Minolta 1052 Disassem Adj

EPlO52

DE/REASSEMBLY,

ADJUSTMENT

MINOLTA

1158SBDOOOSA
+

For the Utmost safety

l

For replacement parts, use the genuine parts with their part numbers specified in the parts manual. Use

of a wrong part could cause an overload or dielectric breakdown, resulting in an electric shock or fire.

l

Replace a blown fuse or thermal fuse with the corresponding genuine part with its part number specified
in the parts manual. Use of a fuse with a different rating or one with the same rating but of a different
type can result in a fire.
Especially when a thermal fuse blows frequently, the thermal control system
Be sure to take necessary action.

l

Before attempting to disassemble the machine, be sure to unplug its power cord. The machine contains
a high voltage unit and a circuit with a large current capacity that may cause an electric shock or burn
from sparking.
The machine also contains quick moving parts, which could injure a person.

If the machine uses a laser, a person can lose his/her eyesight by a laser beam leak.

l

Wherever feasible, keep the covers and parts mounted when energizing the machine.

If it is absolutely necessary to energize the machine with its cover removed, do not touch an exposed
part that is being charged and use care not to allow your clothing to be caught by a timing belt, gear,
or other moving part.

l

Do not leave the machine unattended while it is being energized.

+

!

Warning

A

i$

probably faulty.

! Caution

A

l

To actuate an interlock switch with

ating jig. Use of folded paper can damage the interlock switch mechanism.

a

cover

removed or opened, be sure to use the interlock switch actu-

! Caution

A

l

A high voltage is being applied to the part marked with the symbol shown
on the right. Touching it can cause an electric shock, Be sure to unplug the
power cord when servicing this part or other parts near it.

l

When the machine is energized with any of its covers removed, never use a flammable spray near it,
as a fire can result.

l

Make sure that correct screws (diameter and length of the screw, binding/tapping screws) are used in
the correct places when assembling parts. If a wrong screw is used, a short insulating distance could
result. It could also result in collapsed threads, which provides only a poor grounding connection, result­ing in an electric shock.

l

A toothed washer and spring washer, if used originally, must be reinstalled. If they are left out, a contact
failure results, causing an electric shock or fire.

l

Replace a lithium cell only with one having the part number specified in the parts manual. An explosion
could result if the cell is installed with wrong polarity or a wrong cell is installed.
Dispose of a used lithium cell according to the applicable local regulations. Never throw it away or aban­don it on the users premises.

+

Other Precautions

l

While the machine is being energized, do not unplug or plug in a connector on a PWB or relay harness.

l

Since the Magnet Roller of the Imaging Unit generates a strong

floppy disk, or magnetic card near it.

l

Use of an air gun
parts to break down. Be sure therefore to use a blower brush or cloth to clean these parts. If a unit is to
be cleaned, be sure to remove the sensors in advance.

l

MQS ICs

tions given in l-2. INSTRUCTIONS FOR HANDLING THE

l

The PC Drum is highly delicate. When handling the PC Drum, follow the precautions given in 1-3. HAN­DLING OF THE PC DRUM.

l

To reassemble, reverse the order of disassembly unless otherwise specified.

l

Note that replacement of a PWB may call for readjustments or resetting of particular items.

or vacuum

are susceptible to static electricity. When handling a PWB loaded with MOS

+

magnetic

force,

do not bring a CRT, watch,

generates static electricity which can cause the ATDC Sensor and associated

ICs,

follow precau-

PWBs

WITH MQS

ICs.

CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED. REPLACE
ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER.
DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFACTURERS INSTRUCTIONS.

-

Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med

batteri

af

samme

fabrikat og type. Lever det brugle bafferi tilbage til leverandoren.

ii

CONTENTS

1 SERVICE INSTRUCTIONS

l-l. PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS
1-2. INSTRUCTIONS FOR HANDLING THE

WITH

MOSICs

.........................................

1-3. HANDLING OF THE PC DRUM

1-4.

PARTS WHICH MUST NOT BE TOUCHED

PWBs

..........................

................

2 1 DISASSEMBLY/REASSEMBLY

2-1.

