MY-1027_SM_EN_Ver00

SERVICE MANUALPAPER FEED UNIT

MY-1027

File No. SME05002800R05092196900-TTECVer00_2005-12

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.

December 2005 TOSHIBA TEC MY-1027 CONTENTS

1

CONTENTSMY-1027

1. SPECIFICATION ........................................................................................................... 1-12. GENERAL DESCRIPTION............................................................................................ 2-1

2.1 Main Components................................................................................................................ 2-12.2 Sectional View ..................................................................................................................... 2-22.3 Electric Parts Layout............................................................................................................ 2-32.4 Symbols and Functions of Various Components................................................................. 2-42.5 Diagram of Signal Blocks..................................................................................................... 2-5

3. DESCRIPTION OF OPERATIONS ............................................................................... 3-13.1 Outline ................................................................................................................................. 3-13.2 Picking up System ............................................................................................................... 3-23.3 Paper Feed System............................................................................................................. 3-3

4. DISASSEMBLY AND ASSEMBLY ............................................................................... 4-15. ADJUSTMENT .............................................................................................................. 5-1

5.1 Adjustment Procedure of Horizontal Deviation .................................................................... 5-15.2 Drawer Cover Position Adjustment...................................................................................... 5-3

6. TROUBLESHOOTING .................................................................................................. 6-17. MAINTENANCE ............................................................................................................ 7-1

7.1 Periodic Maintenance .......................................................................................................... 7-1

8. CIRCUIT DIAGRAM / HARNESS DIAGRAM ............................................................... 8-18.1 Assembly Of PC Board........................................................................................................ 8-18.2 Harness Diagram................................................................................................................. 8-28.3 Circuit Diagram.................................................................................................................... 8-3

MY-1027 CONTENTS December 2005 TOSHIBA TEC

2

December 2005 TOSHIBA TEC MY-1027 SPECIFICATION

1 - 1

1

1. SPECIFICATIONFunction: Automatic paper feed single cassette front loadingPaper Size: A3 to B5-R / LD to LT-RPaper Thickness: Plain paper 64 to 80 g/m2 (17 to 21 lbs. Bond)Transport speed: 91 mm/sec./ 110 mm/sec (2 speed control)Drawer capacity: Paper height 28 mm (Approx. 250 sheets)Dimensions: 530 (W) x 577 (D) x 125 (H) mm (Protrutions excluded)Weight: Approx. 5.0 kgPower supply: 5 V DC, 24 V DC (Supplied from copier)

MY-1027 SPECIFICATION December 2005 TOSHIBA TEC

1 - 2

December 2005 TOSHIBA TEC MY-1027 GENERAL DESCRIPTION

2 - 1

2

2. GENERAL DESCRIPTION

2.1 Main Components

Fig. 2-1

Drawer tray

Drawer

Gear

Jam accsess cover

MY-1027 GENERAL DESCRIPTION December 2005 TOSHIBA TEC

2 - 2

2.2 Sectional View

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)

1 2 3 4 5 6 7 8 9

10 11 12


2 - 3

2

2.3 Electric Parts Layout

Fig. 2-3

PFU

S1S2

SW2

SW1

SOL

CLT2

CLT1


2 - 4

2.4 Symbols and Functions of Various ComponentsThe column "P-I" shows the page and item number in the parts list.

Symbol Name Function Remarks P-I

S1 Paper empty sensor Detecting presence/absence of paper in the drawer

S2 Paper feed sensor Detecting paper jam and paper transport at the feeding section

SW1 Jam access cover opening/closing switch

Detecting opening/closing of the jam access cover

SW2 Drawer detection switch Detecting presence/absence of the drawer

CLT1 Transport clutch (H) Driving the feed roller (High speed)

CLT2 Transport clutch (L) Driving the feed roller (Low speed)

SOL Pickup solenoid Controlling the power transmission of the pick up roller

PFU PFU control PC board Controlling the paper feed unit


2 - 5

2

2.5 Diagram of Signal Blocks

Fig. 2-4

PFU

Drawer detection switch (SW2)

