Name: Canon PC880
Brand: Canon
SKU: 4657882
Rating: 5 (1 reviews)

COPYRIGHT

©

1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

REVISION 0

FY8-13GA-000

AUG. 1999

PC860

F13-8491 TYA00001-

PC880

F13-8291 TZA00001-

PC890

F13-8242 UAA00001-

PC920

F13-8431 TVB00001-

F13-8441 PUD00001-

PUE00001-

F13-8461 PUH00001-

PC921

F13-8432 TVC00001-

PC940

F13-8436 TVD00001-

PC941

F13-8437 TVE00001-

PC950

F13-8231 TVF00001-

F13-8241 PUF00001-

PUG00001-

PC960

F13-8434 TVG00001-

PC980

F13-8232 TVH00001-

PC981

F13-8233 TVJ00001-

COPYRIGHT

©

1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

IMPORTANT

THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE

OF REFERENCE FOR WORK IN THE FIELD.

SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY

FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER

PRINTED MATTER.

ANY QUESTIONS REGARDING INFORMA TION CONTAINED HEREIN SHOULD BE DIRECTED

TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.

THIS DOCUMENT ATION IS INTENDED FOR ALL SALES AREAS, AND MA Y CONTAIN INFOR-

MATION NO T APPLICABLE TO CERTAIN AREAS.

Printed in Japan

Imprimé au Japon

Use of this manual should be strictly su-

pervised to avoid disclosure of confidential

information.

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION

CANON INC.

5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302-8501 Japan

i

This service manual has been prepared for the PC800/900 Series machines,

providing basic information used for servicing the machines in the field so as to ensure

their quality and performance.

This service manual consists of the following chapters:

Chapter 1

General Description

introduces the machine's features, specifications,

names of parts, and how originals are reproduced.

Chapter 2

Basic Operation

explains how copies are made on a step-by-step basis.

Chapter 3

Exposure System

discusses the principles of operation used for the

machine's exposure system. It also explains the timing at which exposure-

related mechanisms are operated, and shows how they may be

disassembled/assembled and adjusted.

Chapter 4

Image Formation System

discusses the principles of operation used for the

machine's image formation system. It also explains the timing at which image

formation-related mechanisms are operated, and shows how they may be

disassembled/assembled and adjusted.

Chapter 5

Pick-Up/Feeding System

discusses the principles of operation used for the

machine's pickup/feeding system. It also explains the timing at which pickup/

feeding-related mechanisms are operated, and shows how they may be

disassembled/assembled and adjusted.

Chapter 6

Fixing System

discusses the principles of operation used for the machine's

fixing system. It also explains the timing at which fixing-related mechanisms

are operated, and shows how they may be disassembled/assembled and

adjusted.

Chapter 7

Externals/Auxiliary Mechanisms

discusses the principles of operation used

for the machine's externals/auxiliary mechanisms. It also explains the timing

at which auxiliary mechanism-related mechanisms are operated, and shows

how they may be disassembled/assembled and adjusted.

Chapter 8

ADF

explains the principles of operation of the ADF in view of electrical and

mechanical functions and in relation to their timing of operation. It also shows

how the unit may be disassembled/assembled and adjusted.

Chapter 9

Installation

introduces requirements for the site of installation, and shows

how the machine may be installed using step-by-step instructions.

Chapter 10

Maintenance and Servicing

provides tables of periodically replaced parts and

consumables/durables and scheduled servicing charts.

Chapter 11

Troubleshooting

provides tables of maintenance/inspection, standards/

adjustments, and problem identification (image fault/malfunction).

Appendix contains a general timing chart and general circuit diagrams.

INTRODUCTION

ii

The following rules apply throughout this Service Manual:

1. Each chapter contains sections explaining the purpose of specific functions and the

relationship between electrical and mechanical systems with reference to the timing

of operation.

In the diagrams,

represents the path of mechanical drive—where a signal name

accompanies the symbol

, the arrow indicates the direction of the electric sig-

nal.

The expression “turn on the power” means flipping on the power switch, closing the

front door, and closing the delivery unit door, which results in supplying the machine

with power.

