation Panel Unit ")
ƒ
ADF unit (Sec. 3.4.1 "ADF Unit")
Replacement
and
Adjustment
1.
2.
Remove the two screws securing the scanner unit [A] as shown above.
3.
Remove the ground cable and all cables ( x 1).
SM
3-17
G960
Scanner
4.
Lift the scanner unit [B] in the direction of the arrow as shown above, and then remove
it.
3.5.2 CCD MODULE
1.
Before you remove the CCD module, you should remove:
ƒ
2.
Scanner unit ( 3.5.1 "Scanner Unit")
Remove the scanner top [A] as shown above ( x 4, hook x 6).
G960
3-18
SM
3.
Remove the core [B] and scanner flat cable [C].
ƒ
Remove the CCD flat cable vertically to avoid damaging the pins of the CCD
flat cable.
4.
Pull up the CCD shaft [D], and then take out the CCD module [E].
When reassembling the CCD module
1.
SM
When installing the scanner belt and belt spring, set the belt spring [A] as close to the
3-19
G960
Replacement
and
Adjustment
Scanner
Scanner
right side of the CCD module as possible as shown above.
2.
When installing the scanner top, make sure that the actuator of the ADF open sensor
comes out from the hole of the scanner top.
3.5.3 SCANNER MOTOR
1.
2.
Before you remove the scanner motor, you should remove:
ƒ
Scanner unit ( 3.5.1 "Scanner Unit")
ƒ
CCD module ( 3.5.2 "CCD Module")
Squeeze the belt spring [A] to release the tension of the scanner belt [B], and then lift
the scanner belt [B] from the pulleys as shown above.
3.
Remove the scanner motor unit [C] ( x 3).
G960
3-20
SM
4.
Replacement
and
Adjustment
Scanner
Remove the scanner motor [D] ( x 2).
3.5.4 ADF OPEN SENSOR
1.
2.
SM
Before you remove the ADF open sensor, you should remove:
ƒ
Scanner unit (Sec. 3.5.1 "Scanner Unit")
ƒ
CCD module ( 3.5.2 "CCD Module")
Remove the ADF harness [A] (hook x 2)
3-21
G960
Scanner
3.
Disconnect the connector [B].
4.
Remove the actuator [C] (spring x 1), and then the ADF open sensor [D].
3.5.5 CCD HP (HOME POSITION) SENSOR
1.
Before you remove the CCD HP sensor, you should remove:
ƒ
Scanner unit (Sec. 3.5.1 "Scanner Unit")
ƒ
Scanner top (Sec. 3.5.2 "CCD Module")
2.
Slide the CCD module to the right-hand side.
3.
Remove the CCD HP sensor holder [A].
4.
Remove the CCD HP sensor [B] ( x 1, hooks)
G960
3-22
SM
Paper Feed and Exit
3.6 PAPER FEED AND EXIT
Replacement
and
Adjustment
3.6.1 PICK-UP ROLLER
1.
Take out the Cassette [A].
2.
Remove the pick-up roller [B].
ƒ
Release the latch , and then slide the pick-up roller  to the right-hand side.
3.6.2 DUPLEX GUIDE UNIT
1.
SM
Before you remove the duplex guide, you should remove:
ƒ
Duplex unit (Sec. 3.2.4 "Face-up Cover and Rear Cover")
ƒ
Pick-up roller (Sec. 3.6.1 "Pick-up Roller")
3-23
G960
Paper Feed and Exit
2.
3.
Remove the pick-up roller shaft [A].
ƒ
Release the clip ring .
ƒ
Slide the pick-up roller shaft to the right-hand side .
ƒ
Release the notch of the cam and then remove the cam and bushing ‘.
ƒ
Remove the pick-up roller shaft ’.
Remove the duplex guide unit [B] ( x 2, x 1).
3.6.3 FEED ROLLER
1.
Before you remove the feed roller, you should remove:
ƒ
G960
Duplex guide unit (Sec. 3.6.2 "Duplex Guide Unit")
3-24
SM
Paper Feed and Exit
2.
Remove the feed roller [A].
1.
2.
Replacement
and
Adjustment
3.6.4 MIDDLE COVER
Before you remove the middle cover, you should remove:
ƒ
Left side cover (Sec. 3.2.6 "Left Side Cover")
ƒ
Right side cover ( 3.2.5 "Right Side Cover")
ƒ
Scanner unit ( 3.5.1 "Scanner Unit")
ƒ
Main board (Sec. 3.11.2 "Main Board")
ƒ
USB host board (Sec. 3.11.5 "USB Host Board")
Remove the middle cover [A] ( x 6).
3.6.5 FRONT MIDDLE COVER
1.
Before you remove the front middle cover, you should remove:
ƒ
SM
Middle cover (Sec. 3.6.4 "Middle Cover")
3-25
G960
Paper Feed and Exit
2.
Remove the front middle cover [A] ( x 4, hooks)
ƒ
Be careful with the front middle cover during replacing, as it is fragile.
3.6.6 BY-PASS FEED UNIT
1.
Before you remove the by-pass feed unit, you should remove:
ƒ
2.
Front middle cover (Sec. 3.6.4 "Front Middle Cover")
Remove the by-pass feed unit [A] ( x 4, x 2)
3.6.7 BY-PASS PICK-UP ROLLER
1.
Before you remove the by-pass pick-up roller, you should remove :
ƒ
G960
By-pass feed unit (Sec. 3.6.6"By-pass Feed Unit")
3-26
SM
2.
Replacement
and
Adjustment
Paper Feed and Exit
Remove the by-pass pick-up roller [A]
ƒ
Release the notch and then slide the stopper  to the left-hand side.
ƒ
Slide the idle cam  to the left-hand side.
3.6.8 REGISTRATION CLUTCH AND ROLLER
1.
2.
SM
Before you remove the registration clutch and roller, you should remove:
ƒ
Pick-up roller (Sec. 3.6.1 "Pick-up Roller")
ƒ
Duplex guide unit (Sec. 3.6.2 "Duplex Guide Unit")
ƒ
Middle cover (Sec. 3.6.4 "Middle Cover")
ƒ
By-pass feed unit (Sec. 3.6.6 "By-pass Feed Unit")
Remove the spring plates [A] ( x 1 each).
3-27
G960
Paper Feed and Exit
3.
Remove the registration idle roller [B] (bushing x 2, spring x 2).
4.
Remove the feed roller gear [C] ( x 1).
5.
Remove the feed gear bracket [D] ( x 3).
G960
3-28
SM
Paper Feed and Exit
Remove the feed roller shaft [E]
7.
Remove the registration clutch [F].
8.
Remove the registration roller shaft [G].
9.
Remove the registration roller [H].
ƒ
Replacement
and
Adjustment
6.
Do not touch the rubber parts of the registration roller, as doing so could
potentially cause a malfunction due to a foreign substance getting onto the
surface.
3.6.9 FEED AND BY-PASS SOLENOIDS
1.
SM
Before you remove the feed and by-pass solenoids, you should remove:
ƒ
Duplex guide unit (Sec. 3.6.2 "Duplex Guide Unit")
ƒ
Feed gear bracket (Sec. 3.6.8, Step 5 "Feed Gear Bracket")
3-29
G960
Paper Feed and Exit
2.
Remove the pick-up roller gear [A] and pick-up roller shaft [B].
3.
Remove the feed solenoid [C] ( x 1, x 1).
4.
Remove the by-pass solenoid [D] ( x 1, x 1).
3.6.10 EXIT ROLLER
1.
Before you remove the exit roller, you should remove:
ƒ
Fuser unit (Sec. 3.9.1 "Fuser Unit")
ƒ
Middle cover (Sec. 3.6.4 "Middle Cover")
G960
3-30
SM
Replacement
and
Adjustment
Paper Feed and Exit
2.
Remove the exit roller gear [A].
3.
Remove the exit roller bearings [B]
4.
Remove the exit roller [C].
SM
3-31
G960
Laser Optics
3.7 LASER OPTICS
3.7.1 LSU
1.
Before you remove the LSU, you should remove:
ƒ
2.
Middle cover (Sec. 3.6.4 "Middle Cover")
Remove the LSU [A] ( x 4, x 1).
G960
3-32
SM
Image Transfer
3.8 IMAGE TRANSFER
3.8.1 TRANSFER ROLLER
Before you remove the transfer roller, you should remove:
ƒ
Middle cover (Sec. 3.6.4 "Middle Cover")
ƒ
LSU (Sec. 3.7.1 "LSU")
Replacement
and
Adjustment
1.
2.
Pull the transfer roller holder [A].
3.
Remove the transfer roller [B].
SM
3-33
G960
Fusing
3.9 FUSING
3.9.1 FUSER UNIT
1.
Before you remove the fuser unit, you should remove:
ƒ
2.
Rear cover (Sec. 3.2.4, Step 2 "Rear Cover")
Remove the fuser unit [A] ( x 4)
3.9.2 THERMOSTAT
1.
Before you remove the thermostat, you should remove:
ƒ
2.
Fuser unit (Sec. 3.9.1 "Fuser Unit")
Remove the thermostats [A] ( x 3, x 2).
ƒ
When disconnecting wires connected to the terminal [B], press down on the
lock-release tab [C] on the terminal connector and then disconnect it by sliding it
off the terminal.
G960
3-34
SM
Fusing
3.9.3 THERMISTOR
1.
Before you remove the thermistor, you should remove:
Fuser unit (Sec. 3.9.1 "Fuser Unit")
Replacement
and
Adjustment
ƒ
2.
Remove the connector [A] ( x 2, x 3).
ƒ
When disconnecting the terminal connectors, first press down on the lock-release
tab (on the terminal connector), and then disconnect it by sliding it off.
3.
Remove the thermistor [B] ( x 1).
3.9.4 HEAT ROLLER
1.
Before you remove the heat roller, you should remove:
ƒ
SM
Fuser unit (Sec. 3.9.1 "Fuser Unit")
3-35
G960
Fusing
2.
Disconnect the terminal connectors [A] (refer to "Thermostat" about disconnecting the
terminal connectors).
ƒ
In case you cannot access the tab on the terminal, first remove the terminal
connection [B], and then press down on the tab while pulling the connector to
disconnect the connector by sliding it off.
3.
Remove the gear unit [C] ( x 3).
G960
3-36
SM
Replacement
and
Adjustment
Fusing
4.
Remove the fuser cover [D] ( x 3).
5.
Rotate the bushings [E] in the direction of the arrow as shown above.
6.
Slide the heat roller [F] in the direction of the arrow as shown above, and then remove
it.
ƒ
Be careful not to damage or dirty the surface of the heat roller while replacing it.
3.9.5 PRESSURE ROLLER
1.
SM
Before you remove the pressure roller, you should remove:
ƒ
Fuser unit (Sec. 3.9.1 "Fuser Unit")
ƒ
Heat roller (Sec. 3.9.4 "Heat Roller")
3-37
G960
Fusing
2.
