Canon FC200, FC220, PC400, PC420, PC430 Service Manual

SERVICE MANUAL

REVISION 0

FY8-13F2-000

JAN.1998

IMPORTANT

Use of this manual should be strictly

supervised to avoid disclosure of

confidential information.

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 INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.

THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS, AND MAY CONTAIN INFORMATION NOT APPLICABLE TO CERTAIN AREAS.

Printed in Japan

Imprimé au Japon

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION

CANON INC.

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

i

This Service Manual provides information needed to service the plain paper copiers FC200/PC400(120V model), FC220/PC420(120V model), and PC430(LGL model) in the field.

The FC200/PC400 differs from the FC220/PC420/PC430 for the following:

INTRODUCTION

This Service Manual consists of the following chapters:

CHAPTER 1, “General Description,” introduces the copier’s features and specifications, shows how to operate the copier, and explains how copies are made.

CHAPTER 2, “Basic Operation,” provides outlines of the copier's various mechanical workings.

CHAPTER 3, “Exposure System,” discusses the principles of operation used for the copier's lens drive unit and scanner drive unit. It also explains the timing at which these drive units are operated, and shows how they may be disassembled/assembled and adjusted.

CHAPTER 4, “Image Formation System,” discusses the principles of how images are formed. It also explains the timing at which the various units involved in image formation are operated, and shows how they may be disassembled/assembled and adjusted.

CHAPTER 5, “Pick-Up/Feeding System,” explains the principles used from when copy paper is picked up to when a copy is delivered in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.

CHAPTER 6, “Fixing System,” explains the principles used to fuse toner images to transfer media in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.

CHAPTER 7, “Externals/Auxiliary Mechanisms,” shows the copier's external parts, and explains the principles used for the copier's various control mechanisms in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.

CHAPTER 8, “Installation,” introduces requirements for the site of installation, and shows how the copier may be installed using step-by-step instructions.

CHAPTER 9, “Maintenance and Servicing,” provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts.

CHAPTER 10, “Troubleshooting,” provides tables of maintenance/inspection, standards/adjustments, and problem identification (image fault/malfunction).

Appendix contains a general timing chart and general circuit diagrams.

Model Manual pick-up Multifeeder AE

FC220/PC420/PC430

Not available Available Available

FC200/PC400

Available Not available Not available

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 signal. 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.

Note:

The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes, 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.

ii

iii

CHAPTER 1

GENERAL DESCRIPTION

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

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

III. NAMES OF PARTS .....................1-4

A. External View..........................1-4

B. Cross Section .........................1-5

IV. OPERATION................................1-6

A. Control Panel..........................1-6

B. Making Copies........................1-8

C. Jam Indicator.........................1-11

D. Add Paper Indicator ..............1-11

E. Replacing the Cartridge ........1-11

F. Changing the Density ...........1-14

G. Cleaning................................1-14

H. When Not Using the Copier for a

Long Time.............................1-16

V. IMAGE FORMATION.................1-17

A. Outline.....................................1-17

This chapter outlines the machine's specifications and how it may be operated.

CHAPTER 1 GENERAL DESCRIPTION

Blank Page

CHAPTER 1 GENERAL DESCRIPTION

I. FEATURES

1. Direct charging.

The charging roller directly charges paper, significantly reducing ozone emission.

2. Auto power-off.

The copier shuts off automatically when left alone for about 5 minutes after the last

copy operation.

3. Quick start.

The copier’s wait time is 0 second, always ready for quick copying work.

4. Cartridge type.

The core of the copier (photosensitive drum, toner case, charging roller, developing assembly, and cleaning assembly) is integrated into a single cartridge. The user need no more than replace the cartridge and perform simple cleaning to maintain the copier in top condition.

5. Variety of copy effects.

In addition to black toner, the user has a choice of several colors. Taking advantage of overlay copying, various copy effects may be obtained through mere replacement of the cartridge.