2. In the digital circuits, ‘1’ is used to indicate that the voltage level of a given signal is

“High,” while ‘0’ is used to indicate “Low.” (The voltage value, however, differs from

circuit to circuit.)

In practically all cases, the internal mechanisms of a microprocessor cannot be checked

in the field. Therefore, the operations of the microprocessors used in the machines

are not discussed: they are explained in terms of from sensors to the input of the DC

controller PCB and from the output of the DC controller PCB to the loads.

The descriptions in this Service Manual are subject to change without notice for

product improvement or other reasons, and major changes will be communicated in the

form of Service Information bulletins.

All service persons are expected to have a good understanding of the contents of this

Service Manual and all relevant Service Information bulletins and be able to identify and

isolate faults in the machine.

iii

Model

PC860

PC880

PC890

PC920

PC921

PC940

PC941

PC950

PC960

PC980

PC981

Type

code

TYA

TZA

UAA

PUD

PUE

PUH

TVB

TVC

TVD

TVE

PUF

PUG

TVF

TVG

TVH

TVJ

Multi-

feeder

√

Single

feeder

√

Zoom

√

Default

ratio

2R2E

3R1E

2R2E

3R1E

ADF

as

standard

√

Cassette

250 sheets

Universal

500 sheets

Universal

500 sheets

Copying

speed

(cpm) at

Direct

12

10

13

12

13

10

13

The notation “√” indicates that the item in question is available.

• This service manual covers the models shown in the following table. Be sure to have a

good understanding of the difference from model to model before referring to this

manual.

Density

correction

switch

(SW101)

√

iv

v

CHAPTER 1

GENERAL DESCRIPTION

This chapter provides specifications of the machine, instructions on how to operate

the machine, and an outline of copying process.

I. FEATURES ..................................1-1

II. SPECIFICATIONS .......................1-2

A. Copier....................................1-2

B. ADF .......................................1-8

III. NAMES OF PARTS................... 1-10

A . External View ..................... 1-10

B. Cross Section..................... 1-13

IV. USING THE MACHINE ............. 1-15

A. Control Panel...................... 1-15

V. ROUTINE MAINTENANCE

BY THE USER .......................... 1-17

VI. IMAGE FORMATION ................ 1-20

A. Outline ................................ 1-20

CHAPTER 1 GENERAL DESCRIPTION

1-1

I. FEATURES

1. Personal Copier with a Zoom Function and a Fixed Copyboard

• You can choose either a default enlargement/reduction ratio or any ratio between 70% and

141% in 1% increments.

2. Ecology-Conscious

• The use of a roller charging method has resulted in a considerable reduction of ozone: 0.01

ppm or less on the average, 0.02 ppm or less at maximum (1/100 to 1/1000 compared with

existing Canon machines).

3. SURF Fixing Assembly

• The wait time is 0 sec (at 20°C room temperature), enabling speedy copying work immedi-

ately after power-on.

4. Various Paper Sizes

• The paper may be between A4 (LGL) and A5 (STMT) (*Using the universal cassette).

• In manual feed mode, paper may be as large as A4 (LGL) or as small as a business card.

5. All-in-One Cartridge for Simple Maintenance

• The photosensitive drum, toner case, charging roller, developing assembly, and cleaning as-

sembly are constructed as a single entity (cartridge).

The user may expect quality copy images at all times as long as he/she performs simple

replacement/cleaning work.

6. Large Paper Source

• The source of paper may contain as many as 550 sheets of paper (500-sheet cassette +

multifeeder; multifeeder type).

7. Separate top unit

• The machine’s top unit may be opened to make jam removal easy.

8. ADF Type

• Continuous copying is possible with the use of the ADF.

CHAPTER 1 GENERAL DESCRIPTION

1-2

II. SPECIFICATIONS

A. Copier

1. Type

Descriptions

Desk top

Fixed

Halogen lamp (80 V/110 W for 120V-model; 150 V/160 W

for 220/240 V-model)

Fixed focal point lens

OPC drum (24-mm dia.)