DOORS, COVERS, AND EXTERIOR PARTS:

IDENTIFICATION AND REMOVAL PROCEDURES
2-2. REMOVAL OF
2-3. BELT INSTALLATIONS
2-4. PAPER TAKE-UP/TRANSPORT SECTIONS

(1)

Removal of the Paper Take-Up Unit
(2) Removal of the Paper Take-Up Rolls
(3) Cleaning of the Paper Take-Up Rolls
(4) Removal of the Suction Unit
(5) Disassembly of the Suction Unit

PWBs

...................................

..................................

...............

.....................

....................

....................

...........................

........................

(6) Disassembly of the Multi Bypass Table (Option)

2-5. OPTICAL SECTION

(1) Removal of the Lens Drive Cable
(2) Winding of the Lens Drive Cable
(3) Removal of the Scanner Drive Cable
(4) Winding of the Scanner Drive Cable
(5) Removal of the Scanner
(6) Cleaning of the Exposure Lamp
(7) Cleaning of the Ist/2nd/3rd Mirrors
(8) Cleaning of the Lens and 4th Mirror

....................................

.......................

.......................

....................

....................

...............................

........................

.....................

.....................

(9) Cleaning of the Optical Section Cooling Fan Filter

2-6. IMAGINGUNIT

.........................................

(1) Disassembly, Cleaning, Replacement and Starter

changing of the Imaging Unit

l

Replacement of the PC Drum

l

Replacement of the Toner Scattering Prevention

Plate

.............................................

l

Replacement of the Cleaning Blade

l

Cleaning of the PC Drum Paper Separator Fingers

l

Cleaning of the Ds Positioning Collars

l

Cleaning of the Paper Dust Remover

...........................

........................

...................

.................

..................

......

.........

..........

........

......

D-l
D-2

D-2
D-4

D-5
D-8

D-10

D-i 1
D-i

1

D-12
D-l 2
D-12
D-i 2
D-13
D-18

D-18
D-19
D-20
D-22
D-24
D-24
D-25
D-25
D-25
D-26

D-26
D-26

D-26
D-27
D-28
D-28
D-28

~

l

Replacement of the Toner Antispill Mylar

l

Cleaning of the Upper Pre-Image Transfer

GuidePlate

l

Cleaning of the Magnet Roller Lower Filter
(2) Cleaning of the Main Erase Lamp
(3) Cleaning of the Edge Erase Lamp

CONTENTS

........................................

......................

......................

...............

.............

D-28
D-29

D-29
D-30
D-30

2-7. PC DRUM CHARGE CORONA/IMAGE TRANSFER

CORONA UNIT

(1) Cleaning of the PC Drum Charge Corona Housing
(2) Cleaning of the PC Drum Charge Corona Grid Mesh
(3) Cleaning of the Comb Electrode

........................................

........................

........

......

D-32
D-32

D-32
D-33

(4) Cleaning of the Image Transfer/Paper Separator

Coronas Wires

.......................................

D-33

ei

(5) Cleaning of the Image Transfer/Paper Separator

Coronas Housing

.....................................

D-33

(6) Cleaning of the Lower Pre-Image Transfer Guide

Plate

...............................................

(7) Replacement of the Ozone Filter

2-8. Fusing Unit

............................................

(1) Removal of the Fusing Unit
(2) Cleaning of the Pre-Fusing Guide Plate
(3) Removal of the Upper Fusing Roller
(4) Cleaning of the Upper Fusing Roller

.......................

............................

.................

....................

....................

(5) Cleaning of the Upper Paper Separator Fingers
(6) Cleaning of the Fusing Thermistor
(7) Removal of the Lower Fusing Roller
(8) Cleaning of the Lower Fusing Roller

......................

....................

....................

(9) Cleaning of the Lower Paper Separator Fingers

(10)

Removal of the Oil Roller

(11) Cleaning of the Oil Roller

.............................

.............................

..........

..........

D-34
D-34
D-34
D-34
D-35
D-35
D-37

D-37
D-37
D-38
D-38
D-38
D-39
D-39

3 1 ADJUSTMENT

3-1.

JIGS AND TOOLS USED

................................

3-2. ADJUSTMENT REQUIREMENTS LIST
3-3. ADJUSTMENT OF SWITCHES

(1) Adjustment of Front Door Interlock Switch

3-4. ELECTRICAL/IMAGE ADJUSTMENT

(1) Adjustment of the Maximum Exposure Lamp Voltage

for the Manual Mode

..................................

(2) Adjustment of the Optimum Exposure Setting in the

Manual Mode

........................................