Paper feed sensor (S2)

Jam accsess cover opening/closing switch (SW1)

Equipment

GND

Driver

Transport clutch (High speed) (CLT1)

Transport clutch (Low speed) (CLT2)

Pickup solenoid (SOL)

Paper empty sensor (S1)

PFUFEDCLT-H

PFUFEDCLT-L

PFUPSOL

PFUEMPSW

PFUFEDSW

PFUSIDECOV

DC 24V

DC 5V

PFUCNT

PFUCSTSW


2 - 6

December 2005 TOSHIBA TEC MY-1027 DESCRIPTION OF OPERATIONS

3 - 1

3

3. DESCRIPTION OF OPERATIONS

3.1 OutlineThe PFU is an additional paper feed unit and installed under the standard drawer (in the main equip-ment).The PFU consists of 1 drawer, 2 sensors, 2 switches, 2 magnetic clutches and 1 solenoid.

MY-1027 DESCRIPTION OF OPERATIONS December 2005 TOSHIBA TEC

3 - 2

3.2 Picking up System

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.

14

3

2

December 2005 TOSHIBA TEC MY-1027 DESCRIPTION OF OPERATIONS

3 - 3

3

3.3 Paper Feed System

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. (Trans-portation speed: 110 mm/sec) High speed transportation is also performed when the paper is transported from the PFP to the registra-tion position. (When the PFP is connected)

Transport clutch (H) Transport clutch (L)

MY-1027 DESCRIPTION OF OPERATIONS December 2005 TOSHIBA TEC

3 - 4

December 2005 TOSHIBA TEC MY-1027 DISASSEMBLY AND ASSEMBLY

4 - 1

4

4. DISASSEMBLY AND ASSEMBLYBe 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

(2) Disconnect 1 connector.(3) Remove 1 screw and take off the pickup

solenoid with bracket.

Fig. 4-2

(4) Remove 1 screw and take off the pickup solenoid.

Fig. 4-3

Rear cover

Bracket

Pickup solenoid

MY-1027 DISASSEMBLY AND ASSEMBLY December 2005 TOSHIBA TEC

4 - 2

[B] Pickup clutch

[C] Pickup roller

(1) Take off the drawer.(2) Take off the pickup solenoid.

P. 4-1 "[A] Pickup solenoid"(3) Remove 1 bushing and 1 E-ring.(4) Remove the pick up clutch.

Fig. 4-4

(1) Take off the drawer.(2) Rotate the pickup roller shaft counter-clock-

wise.Note: 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: Note: Be sure to install the pickup roller in the cor-rect direction when reassembling it.

Fig. 4-5

Bush

Pickup clutch

E-ring

Pickup roller


4 - 3

4

[D] Transport clutch (H/L)

(1) Open the jam access cover.(2) Remove 1 screw and take off the right rear

cover.

Fig. 4-6

(3) Disconnect 2 connectors.(4) Rotate 2 clutch holders and take off the

clutch holders with clutches.

Fig. 4-7

(5) Remove 2 clutch holders and take off the clutches.

Note: Note: When installing the clutch, be careful of the position of the rotation stopper, pin number of the connector, and type of the clutch.

Fig. 4-8

Right rear cover

Clutch holder

Connector

2 pin

3 pin

Clutch holder

Rotation stopper

Transport clutch (H)

Transport clutch (L)


4 - 4

[E] Feed roller

(1) Remove 1 spring.

Fig. 4-9

(2) Remove 2 clips and 2 bushes.(3) Remove the feed roller with gears.

Fig. 4-10

(4) Remove 1 E-ring. Slide the gear and remove 1 pin.

Fig. 4-11

Spring

Clip

Bushing

Feed roller Clip

Bushing

PinE-ring


4 - 5

4[F] Paper feed sensor

(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.

