TOSHIBA MY-1027 Paper Feed Unit SERVICE MANUAL
Below you will find brief information for Paper Feed Unit MY-1027. The MY-1027 is an additional paper feed unit that can be installed under the standard drawer of the main equipment. It's designed to automatically feed paper and has a capacity of up to 250 sheets of plain paper. The unit features a drawer detection switch, a jam access cover opening/closing switch, a paper empty sensor and a paper feed sensor. It has two transport clutches that allow for both high and low-speed paper transportation. The MY-1027 can be used to expand the paper feeding capabilities of your main equipment.
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File No. SME05002800
R05092196900-TTEC
Ver00_2005-12
SERVICE MANUAL
PAPER FEED UNIT
MY-1027
© 2005 TOSHIBA TEC CORPORATION All rights reserved
Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of TOSHIBA TEC CORPORATION. No patent liability is assumed, however, with respect to the use of the information contained herein.
General Precautions for Installation/Servicing/Maintenance for the MY-1027
The installation and service should be done by a qualified service technician.
1) When installing the MY-1027 to the Equipment, be sure to follow the instructions described in the
“Unpacking/Set-Up Procedure for the MY-1027” booklet which comes with each unit of the MY-1027.
2) The MY-1027 should be installed by an authorized/qualified person.
3) Before starting installation, servicing or maintenance work, be sure to turn OFF and unplug the equipment first.
4) When servicing or maintaining the MY-1027, be careful about the rotating or operation sections such as gears, pulleys, sprockets, cams, belts, etc.
5) When parts are disassembled, reassembly is basically the reverse of disassembly unless otherwise noted in this manual or other related materials. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, toothed washers to the wrong places.
6) Basically, the machine should not be operated with any parts removed or disassembled.
7) Delicate parts for preventing safety hazard problems (such as switches, sensors, etc. if any) should be handled/installed/adjusted correctly.
8) Use suitable measuring instruments and tools.
9) During servicing or maintenance work, be sure to check the serial No. plate and other cautionary labels (if any) to see if they are clean and firmly fixed. If not, take appropriate actions.
10)The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband, because the ICs on it may be damaged due to static electricity. Before using the wrist band, pull out the power cord plug of the equipment and make sure that there is no uninsulated charged objects in the vicinity.
11)For the recovery and disposal of used MY-1027, consumable parts and packing materials, follow the relevant local regulations/rules should be followed.
12)After completing installation, servicing and maintenance of the MY-1027, return the MY-1027 to its original state, and check operation.
CONTENTS
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1
MY-1027 CONTENTS
MY-1027 CONTENTS
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1. SPECIFICATION
Function:
Paper Size:
Paper Thickness:
Transport speed:
Drawer capacity:
Dimensions:
Weight:
Power supply:
Automatic paper feed single cassette front loading
A3 to B5-R / LD to LT-R
Plain paper 64 to 80 g/m
2
(17 to 21 lbs. Bond)
91 mm/sec./ 110 mm/sec (2 speed control)
Paper height 28 mm (Approx. 250 sheets)
530 (W) x 577 (D) x 125 (H) mm (Protrutions excluded)
Approx. 5.0 kg
5 V DC, 24 V DC (Supplied from copier)
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MY-1027 SPECIFICATION
MY-1027 SPECIFICATION
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2. GENERAL DESCRIPTION
2.1
Main Components
Drawer tray
Gear
2
Drawer
Fig. 2-1
Jam accsess cover
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MY-1027 GENERAL DESCRIPTION
2.2
Sectional View
1 2 3 4 5 6 7 8 9
10
Fig. 2-2
1 Drawer
2 Paper feed unit PC board (PFU board)
3 Pickup solenoid
4 Paper empty sensor
5 Pickup roller
6 Drawer detection switch
7 Paper feed sensor
8 Feed roller
9 Jam accsess cover opening/closing switch
10 Drawer tray
11 Separation craw
12 Transport clutch (High speed / Low speed)
11 12
MY-1027 GENERAL DESCRIPTION
2 - 2
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2.3
Electric Parts Layout
PFU
SOL
SW1
Fig. 2-3
SW2
S2
S1
CLT1
CLT2
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MY-1027 GENERAL DESCRIPTION
2.4
Symbols and Functions of Various Components
The column "P-I" shows the page and item number in the parts list.