Release the hook [A], and then remove the feed-in guide [B].
3.
Remove the pressure levers [C] and pressure roller holders [D] ( x 1 each).
4.
Remove the pressure roller [E].
G960
3-38
SM
Drive
3.10 DRIVE
3.10.1 MAIN MOTOR
Before you remove the main motor, you should remove:
ƒ
Left side cover (Sec. 3.2.6 "Left Side Cover")
ƒ
Controller bracket (Sec. 3.10.1 "Main Board")
Replacement
and
Adjustment
1.
2.
Remove the main drive unit [A] ( x 5, x 1).
3.
Remove the main motor [B] ( x 4).
3.10.2 DUPLEX MOTOR
1.
SM
Before you remove the duplex motor, you should remove:
3-39
G960
Drive
ƒ
Right side cover (Sec. 3.2.5 "Right Side Cover")
2.
Remove the duplex drive unit [A] ( x 3, x 1)
3.
Remove the duplex motor [B] ( x 2, x 1).
3.10.3 EXIT MOTOR
1.
Before you remove the exit motor, you should remove:
ƒ
G960
Right side cover (Sec. 3.2.6 "Left Side Cover")
3-40
SM
2.
Remove the exit drive unit [A] ( x 3, x 1).
3.
Remove the exit motor [B] ( x 2, x 1).
SM
3-41
Replacement
and
Adjustment
Drive
G960
Others
3.11 OTHERS
3.11.1 DUPLEX AND MAIN FAN MOTORS
1.
Before you remove the duplex or main fan motor, you should remove:
ƒ
Right side cover (Sec. 3.2.5 "Right Side Cover")
2.
Remove the duplex fan motor [A] ( x 2, x 1).
3.
Remove the main fan motor [B] ( x 2, x 1).
3.11.2 MAIN BOARD
1.
Before you remove the main board, you should remove:
ƒ
G960
Left side cover (Sec. 3.2.6 "Left Side Cover ")
3-42
SM
Others
Remove the main board bracket [A] ( x 5, all s)
3.
Remove the main board [B] ( x 5, flat cable x 1).
Replacement
and
Adjustment
2.
ƒ
Do ”Memory Clear” after replacing the main board.
Connector Location
3.11.3 MODEM BOARD
1.
Before you remove the modem board, you should remove:
ƒ
SM
Main board (Sec. 3.10.1 "Main Board")
3-43
G960
Others
2.
Remove the modem board [A] ( x 3, flat cable x 1)
3.11.4 SPEAKER
1.
Before you remove the speaker, you should remove
ƒ
2.
Main board (Sec. 3.10.1 "Main Board")
Remove the speaker [A] ( x 2, x 1)
3.11.5 USB HOST BOARD
1.
Before you remove the USB host board, you should remove:
ƒ
Left side cover (Sec. 3.2.6 "Left Side Cover")
ƒ
Right side cover (Sec. 3.2.5 "Right Side Cover")
ƒ
Scanner unit (Sec.3.5.1 “Scanner Unit”)
ƒ
Main board bracket (Sec. 3.10.1 "Main Board ")
G960
3-44
SM
2.
Replacement
and
Adjustment
Others
Remove the USB host board [A] ( x 2, x 1).
3.11.6 CONNECTION BOARD
1.
Before you remove the connection board, you should remove:
ƒ
2.
Right side cover (Sec. 3.2.5 "Right Side Cover")
Remove the connection board [A] ( x 2, all s).
Connector Location
3.11.7 TERMINAL BOARD
1.
Before you remove the terminal board, you should remove:
ƒ
SM
Middle cover (Sec. 3.6.4 "Middle Cover")
3-45
G960
Others
ƒ
2.
LSU (Sec. 3.7.1 "LSU")
Remove the terminal board [A] ( x 1, x 1).
3.11.8 POWER SUPPLY BOARD
1.
2.
Before you remove the power supply board, you should remove:
ƒ
Right side cover (Sec. 3.2.5 "Right Side Cover")
ƒ
Duplex drive unit (Sec. 3.10.2 "Duplex Motor")
Remove the power supply unit [A] ( x 3, x 2).
G960
3-46
SM
3.
Replacement
and
Adjustment
Others
Remove the power supply board [B] ( x 4).
3.11.9 HIGH VOLTAGE POWER SUPPLY BOARD
1.
2.
SM
Before you remove the power supply board, you should remove:
ƒ
Duplex drive unit (Sec. 3.10.2, Step 2 "Duplex Drive Unit")
ƒ
Duplex guide unit (Sec. 3.6.2 "Duplex Guide Unit")
Disconnect HVPS connector [A].
3-47
G960
Others
3.
Remove the high voltage power supply unit [B] ( x 8, All s)
ƒ
Disconnect the connection board and power supply board harness [C] first, and
then other harnesses.
4.
Remove the high voltage power supply board [D] ( x 3).
G960
3-48
SM
TROUBLESHOOTING
Procedure of Checking Symptoms
4. TROUBLESHOOTING
4.1 PROCEDURE OF CHECKING SYMPTOMS
Before attempting to repair the printer, first obtain a detailed description from the customer
of the problem.
Power On
OP Panel
ON?
No
- No Power
- Power Module error
- Main PBA error
- LCD Panel error
Ready or
Power save
No
Indicate
Error Message
Yes
Troubleshooting
Yes
Refer to
Error Message
<User's Guide>
Yes
Test Print
Printing
Quality is
Nomal?
No
Refer to "Solution
of Image Problem"
Yes
g960t501
End
SM
4-1
G960
Display Screen and Error Messages
4.2 DISPLAY SCREEN AND ERROR MESSAGES
4.2.1 DISPLAY SCREEN
Please refer to User’s Guide for familiarization with the machine's display screen
messages.
4.2.2 ERROR MESSAGES
Please refer to User’s Guide for familiarization with the machine's display screen
messages.
G960
4-2
SM
Paper Feeding Problems
4.3 PAPER FEEDING PROBLEMS
Troubleshooting
Jam Location
Paper Jam 0: In the paper feed area (tray1, optional tray 2 or
[A]
multi-purpose tray)
[B]
Paper Jam 1: In the fusing unit area or around the toner cartridge
[C]
Paper Jam 2: In the paper exit area
[D]
Duplex Jam 0: In the duplex unit
[E]
Duplex Jam 1: Between the duplex unit and rear cover area
4.3.1 WRONG PRINT POSITION
Description:
Printing begins at the wrong position on the paper.
Problem and Cause
Wrong sensing time caused by defective
feed sensor actuator.
SM
Solution
Replace the defective feed sensor actuator.
4-3
G960
Paper Feeding Problems
4.3.2 JAM 0
Description:
1.
Paper does not exit the cassette.
2.
Jam-0 occurs if the paper feeds into the printer.
Problem and Cause
1.
Solution
Check the pick-up clutch by using
"Engine Test Mode".
2.
Check the surface of the pick-up roller
for foreign matter.
3.
If continuous clustering occurs, check
whether the assembly slot between
Replace the pick-up clutch.
2.
Clean with soft cloth dampened with
IPA (Isopropyl Alcohol) or water.
pick-up roller shaft and pick-up roller
3.
opens or is broken away.
4.
1.
If the paper feeds into the machine and
Replace the pick-up roller and/or
pick-up roller shaft.
Jam 0 occurs, perform "Engine Test
Mode" to check the feed-sensor of the
main board.
4.3.3 JAM 1
G960
4-4
SM
Paper Feeding Problems
Description:
1.
Paper is jammed in front of or inside the fusing unit.
2.
Paper is stuck in the discharge roller and in the fusing unit just after passing through
the Actuator-Feed.
Problem and Cause
1.
2.
Solution
If paper is jammed in front of or inside
the fusing unit.
1.
Replace the HVPS.
If the paper is stuck in the discharge
2.
Reassemble the Actuator-Feed and
roller and the fusing unit just after
Spring-Actuator if the movement is
passing through the Actuator-Feed,
bad.
Troubleshooting
Feed Actuator may be defective.
4.3.4 JAM 2
Description:
1.
Paper is jammed in front of or inside the fusing unit.
2.
Paper is stuck in the discharge roller and in the fusing unit just after passing through
the feed sensor.
Problem and Cause
1.
Solution
If the paper is completely fed out of the 1.
Check if the exit sensor actuator is
machine, but Jam 2 occurs, the exit
defective.
sensor is defective.
ƒ
SM
ƒ
Check if the exit sensor
After the paper is completely
actuator is deformed (Check if
discharged, the exit sensor
the lever part is deformed).
4-5
G960
Paper Feeding Problems
actuator should return to the
ƒ
original position to shut the
the assembly part of the exit
photo-sensor. Sometimes it
sensor actuator or if the
takes longer than it should and
actuator is smoothly operated.
does not return.
2.
ƒ
Check if foreign matter or wire
If the paper is rolled in the Fusing
is caught in the actuator exit's
Roller: This occurs when:
operation.
ƒ
ƒ
ƒ
- a Guide claw is broken away 2.
If the paper is stuck in the fusing unit:
or transformed.
disassemble the fusing unit and
- the spring of a Guide claw is
remove the jammed paper. Also clean
broken away or transformed.
the surface of the pressure roller with
- the Heat-Roller or
dry gauze.
Pressure-Roller is seriously
3.
contaminated with toner.
3.
Check whether burrs occur in
Remove the jammed paper after
disassembling the fusing unit: Clean
Paper is accordioned in the fusing unit.
the surface of the pressure roller with
dry gauze.
ƒ
Remove the toner particles
stained on the rib.
ƒ
Check the assemblage and
performance of the exit.
4.3.5 DUPLEX JAM 1
Description:
A message 'Duplex Jam 1' is displayed in an LCD window.
G960
4-6
SM
Paper Feeding Problems
Problem and Cause
1.
2.
When paper cannot trigger the duplex
1.
Replace the HVPS or main board.
2.
When a paper jam occurs on (A) after it
sensor.
is reversed: replace the 2nd exit roller
When paper cannot reach the duplex
after checking its operation.
sensor due to a paper jam in the
3.
Solution
3.
When a paper jam occurs on (B) after it
duplex path.
is reversed: replace the duplex roller
The life of the duplex unit has expired.
after checking its operation.
4.
Replace the duplex unit.
Troubleshooting
4.3.6 DUPLEX JAM 0
Description:
A message 'Duplex Jam 0' is displayed in a LCD window.
Problem and Cause
1.
2.
Solution
1.
Replace a HVPS or main board.
2.
When a leading edge of paper is
When paper cannot pass the duplex
jammed on (A), check the operation of
sensor.
a guide front. If it is worn or defective,
When paper cannot reach to the
replace it.
registration sensor after it has passed
3.
the duplex sensor.
Check the operation of the feed roller
and the registration roller. If they are
worn or defective, replace them.
4.
SM
4-7
Replace the duplex unit.