Fig. 4-12

(1) Disconnect 1 connector.(2) Remove 1 screw and take off the sensor with

the bracket.

Fig. 4-13

(3) Release 2 latches and take off the paper feed sensor.

Fig. 4-14

Pin

1

2

Bracket

Feed sensor


4 - 6

[G] Paper empty sensor

[H] Jam access cover switch

(1) Disconnect 1 connector.(2) Remove 1 screw and take off the sensor with

the bracket.

Fig. 4-15

(3) Release 2 latches and take off the paper empty sensor.

Fig. 4-16

(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.

Fig. 4-17

Bracket

Paper empty sensor

Connector

Jam access cover switch


4 - 7

4

[I] Drawer detection switch

[J] PFU control PC board

(1) Take off the drawer.(2) Disconnect 1 connector.(3) Release 2 latches and take off the drawer

detection switch.

Fig. 4-18

(1) Take off the rear cover.(2) Disconnect 3 connectors.(3) Release 4 lock supports and take off the ADF

board.

Fig. 4-19

Drawer detecton switch

PFU Board

Lock support

Connector

Lock support


4 - 8

December 2005 TOSHIBA TEC MY-1027 ADJUSTMENT

5 - 1

5

5. ADJUSTMENTThe 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 DeviationA: 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.

Fig. 5-1

Feeding direction

Center

[Rear]

[Front]

Feeding from equipment

Feeding from PFU

B: Shift to the rear sideA: Shift to the front side

Center

Feeding direction

Feeding from equipment

Feeding from PFU

[Rear]

[Front]

MY-1027 ADJUSTMENT December 2005 TOSHIBA TEC

5 - 2

(1) Loosen 1 screw.(2) Move the drawer catcher to the front or rear side.(3) Tighten the 1 screw.

Fig. 5-2

(A)

(B)

December 2005 TOSHIBA TEC MY-1027 ADJUSTMENT

5 - 3

5

5.2 Drawer Cover Position AdjustmentAdjust the drawer position as follows when the sideways deviation adjustment in Chapter 5.1 is per-formed 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.

Fig. 5-3

MY-1027 ADJUSTMENT December 2005 TOSHIBA TEC

5 - 4

December 2005 TOSHIBA TEC MY-1027 TROUBLESHOOTING

6 - 1

6

6. TROUBLESHOOTING

1. Paper is not picked up.

Is there any deformation or wear of the pickup roller?

YES Replace the pickup roller.NO

Does the pickup roller rotate? (Output check: Perform 101 before performing 202)

NO Replace the pickup solenoid or fix the breakage of the drive system.YES

Is the lift-up mechanism of the drawer normal?

NO Fix the lift-up mechanism.YES

Is the paper empty sensor normal? (Input check: [Interrupt] button turned OFF, 6, LED5)

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?

YES Replace the paper.NO

Is the paper separation claw deformed?

YES Fix or replace the paper separation claw.NO

Fan the paper and load it again.

MY-1027 TROUBLESHOOTING December 2005 TOSHIBA TEC

6 - 2

3. Paper is picked up, but is not fed to the equipment.

Does the feed roller rotate? (Output check: Perform 101 before performing 202)

NO Replace the drive gear or transport clutch (L).YES

Is the feed sensor normal? (Input check: [Interrupt] button turned OFF, 7, LED5)

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?

NO Fan the paper and load it again.YES

Is the width of the paper guide properly adjusted?

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)

NO Connect the connector correctly or replace the harnesses.YES

Replace the PFU board.

December 2005 TOSHIBA TEC MY-1027 MAINTENANCE

7 - 1

7

7. MAINTENANCE

7.1 Periodic Maintenance

Fig. 7-1

Symbols used in the checklist

Preventive Maintenance ChecklistNote: Note:

Page-Item (P-I) is described in the column of the Parts list.