(3) Adjustment of the Optimum Exposure Setting in the

Auto Mode

..........................................

....................

...........................

S21

.....................

...........

D-40
D-41
D-42
D-43

D-44
D-44
D-47

D-48

u

CONTENTS

(4) Adjustment of the ATDC Sensor
(5) Adjustment of the Aperture Blades
(6) Adjustment of the Multi Bypass Table Reference

Position..

...........................................

(7) Adjustment of the 1st Drawer Reference Position
(8) Adjustment of the Leading Edge Registration

l

FullSize

l

Enlargement

l

Reduction

..........................................

.......................................

.........................................

(9) Adjustment of the Image Leading Edge Erase

Width

...............................................

(10) Adjustment of the Edge Erase

Lamp Position

3-5. OTHER ADJUSTMENTS

......................................

................................

(1) Adjustment of the Scanner/Mirrors Carriage Position
(2) Adjustment of the Gap Between the Doctor Blade and

Sleeve Roller

........................................

(3) Adjustment of the PC Drum Paper Separator Fingers

Position

1

4 1 MISCELLANEOUS

.............................................

1

4-1. INSTALLATION OF THE PLUG-IN COUNTER MOUNTING

BRACKET (OPTION). . . . . . . . . . . . . . ,

........................

......................

.............

.

m

.

. . . . , , . . , . . , . . . . . D-63

.........

......

D-49
D-50

D-51
D-52
D-53
D-53

Dr55

D-56
D-57
D-59

D-60
D-60

D-61
D-62

1139SBDOiOOA

m

SERVICE INSTRUCTIONS

1151SBD0101A
l-1.

PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS

1

Observe the following precautions whenever servicing the copier.

l

Be sure to unplug the copier from the outlet before attempting to service the copier.

l

The basic rule is not to operate the copier anytime during disassembly.
If it is absolutely necessary to run the copier with its covers removed, use care not to allow your clothing
to be caught in revolving parts such as the timing belt and gears.

l

Be sure to use the Interlock Switch Actuating Jig whenever it is necessary to actuate the Interlock Switch

with the covers left open or removed.

l

Do not plug in or unplug print jacks on the Board or connect or disconnect the Board connectors while
power is being supplied to the copier.

l

Do not use flammable spray around the copier in operation.

l

The Magnet Roller of the Imaging Unit generates strong magnetic force. Do not bring it near a cathode-ray
tube or watch.

l

The lithium cell in RAM Board PWB-R can burst. At replacement, make sure of the correct polarity and
do not change it or create a closed circuit.

A used lithium cell should be disposed of according to the local regulations and never be discarded casual-

ly or left unattended at the users premises.

l

Do not use an air gun or vacuum cleaner for cleaning the ATDC Sensor and other sensors, as they can
cause electrostatic destruction. Use a blower brush and cloth. If a unit containing these sensors is to be

cleaned, first remove the sensors from the unit.

l

When handling the

l

When handling the PC Drum, observe precautions given in 1-3. Handling of the PC Drum.

l

Note that replacement of a PWB may call for readjustments or resetting of particular items.

l

Use the right screw in the right place at reassembly. Note that some are longer and some are thicker than

PWBs

with MOS

ICs,

observe l-2.

Instructions

for

Handling the

PWBs

with MOS

ICs.

others.

l

A toothed washer is used with the screw that secures the ground wire to ensure positive conduction. Do
not forget to insert this washer at reassembly.

l

To reassemble the copier, reverse the order of disassembly unless otherwise specified.

l

If it becomes necessary to replace the thermal fuse or any other fuse mounted on a board, be sure to use
one of the rating marked on the blown fuse.

Always note the rating marked on the fuse, as the rating and mounting site or number used are subject
to change without notice.

l

Do not pull out the Toner Hopper while the Toner Bottle is turning, as a

damaged

Toner Replenishing Motor

or locking mechanism could result.

If the copier is to be run with the Front Door swung down, make sure that the Toner Hopper is in the locked

position.

CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED. REPLACE
ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER.
DISCARD USED BATTERIES ACCORDING TO THE MANUFACTURERS INSTRUCTIONS.

D-i

1139S!3DOiOZA

1-2. INSTRUCTIONS FOR HANDLING THE

PWBs

WITH MOS

ICs

The following precautions must be observed when handling P.W. Boards with MOS (Metal Oxide
Semiconductor)

ICs.