G960
Paper Feeding Problems
4.3.7 MULTI-FEEDING
Description:
Multiple sheets of paper are fed at once.
Problem and Cause
1.
2.
Solenoid malfunction (the solenoid
does not work properly): Perform
1.
Replace the solenoid if necessary.
"Engine Test Mode".
2.
Clean the pad friction with soft cloth
Pad-Friction is contaminated with
foreign matter. (oil, etc.)
3.
Solution
dampened with IPA (Isopropyl Alcohol).
3.
Use smooth paper.
The face of the paper is bent.
4.3.8 PAPER ROLLED IN THE FUSING UNIT
Description:
Paper rolled in the fusing unit
Problem and Cause
Solution
1.
After disassembling the fusing unit,
clean contamination between the heat
roller and the thermistor and remove
the contamination of the pressure
1.
Contamination of the pressure roller or
heat roller (Background, Hot offset).
2.
roller.
2.
with the background troubleshooting
Check the claws of the fusing unit for
deformities.
If there is a heavy background, repair it
method.
3.
Clean the surface of the heat roller with
IPA or water.
4.
Check the warp or separation of the
print claw and the holder plate claw,
and then manage it.
G960
4-8
SM
Paper Feeding Problems
4.3.9 PAPER ROLLED ON THE OPC DRUM
Description:
Paper is rolled up in the OPC.
Problem and Cause
Solution
1.
Use of normal paper is recommended.
2.
How to remove rolled paper from the
OPC.
1.
Paper is too thin.
2.
The paper is curled.
ƒ
Remove the paper while turning
the OPC against the ongoing
direction.
ƒ
Clean fingerprints on the OPC
Troubleshooting
gently with damp soft cloth.
4.3.10 DEFECTIVE ADF
Description:
ADF does not work properly.
Problem and Cause
1.
Check if ADF rubber and holder rubber
are damaged.
2.
Solution
Check if the document sensors of ADF
1.
part.
2.
If you cannot confirm the damaged part
with the naked eye, try to replace the
Ass’y (3 paper sensors) are normal.
SM
Replace the contaminated or damaged
ADF unit.
4-9
G960
Printing Problems (malfunctions)
4.4 PRINTING PROBLEMS (MALFUNCTIONS)
4.4.1 FUSING UNIT ERROR
Description:
A message “Low Heat Error Cycle Power/ Overheat Error Cycle Power” is displayed in
the LCD panel.
Check for...
1.
Check whether thermostat is open or
not.
2.
Check whether thermistor is open or
not.
3.
Operation is impossible due to a gear
of a fuser being melted.
Solutions
1.
Replace the fusing unit if the
thermostat is open.
2.
Replace the fusing unit if a thermistor
sensor is open.
3.
Check whether the overheat mode
circuit is operating normally or not.
4.
Replace the fusing unit.
4.4.2 LSU (LASER SCANNING UNIT) ERROR
Description:
A message “LSU Motor Error Cycle Power/ LSU Hsync Error Cycle Power” is displayed in
the LCD panel.
Check for...
1.
Check whether the LSU (Laser
Scanning Unit) connector is
disconnected or not.
2.
Check whether the LSU motor is
Solutions
1.
Connect the LSU harness properly.
2.
Replace the LSU.
3.
Replace the main board if the same
error occurs again after replacing the
rotating or not.
3.
G960
LSU.
Check the HSYNC signal.
4-10
SM
Printing Problems (malfunctions)
4.4.3 DEFECTIVE OPERATION (LCD WINDOW 111) DISPLAY
Description:
Strange characters are displayed on the operation panel and buttons are not operational.
Check for...
Solutions
1.
Try again after clearing the memory.
2.
After confirming that the operation
1.
Clear the memory.
2.
Check if the operation panel harness is
panel harness is connected to the
connected to the operation panel board
operation panel board correctly. If it is,
correctly.
then replace the operation panel board
Troubleshooting
and main board in sequence.
4.4.4 DEFECTIVE LCD OPERATION
Description:
Check for...
Solutions
1.
1.
Clear the memory.
2.
Confirm that there is a click sound
The key is wrong itself or wrongly
assembled.
2.
After the key has been replaced, if it is
when a key on the OPE panel is
still wrong, try to replace the operation
pressed.
panel board and the main board in
sequence.
4.4.5 NONFUNCTIONING OF THE FUSING GEAR DUE TO
MELTING
Description:
The motor breaks away from its place due to gear melting.
Check for...
SM
Solutions
4-11
G960
Printing Problems (malfunctions)
Check the fusing unit.
1.
Replace the fusing unit.
2.
Replace the main board.
3.
Replace the power supply board.
4.4.6 PAPER EMPTY
Description:
The paper empty status on the operation panel is on even when paper is loaded in the
cassette.
Check for...
1.
2.
Solutions
Bending or deformation of the paper
empty sensor actuator.
1.
Replace the defective actuator.
The function of the main board is
2.
Replace the main board.
defective. Perform "Engine Test Mode".
4.4.7 PAPER EMPTY WITHOUT INDICATION
Description:
The paper empty status on the operation panel does not come on when the paper
cassette is empty.
Check for...
1.
2.
Solutions
Bending or deformation of the actuator
of the paper empty sensor.
1.
Replace the defective actuator.
The function of the main board is
2.
Replace the main board.
defective. Perform "Engine Test Mode".
G960
4-12
SM
Printing Problems (malfunctions)
4.4.8 DOOR OPEN
Description:
Door open status is on even when the front cover is closed.
Check for...
1.
2.
Solutions
The front cover hook lever may be
1.
Replace the hook lever, if defective.
defective.
2.
Check the insertion of the cover open
Check the connector (CN1) and circuit
of the cover switch section of the main
switch connector.
3.
board.
Replace the main board or cover open
switch.
Troubleshooting
4.4.9 NO BEEP SOUND WHEN THE DOOR IS OPEN
Description:
Door open status does not come on even when the front cover is open
Check for...
Solutions
1.
Check the connector (CN1) and circuit of
Check the insertion of the cover open
switch connector.
the cover switch section of the main board.
2.
Replace the main board or cover open
switch.
4.4.10 DEFECTIVE MOTOR OPERATION
Description:
Main motor is not driving when printing, and paper does not feed into the machine,
resulting in 'Jam 0'.
Check for...
1.
The motor harness or motor PCB may
be defective.
2.
Perform the "Engine Test Mode" and
check the motor operation.
SM
Solutions
1.
Check the motor harness, and then
replace if defective.
2.
4-13
Replace the power supply board.
G960
Printing Problems (malfunctions)
4.4.11 NO POWER
Description:
When system power is turned on, all lamps on the operation panel do not come on.
Check for...
1.
Solutions
Check if the power input and SMPS
output are normal.
2.
Check for functionality of the LED lights 1.
Replace the SMPS.
and LCD display on the front-cover if
Replace the control board.
2.
the operation panel does not show
anything after warming-up.
4.4.12 CURVED VERTICAL LINE
Description:
When printing, vertical lines become curved.
Check for...
Solutions
If the supply of +24v is unstable in the main
board linking with LSU, check drive with
"Engine Test Mode":
G960
1.
Replace LSU.
2.
Replace the main board.
4-14
SM
Printing Quality Problems
4.5 PRINTING QUALITY PROBLEMS
4.5.1 VERTICAL BLACK LINE AND BAND
1.
Straight thin black vertical lines occur in the printing.
2.
Dark black vertical band occurs in the printing.
Problem and Cause
1.
Deformed Doctor-blade or
cleaning-blade, in print cartridge.
2.
3.
Solution
1.
Partial depression or deformation on
If causes one or two occur in the print
cartridge, replace the developer and try
Scratched surface of the charge roller
in the developer.
Troubleshooting
Description:
to print.
2.
Replace the transfer roller if cause
three occurs.
the surface of the transfer roller.
4.5.2 VERTICAL WHITE LINE
SM
4-15
G960
Printing Quality Problems
Description:
White vertical voids in the image.
Problem and Cause
1.
Solution
1.
Foreign matter stuck onto the window
Clean the LSU window with
of internal lenses of LSU mirror.
2.
recommended cleaner (IPA) Clean the
Foreign matter or toner particles
window with a clean cotton swab.
between the developer roller and
2.
blade. (In case that the life of the
reflex mirror with a cotton swab.
light image may occur in front of the
3.
image.)
(Developer cartridge)
4.
developer frame.
No. 4: Open the front cover and check
ribs that correspond to the position of
If the fusing unit is defective, blank
areas occur periodically at the top of a
black image.
No 3: Remove the foreign matter and
burr of the exposure window.
It may occur when burr and foreign
substances are on the window of the
4.
Foreign matter in the LSU: Open the
LSU cover and clean the surface of the
developer has expired, white lines or
3.
Foreign matter stuck onto the window:
the blank areas. Remove if found.
5.
If the problems are not solved, replace
the print cartridge.
4.5.3 HORIZONTAL BLACK BAND
Description:
Dark or blurry horizontal stripes occur in the printing periodically (or continually).
Problem and Cause
G960
Solution
4-16
SM
Printing Quality Problems
1.
Bad voltage terminals contacts to print
1.
Charge, Supply, Develop and Transfer
cartridge.
2.
roller. (Remove toner particles and
The rollers of the print cartridge may be
stained.
paper particles.)
2.
Charge roller = 37.7 mm
Clean each voltage terminal of the
Clean the right gear that has a
relatively small gap of the teeth in the
Supply roller = 53 mm
OPC.
Develop roller = 39 mm
3.
Transfer roller = 45.3 mm
If the malfunction persists, replace the
developer.
Troubleshooting
4.5.4 BLACK/WHITE SPOT
Description:
1.
Dark or blurry black spots occur periodically in the printing.
2.
White spots occur periodically in the printing.
Problem and Cause
1.
Solution
If dark or blurry black spots occur
1.
periodically, the rollers in the print
the Self-test two or three times.
cartridge may be contaminated with
2.
SM
Run OPC cleaning Mode Print and run
2.
In case of 75.5 mm interval
foreign matter or paper particles.
unremovable in 1, remove foreign
( Charge roller: 37.7 mm interval OPC
substances stuck on the OPC location
drum: 75.5 mm interval)
equivalent to black spots and white
If faded areas or voids occur in a black
spots with a dry duster.
image at intervals of 75.5 mm, or black 3.
The transfer roller guarantees 70,000
spots occur elsewhere, the OPC drum
prints in a normal environment. If the
4-17
G960
Printing Quality Problems
surface is probably damaged.
3.
roller's life is expired, replace it.
If a black image is partially broken, the
4.
In case of 37.7 mm interval
transfer voltage is abnormal or the
irremovable in 1, take measures as to
transfer roller's life has expired.
replace the developer cartridge and try
to print out.
5.
Clean the inside of the set of the paper
particles and foreign matter in order to
avoid this problem.