Symbol Name Function
S1 Paper empty sensor
S2
SW1
SW2
CLT1
CLT2
SOL
PFU
Paper feed sensor
Jam access cover opening/ closing switch
Drawer detection switch
Transport clutch (H)
Transport clutch (L)
Pickup solenoid
PFU control PC board
Detecting presence/absence of paper in the drawer
Detecting paper jam and paper transport at the feeding section
Detecting opening/closing of the jam access cover
Detecting presence/absence of the drawer
Driving the feed roller (High speed)
Driving the feed roller (Low speed)
Controlling the power transmission of the pick up roller
Controlling the paper feed unit
Remarks P-I
MY-1027 GENERAL DESCRIPTION
2 - 4
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2.5
Diagram of Signal Blocks
PFU Equipment
PFUFEDCLT-H
PFUFEDCLT-L
PFUPSOL
PFUEMPSW
PFUFEDSW
PFUSIDECOV
PFUCSTSW
DC 24V
DC 5V
PFUCNT
Driver
GND
Transport clutch (High speed) (CLT1)
Transport clutch (Low speed) (CLT2)
Pickup solenoid (SOL)
Paper empty sensor (S1)
Paper feed sensor (S2)
Jam accsess cover opening/closing switch (SW1)
Drawer detection switch (SW2)
Fig. 2-4
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MY-1027 GENERAL DESCRIPTION
MY-1027 GENERAL DESCRIPTION
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3. DESCRIPTION OF OPERATIONS
3.1
Outline
The PFU is an additional paper feed unit and installed under the standard drawer (in the main equipment).
The PFU consists of 1 drawer, 2 sensors, 2 switches, 2 magnetic clutches and 1 solenoid.
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MY-1027 DESCRIPTION OF OPERATIONS
3.2
Picking up System
1
2
3
4
Fig. 3-1
The PFU has no motor for driving. Paper is fed and transported by transmitting the driving force of the main motor to the gear.
The driving force from the main equipment is transmitted to the paper feed and transport rollers through the gear.
When the drawer is inserted to the PFU, the drawer tray goes up by the spring force and paper can be fed.
Paper is picked up by the motion of the pickup solenoid.
When the pickup solenoid is turned ON, the pickup roller rotates and the paper is picked up from the drawer.
The pickup roller is semicircular and it stops at the home position for every rotation with the latch of the pickup solenoid.
The paper is separated with the separation claw.
MY-1027 DESCRIPTION OF OPERATIONS
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3.3
Paper Feed System
Transport clutch (H)
Transport clutch (L)
Fig. 3-2
The transport clutch (L/H) is turned ON when it transports paper and transmits the driving force from the equipment to the feed roller through the gear.
The transport clutch (Low speed) is turned ON when the paper is picked up from the PFU drawer or when the low speed transportation is performed for printing on the equipment. (Transportation speed:
91 mm/sec)
The transport clutch (High speed) is turned ON when the high speed transportation is performed to transport the paper which has passed through the paper feed sensor to the registration position. (Transportation speed: 110 mm/sec)
High speed transportation is also performed when the paper is transported from the PFP to the registration position. (When the PFP is connected)
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MY-1027 DESCRIPTION OF OPERATIONS
MY-1027 DESCRIPTION OF OPERATIONS
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4. DISASSEMBLY AND ASSEMBLY
Be sure to take off the PFU unit from the equipment before assembling/disassembling the unit.
[A] Pickup solenoid
(1) Remove 3 screws and take off the rear cover.
Fig. 4-1
Rear cover
4
(2) Disconnect 1 connector.
(3) Remove 1 screw and take off the pickup solenoid with bracket.
(4) Remove 1 screw and take off the pickup solenoid.
Bracket
Fig. 4-2
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4 - 1
Pickup solenoid
Fig. 4-3
MY-1027 DISASSEMBLY AND ASSEMBLY
[B] Pickup clutch
(1) Take off the drawer.
(2) Take off the pickup solenoid.
(3) Remove 1 bushing and 1 E-ring.
(4) Remove the pick up clutch.
E-ring
Pickup clutch
Fig. 4-4
Bush
[C] Pickup roller
(1) Take off the drawer.
(2) Rotate the pickup roller shaft counter-clockwise.
Note:
Because the tension is applied to the pickup roller shaft by the pickup clutch when it is rotated counter-clockwise, be sure to hold the shaft while replacing the roller.