During Transportation/Storage:

l

During transportation or when in storage, new P.W. Boards must not be indiscriminately removed from

their protective conductive bags.

l

Do not store or place P.W. Boards in a location exposed to direct sunlight.

l

When it becomes absolutely necessary to remove a Board from its conductive bag or case, always place

it on its conductive mat in an area as free as possible from static electricity.

l

Do not touch the pins of the

ICs

with your bare hands.

During Replacement:

l

Before unplugging connectors from the

F.W.

Boards, make sure that the power cord has been unplugged

from the outlet.

l

When removing a Board from its conductive bag or conductive case, do not touch the pins of the

ICs

or

the printed pattern. Place it in position by holding only the edges of the Board.

l

Before plugging connectors into the Board, make sure that the power cord has been unplugged from the

power outlet.

During Inspection:

l

Avoid checking the IC directly with a multimeter; use connectors on the Board.

l

Never create a closed circuit across IC pins with a metal tool.

l

When it is absolutely necessary to touch the

ICs

and other electrical components on the Board, be sure

to ground your body.

1151SBD0103A

I-3.

HANDLING OF THE PC DRUM

During Transportation/Storage:

l

Use the specified carton whenever moving or storing the PC Drum.

l

The storage temperature is in the range between -20C and

l

In summer, avoid leaving the PC Drum in a car for a long time.

+40%.

Handling:

l

Ensure that the correct PC Drum is used.

l

Wheneverthe PC Drum has been removed from the copier, store it in its container or protect it with a Drum

Cloth.

l

The PC Drum exhibits greatest light fatigue after being exposed to strong light over an extended period

of time, Never, therefore, expose it to direct sunlight.

l

Use care not to contaminate the surface of the PC Drum with oil-base solvent, fingerprints, and other for-

eign matter.

l

Do not scratch the surface of the PC Drum.

l

Do not apply chemicals to the surface of the PC Drum.

l

Do not attempt to wipe clean the surface of the PC Drum.

D-2

If, however, the surface is contaminated with fingerprints, clean it using the following procedure.

1.

Place the PC Drum into one half of its container.

1076COOl

2.

Gently wipe the residual toner off the surface of the PC
Drum with a dry, Dust-Free Cotton Pad.
a) Rotate the PC Drum so that the area of its surface on

which the line of toner left by the Cleaning Blade is pres­ent is facing straight up. Wipe the surface in one contin­uous movement from the rear edge of the PC Drum to
the front edge and off the surface of the PC Drum.

b) Rotate the PC Drum slightly and wipe the newly ex-

posed surface area with a CLEAN face of the Dust-Free
Cotton Pad. Repeat this procedure until the entire sur­face of the PC Drum has been thoroughly cleaned.

*

At this time, always use a CLEAN face of the dry Dust-Free

Cotton Pad until no toner is evident on the face of the Pad
after wiping.

1

3. Soak a small amount of either ethyl alcohol or isopropyl al­cohol into a clean, unused Dust-Free Cotton Pad which
has been folded over into quarters. Now, wipe the surface
of the PC Drum in one continuous movement from its rear
edge to its front edge and off its surface one to two times.

* Never move the Pad back and forth.

Using the SAME face of the Pad, repeat the procedure ex­plained in the latter half of step 3 until the entire surface of
the PC Drum has been wiped. Always OVERLAP the
areas when wiping. Two complete turns of the PC Drum
would be appropriate for cleaning.

-

NOTES

l

The Organic Photoconductor Drum is softer than

CdS

and Selenium Drums and is therefore suscepti-

ble to scratches.

l

Even when the PC Drum is only locally dirtied, wipe the entire surface.

l

Do not expose the PC Drum to direct sunlight. Clean it as quickly as possible even under interior illu-

mination.

l

If dirt remains after cleaning, repeat the entire procedure from the beginning one more time.

D-3

1151SBD0104A

1-4. PARTS WHICH MUST NOT BE TOUCHED
(1) Screws

-

Purpose of Application of Red Paint

Red

paint is applied to the screws which cannot be readjusted, set, or reinstalled in the field.
The basic rule is not to remove or loosen the screws to which red paint is applied. In addition, be advised
that, if two or more screws are designated as those which must not be touched on a single part, only
one representative screw may be marked with red paint.