6. Compact and light.

The copier is compact and light, providing good portability. It can easily substitute as a personal copier.

7. Multifeeding (PC420/430/FC220).

A stack of copy paper may be placed on the pick-up tray. A press on the Copy Start key is all it takes to generate multiple copies.

1-1

CHAPTER 1 GENERAL DESCRIPTION

Item Body Portable (w/ grips) Copyboard Moving Light source Tungsten lamp of fuse type Lens Lens array Photosensitive medium OPC (24 dia.)

Type

Copying Indirect electrostatic Charging Roller (direct charging) Exposure Slit (moving copyboard) Copy density adjustment Development Dry Pick-up Separation Curvature + Static eliminator Cleaning Blade Fixing Plane heater

System

Document type Sheet, Book, 3-D object (2 kg/4.4 lb max.) Maximum document size LTR/A4; LGL* Reproduction ratio 1:1 (±1.2%) Wait time 0 sec (approx.; at 20°C/68°F) First copy 22 sec (LTR) Continuous copying Not available Copying speed

Copy size A4/LTR; LGL* max.; postcard min.

52 to 128 g/m2, Tracing paper, Colored paper, OHP film, Postcard (vertical), Labels, Wrapping paper (63 g/m2)

Copy paper type

Two-sided copying

Overlay copying

Copy tray

9 copies (approx.; A4/LTR, 80 g/m2)

Non-image width 2 mm (leading edge)

A4: 0 mm (left/right) LTR/LGL: 2 mm (left/right)

Auto power-off Available (5 min, approx.)

Performance

*PC430 only.

PC400/FC200 PC420/430/FC220

Manual Automatic (AE) or Manual

Manual tray Multifeeder

4 copies/min (approx.; A4R/LTR-R or smaller)

4 copies/min (A4R/LTR-R or smaller) 3 copies/min (LGL)

• Same edge orientation.

• Copying on each side no more than twice.

• Paper of 64 to 128 g/m

2

.

• Paper of 64 to 128 g/m2. • Copying on each side no more

than three times.

Multifeeder tray

5 mm deep (about 50 sheets of A4, 80 g/m2)

1 to 9 copies or F

II. SPECIFICATIONS

1-2

CHAPTER 1 GENERAL DESCRIPTION

Item

7.5° to 32.5°C/45.5° to 90.5°F

Others

Temperature

Operating environment

Humidity

Atmospheric pressure

5% to 85%

810.6 hPa to 1013.3 hPa (0.8 to 1 atm) Serial numbers

ZTG ✕✕✕✕✕ (PC400:WHITE) ZTH ✕✕✕✕✕ (PC400:GRAY)

120V, 60Hz

Power supply

0.7 kW or less

Maximum

Power consumption

Standby Continuous

0.1 W (approx.; 5 min; reference only)

0.2 kWh (reference only)

Ozone 0.01 ppm or less (average over 8 hr)

71 dB

Copying Standby

Noise

14.1 in./359 mm

Width

Dimensions

Depth Height

15.7 in./402 mm

4.1 in./108 mm

Weight (including cartridge)

16.6 lb/7.4 kg (approx.)

Keep wrapped to protect against humidity.

Copy paper Cartridge

See CHAPTER 9.

Consumables

Sound power level by ISO

PC400/FC200 PC420/430/FC220

Serial numbers

NVD

✕✕✕✕✕

(FC220:WHITE) ZTJ

✕✕✕✕✕

(PC420:WHITE)

RTL/PTQ

✕✕✕✕✕

(FC200:WHITE) UTP/UTQ

230V, 50Hz

RTM/PTR ✕✕✕✕✕ (FC220:WHITE) PTS ✕✕✕✕✕ (FC220:WHITE) PTT ✕✕✕✕✕ (FC220:WHITE)

Specifications subject to change without notice.