(3) Release 2 latches each to take off 2 pickup rollers.
Note:
Be sure to install the pickup roller in the correct direction when reassembling it.
Pickup roller
Fig. 4-5
MY-1027 DISASSEMBLY AND ASSEMBLY
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[D] Transport clutch (H/L)
(1) Open the jam access cover.
(2) Remove 1 screw and take off the right rear cover.
(3) Disconnect 2 connectors.
(4) Rotate 2 clutch holders and take off the clutch holders with clutches.
Fig. 4-6
Right rear cover
Clutch holder
(5) Remove 2 clutch holders and take off the clutches.
Note:
When installing the clutch, be careful of the position of the rotation stopper, pin number of the connector, and type of the clutch.
Connector
Fig. 4-7
3 pin
Transport clutch (H)
Transport clutch (L)
2 pin
Rotation stopper
Clutch holder
Fig. 4-8
December 2005 © TOSHIBA TEC MY-1027 DISASSEMBLY AND ASSEMBLY
4 - 3
4
[E] Feed roller
(1) Remove 1 spring.
Spring
(2) Remove 2 clips and 2 bushes.
(3) Remove the feed roller with gears.
Fig. 4-9
Clip
Bushing
Feed roller
Clip
(4) Remove 1 E-ring. Slide the gear and remove
1 pin.
E-ring
Fig. 4-10
Pin
Bushing
MY-1027 DISASSEMBLY AND ASSEMBLY
4 - 4
Fig. 4-11
December 2005 © TOSHIBA TEC
(5) Slide the gears and remove 1 pin and pull out the gears.
Notes:
• Be careful of each position (number of teeth, direction) of the gear.
• Make sure the stopper of the gear bracket in the correct position.
[F] Paper feed sensor
(1) Disconnect 1 connector.
(2) Remove 1 screw and take off the sensor with the bracket.
1
Fig. 4-12
Bracket
2
Pin
4
(3) Release 2 latches and take off the paper feed sensor.
Fig. 4-13
Feed sensor
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Fig. 4-14
MY-1027 DISASSEMBLY AND ASSEMBLY
[G] Paper empty sensor
(1) Disconnect 1 connector.
(2) Remove 1 screw and take off the sensor with the bracket.
(3) Release 2 latches and take off the paper empty sensor.
Fig. 4-15
Paper empty sensor
Bracket
Fig. 4-16
[H] Jam access cover switch
(1) Remove 1 screw and take off the right rear cover.
(2) Disconnect 1 connector.
(3) Release 2 latches and take off the jam access cover switch.
MY-1027 DISASSEMBLY AND ASSEMBLY
Connector
4 - 6
Jam access cover switch
Fig. 4-17
December 2005 © TOSHIBA TEC
[I] Drawer detection switch
(1) Take off the drawer.
(2) Disconnect 1 connector.
(3) Release 2 latches and take off the drawer detection switch.
[J] PFU control PC board
(1) Take off the rear cover.
(2) Disconnect 3 connectors.
(3) Release 4 lock supports and take off the ADF board.
Lock support
Drawer detecton switch
Fig. 4-18
Connector
PFU Board
Lock support
Fig. 4-19
4
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MY-1027 DISASSEMBLY AND ASSEMBLY
MY-1027 DISASSEMBLY AND ASSEMBLY
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5. ADJUSTMENT
The PFU is not adjusted for itself.
However, if the paper fed from the PFU drawer is misaligned horizontally from the one fed from the drawer of the main equipment, adjust the deviation.
5.1
Adjustment Procedure of Horizontal Deviation
A: The center of the printed image shifts to the front side. : Move the drawer catcher to the front side.
B: The center of the printed image shifts to the rear side. : Move the drawer catcher to the rear side.
A: Shift to the front side
Feeding from equipment
[Rear]
B: Shift to the rear side
Feeding from equipment
[Rear]
Feeding direction
Center
Feeding direction
Center
[Front]
Feeding from PFU
Fig. 5-1
[Front]
Feeding from PFU
5
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5 - 1
MY-1027 ADJUSTMENT
<Procedure>
(1) Loosen 1 screw.
(2) Move the drawer catcher to the front or rear side.
(3) Tighten the 1 screw.