(2) Variable Resistors on Board

Do not turn the variable resistors on boards for which no adjusting instructions are given in ADJUST­MENT.

(3) Other Screws

Lower Pre-Image Transfer

Guide Plate (2 screws)

Lens Rail height
setting screws (2)

D-4

1139SBD0200A

DISASSEMBLY/REASSEMBLY

1158SSD0201A

2-1.

DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATION AND RE-

1

MOVAL PROCEDURES

<OPTION>

16

15

I'

14

1158D017AA

I

24

1158D018AA

23

1158D019AA

D-5

No.

Front Door

1

Control Panel

2

Original Scales

3
4

Oriainal Glass
Rear Upper Cover

5

(Small)

Left Hinge Cover

6

Part Name

Removal Procedure

Swing down
Belt. + Remove two screws that secure the Front: Door (only
on one side). + Slide
screws have been removed.

Swing down
the Upper Half of the copier. + Remove
two screws that secure the control panel and loosen another

five screws that secure the control panel.

Remove two screws that secure the Scales.
Remove the Original Cover. + Release and swing up the

Upper Half of the copier. + Remove the Screw Cover and one
mounting screw of No.5

Remove the Original Cover. + Remove one screw that
secures the Left Hinge Cover.

No.1.

-+

Remove one screw that secures the

Zhe

Door to the side from which the

No.1.

+

Remove No.9. + Release and swing up

No.21.

+

Remove

Remove the Original Cover. + Remove

Upper Right Cover

9

Right Cover

IO

Middle Right Cover
Right Door
Multi Bypass Table

Mounting
Counter Cover

1 st Drawer

Rear Cover Swing down

16

17

Upper Rear Cover

181 Original Cover

Remove the Original Cover by pulling it up.

Bracket

Remove one screw that secures

Remove
secure No.1 0.

Remove four screws that secure No.1 1.
Open No.1 2 and remove it by lifting it up.
Remove two screws that secure the Multi Bypass Table

Mounting Bracket.
Remove No.1 4 by snapping if off.
Slide out the Drawer and remove one screw that secures the

Stopper

Ihe

copier. + Remove two screws

Swing down No-l.
the copier.

Rear Cover.

No.6,

No.7.

No.11,

+

Remove No.9. + Remove two screws that

at the rear left: corner.

No.1.

+

Release and swing up the Upper Half of

-_)

Release and swing up the Upper Half of

-_j

Remove three screws that secure the Upper

that

8 and 9.

secure the Rear Cover.

+

D-6

No.

19

20

21

22

2324Lower Left Cover

Part Name

Upper Left Cover

Middle Front Left Cover Swing down

Front Exit Cover

Rear Exit Cover

Middle Rear Left Cover

Removal Procedure

Swing down
the copier.
Cover.

the copier. + Remove one screw that secures the Middle
Front Left Cover.

Swing down
the copier.
cures the Front Exit Cover.

Swing down
the copier. + Remove No.26. + Remove one screw that se­cures the Rear Exit Cover.

Remove two screws that secure the Lower Left Cover.
Swing down

the copier.
Rear Left Cover.

No.1.

+

Release and swing up the Upper Half of

-_j

Remove four screws that secure the Upper Left

No.1.

+

Release and swing up the Upper Half of

No.1.

+

Release and swing up the Upper Half of

--f

Remove No.22. + Remove one screw that se-

No.1.

+

Release and swing up the Upper Half of

No.1.

+

Release and swing up the Upper Half of

-_)

Remove one screw that secures the Middle

I

D-7

1158SBD0202A

2-2. REMOVAL OF

l

When removing a PWB, first go over PRECAUTIONS FOR HANDLING THE

SWITCHES ON

l

Replacement of a PWB may call for readjustments or resetting of particular items.

l

The removal procedures given on the next page omit the steps to unplug connectors and remove the PWB

PWBs

PWBs

and use the removal procedures given on the next page.

PWBs

contained in

from the PWB support.

PWB-C

D-8

Symbol

+

Details of Readjustments/Resetting Involved In Replacement of PWB-R, and UN3.