1-3

1-4

CHAPTER 1 GENERAL DESCRIPTION

III. NAMES OF PARTS

A. External View

(PC420/430/FC220) (PC400/FC200)

q Copyboard cover w Copyboard glass e Pick-up tray r Open/Close button

t Delivery assembly cover

open/close button

y Delivery assembly cover u Copy tray

➀

➁

➂

➃

➄

➅

➆

➀

➁

➂

➃

➄

➀

➁

➂

➃

➄

➅

Figure 1-301A

q Upper cover w Pick-up guide e Density correction switch r Power switch t Cartridge

Figure 1-302A

B. Cross Section

14 1317 16 15 1112

1031 2 4 5 6 7 8 9

12 11 98

CHAPTER 1 GENERAL DESCRIPTION

(PC420/430/FC220)

(PC400/FC200)

q Copyboard cover w Copyboard glass e Cleaning assembly r Primary charging roller t Scanning lamp y Lens array u Developing cylinder i Registration roller o Pick-up roller

!0 Pick-up tray !1 Transfer charging roller !2 Photosensitive drum !3 Fixing assembly !4 Delivery roller !5 Delivery tray !6 Heat exhaust fan !7 Delivery assembly cover

open/close button

Figure 1-301B

1-5

CHAPTER 1 GENERAL DESCRIPTION

6 4

5

C

A

AE

Error indications

:

Check jam/Supply paper : Jam and

: Check error

and

: Check error

and

: Check error

darker lighter

ON OFF

lighter darker

10

3

1

2

4 5

6

7

8

9

IV. OPERATION

A. Control Panel

1. PC420/430/FC220

q Density Control Dial w AE key

• Press it to select/deselect AE (automatic exposure) mode.

e AE Indicator

• ‘A’ goes ON when AE mode is selected.

• ‘A’ goes OFF when AE mode is deselected.

r Jam Indicator

• Flashes when paper jams inside the copier.

t Copy Count Indicator

• Displays the number of copies entered by pressing the Copy Count Set key.

• The count decreases for each copy made; the initial number is displayed after the last copy has been made.

• ‘ ’ is displayed to indicate pick-up failure or absence of paper; ‘ ’ is displayed in response to an error found by self diagnosis.

Figure 1-401A

y Copy Count Set Key

• Each press on the key increases the copy count (up to 9).

• A press while ‘ ’ is displayed causes ‘ ’ to appear, indicating all sheets on the pick-up tray will be used for continuous copying.

u Clear/Stop Key

• During continuous copying, the key serves as a Copy Stop key; the operation stops after finishing the ongoing copy.

• During standby, the key serves as a Clear key, setting the copy count to ‘’.

i Copy Start Key o Power Switch !0 Density Correction Switch

• Switches copy density among three settings (top for darker, bottom for lighter).

• The density is switched by varying the developing bias.

1-6

2. PC400/FC200

lighter darker

ON OFF

3

1

2

4

5

CHAPTER 1 GENERAL DESCRIPTION

q Density Control Lever w Density Indicator e Jam Indicator

• Flashes when paper jams inside the copier.

• Goes and remains ON when an error (self diagnosis) occurs in the copier.

r Main Indicator

• Remains ON when copying is ready.

t Power Switch

Figure 1-402A

(right view)

1-7

CHAPTER 1 GENERAL DESCRIPTION

Document

Size index

B. Making Copies

1) Switch the copier ON.

• If necessary, wait until the intensity of the scanning lamp reaches the specified value.

• The wait time is about 0 second.

• The copier will shut itself off in about 5 minutes if left alone without key operation.

2) Lift the copyboard cover, and place a document face down, along the size index.

• Place the document so that its center is at on the size index (Figure 1-401B); then, close the copyboard cover.

Figure 1-401B

3) Adjust the copy density to suit the document.

4) Slide the pick-up guide to suit the size of copy paper.

5) Set copy paper on the pick-up tray.

PC420/430/FC220

Place a stack of copy paper of a size suited to the document on the pick-up tray;

make sure the edges of the sheets are flush.