4.5.5 LIGHT IMAGE
Description:
The printed image is light, with no ghost.
Problem and Cause
1.
Solution
Develop roller is stained when the
No 1: Replace the developer cartridge
No 2: Wait 30 minutes after the
machine is powered on before you
2.
Ambient temperature is below 10°C.
3.
Bad contact caused by toner stains on
the high voltage terminal of the HVPS.
self-test and check 1 to 4)
2.
3.
consumed.
Abnormal output from HVPS. (Run
Check if the Toner Save mode is off.
and try to print out.
developer cartridge toner is almost
4.
1.
start printing.
4.
No 3: Clean up the contaminated area
by the toner.
5.
Replace the HVPS if the problems are
not solved by the above four
instructions.
G960
4-18
SM
Printing Quality Problems
4.5.6 DARK IMAGE OR BLACK PAGE
Description:
The printed image is dark or black page.
Solution
1.
No charge voltage in the main board.
1.
Clean the high voltage charge terminal.
2.
Charge voltage is not turned on due to
2.
Check the state of the connector which
bad contacts between the power
connects the main board and HVPS.
supply on the side of the print cartridge 3.
If steps 1 and 2 above do not correct
and charge terminal of HVPS.
the problem, replace the HVPS.
4.5.7 UNEVEN DENSITY
SM
4-19
G960
Troubleshooting
Problem and Cause
Printing Quality Problems
Description:
Print density is uneven between left and right.
Problem and Cause
1.
Solution
The pressure force on the left and right
springs of the transfer roller is not
1.
even; the springs are damaged; the
transfer roller is improperly installed; or
the transfer roller bushing or holder is
damaged.
2.
The life of the developer has expired.
3.
The toner level is not even on the
Replace both the left and right spring
holder.
2.
Gently shake the print cartridge.
3.
Problem with the toner cartridge,
replace the toner cartridge and try to
print out.
developer roller due to a bad blade.
4.5.8 BACKGROUND
Description:
Light dark background appears across entire printed page.
Problem and Cause
1.
Recycled paper has been used.
2.
The life of the developer has expired.
3.
The up-to-down movement of the
transfer roller is swift.
4.
G960
The HVPS is normal.
Solution
1.
Quality is not guaranteed when using
recycled paper.
2.
Replace the toner cartridge.
3.
Clean the bushing on the transfer
roller.
4.
4-20
Replace the HVPS.
SM
Printing Quality Problems
4.5.9 GHOST (1)
Description:
Problem and Cause
1.
Troubleshooting
Ghost image occurs at 75.5 mm intervals of the OPC drum across entire printed page.
Solution
Bad contacts caused by contamination
from toner particles between the high
2.
voltage terminal in the main body and
1.
Clean the contaminated terminals.
the electrode of the developer.
2.
Problem in the toner cartridge, replace
Bad contacts caused by contamination
from toner particles between high
the toner cartridge and try to print.
3.
voltage terminal on the main body and
the HVPS board.
3.
The life of developer has expired.
4.
Transfer roller lifetime (70,000 sheets)
by steps 1 and 2 above.
4.
Abnormally low temperature (below
5.
Wait about one hour after power on
when using the machine.
6.
10°C).
6.
If not solved by step 3, check the
transfer roller lifetime and replace it.
has been exceeded.
5.
Replace the main board if not solved
Problem in the toner cartridge, replace
the toner cartridge and try to print.
Damaged cleaning blade in the
developer.
SM
4-21
G960
Printing Quality Problems
4.5.10 GHOST (2)
Description:
Ghost image occurs at 75.5 mm intervals of the OPC drum on all pages of print jobs.
(When printing on card stock or transparencies using manual feeder)
Problem and Cause
When printing on card stock thicker than
normal paper or transparencies such as
OHP, higher transfer voltage is required.
Solution
Select "Thick Mode" on paper type menu
from the software application setting. After
using, it is recommended that the mode
should be returned to the original setting.
4.5.11 GHOST (3)
Description:
Ghost occurs at 35.2 mm intervals.
Problem and Cause
G960
Solution
4-22
SM
Printing Quality Problems
1.
1.
Life of the developer may be expired.
2.
Abnormal voltage and bad contact of
Problem in the toner cartridge, replace
the toner cartridge and try to print out.
2.
the terminal of the developing roller.
Check the approved voltage of the
supply roller and terminal contact and
adjust if necessary.
Troubleshooting
4.5.12 GHOST (4)
Description:
Ghost image occurs at 88.9 mm intervals.
Problem and Cause
Solution
Disassemble the fuser and remove the
The temperature of the fusing unit is
maintained at a high temperature.
contaminated toner particles on the roller
and clean out any foreign matter between
the thermistor and heat roller. (Caution: can
be deformed)
SM
4-23
G960
Printing Quality Problems
4.5.13 STAINS ON THE FACE OF PAGE
Description:
The background on the face of the printed page is stained.
Problem and Cause
1.
2.
Solution
Toner leakage due to improperly
1.
Replace the toner cartridge.
2.
If the transfer roller is contaminated,
sealed developer.
run OPC Cleaning Mode Print two or
If the transfer roller is contaminated,
three times. And perform Self-Test two
stains on the face of a page may occur.
or three times to remove
contamination.
4.5.14 STAINS ON THE BACK OF PAGE
Description:
The back of the page is stained.
G960
4-24
SM
Printing Quality Problems
Problem and Cause
Solution
1.
Perform the OPC Cleaning Mode Print
two or three times. Run self-test to
remove the contamination of the
transfer roller.
2.
1.
Transfer roller is contaminated.
2.
Pressure roller is contaminated.
Replace the transfer roller if
contaminated severely.
3.
Disassemble the fusing unit and clean
the H/R (Heat Roller) and P/R
(Pressure Roller). And check the area
between H/R and thermistor. If
contaminated, clean the area, taking
caution not to cause deformation of
Troubleshooting
roller.
4.5.15 BLANK PAGE PRINT OUT (1)
Description:
Blank page is printed.
Problem and Cause
Solution
Bad ground contacts in OPC and/or
Remove contamination from the terminals
developer.
of the toner cartridge and the machine.
SM
4-25
G960
Printing Quality Problems
4.5.16 BLANK PAGE PRINT OUT (2)
Description:
1.
Blank page is printed.
2.
One or several blank pages are printed.
3.
When the machine turns on, several blank pages print.
Problem and Cause
Solution
1.
Remove contamination of the terminals
of the toner cartridge.
2.
1.
2.
Perform the engine self test using
Bad ground contacts in OPC and/or
"Engine Test Mode: code 0" to check if
developer.
the Solenoid is normal.
Abnormal solenoid.
3.
If not solved by steps 1 and 2 above,
replace the main board.
4.
Turn the power off, delete print data
from PC and try printing again.
G960
4-26
SM
Fax and Phone Problems
4.6 FAX AND PHONE PROBLEMS
4.6.1 NO DIAL TONE
Description:
When on-hook button is pressed, there is no dial tone.
Problem and Cause
1.
Check if the telephone line cord is
there is no dial tone, then replace the
connected to "TEL LINE" correctly.
2.
Check if it makes a "click" sound when
the "On Hook Dial" key is pressed.
3.
LIU board.
2.
panel unit may be defective. Replace
between the LIU board and the main
4.
Check if the speaker is connected
correctly.
If you cannot hear the click sound of
the "On Hook Dial" key, the operation
Check the connection of the harness
board.
If the telephone cord is normal but
the operation panel unit.
3.
Check the speaker connection, and try
to replace it.
4.
Lastly, replace the main board.
4.6.2 DEFECTIVE MF DIAL
Description:
The MF DIAL is not functioning.
Problem and Cause
Solution
1.
1.
2.
3.
Check if the telephone line is
operation panel unit may be defective.
connected correctly.
Try to replace the operation panel unit.
When the BUTTON KEY is pressed,
2.
If there is a "click" sound, after
check if there is a 'click' sound.
checking the connection of the
Check the connection of HARNESS
HARNESS between the LIU and the
between the LIU and the Main PBA.
main board, try to replace the harness.
3.
SM
If there is no OHD "click" sound, the
4-27
If the problem still persists, then
G960
Troubleshooting
1.
Solution
Fax and Phone Problems
replace the LIU and the main board in
sequence.
Notes: Product supports the MF DIAL type
only.
4.6.3 DEFECTIVE FAX FORWARD/RECEIVE
Description:
The FAX FORWARD/RECEIVE is not functioning.
Problem and Cause
1.
2.
Solution
Check if a dial tone can be heard by
1.
If the MODEM testing is normal and
pressing OHD.
there is no dial tone, then try to replace
Check if a RECEIVE tone can be heard
the LIU board.
while MODEM testing in the TECH
2.
Mode.
If the MODEM testing is abnormal, try
to replace the main board.
4.6.4 DEFECTIVE FAX FORWARD
Description:
RECEIVE is functioning, but FORWARD is not functioning or the received data is broken.
Problem and Cause
1.
Solution
Check if there is NOISE when pressing
on-hook dial.
2.
Check the RECEIVE condition by
trying to forward a FAX to another fax
If it makes NOISE while using on-hook dial,
machine from the forwarding side FAX. replace or repair the telephone line.
3.
Check if the telephone line connected
to the Product is contaminated or gets
stripped off or down.
G960
4-28
SM
Fax and Phone Problems
4.6.5 DEFECTIVE FAX RECEIVE (1)
Description:
FORWARD is functioning, but RECEIVE is not functioning or the received data are
broken.
Problem and Cause
1.
Check if there is NOISE when pressing
on-hook dial.
2.
Solution
Check the RECEIVE condition by
trying to receive a FAX at another fax
If it makes NOISE while on-hooking,
replace or repair the telephone line.
Troubleshooting
machine.
4.6.6 DEFECTIVE FAX RECEIVE (2)
Description:
The received data is lengthened or cut in the printing.
Problem and Cause
1.
2.
Solution
Check if there is NOISE when pressing 1.
If it makes NOISE, rearrange the
on-hook dial.
telephone line. (Refer to 'Defective
Ask to the forwarding side, check the
FAX RECEIVE'.)
image quality of another machine
2.
receiving a FAX.
Check if the FAX status of the
forwarding side is also normal.
4.6.7 DEFECTIVE FAX RECEIVE (3)
Description:
The phone is ringing continuously, but it cannot receive.
Problem and Cause
Solution
Check if the RECEIVE Mode is TEL MODE Even when the RECEIVE Mode is changed
SM
4-29
G960
Fax and Phone Problems
or FAX MODE.
to FAX MODE, it cannot receive, then
replace the LIU and the main board in
sequence.
4.6.8 DEFECTIVE FAX RECEIVE (4)
Description:
The received data is reduced by more than 50% in the printing.
Problem and Cause
Check the FAX status of the forwarding
side.
Solution
After checking the data of the forwarding
side, correct the FAX of the forwarding
side.