Item

Body

Copyboard

Source of light

Lens

Photosensitive medium

Table 1-201

2. Mechanisms

Descriptions

Indirect static reproduction

Roller (direct charging)

Slit (moving light source)

Auto or manual

Dry (toner projection)

Cassette (1 pc.)

Single-feeder (single-feeder type)

Multifeeder (multifeeder type)

Curvature separation + static eliminator

Flat heater

Blade

Center reference (copyboard)

Item

Reproduction

Charging

Exposure

Copy density adjustment

Development

Pickup

Separation

Fixing

Cleaning

Original orientation

Table 1-202

CHAPTER 1 GENERAL DESCRIPTION

1-3

3. Performance

Descriptions

Sheet, book, 3-D object (2kg max.)

A4 (297 × 210 mm)/LGL (216 × 356 mm)

Inch/AB-configuration: 2R2E Inch-configuration: 3R1E

70% to 141% (in 1% increments

*1

)

0 sec (at 20°C room temperature)

10 sec or less (at 20°C room temperature; Direct, non-AE,

from the cassette)

100 (max.)

A4/LGL (297 × 210 mm/216 × 356 mm max.)

Business card (90 × 55 mm, min.)

Cassette:

Plain paper (64 to 80 g/m

2

), tracing paper (SM-1, A4R/

B5R), colored paper, recycled paper (64 to 80 g/m

2

; A4R/

B5R), eco paper (80 g/m

2

; A4R)

Manual Feeder:

Plain paper (52 to 128 g/m

2

), tracing paper (SM-1, GNT-

80

*2

; A4R/B5R), transparency

*2,*4

(A4R/LTRR

*3

), colored

paper, business card (200 g/m

2

or less), label sheet

*2

(A4R/

LTRR), recycled paper (64 to 80 g/m

2

; A4R/B5R), eco pa-

per (80 g/m

2

; A4R), postcard

*3

Double-Sided/Overlay Copying

*5

:

Plain paper (64 to 128 g/m

2

), colored paper, business card

(200 g/m

2

or less), recycled paper (64 to 80 g/m

2

; A4R/

B5R), eco paper (80 g/m

2

; A4R), postcard

*3

With claws

Universal cassette (250 sheets of 80 g/m

2

paper; A4/LGL to

A5/STMT)

250-sheet cassette (250 sheets of 80 g/m

2

)

500-sheet cassette (500 sheets of 80 g/m

2

)

5 mm deep (approx.; 50 sheets of 80 g/m

2

)

100 sheets (A4; 80 g/m

2

)

Leading edge: 2.0 ±1.5 mm (Direct; 4.0 mm or less otherwise)

Left/right: 0.0 +2.0, -0.0 mm (0 +4.0, -0.0 mm for LTR)

Provided (5 min, approx.; fixed)

*6

Item

Original type

Maximum original size

Reproduction ratio

Zoom

Wait time

First copy time

Continuous copying

Copy size

Copy paper type

Cassette

Multifeeder tray

Copy tray

Non-image width

Auto power-off

Table 1-203

CHAPTER 1 GENERAL DESCRIPTION

1-4

*1. Applies only to models with a zoom function.

*2. Applies only to single pickup if the multifeeder is used.

*3. Applies only to vertical feeding.

*4. Upon delivery, be sure to remove each from the copy tray.

*5. Be sure to remove any curling before feeding for a second time.

*6. If stopped because paper ran out during copying operation, 1 hr.

CHAPTER 1 GENERAL DESCRIPTION

1-5

4. Others

Descriptions

7.5°C to 32.5°C/44.5°F to 90.5°F

5% to 85% RH

607.95 to 1013.25 hPa (0.6 to 1 atm)

120 V 60 Hz 220/240 V 50 Hz, 60 Hz

TVBxxxxx PUDxxxxx PUHxxxxx

TVCxxxxx PUExxxxx

TVDxxxxx PUFxxxxx

TVExxxxx PUGxxxxx

TVFxxxxx TYAxxxxx

TVGxxxxx TZAxxxxx

TVHxxxxx UAAxxxxx

TVJxxxxx

0.9 kW or less

Standby: 1.2W (approx.; about 5min; reference only)

Copying: 0.4kWh (approx.; reference only)

Standby: -(sound power level by ISO)

Copying: (sound power level by ISO)

• Single-feeder type: 68 dB or less

• Multifeeder type: 66 dB or less

0.01 ppm or less (average; 0.02 ppm or less, max.)