• The stack may be 5 mm (about 50 sheets of plain paper).

Figure 1-402B

6) Set the copy count.

PC420/430/FC220

Set the number of copies to make (1 to 9 or F) using the + key, and check the Copy

Count indicator.

1-8

CHAPTER 1 GENERAL DESCRIPTION

1cm1cm

7) Press the Copy Start key.

PC420/430/FC220

• To stop continuous copying, press the Clear/Stop key; the copier finishes the ongoing copy and stops. The copy count displays the initial count.

Copying on OHP Film

• Set one sheet of film on the pick-up tray for each copy.

• Depending on the environment of the site, a press on the Copy Start key may not pull the film inside the copier; if this is the case, perform the following:

1) Place copy paper under the film; stagger the sheet and film so that the leading edge of the film is about 1 cm behind that of the paper.

Figure 1-403B

2) Hold the trailing edge of the copy paper, and set the sheet and film on the pick-up tray.

3) While holding the trailing edge of the copy paper, press the Copy Start key. Remove the paper when the film begins to move into the copier; the paper will no longer serve its purpose.

Figure 1-404B

Note:

Take away each OHP film delivered to the copy tray.

1-9

CHAPTER 1 GENERAL DESCRIPTION

Manual Feeding

PC400/FC200

1) Set a document on the copyboard.

2) Adjust the Density Control lever to suit the document.

3) Slide the pick-up guide to suit the size of copy paper.

4) Insert copy paper along the pick-up guide.

• The copier starts copying operation automatically as soon as it detects paper.

• To continue copying, insert the next paper when the copyboard starts to return.

Making Two-Sided Copies

1) Turn over the copy while maintaining its feeding direction.

• Make sure that the paper is not moist or curled.

• Use paper of 64 to 128 g/m

2

when making two-sided copies.

• Do not process each side more than twice.

Figure 1-405B

Making Overlay Copies

You can make two- or three-colored copies by replacing the cartridge.

• Use paper of 64 to 128 g/m

2

when making overlay copies.

• Do not process each side more than three times.

1-10

CHAPTER 1 GENERAL DESCRIPTION

C. Jam Indicator

The Jam indicator starts to flash when paper jams inside the copier.

• Take care not to tear the paper when removing it; otherwise, be sure to remove all

pieces of paper.

1) Move the copyboard to the left until it stops.

2) Press the open/close button, and open the top cover.

3) Remove the jam.

• If the jam is in the pick-up or fixing assembly, hold the edge of the paper with both

hands, and pull it out slowly through the opening of the top cover.

• If the jam is in the delivery assembly, press the delivery assembly open/close

button to open the delivery cover; then, detach the paper from the delivery cover, and pull it slowly in the direction of delivery.

4) Close the top cover and delivery cover; then, move the copyboard to the center.

• To resume copying, switch the copier ON, set the desired copy count, and set the

copy density.

D. Add Paper Indicator

PC420/430/FC220

’ flashes if you try to make a copy when the pick-up tray has run out of paper.

‘

1) Check the pick-up tray for copy paper.

2) If no paper is on the tray, place paper. If a stack of paper is on the tray, remove it first, then place it back after putting its edges flush.

3) Press the Copy Start key.

• ‘ ’ goes OFF, and the remaining number of copies are made.

E. Replacing the Cartridge

1. Time to Replace the Cartridge

When the cartridge is running out of toner, copies tend to show white lines or vertical

white spots (Figure 1-401E).

Figure 1-401E

1-11

CHAPTER 1 GENERAL DESCRIPTION

If white lines or spots appear on copies, replace the cartridge as follows:

1) Remove the cartridge from the copier, and rotate it several times as shown in Figure 1-402E.

Figure 1-402E

2) Set the cartridge back in the copier, and make a copy.

a. If the output returns to normal,

• The cartridge may be used further; advise the user, however, to obtain a spare

cartridge.

b. If the output fails to return to normal,

• Replace the cartridge as described below.