4.6.9 DEFECTIVE AUTOMATIC RECEIVING
Description:
The automatic receiving function is not working.
Problem and Cause
Solution
1.
If the RECEIVE Mode is set to the TEL
MODE, reset it to the FAX MODE.
Check if the RECEIVE Mode is TEL MODE 2.
Even after the RECEIVE Mode is
or FAX MODE.
changed to the FAX Mode, if it cannot
receive, then try to replace the LIU and
the main board in sequence.
G960
4-30
SM
Copy Problems
4.7 COPY PROBLEMS
4.7.1 WHITE COPY
Description:
Blank page is printed out when copying.
Problem and Cause
Solution
1.
Room light can transit a thin original.
2.
Remake shading profile in the tech
1.
See if the Scan-Cover is open.
2.
Check the shading profile.
3.
Check white/black reference voltage
3.
Replace U60 if it is defective.
on the main board.
ƒ
U60-154 = 0.5V
ƒ
U60-155 = 3.3V
Troubleshooting
mode.
4.7.2 BLACK COPY
Description:
Black page is printed out when copying.
Problem and Cause
1.
Check the CCD problem on the main
board.
2.
Check shading profile.
Solution
1.
Check the CCD harness contact.
2.
Remake shading profile in tech mode.
4.7.3 ABNORMAL NOISE
Description:
There is noise when copying.
Problem and Cause
SM
Solution
4-31
G960
Copy Problems
1.
Check the Scanner Motor for any
1.
Motor, and check for any mechanical
mechanical disturbance.
2.
Check the Motor Driver in Driver PBA.
Check the right position of the Scanner
disturbance in the CCD carriage part.
2.
If any driver is defective, replace it.
4.7.4 DEFECTIVE IMAGE QUALITY
Description:
The copied image is light or bad.
Problem and Cause
Solution
1.
Check shading profile.
1.
Remake shading profile in tech mode.
2.
Check the gap between original and
2.
A gap above 0.5 mm can cause a
scanner glass.
3.
G960
Check printing quality.
blurred image.
3.
4-32
See “Print” troubleshooting.
SM
Scanning Problems
4.8 SCANNING PROBLEMS
4.8.1 DEFECTIVE PC SCAN
Description:
The PC Scan is not functioning at all.
Problem and Cause
Solution
1.
If the cable connection to the PC is not
connected properly, reconnect it.
After confirming that it is proper by
1.
Check the Cable (USB or Parallel).
performing a PC printing test related to
2.
Check if the driver is installed properly.
driver setup, if it is not so, reinstall it.
3.
Check if copy function operates
(Refer to User's Manual.)
normally.
3.
If copy function works, replace the
main board. If copy function doesn’t
work, replace the CCD module and try
again.
4.8.2 DEFECTIVE IMAGE QUALITY OF PC SCAN
Description:
The image PC scanned is not clear or bad.
Problem and Cause
1.
Solution
Check the waveform form by
performing a CCD test in TECH Mode.
2.
Check if the resolution is set too low in
PC Scan options. (Refer to User's
1.
replacing the CCD module.
2.
If the resolution is set too low,
familiarize the user with this setting.
Manual.)
SM
If the CCD waveform is abnormal, try
4-33
G960
Troubleshooting
2.
Network Problems
4.9 NETWORK PROBLEMS
4.9.1 GENERAL PROBLEMS
Problem
System does not function with
some wrong values entered by
mistake while configuring.
Solution
Possibly the parameters in PortThru are corrupted.
Restart the system and set to factory defaults via
the printer front panel or via your computer using
SyncThru.
Try pinging from the same system on which SNMP
Not able to access from SNMP
Manager. SyncThru is unable to
automatically detect print servers.
manager is running. If this does not succeed, there
is likely a problem with network connectivity
between the manager and PortThru. If ping
succeeds, verify that community names with
sufficient permissions have been used.
Check the environment as described in Auto
SyncThru is unable to
Detection of Print Server. Check NetWare file
automatically detect print servers.
server consoles for error messages regarding
nodes with conflicting network numbers.
When attempting to set the IP
address to the print server, DHCP,
BOOTP, or RARP cannot be seen.
On Network Interface in SyncThru, you should set
“Static” to “IP Address Assignment Method” in the
TCP/IP tab. You should set the IP address, Subnet
Mask and Default Gateway to print server.
1.
Print server does not print using
TCP/IP protocol.
Check whether TCP/IP protocol is installed in
your PC.
2.
Check whether your PC is on the same
network with print server.
Use SyncThru to see if PortThru indicates that
Unable to print in NetWare
queue is serviceable. If not, the login permissions
environment.
may have changed or the configuration information
for queues, printers and print servers may have
G960
4-34
SM
Network Problems
Problem
Solution
been changed. Verify using PCONSOLE and
NWADMIN that the configuration is correct and
check the job queue to see if the print job exists.
Check that NetWare is enabled on PortThru. Check
that Check Job is configured on PortThru.
1.
The status of printer is displayed
‘unknown’ in SyncThru.
Check the protocol of your PC and install
DLC/LLC or IPX/SPX protocol.
2.
Assign IP Address to PortThru using the front
panel.
empty while adding a port and the
printer doesn’t function.
Check the protocol of your PC and install DLC/LLC
or IPX/SPX protocol.
Assign IP Address to PortThru using the front
Troubleshooting
The name of printer is displayed
panel.
4.9.2 MACINTOSH PROBLEMS
Problem
Solution
1.
Make sure the printer is connected to network
correctly.
2.
Make sure the printer is configured in SyncThru
using the new name.
3.
After turning on the printer, wait three minutes,
then check it again.
The printer name is not displayed
4.
in the Chooser.
Make sure that your Macintosh is connected to
the network through Ethernet.
5.
When the Macintosh and network printer are in
the same network, check above items again.
Otherwise check whether the router can
support AppleTalk protocol. If the router can not
support the AppleTalk protocol, then ask the
network manager to solve this problem.
SM
4-35
G960
Network Problems
Problem
Solution
1.
Make sure the PS option is installed in your
printer correctly.
The printer drops letters.
2.
Make sure the SIMM provided with PS option is
installed correctly. Check that the total memory
is 12MB by printing a self-test page.
4.9.3 WINDOWS PROBLEMS
Problem
Solution
1.
Verify that the printer power switch is turned on
and the ‘READY’ message is displayed on the
printer front panel.
2.
Verify that the LAN cable is plugged into the
PortThru card.
3.
Verify that the second LED on the PortThru
card blinks.
ƒ
If the second LED blinks regularly,turn off
the printer, then turn it back on. If the
After installing PortThru, the print
problem continues, contact your network
server name is not displayed under
administrator.
New Print Server in SyncThru.
ƒ
If the first LED on the PortThru card does
not blink, check that the card is installed
snugly. If the problem continues, contact
your network administrator.
4.
Confirm whether the print server and the PC
which searches for the New Print Server is on
the same LAN. If you want to search for a New
Print Server, your PC and the print server
should be on the same LAN.
The print server name is displayed, Select the Network menu from the front panel
but the test page is not printed.
G960
menus. Check that the test page is printed. If the
4-36
SM
Network Problems
Problem
Solution
Network menu is not displayed, or the test page is
not printed, turn off the printer, then turn it back on.
An IP address should be assigned to upgrade the
Firmware upgrade process is
completed. But upgrading is not
executed.
Firmware.
Make sure that IP address is entered in Print
Server.
If an IP address is not entered, reassign it and try
again.
1.
Check whether LAN cable is connected to the
printers.
ƒ
Check whether LAN cable is
Troubleshooting
connected to the printers
yourself.
ƒ
Make sure that there are
connected printers shown in
network neighborhood. If not,
check the communication
status of the printers.
ƒ
the computers, try ping
SyncThru is unable to
automatically detect printers.
If an IP address is assigned to
command.
2.
If the protocols of NPC are disabled, DLC/LLC
should be installed in the computers.
ƒ
If SyncThru is unable to
detect printers with DLC/LLC
installed in the computers,
check whether NPC and PC
are on the same LAN.
ƒ
If LAN is connected by
routers, SyncThru is unable to
detect the printers.
3.
If more than one of the protocols of NPC are
enabled and DLC/LLC is installed in the
SM
4-37
G960
Network Problems
Problem
Solution
computers, check NPC and PC are on the
same LAN.
ƒ
If LAN is connected by
routers, SyncThru is unable to
detect the printers. In this
case, one of the protocols
which are enabled in NPC
should be installed in the
computers.
4.
In case that the protocol which is enabled in
NPC is installed in the computers:
ƒ
If TCP/IP installed, check
entry values of IP address,
subnet mask and default
gateway.
The printer does not print.
Try Add a Port.
4.9.4 SYNCTHRU INSTALLATION PROBLEMS
Problem
Solution
1.
Make sure the previously installed SyncThru is
uninstalled.
2.
If SyncThru is uninstalled, restart your PC.
3.
If the problem continues, In Windows 95/98,
"File Transfer Error" message
delete the “sammon.dll” file in the system
appears when you execute
directory of Windows in MS-DOS mode, restart
Installation.
Windows and reinstall it. In Windows NT, stop
the spooler service with’ Services ’in Control
Panel, delete the “sammon.dll” file in the
system32 directory of Windows NT, start
spooler service and reinstall it.
G960
4-38
SM
Network Problems
Problem
"Unable to add the Port list of
ports" message appears, when you
Verify that your PC restarts after installing
SyncThru.
Troubleshooting
add a port.
Solution
SM
4-39
G960
Periodic Defective Image
4.10 PERIODIC DEFECTIVE IMAGE
If defective images regularly occur in print-outs, it may be due to a defective or damaged
roller.
Refer to the table below and check the condition of the roller.
No
Roller
Defective image
Typical defect
White spot on black image or black
1
OPC Drum
75.5 mm
2
Charge Roller
37.7 mm
Black spot
3
Supply Roller
53.2 mm
Light or dark horizontal image band
4
Development Roller
39.2 mm
Horizontal image band, image ghost
5
Transfer Roller
47.1 mm
Image ghost
6
Heat Roller
88.9 mm
Black spot and image ghost
7
Pressure Roller
101.3 mm
Black spot on the backside
G960
spot, image ghost
4-40
SM
Troubleshooting
Periodic Defective Image
SM
4-41
G960
SERVICE TABLES
Tech Mode
5. SERVICE TABLES
5.1 TECH MODE
5.1.1 HOW TO ENTER TECH MODE
In service (tech) mode, the technician can check the machine and perform various tests to
determine the cause of a malfunction.
While in Tech mode, the machine still performs all normal operations.
To enter Tech Mode
To enter Tech Mode, press the following keys in sequence:
"Menu" → "#" → "1" → "9" → "3" → "4" → "Menu"
The display shows "Tech Mode> Tech menu”
Press “OK” to enter Tech menu.