Copyboard Type

484.9 × 448.2 × 297.5 mm

*1

/ 329.0 mm

*2

19.1 in. × 17.6 in × 11.7 in

*1

/ 13.0 in

*2

ADF Type

484.9 × 448.2 × 358.3 mm

*1

/ 389.8 mm

*2

19.1 in × 17.6 in × 14.1 in

*1

/ 15.3 in

*2

Copyboard Type

Single-feeder type: 19.3 kg

*1

/ 42.5 lb

*1

, 20.9 kg

*2

/ 46.0 lb

*2

Multifeeder type: 19.5 kg

*1

/ 42.9 lb

*1

, 21.1 kg

*2

/ 46.4 lb

*2

ADF Type

Single-feeder type: 23.8 kg

*1

/ 52.4 lb

*1

, 25.2 kg

*2

/ 55.4 lb

*2

Multifeeder type: 24.0 kg

*1

/ 52.8 lb

*1

, 25.4 kg

*2

/ 55.9 lb

*2

Copy paper: Keep wrapped, and protect against humidity.

Toner: Avoid direct sunlight, and store at 40°C/104°F, 85%

or less.

Item

Operating condition

Temperature

Humidity

Atmospheric pressure

Power source

Serial number

Maximum power consumption

Noise

Ozone

Dimensions (WxDxH)

Weight (including the cassette)

Consumables

Table 1-204

*1. 250-sheet cassette type

*2. 500-sheet cassette type

CHAPTER 1 GENERAL DESCRIPTION

1-6

5. Default Ratios

Table 1-205

2R2E (Inch/AB-configuration)

1:1.000

1:0.707

1:0816

1:1.154

1:1.414

Item

Direct

Reduce I

Reduce II

Reduce III

Reduce IV

Enlarge I

Enlarge II

3R1E (Inch-configuration)

1:1.000

1:0.707

1:0.786

1:0.860

1:1.414

CHAPTER 1 GENERAL DESCRIPTION

1-7

6. Copying Speed

Table 1-206

*1. The number of copies starting with the pickup operation that follows the delivery of the

19th copy in a continuous copying job. (See p.5-8)

The specifications are subject to change for product improvement.

Number of copies

( Multifeeder

*1

)

(Copies / min)

13 (9)

11 (8)

13 (9)

10 (9)

12 (9)

10 (9)

10 m(9)

10 (9)

9

10 (9)

9

Copy size

LTRR

LGL

STMTR

MIN

LGL → LTRR

MARJIN

MAX

A4R

B5R

A5R

A4R → A5R

B5R → A5R

B5R → A4R

A5R→ A4R

A4R

B5R

A5R

A4R → A5R

B5R → A5R

B5R → A4R

A5R → A4R

LTRR

LGL

STMTR

MIN

LGL → LTRR

MARJIN

MAX

Reproduction ratio

Direct

Reduce I (70.7%)

Reduce II (78.6%)

Reduce IV (86.0%)

Enlarge II (141.4%)

Direct

Reduce I (70.7%)

Reduce III (81.6%)

Enlarge I (115.4%)

Enlarge II (141.4%)

Direct

Reduce I (70.7%)

Reduce III (81.6%)

Enlarge I (115.4%)

Enlarge II (141.4%)

Direct

Reduce I (70.7%)

Reduce II (78.6%)

Reduce III (86.0%)

Enlarge II (141.4%)

Copying speed

at Direct

13

12

10

CHAPTER 1 GENERAL DESCRIPTION

1-8

B. ADF

Table 1-207

Descriptions

Auto pickup/delivery

Face-down

Center reference

Top separation

Single-sided (50 to 128 g/m

2

)

A5 (STMT) to A4R (LTRR), LGL

Length: 139.7 to 355.6 mm (feeding direction)

Width: 139.7 to 215.9 mm

30 sheets (80 g/m

2

or less; about 3 mm in height)

Single-sided original to single-sided copy

Yes (in feeding direction)

No

Yes

446 mm/sec

IPC

Width: 474 mm/ 18.7 in.