Cleaning Lubrication/Coating Replacement Operation checkA: Clean with alcoholB: Clean with soft pad,

cloth or vacuum cleaner

L: Launa 40SI: Silicon oilW: White grease

(Molykote X5-6020)AV:Alvania No.2

The number of sheets con-sumed before replacement (Value x 1,000).R: Replace if deformed or

damaged

O: After cleaning or replacement, confirm there is no problem

Item to check CleaningLubrica-

tion/Coating

Replace-ment

(x1,000)

Operation check

Parts list (P-I) Remarks

1 Pickup roller A 90 3-12

2 Feed roller A 3-16

1 2

MY-1027 MAINTENANCE December 2005 TOSHIBA TEC

7 - 2

December 2005 TOSHIBA TEC MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM

8 - 1

8

8. CIRCUIT DIAGRAM / HARNESS DIAGRAM

8.1 Assembly Of PC Board

Fig. 8-1

MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM December 2005 TOSHIBA TEC

8 - 2

8.2 Harness Diagram

Fig. 8-2

PF

UC

NT

-0

J2

23

1 2 3 41 2 3 4 5 6

11

12

13

14

15 12345678910

J2

22

CN

22

3

CN

22

2

J2

21

CN

22

1

+2

4V

+2

4V

PG

PG

PW

A-F

-PF

U-6

41

J4

+5

V

SG

7 8 9 10

11

12

S2

SG

SID

EC

OV

SW

SG

CS

TS

W

+2

4V

+2

4V

+2

4V

+5

V

SG

+5

V

SG

PIC

KS

OL

FE

DC

LT

-L

EM

PS

NR

FE

DS

NR

FE

DC

LT

-H

2 112

J5

43

2 1J5

38

J5

37

J5

40

2 1J5

36

2 1J5

39

S1

312 12 3 12

11

12

13

14

151 2 3 4 5 6 7 8 9 10

SID

EC

OV

-0

FE

DS

W-0

CS

TS

W-0

EM

P-0

NE

AR

EM

P-0

FE

DC

LT

-H0

PS

OL

-0

FE

DC

LT

-L0

CL

T2

CL

T1

SO

L

SW

1

SW

2

J5

42

12

1233

Pic

ku

p s

ole

no

id

Tra

nsp

ort

clu

tch

(H

)

Tra

nsp

ort

clu

tch

(L

)

Dra

we

r d

ete

ctio

n s

witch

Ja

m a

cce

ss c

ove

r o

pe

nin

g/c

losin

g s

witch

Pa

pe

r fe

ed

se

nso

r

Pa

pe

r e

mp

ty s

en

so

r

To

Eq

uip

me

nt

December 2005 TOSHIBA TEC MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM

8 - 3

8

8.3 Circuit Diagram

Fig. 8-3

Dra

wer

dete

ction s

witch

Paper

feed s

ensor

Jam

accsess c

over

openin

g/c

losin

g s

witch

To E

quip

ment

Tra

nsport

clu

tch (

Hig

h s

peed

)

Tra

nsport

clu

tch (

Low

speed

)

Pic

kup s

ole

noid

Paper

em

pty

sensor

MY-1027 CIRCUIT DIAGRAM / HARNESS DIAGRAM December 2005 TOSHIBA TEC

8 - 4

MENUCONTENTS1. SPECIFICATION2. GENERAL DESCRIPTION2.1 Main Components2.2 Sectional View2.3 Electric Parts Layout2.4 Symbols and Functions of Various Components2.5 Diagram of Signal Blocks

3. DESCRIPTION OF OPERATIONS3.1 Outline3.2 Picking up System3.3 Paper Feed System

4. DISASSEMBLY AND ASSEMBLY5. ADJUSTMENT5.1 Adjustment Procedure of Horizontal Deviation5.2 Drawer Cover Position Adjustment

6. TROUBLESHOOTING7. MAINTENANCE7.1 Periodic Maintenance

8. CIRCUIT DIAGRAM / HARNESS DIAGRAM8.1 Assembly Of PC Board8.2 Harness Diagram8.3 Circuit Diagram

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