To exit the Tech Mode
To exit Tech Mode, press the following keys in sequence:
5.1.2 TECH MODE
There are several function items in Tech Mode for servicing. The list below shows all items.
Select Function with “'” “(” keys and press “OK” key to enter each item.
Press “Back” key to return to the previous step.
ƒ
The display shows “Ready to Copy” after 30 seconds without any operation.
ƒ
Press “menu” key to show “Tech menu” on the display.
Function
Data Setup
SM
Item
Contents
Send Level
9-15 dBm
DTMF Level (high/low)
0-15
Pause Time
1-9
Dial Mode
Tone/Pulse
5-1
G960
Service
Tables
"Stop" → "Menu" → "#" → "1" → "9" → "3" → "4"
Tech Mode
Function
Item
Contents
33.6 / 28.8 / 14.4 / 12.0 / 9.6 / 4.8
Modem Speed
(K bps)
Error Rate
5% / 10%
Clear All Memory
Select Country
Total Page CNT
Enter Password
Clear Count
(1934 enter)
FLT Scan CNT
ADF Scan CNT
Used Toner CNT
Switch Test
Modem Test
Machine Test
Dram Test
Result and Memory size
Rom Test
English Firmware version
Pattern Test
1~7/ all
Shading Test
Shading and Print /Print
All Report
Protocol
Configuration
Report
Error Info
Usage Page
*1
Component Check
*2
Service Support
Supplies Info
G960
5-2
SM
Tech Mode
ƒ
*1: Country setting, F/W upgrade and test pattern procedures.
ƒ
*2: Switch test, modem test, DRAM test, ROM test, pattern test and shading.
5.1.3 DATA SETUP
Send Level
This lets you set the level of the transmission signal. The Tx level should normally be under
-12 dBm.
Dial Mode
Select the dialing mode according to the user's line status.
ƒ
Dial: Electrical type of dial (Default)
ƒ
Pulse: Mechanical type of dial
Modem Speed
This lets you set the maximum modem speed. The value of the maximum modem speed is
checked for both transmitter and receiver when the fax makes communication with a
remote set. The lowest value is used. It is best set at 33.6Kbps (default).
Error Rate
Service
Tables
The Baud rate automatically adjusts to 2400 bps when the error rate goes past the set
value. This ensures that the error rate stays below the set value.
You can select the rate between 5% and 10%.
Clear All Memory
Use this function to reset the system to the default set at the factory.
This function resets the system to the initial value when the machine does not work
correctly. Values are set to the default values. The machine will not keep data set by the
user. This procedure does not clear the counter data values.
<Procedure>
1.
Set the [MEMORY CLEAR] in tech mode.
2.
Push the ENTER button.
3.
The country name will show. You can see all available countries when you scroll by
pressing the left key or right key.
SM
ƒ
EU default (UK)
ƒ
North America default (USA/Canada)
ƒ
Asia default (Singapore)
ƒ
China default (China)
5-3
G960
Tech Mode
ƒ
4.
You cannot change the default country values.
Push the ENTER button. This clears the memory. Then it changes it to the country
code that you set.
ƒ
Do this procedure after you replace the main board. If you do not do this procedure,
the system will not operate correctly.
Flash Upgrade
The firmware upgrade has these functions:
ƒ
Local and remote.
For the firmware updating procedure, refer to "Firmware Upgrade".
5.1.4 MACHINE TESTS
Switch Test
This lets you test the keys on the operation panel. The result shows on the LCD display
when you press a key.
Modem Test
This lets you hear various transmission signals from the modem and to check the modem,
amplifier and speaker. The modem part of the main board, amplifier, speaker or speaker
harness is faulty if no transmission signal sound is heard.
DRAM Test
This lets you test the machine's DRAM. The LCD shows ‘OK’ if the memory operates
correctly.
ROM Test
This lets you test the machine's ROM. The result and the software version show on the
LCD display.
Pattern Test
The pattern printout lets you make sure that the printer mechanism operates correctly. This
function is for factory use only.
Shading Test
The lets you set the optimum scan quality determined by the specific characteristics of the
CCD (Charge Coupled Device). Do the following procedure to check the condition of the
CCD unit if copy image quality is poor.
G960
5-4
SM
Tech Mode
Procedure
1) Select the "Shading test > Shading & Print" at the Tech Mode.
2) Press "OK" key twice.
4) The CCD is defective if the printed image is not the same as the sample image shown
ƒ
Make sure the cover is closed when you test the CCD.
5.1.5 REPORTS
Protocol List
This shows the sequence of the CCITT group 3 T.30 protocol for the most recent sending
or receiving operation. This list lets you check for send and receive errors.
Configuration Report
This shows a list of the user system data settings and tech mode settings.
SM
5-5
G960
Service
Tables
3) CCD shading profile gets printed after the image gets scanned.
EDC (Engine Diagnostic Control) Mode
5.2 EDC (ENGINE DIAGNOSTIC CONTROL) MODE
5.2.1 EDC SETUP
EDC (Engine Diagnostic Control) is utilized to test and check whether each of the functions
of the machine and hardware modules are normal or not. All of the test functions are
controllable via the keys and LCD window on the panel.
5.2.2 OPERATING EDC
In order to enter the EDC mode, the access method should be guarded because this mode
is only used for engineers (or similarly qualified people), and is not for end users.
ƒ
Entering the mode, the message, "COMPONENT TEST " is displayed.
ƒ
In this mode, a service engineer should press the "Menu" key to search for each
function.
Entering EDC
1.
Check that the printer is turned on.
2.
Wait until the printer reaches ready mode.
3.
Press the following six keys in order within two seconds:
"Menu" → "stop" → "left" → "Back" → "OK" → "Right"
4.
Confirm that the message "COMPONENT TEST" is displayed.
5.
Press "Menu" key.
6.
Follow the usage instructions displayed for each function.
ƒ
The procedure and content above may vary, depending on the situation.
Exiting EDC
Press "Stop/Clear" key to exit the EDC.
5.2.3 COVER OPEN/CLOSE STATUS
This function is to check the status of the cover or door open/close.
Usage
1.
Press the arrow keys "'/(" until "0.Cover Status" message is displayed on the panel.
2.
Press the "OK" key.
3.
Press the arrow keys "'/(" to find a desired function (Refer to the table below).
4.
Press the "OK" key.
5.
Press the "OK" key to execute the function or “Back” to return to the previous step.
G960
5-6
SM
EDC (Engine Diagnostic Control) Mode
Function
Function Name
Front Cover
Fuser Door
Description
Display (LCD)
"Open" shows when cover is open.
Front Cover
"Closed" shows when cover is closed.
[Closed]/[Open]
"Open" shows when fuser door is open.
Fuser Door
"Closed" shows when fuser door is closed.
[Closed]/[Open]
The procedure and content above may vary, depending on the situation.
ƒ
5.2.4 SENSOR STATUS
These Functions are to check a current state (normal or not) of each Sensor.
Usage
Press the arrow keys "'/(" until "1.Sensor Status" message is displayed on the panel.
2.
Press the "OK" key.
3.
Press the arrow keys to find a desired function. (Refer to the table below)
4.
Press the "OK" key.
5.
Touch a sensor you would like to test.
6.
Check the message on the LCD.
Service
Tables
1.
Function
Sensor
Display (LCD)
Description
Before touching
RegiSensor
Check the message on the Regi. Sensor
Regi. Sensor
LCD.
[Without Paper]
[With Paper]
T1 Feed Sensor
T1 Feed Sensor
[Without Paper]
[With Paper]
Exit Sensor
Exit Sensor
[Without Paper]
[With Paper]
T1 FeedSensor
ExitSensor
SM
After touching
5-7
G960
EDC (Engine Diagnostic Control) Mode
DJam1Sensor
Bypass Empty
T1 Paper Empty
T2 Paper Empty
ƒ
DJam1 Sensor
Djam1 Sensor
[Without Paper]
[With Paper]
Bypass Empty
Bypass Empty
[Empty]
[Present]
T1 Paper Empty
T1 Paper Empty
[Empty]
[Present]
T2 Paper Empty
T2 Paper Empty
[Empty]
[Present]
The procedure and content above may vary, depending on the situation.
5.2.5 MOTOR TEST
These functions are to check the current status.
Usage
1.
Press the arrow keys "'/(" until "2.Motor Test" message is displayed on the panel.
2.
Press the "OK" key.
3.
Press the arrow keys "'/(" to find a desired function (Refer to the table below).
4.
Press the "OK" key.
5.
Press the "OK" key to execute the function.
6.
Scroll using the arrow keys "'/(" and select [OFF], then press the “OK” key to stop
the function.
ƒ
Press the “Back” key to return to the previous screen at any time during this
procedure.
Function Name
Main Mtr Nor.
Main Mtr Slow
G960
Description
Display (LCD)
The motor will run at normal speed or Main Mtr Nor.
stop.
[ON] / [OFF]
The motor will run at slow speed or
Main Mtr Slow
stop.
[ON] / [OFF]
5-8
SM
EDC (Engine Diagnostic Control) Mode
Function Name
Exit Mtr Fwd
Exit Mtr Bwd
Duplex Mtr Fwd
Duplex Mtr Bwd
T2 Feed Motor
ƒ
Description
Display (LCD)
The motor will run in the forward
Exit Mtr Fwd
direction.
[ON] / [OFF]
The motor will run in the backward
Exit Mtr Bwd
direction.
[ON] / [OFF]
The motor will run in the forward
Duplex Mtr Fwd
direction or stop.
[ON] / [OFF]
The motor will run in the backward
Duplex Mtr Bwd
direction or stop.
[ON] / [OFF]
The motor will run in the forward
T2 Feed Motor
direction or stop.
[On] / [OFF]
The procedure and content above may vary, depending on the situation.
5.2.6 FAN TEST
Service
Tables
These functions are to check the current status of all fans.
Usage
1.
Press the arrow keys "'/(" until "3.Fan Test" message is displayed on the panel.
2.
Press the "OK" key.
3.
Press the arrow keys "'/(" to find a desired function (Refer to the table below).
4.
Press the "OK" key.
5.
Press the "OK" key to execute the function.
6.
Scroll using the arrow keys "'/(" and select [OFF], then press the “OK” key to stop
the function.
ƒ
Press the “Back” key to return to the previous screen at any time during this
procedure.
SM
5-9
G960
EDC (Engine Diagnostic Control) Mode
Function
Function Name
Description
Fuser Fan
The fan will run or stop.
Duplex Fan
The fan will run or stop.
ƒ
Display (LCD)
Fuser Fan
[ON] / [OFF]
Duplex Fan
[ON] / [OFF]
The procedure and content above may vary, depending on the situation.
5.2.7 CLUTCH/SOLENOID
These functions are to check a current state (normal or not) of the solenoids and clutches.
Usage
1.
Press the arrow keys "'/(" until "4.Clutch/Sol. Test" message is displayed on the
panel.
2.
Press the "OK" key.
3.