Fig. 5-2
(B)
(A)
MY-1027 ADJUSTMENT
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5.2
Drawer Cover Position Adjustment
Adjust the drawer position as follows when the sideways deviation adjustment in Chapter 5.1 is performed or the misalignment with the drawer of the equipment is found.
(1) Pull out the drawer and loosen 3 screws.
(2) Move the drawer cover to the front or rear side to adjust the gap between the PFU and the drawer cover evenly.
(3) Tighten 3 screws.
5
Fig. 5-3
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MY-1027 ADJUSTMENT
MY-1027 ADJUSTMENT
5 - 4
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6. TROUBLESHOOTING
1. Paper is not picked up.
Is there any deformation or wear of the pickup roller?
È
Æ YES Replace the pickup roller.
NO
Does the pickup roller rotate? (Output check: Perform 101 before performing 202)
È
Æ NO Replace the pickup solenoid or fix the breakage of the drive system.
YES
Is the lift-up mechanism of the drawer normal?
È
Æ NO Fix the lift-up mechanism.
YES
Is the paper empty sensor normal? (Input check: [Interrupt] button turned OFF, 6, LED5)
È
Æ NO Replace the paper empty sensor.
YES
Fan the paper and load it again.
2. Multiple sheets of paper are fed in one go.
Is the paper damp?
È
Æ YES Replace the paper.
NO
Is the paper separation claw deformed?
È
Æ YES Fix or replace the paper separation claw.
NO
Fan the paper and load it again.
6
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MY-1027 TROUBLESHOOTING
3. Paper is picked up, but is not fed to the equipment.
Does the feed roller rotate? (Output check: Perform 101 before performing 202)
È
Æ NO Replace the drive gear or transport clutch (L).
YES
Is the feed sensor normal? (Input check: [Interrupt] button turned OFF, 7, LED5)
È
Æ NO Replace the paper feed sensor.
YES
Check the feed roller and replace it if it is worn or deformed.
4. Paper skews or deviates sideways.
Is the paper correctly set?
È
Æ NO Fan the paper and load it again.
YES
Is the width of the paper guide properly adjusted?
È
Æ NO Adjust the width of the guide to that of the paper.
YES
Check if the marks of the right and left scales for the drawer cover position are on the same number. Perform sideways deviation adjustment if necessary.
5. The PFU does not operate.
Check if the connection with the equipment is normal. (Input check: [Interrupt] button turned
OFF, 8, LED4)
È
Æ NO Connect the connector correctly or replace the harnesses.
YES
Replace the PFU board.
MY-1027 TROUBLESHOOTING
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7. MAINTENANCE
7.1
Periodic Maintenance
1
2
Fig. 7-1
Symbols used in the checklist
Cleaning Lubrication/Coating
A: Clean with alcohol
B: Clean with soft pad, cloth or vacuum cleaner
L: Launa 40
SI: Silicon oil
W: White grease
(Molykote X5-6020)
AV:Alvania No.2
Replacement
The number of sheets consumed before replacement
(Value x 1,000).
R: Replace if deformed or damaged
Operation check
O: After cleaning or replacement, confirm there is no problem
Preventive Maintenance Checklist
Note:
Page-Item (P-I) is described in the column of the Parts list.
Item to check
1 Pickup roller
2 Feed roller
Cleaning
A
A
Lubrication/
Coating
Replacement
(x1,000)
90
Operation check
Parts list
(P-I)
3-12
3-16
Remarks
7
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MY-1027 MAINTENANCE
MY-1027 MAINTENANCE
7 - 2
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8. CIRCUIT DIAGRAM / HARNESS DIAGRAM
8.1
Assembly Of PC Board
Fig. 8-1
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8 - 1
MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM
8
8.2
Harness Diagram
MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM
Fig. 8-2
8 - 2
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8.3
Circuit Diagram
( Low speed ( High speed
December 2005 © TOSHIBA TEC
Fig. 8-3
8 - 3
MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM
8
MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM
8 - 4
December 2005 © TOSHIBA TEC
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Key Features
- Automatic paper feed
- Single cassette, front loading
- A3 to B5-R / LD to LT-R paper sizes
- Plain paper 64 to 80 g/m2 (17 to 21 lbs. Bond)
- 91 mm/sec. / 110 mm/sec transport speed (2 speed control)
- Drawer capacity: Approx. 250 sheets
- Drawer detection switch
- Jam access cover opening/closing switch
- Paper empty sensor
- Paper feed sensor