(659 mm/ 25.9 in. with the tray open)

Depth: 394 mm/ 15.5 in.

Height: 74 mm/ 2.9 in. (216 mm/ 8.5 in. with the tray open)

5 kg/ 11 lb (approx.)

24 VDC and 5 VDC (from the host)

40 W or less

Temperature: same as the host

Humidity: same as the host

Item

Original pickup

Original orientation

Original position

Original separation

Original type

Stack

Original processing mode

Original size detection

Mixed original sizes

Original detection

Original feeding speed

Communication with host

Dimensions

Weight

Power source

Maximum power consumption

Operating environment

CHAPTER 1 GENERAL DESCRIPTION

1-9

*1. The following may not be used as an original:

• Sheet with a staple, clip, or glue.

• Sheet with a cut, hole, or tear.

• Sheet with holes for binding.

• Sheet with a carbon back.

• Sheet with a cut-and-paste piece.

• Sheet with curling, bending, or wrinkling.

The specifications are subject to change for product improvement.

CHAPTER 1 GENERAL DESCRIPTION

1-10

[1] Copy tray

[2] Power cord connector

[3] Open/close lever

[1] Copyboard cover

[2] Static eliminator cleaner

[3] Manual feed tray

[4] Right door

[5] Cassette

[6] Copyboard glass

[4] Static eliminator

[5] Copy density correction switch

[6] Delivery guide plate

[1]

[6]

[5]

[2]

[3]

[4]

[5]

[3]

[6]

[2]

[1]

[4]

III. NAMES OF PARTS

A. External View

1. Copyboard Type

Figure 1-301

Figure 1-302

CHAPTER 1 GENERAL DESCRIPTION

1-11

[1] ADF

[2] Manual feed tray

[3] Right door

[1] Static eliminator cleaner

[2] Delivery guide plate

[3] Copy tray

[4] Power cord connector

[4] Cassette

[5] Copyboard glass

[5]

[4]

[2]

[3]

[1]

[5] Open/close lever

[6] Static eliminator

[7] Copy density correction switch

[7]

[6]

[5]

[2]

[4]

[3]

[1]

2. ADF Type

Figure 1-303

Figure 1-304

CHAPTER 1 GENERAL DESCRIPTION

1-12

[1]

[4]

[3]

[2]

3. ADF

Figure 1-305

[1] Original tray

[2] Original delivery tray

[3] Slide guide

[4] Auxiliary tray

CHAPTER 1 GENERAL DESCRIPTION

1-13

[1] No. 3 mirror

[2] No. 2 mirror

[3] No. 1 mirror

[4] Scanning lamp

[5] Heat exhaust fan

[6] Copyboard glass

[7] Side blanking lamp

[8] Lens

[9] Primary charging roller

[10] No. 6 mirror

[11] Cartridge

[12] No. 4 mirror

[13] No. 5 mirror

[14] Multifeeder tray

[15] Vertical path roller

[16] Multifeeder pickup roller

[17] Cassette pickup roller

[18] Registration roller

[19] Developing cylinder

[20] Photosensitive drum

[21] Transfer roller

[22] Feed belt

[23] Cassette

[24] Fixing upper unit

[25] Fixing lower roller

[26] Cleaning roller

[27] Delivery roller

[28] Copy tray

[29] Single-feeder pickup roller

[1]

[28] [27] [26] [25] [24] [23] [22] [21] [20] [19] [18] [17] [29][16] [15]

[2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]

B. Cross Section

1. Body

Figure 1-306

CHAPTER 1 GENERAL DESCRIPTION

1-14

[1] Delivery roller

[2] Copy tray

[3] Pickup roller 2

[4] Pickup roller 1

[5] Copyboard tray

[6] Auxiliary tray

[7] Guide plate

[8] Separation pad

[9] Registration roller

[10] Feed belt drive roller

[11] Feed belt

[12] Feed belt roller

[13] Feed belt link slave roller

[6][5][4][3][2][1]

[13] [12]

[11] [9] [8] [7][10]

2. ADF

Figure 1-307

CHAPTER 1 GENERAL DESCRIPTION

1-15

Description

Adjusts the density of copies

manually.