Press the arrow keys "'/(" to find a desired function (Refer to the table below).
4.
Press the "OK" key.
5.
Press the "OK" key to execute the function.
6.
Scroll using the arrow keys "'/(" and select [OFF], then press the “OK” key to stop
the function.
ƒ
Press the “Back” key to return to the previous screen at any time during this
procedure.
.
Function
Function Name
Description
T1 P-up Clutch
The clutch will run or stop.
T2 P-up Clutch
The clutch will run or stop.
G960
5-10
Display (LCD)
T1 P-up Clutch
[ON] / [OFF]
T2 P-up Clutch
[ON] / [OFF]
SM
EDC (Engine Diagnostic Control) Mode
Function Name
Description
Display (LCD)
Bypass Clutch
The clutch will run or stop.
Regi. Clutch
The clutch will run or stop.
ƒ
Bypass Clutch
[ON] / [OFF]
Regi. Clutch
[ON] / [OFF]
The procedure and content above may vary, depending on the situation.
5.2.8 FUSER CONTROL
This function is to check a current state (normal or not) of the fuser unit.
Usage
Press the arrow keys "'/(" until "5.Fuser Ctrl" message is displayed on the panel.
2.
Press the "OK" key.
3.
Press the arrow keys "'/(" to find a desired function (Refer to the table below).
4.
Press the "OK" key.
5.
Press the "OK" key to execute the function.
6.
Scroll using the arrow keys "'/(" and select [OFF], then press the “OK” key to stop
Service
Tables
1.
the function.
ƒ
Press the “Back” key to return to the previous screen at any time during this
procedure.
Function Name
Description
Display (LCD)
Remarks
The fuser unit will control
the power for fixing and
Temp Control
display the current
Temp Control
[xxx] is a current
temperature on the panel.
[OFF] / [ON] [xxx]
temperature.
Fuser Temp [xxx]
[xxx] is its ADC.
The target temperature is
160°C.
Fuser Temp. A
SM
The ADC will be displayed
on the panel.
5-11
G960
EDC (Engine Diagnostic Control) Mode
ƒ
The procedure and content above may vary, depending on the situation.
5.2.9 LSU
These functions are to check a current state (normal or not) of the Laser Scanning Unit.
Usage
1.
Press the arrow keys "'/(" until "6.LSU Control" message is displayed on the panel.
2.
Press the "OK" key.
3.
Press the arrow keys "'/(" to find a desired function (Refer to the table below).
4.
Press the "OK" key.
5.
Press the "OK" key to execute the function.
6.
Scroll using the arrow keys "'/(" and select [OFF], then press the “OK” key to stop
the function.
ƒ
Press the “Back” key to return to the previous screen at any time during this
procedure.
Function Name
LD Power 1
LSU Motor
Description
The LD will have the previously
LD Power 1
saved value.
[OFF] / [ON]
The motor will run or stop.
Ready to print (laser diode on,
LSU Motor Read
Stable polygon motor speed)
the message, TBA
LSU Hsync
ƒ
Display (LCD)
LSU Motor
[OFF] / [ON]
LSU Motor Rdy
[OFF] / [ON]/ [0/1]
LSU motor Rdy
Hsync signal check
[OFF] / [ON]/ [0/1]
Hsync: If the receiving part in LSU detects the beam, Hsync is generated.
5.2.10 BIAS CONTROL
These functions are to check whether the control for HVPS is normal or not.
G960
5-12
SM
EDC (Engine Diagnostic Control) Mode
Usage
1.
Press the arrow keys "'/(" until "7.Deve Control" message is displayed on the panel.
2.
Press the "OK" key.
3.
Press the arrow keys "'/(" to find a desired function (Refer to the table below).
4.
Press the "OK" key.
5.
Press the "OK" key to execute the function.
6.
Scroll using the arrow keys "'/(" and select [OFF], then press the “OK” key to stop
the function.
ƒ
Press the “Back” key to return to the previous screen at any time during this
procedure.
Function
THV Plus Bias
THV Minus Bias
DEV Bias
MHV Bias
ƒ
SM
Description
Display (LCD)
The bias will have the
THV Plus Bias
previously saved value.
[OFF] / [ON]
The bias will have the
THV Minus Bias
previously saved value.
[OFF] / [ON]
The bias will have the
DEV Bias
previously saved value.
[OFF] / [ON]
The bias will have the
MHV Bias
previously saved value.
[OFF] / [ON]/ [0]
Remarks
Service
Tables
Function Name
The procedures and content above may vary, depending on the situation.
5-13
G960
Firmware Download
5.3 FIRMWARE DOWNLOAD
5.3.1 FIRMWARE UPGRADE
The Firmware Upgrade function has two methods, Local and Remote.
Local
Firmware upgrade utility
ƒ
Only support USB, not Network.
1.
Connect USB cable.
2.
Double-click the upgrade utility (*.exe) and then the display shown above appears.
3.
Select “Local (USB)” and Click “F/W Update”.
4.
"FLASH UPGRADE..." is displayed on the LCD for about 3 minutes.
5.
The messages shown below are displayed in turn on the LCD for about 5 minutes.
ƒ
“Update FW Image...”
ƒ
“Please Wait...”
G960
5-14
SM
Firmware Download
6.
Wait till machine reboots automatically.
Remote
Web Image Monitor Type104 mode
Print out the System data list for back up the data and setting.
2.
Download the Firmware on the PC.
3.
Access the .Web image Monitor Type 104 with the correct IP address.
1.
Select. Maintenance as shown above.
Service
Tables
1.
SM
5-15
G960
Firmware Download
2.
Click the browse button and select the Printer Firmware file you saved in the
PC.
3.
Click the. Upgrade. Button.
4.
Make sure the firmware was completely updated.
ƒ
G960
Do not turn off the power of the machine while updating the FW.
5-16
SM
DETAILED DESCRIPTIONS
System Descriptions
6. DETAILED DESCRIPTIONS
6.1 SYSTEM DESCRIPTIONS
6.1.1 FEEDING SECTION
Feeding Method: Universal Cassette Type
Feeding Standard: Center Loading
Feeding Capacity: (Cassette) 250 Sheets (75g/20lb StandardPaper)
6.1.2 TRANSFER UNIT
The transfer assembly consists of Transfer Roller and spire gear. The transfer roller
delivers the toner of the OPC drum to the paper.
6.1.3 DRIVER UNIT
Main Motor is for the cassette, by-pass tray and toner cartridge
Exit Motor is for the fusing unit, exit roller and initial duplex feeding
Duplex Motor is for the duplex feeder
6.1.4 FUSING UNIT
Fusing Type: [Halogen Lamp (R2) E-Coil type (Elbert) / Halogen Lamp (Dove) ]
Heat Roller: [φ28.3 with 0.1 Crown]
Pressure Roller: [Electrically conductive]
Detailed
Descriptions
Thermistor - Temperature Detecting Sensor
Thermostat - Overheat Protection Device
Media Separating System: Teflon Coating with SUS Plate Claw System
Overheat protection:
1st: H/W cuts off when overheating is detected
2nd: S/W cuts off when overheating is detected
3rd: Thermostat cuts off the power
Trouble
Temperature Control
Open Heat Error
90°C or less for 45 seconds at Warm-up
Over Heat Error
230°C or more for 10 seconds or
SM
6-1
G960
System Descriptions
240°C or more for 5 seconds
Stand-by: 130°C or less for 10 seconds
Low Heat Error
Operating: 35°C or less for 7 seconds at consecutive
tow pages printing
Safety device
Power to the fusing unit is cut when the front cover is open.
Overheating safety device for customer's safety.
Surface temperature of the fusing cover is kept under 80°C.
6.1.5 LSU (LASER SCANNING UNIT)
LSU consists of LD (Laser Diode) and polygon motor control. When the controller
generates, the printing signal LD will turn on and Polygon motor starts. If the receiving part
in LSU detects the beam, Hsync is generated. When the rotation of the polygon motor is
steady, it is time when the LSU is ready status for printing. If either of two conditions is not
satisfied, LSU error is expected.
Trouble
Polygon Motor Error
Hsync Error
Failure Analysis
No steady rotation of Polygon Motor
In spite of steady rotation of Polygon Motor, no generation of
the Hsync signal
6.1.6 SCANNER
Scanning Method: Color CCD (600 x 1200 dpi)
Scan speed: SDMP (Single Document Multiple Copy)" 28cpm/MDSP (Multi-all document
Multiple Copy") 20cpm
G960
6-2
SM
System Descriptions
1. Cleaning Roller
5. Transfer Roller
2. Doctor Blade
6.OPC Drum
3. Supply Roller
7. Cleaning Blade
4. Development Roller
8. Charge Roller
ƒ
OPC Cleaning: Mechanical Cleaning with the cleaning blade.
ƒ
Recycled toner: Space for recycled toner.
ƒ
No shutter for protecting the OPC Drum
Detailed
Descriptions
6.1.7 TONER CARTRIDGE
The OPC unit and the developer unit are contained within the toner cartridge. The OPC unit
consists of the OPC drum and charging roller, and the developer unit consists of the toner,
toner cartridge, supply roller, developing roller, and the blade.
ID is classified by CRUM in AIO and firmware.
SM
6-3
G960
System Descriptions
6.1.8 DUPLEX UNIT
Available Paper sizes: Letter, Oficio, Legal, Folio, and A4
6.1.9 OPTIONAL TRAY (SCF)
For customer convenience in managing paper
Capacity: 250 sheets
6.1.10 CONTROLLER
The main controller consists of ASIC (CHORUSm) parts, Memory parts, Engine Interface
parts and functions as Bus Control, I/O Handling, drivers & PC Interface by CPU.
The Engine Board and the Controller Board are in one integrated board, which consists of
(functionally) the CPU section and the printing section. The CPU handles bus control, I/O,
drivers, and PC interface. The main board sends current image and video data to the LSU
and controls the electro photography process for printing, as well as operation of motor
circuits (paper feed, etc.), clutches, pre-transfer lamp, and fans.
Signals from the paper feed jam sensor and paper empty sensor are directly input to the
main board.
6.1.11 ELECTRICAL COMPONENTS
Input Circuit Sensor
Paper Empty Sensor:
The Paper Empty Sensor, via an actuator, senses whether there is paper in the cassette or
not. When there is no paper, this is indicated by the Status lamp changing from green to
red.
By-pass Sensor
By operation of an Actuator on the frame, the by-pass Sensor (Photo interrupter) on the
HVPS transmits the paper condition to the CPU (whether it's empty or not).
Paper Feed Sensor
When paper passes the actuator (feed sensor part), it detects the signal of the Photo
interrupter; informs the paper feeding state to the CPU.
If the feed sensor doesn't detect paper within one second after the paper is fed, paper
Jam0 occurs (indicated by the Status lamp turning red). Whether developer is inserted or
not is detected by the AIO sensor. After the developer is installed, the sub-AIO sensor can
read toner cartridge information from contact with the AIO sensor. If the toner cartridge
information is invalid, it will be indicated as invalid by a red Status light.