1

PWB-A Master Board

PWB-C
PWB-D
PWB-E

PWB-H 1 AE Sensor Board
PWB-P Control Panel

PWB-R RAM Board

PUl Power
PU2

HVl High Voltage Unit Open 1. + Release and swing up the Upper Half of the copi-

UN3 ATDC Sensor

l

When PWB-R is replaced:
Carry out Memory Clear and then make the Tech. Rep. Program, Users Choice, and Adjust settings
again.

l

When UN3 is replaced:
Discard the developer which had been used until UN3 was replaced, charge the Developing Unit with
fresh starter, and adjust ATDC.

Name

Open 1. + Release and swing up the Upper Half of the
copier. + Remove 19.

Power Supply Board
Noise Filter Board
Motor Drive Board Open 1 and 12. + Remove 9,10, and 11.

Supplv

Unit Open 1 and 12. + Remove

DC Power Supply Unit

Open 1. + Release and swing up the Upper Half of the
copier. + Remove
that secure the Power Supply Unit Cover.

1

Remove 3 and 4. + Remove the optical cover.

Open 1. + Remove 9. + Release and swing up the Upper
Half of the copier. + Remove
that secure Control Panel.

Open 1. + Release and swing up the Upper Half of the copi­er. + Remove 19.

Open 1. + Release and swing up the Upper Half of the copi­er. 4 Remove 17 and 18.

er. + Remove 19. + Remove PWB-A.
Open 1. + Release and swing up the Upper Half of the copi-

er. + Take out the
Synchronizing Roller Guide Unit.

Removal Procedure

17,18,

and 19. + Remove four screws

21.

+

Remove seven screws

9,10,

and 11.

I/U. +

Remove two screws that secure the

I

I

I

I

D-9

1158SBD0203A

2-3. BELT INSTALLATIONS

0

Rear View

Drive/Suction Unit

115lD052AB

1

Paper Take-Up Unit

1

1142DOq5AA

D-10

ll58SBD0204A

2-4. PAPER TAKE-UP/TRANSPORT SECTIONS
(1) Removal of the Paper Take-Up Unit

1.

Remove the Multi Bypass Table. (OPTION)
See p. D-13. (NO 1 m 7)

2.

Slide out the 1 st Drawer.

1158D021AA

3.

Press the tabs at the two places indicated by the arrow
and, at the same time, remove the cover.

4.

Remove five screws and the Paper Take-Up Unit.

1158D024AA

1158D022AA

1158D023AA

5.

Unplug the one connector from the solenoids on the Paper

Take-Up Unit.

6.

Remove the Rear and Rear Upper covers.

7.

Remove the DC Power Supply Unit.

6.

Remove the harness from the wiring saddle.

9.

Unplug the one connector.

D-11

(2) Removal of the Paper Take-Up Rolls

Remove one screw to remove the Paper Take-Up Roll.

1.

(3)

Cleaning of the Paper Take-Up Rolls

Remove the Paper Take-Up Unit from the copier.

1.
Using a soft cloth dampened with alcohol, wipe clean the

2.

Paper Take-Up Rolls.

Removal of the Suction Unit

(4

Remove the Fusing

1.

2.

Unplug the Suction
from the clamp.

Unit. (See p. D-34.)
Fan connector and remove the wire

3.

Remove four screws to remove the Suction Unit.

1151D030AA

(5) Disassembly of the Suction Unit

Remove the four Suction Drive Rolls and six bushings by

1.
pulling them in the direction of the arrow.

1151D004AA

D-i 2

1139D094AA

1151

DOOGAA

2.

Snap off the three E-rings from the Suction Drive Unit.

3. Remove the gear and bushings.

1

4. Remove the Pre-Fusing Guide Plate.

5. Remove the Suction Drive Unit.

6.

Remove the four belts.

7. Remove the Suction Fan.

(6) Disassembly of the Multi Bypass Table (OPTION)

1. Remove the Right Door.

D-l 3

2.

Remove three screws and the Large Cover.

d

A

3.

Remove one screw and the Small Cover.

4.

Remove three screws and the Guide Lever Unit.

113QD240AA

5.

Remove four screws and the Multi Bypass Table.
Unplug the Multi Bypass Table connector.

D-14

1139DlOlAA

7.

Remove one screw and the Multi Bypass Table.

8.

Unplug one connector.

9.

Remove the Tension Unit.

10.

Remove two screws and the Clutch Mounting Bracket.

113QDlOZAA

113QD103AA

11.

Remove two screws and the Lower Guide.

12.

Remove four screws and the Separator Guide Plate Unit.

D-i

5