Indicates the selected copy den-

sity mode.

Indicates the selected default ra-

tio.

Indicates the selected cassette/

manual feed tray.If there is no

paper loaded, it flashes.

Flashes in response to a jam.

• Indicates the number of copies

or reproduction ratio.

• The symbol “%” turns on

when indicating a ratio.

Stops copying or returns copy-

ing mode to standard mode.

Starts copying.

Turns on and off the power.

No.

1

2

3

4

5

6

7

8

9

Remarks

100 (max.; continuous

copying)

Standard Mode

Ratio: 100%

Count: 1

Paper source: cassette

Copy density: auto

mode

Name

Copy density adjusting lever

Copy density mode indicator

Default ratio indicator

Paper selection indicator

*1

Jam indicator

Count/ratio indicator

Clear/stop key

Copy start key

Power switch

[8] [9][7][6][1]

[15] [14] [12] [10][11][13]

[5][4][3][2]

IV. USING THE MACHINE

A. Control Panel

Figure 1-401

CHAPTER 1 GENERAL DESCRIPTION

1-16

Description

No.

Remarks

Name

10

11

12

13

14

15

Count/zoom set key

Zoom indicator

*2

Zoom key

*2

Paper selection key

*1

Default ratio key

Copy density mode selection

key

Sets the number of copies or a

zoom ratio.

Turns on when zoom mode is

selected.

Selects/deselects zoom mode.

Selects the cassette/ manual

feed tray.

Selects a default reproduction

ratio.

Selects copying density mode.

May be between 70%

and 141% in 1% incre-

ments.

Table 1-401

*1. Applies only to a multifeeder model.

*2. Applies only to a model equipped with a zoom function.

CHAPTER 1 GENERAL DESCRIPTION

1-17

Zoom

V. ROUTINE MAINTENANCE BY THE USER

Instruct the user to clean the following if images tend to be soiled or copy paper tends to jam

often.

1. Soiled Images

a. Copyboard Glass/Copyboard Cover

Clean the cover with a moist cloth (with water or mild detergent solution); then, dry wipe it.

b. Feeding Belt (ADF type)

b.1 Cleaning in Feeder Cleaning Mode

1) Turn on the machine, and hold down the Copy Density Mode Selection key for 4 sec or

more.

• The count/ratio indicator will indicate ‘U6’.

Figure 1-501

2) Place about 10 sheets of blank copy paper (A4/LTR) on the original tray of the ADF.

3) Press the Copy Start key.

• Copy paper will be fed from the original tray.

• The indicator flashes ‘U6’ while the feeder is being cleaned.

4) Press the Copy Density Mode Selection key to end the mode.

Caution:

• You cannot start feeder cleaning mode while the machine is making copies or if an error

exists.

• The auto power-off mechanism does not operate while feeder cleaning mode is being

executed.

CHAPTER 1 GENERAL DESCRIPTION

1-18

b.2 Cleaning by Hand

1) Wipe the feed belt with a moist cloth (water or mild detergent solution) in the direction of

the arrow in the figure; then, dry wipe it.

Figure 1-502

2. If Jams Occur Frequently

a. Static Eliminator

1) Remove the static eliminator cleaner from the machine.

Figure 1-503 (Copyboard type)

Canon PC880, PC860 Service Manual

CONTENTS

CHAPTER 1

I. FEATURES

II. SPECIFICATIONS

III. NAMES OF PARTS

IV. USING THE MACHINE

V. ROUTINE MAINTENANCE BY THE USER