2. Replacing the Cartridge

1) Move the copyboard to the left until it stops; then, press the open/close button to open the top cover.

2) Slide the cartridge out of the copier.

3) Hold the cartridge with the Warning label facing up, and rotate it about 90 degrees in both directions.

1-12

Figure 1-403E

CHAPTER 1 GENERAL DESCRIPTION

4) Detach the tip of the seal attached to the cartridge, and pull it straight out to the front; about 50 cm.

Figure 1-404E

5) Hold the cartridge with its Warning label facing the left, and insert it in the copier with care until it butts against the rear.

Figure 1-405E

6) Close the top cover, and return the copyboard to the center.

Note:

You can replace the black toner cartridge with any color cartridge the same way.

1-13

CHAPTER 1 GENERAL DESCRIPTION

Density Correction Switch

Auto density

correction

F. Changing the Density

PC420/430/FC220

You have a choice of three settings for automatic density adjustment mode (AE);

switch the density if the copy is too dark or too light.

Figure 1-401F

Note:

You can also switch the density among three settings in manual density adjustment mode.

G. Cleaning

Advise the user to clean the following if the copies are soiled.

1. Copyboard Glass/Copyboard Cover

Wipe the part with a moist cloth; then, dry wipe it. If dirt cannot be removed, wipe the part using mild detergent; then, dry wipe it.

1-14

CHAPTER 1 GENERAL DESCRIPTION

Fiber lens (face side)

2. Lens Array

1) Move the copyboard to the left until it stops.

2) Put a cotton wad in the lens array groove, and move it back and forth lightly.

Figure 1-401G

3) Open the upper cover, and remove the cartridge.

4) Put a flat-tipped cotton wad in the lens array (rear) groove, and move it back and

forth.

Figure 1-402G

1-15

CHAPTER 1 GENERAL DESCRIPTION

Pick-up roller

3. Pick-Up Roller

1) Open the top cover.

2) Dry wipe the pick-up roller while rotating it in pick-up direction with a cloth.

Note:

Do not make copies until the pick-up roller has completely dried.

Figure 1-403G

H. When Not Using the Copier for a Long Time

Advise the user to perform the following if she/he does not have any plan to use the

copier for a long time.

1) Disconnect the power plug.

2) Place the copier in a dust-free, sunlight-free place.

1-16

Photo-

sensitive drum

CHAPTER 1 GENERAL DESCRIPTION

1-17

V. IMAGE FORMATION

A. Outline

Figure 1-501A

The copier is an indirect photorepro graphic system constructed as shown in Figure 1-501A.

The image formation process con sists of seven steps as discussed below.

Step 1 : Primary charging (negative) Step 2 : Image exposure Step 3 : Development (AC and DC bias) Step 4 : Transfer (negative) Step 5 : Separation Step 6 : Fixing Step 7 : Drum cleaning

Figure 1-502A

The photosensitive drum has a layer construction: the photoconductive layer on the outside and the conductive alu minum base, inside.

Figure 1-503A

Delivery

: Flow of copy paper : Rotation of drum

4. Transfer

Latent static Image Formation

2. Image exposure

3. Development

7. Drum cleaning

Registration

Multifeeder

6. Fixing

5. Separation

1. Primary charging

Photoconductive layer

Aluminum base

Copyboard glass

Scanning lamp

Primary charging roller

Fixing film

Pressure roller

Cleaning blade

Lens array

Developing blade

Developing cylinder

Transfer charging roller

Static eliminator

CHAPTER 1 GENERAL DESCRIPTION

1-18

Canon FC200, FC220, PC400, PC420, PC430 Service Manual

SERVICE MANUAL

INTRODUCTION

CONTENTS

CHAPTER 1

I. FEATURES

II. SPECIFICATIONS

III. NAMES OF PARTS

IV. OPERATION

V. IMAGE FORMATION