G960
6-4
SM
System Descriptions
Paper Exit Sensor
HVPS exit sensor detects whether paper successfully exits machine by monitoring the
on/off time of the sensor and indicating JAM2 by the Status lamp turning red when there is
a jam.
Cover Open Sensor
The Cover Open sensor is located on the HVPS. After the front cover is opened, +24VS
(DC fan, Solenoid, Main Motor, Polygon motor part of LSU and HVPS), which is supplied to
each unit, is cut off. When cover-open is sensed, the Status lamp will turn to red.
DC Fan / Solenoid Control
This is driven by a transistor and controlled by D14 (FAN MAIN), E16 (FAN DUPLEX), C23
(PICK-UP CLUTCH), C18 (REGI CLUTCH), and D15 (BY-PASS CLUTCH) of the CPU.
The fan is driven by turning on the TR, and is turned off when the sleep mode is selected.
There are three solenoids, which are driven by: paper pick-up; registration; and by-pass
signals.
Motor Control
The main motor control circuits are on the main motor drive unit. The main controller has
interfacing circuits - there is a motor driver IC on the motor control board of the motor drive
unit. A motor driver IC is used in this case.
6.1.12 SMPS AND HVPS BOARD
The SMPS supplies DC Power to the System.
HVPS board creates the high voltage of THV/MHV/Supply/Dev and supplies it to the
developer part for creating the best condition for displaying the image. The HVPS part
takes 24V and outputs high voltage for THV/MHV/BIAS, and the outputted high voltage is
supplied to the toner, OPC cartridge, and transfer roller.
SMPS (Switching Mode Power Supply)
This is the power source for the entire system. It is assembled as an independent module,
and is mounted at the side.
It consists of the SMPS section, which supplies the DC power for driving the system, and
the AC heater control section, which supplies the power to fuser. SMPS has two output
channels. Which are +5V and +24V.
SM
6-5
G960
Detailed
Descriptions
It takes 110V/220V and outputs the +5V, +24V to supply the power to the main board. The
SPECIFICATIONS
General Specifications
7. SPECIFICATIONS
7.1 GENERAL SPECIFICATIONS
7.1.1 GENERAL SPECIFICATIONS
Configuration
Paper capacity
Desktop
Main tray
250 sheets
By-pass tray
50 sheets
Optional paper feed
unit
250 sheets
Face down: 150 sheets
Output tray
Face up: 1 sheet
A4, A5, Letter, Legal, Folio, Executive,
Main tray
Oficio, B5
A4, A5, A6, Letter, Legal, Folio,
Executive, Oficio, B5, 3" x 5", Monarch,
Paper size
No.10, DL, C5, C6
By-pass tray
Custom size:
Max.: 216 x 356mm (8.5 x 14 inch)
Paper weight
ADF
SM
Main tray
60-90 g/m2 (16-24 lb)
By-pass tray
60-163 g/m2 (16-43 lb)
Paper weight
47-105 g/m2 (12.5-28 lb)
Capacity
50 sheets
Width
142 x 216mm (5.6 x 8.5 inch)
Length
148 x 356mm (5.8 x 14 inch)
7-1
Specifications
Min.: 76 x 127mm (3 x 5 inch)
G960
General Specifications
Thickness
Machine size
(W x D x H)
0.075 - 0.13 mm (0.003 - 0.005 inch)
460 x 435 x 450 mm (17.7 x 17.1 x 18 inch)
Net Weight ; 18.9 Kg(41.6 lb)
Weight
Gross Weight; 22 Kg
Net with a starter AIO ctrg. Gross; with package
Operation panel
16 x 2 characters
Total Counter
Electronic Counter
Energy Saver Mode
Selectable 5/15/30/45 minutes
Power consumption
Power supply
Noise
Warm up time
Average
520 W
Power save mode
20 W (energy start compliant)
Low voltage
110 - 127 V
High voltage
220 - 240 V
Input frequency
50/60 (± 3Hz)
Printing
54 dB
Copy
55 dB
Standby
39 dB
From standby
20 seconds
From cold status
25seconds
ACV
1,400 prints
MCV
4,000 prints
Machine life
5 years, 250,000 prints (whichever comes first)
Yield parts
Pick-up roller
150 K prints
Friction Pad Ass'y
150 K prints
G960
7-2
SM
General Specifications
Environmental
Standard
Energy Saver Mode
Transfer roller
70 K prints
Fuser unit
80 K prints
US version: Energy star program
EU version: Energy star program
Default 30
Selectable 5/10/15/30/60/120
7.1.2 PRINTER
Simplex
30 ppm LT, 28 ppm A4 (600 dpi)
Duplex
21 ppm LT, 19 ppm A4 (600 dpi)
Printer drivers
PCL6, PS3
Auto emulation sensing
Supported
Font
45 Scalable, 1 Bitmap
Energy Save Mode
5/10/15/30/45 minutes
Resolution
Toner save mode
First print time
Normal
600 x 600 dpi
RET
1200 x 1200 dpi
Supported
From standby
8.5 seconds
From cold status
33.5 seconds
Duplex print
Supported
Printable area
208 x 273 mm (Letter)
Halftone grayscales
256 levels
Interface option
SM
Specifications
Print speed
IEEE1284/ USB 2.0/ Ethernet 10/ 100 base Tx (Embedded
type)
7-3
G960
General Specifications
Network
Protocol
TCP/IP, NetWare, Ethertalk
CPU
CPU core: over 300 MHz, ARM 920T
Standard/ Max.
96/ 320MB
Type
SDRAM
Expand Memory
Memory
Slot Type
Compression
SDRAM DIMM
Yes
Technology
Windows 98/Me/NT4.0/2000/XP/2003
Operation System
Windows Vista
Macintosh 10.3-10.4
7.1.3 SCANNER
Scan method
Scan speed for
data through
Color CCD
Linearity
Approximately 15 seconds (USB 2.0)
Gray
Approximately 20 seconds (USB 2.0)
Color
Approximately 30 seconds (USB 2.0)
Linearity
Approximately 15 seconds (USB 2.0)
Gray
Approximately 20 seconds (USB 2.0)
Color 75/ 300 dpi
Approximately 30 seconds (USB 2.0)
ADF
Scan speed for
data through
platen
Resolution for
scan data
600 x 1200 dpi (optical, mono color)
Enhanced:
4800 x 4800 dpi
Halftone
256 levels
Scan area
Platen
G960
216 x 297* mm (8.5 x 11.69 inch)
7-4
SM
General Specifications
ADF
Scan to
Scan depth
216 x 326* mm (Legal)
Application, USB
Color: 24 bit
Monochrome: 1 bit for line art, 8 bit for grayscale
*: Effective scanning width is 208 mm.
7.1.4 COPIER
Text, Text/Photo: 600 x 300
Scan
Photo: 600 x 600 (Platen), 600 x 300
(ADF)
Print
600 x 600 dpi
8.5 seconds: Platen
From standby
First copy time
15 seconds: ADF
From cold status
SDMC*1
Copy speed (letter)
Original alignment
Zoom
33.5 seconds
Letter: 30 cpm
A4: 28 ccm
MDMC*2
20 cpm (A4)
Platen
Rear left
ADF
Center
Platen
25% - 400%
ADF
25% - 100%
Multi-copy
1 - 99
Copy mode
Text, Mixed, Photo (all supported)
Preset
Supported
SM
7-5
Specifications
Copy resolution
G960
General Specifications
Darkness control
3 levels (LED)
Collation copy
Supported: 600 x 300 dpi (ADF only)
Auto return to default
mode
Changeable default
mode
Special copy
Maximum original size
Scan Depth
Supported: (off/15/30/60/180 seconds)
Contrast, image, reduce/enlarge, number of copies
N-up
2-up, 4-up
ADF only
Auto fit copy
Supported (Platen only)
2-sided copy
Supported (Platen only)
Clone
Supported (Platen only)
Poster
Supported (Platen only)
Max. Document Width: Max. 216 mm (8.5”)
Effective Scan Width: Max. 208 mm (8.2”)
Color: 24 bit
B&W: 1 bit Linearity, 8 bit for Gray scale
Windows:
TWAIN OS
98 SE/ ME/ NT 4.0/ 2000/ XP/ 2003
Macintosh:
OS 10.3, 10.4
*1: SDMC means "Single Document Multiple Copy".
*2: MDMC means "Multi-all document Multiple Copy".
7.1.5 TELEPHONE
Handset
No
On hook dial
Supported
Search
Supported (phone book)
G960
7-6
SM
General Specifications
1 touch dial
30 locations
Speed dial
200 locations (00 - 199)
Telephone answering
device I/F
Supported
Tone/Pulse
Supported (selected in Tech Mode)
Pause
Supported
Auto redial
Supported
Last number redialed
Supported
Distinctive ring
Supported
Caller ID
No
External phone interface
Supported
Tx/Rx Journal: Supported
Report and list print out
Confirmation: Supported
Auto dial list: Supported
System data list: Supported
Ring volume (Off, Low, Medium, High)
Sound control
Key volume (On, Off)
Alarm volume: (On, Off)
Specifications
Speaker (On, Off)
7.1.6 FAX
Compatibility
ITU-T, G3
Communication system
PSTN/PABX
SM
7-7
G960
General Specifications
Modem speed
33.6 Kbps
Compression
MH/MR/MMR/JPEG/JBIG
Color fax
Supported (send only)
Error correction mode
Supported
Resolution
Standard
203 x 98 dpi
Fine
203 x 196 dpi
Super fine
300 x 300 dpi
Scan speed (ADF)
Approx. 2.5 seconds/LT (regardless of resolution)
Duplex fax print out
Yes (printed on both sides of paper)
Multiple page scan
21 ppm/LT
Receive mode
Fax, TEL, Ans/Fax, DRPD
Capacity
6 MB (optional memory not supported)
Max locations to
store one group
229 locations
dial
Memory
Functions
G960
Fax forward
Supported (On, Off)
Broadcasting
Supported (up to 239 locations)
Cover page
Not supported
Delayed fax
Supported (Tx only)
Memory RX
Supported
Voice request
Not supported
TTI
Supported
RTI
Supported
Polling
Not supported
7-8
SM
General Specifications
Earth/Recall
Not supported
Auto reduction
Supported
Junk fax barrier
Supported
Secure receive
Supported
Memory back-up
Supported (Maximum 72 hours)
One-touch dial
30 locations
Speed Dial/Group Dial
230 (including 30 one-touch) / 200 locations
Summer Time
No
Specifications
(Day Light Saving Time)
SM
7-9
G960
APPENDIX
Block Diagram
8. APPENDIX
8.1 BLOCK DIAGRAM
Appendix
8.1.1 SYSTEM BLOCK DIAGRAM
SM
8-1
G960
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