Canon FY8-23AV-000 manual Contents

Page 3

CONTENTS

CHAPTER 1 MAINTENANCE AND INSPECTION

A.

Periodically Replaced Parts

1-1

2. Storing and Handling Unsealed

B.

Durables

1-1

Cartridges

1-3

C.

Periodical Servicing

1-1

E. Image Adjustment Basic Procedure

D.

Notes on Cartridge

1-2

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

1-5

 

1. Storing Sealed Cartridges

1-2

F. Points to Note

1-6

CHAPTER 2 STANDARDS AND ADJUSTMENTS

1

2

3

A. Mechanical

2-1

1.Image Leading Edge Non-Image Width (position of white paint on

back of glass)

2-1

2.Image Leading Edge Margin (point of detection for registration)

................................................2-1

B. Electrical

2-2

1.Adjusting the Intensity (VR604)

................................................2-2

2.Adjusting the AE Mechanism

(VR602, VR603)

2-4

4

5

CHAPTER 3 IMAGE TROUBLESHOOTING

A. Making Initial Checks

3-1

1.

Site Environment

3-1

2.

Checking the Documents

3-1

3.Checking the Copyboard Cover and Copyboard Glass for Dirt

and Scratches

3-2

4.Checking the Lens Array for Dirt

................................................3-2

5.Checking the Transfer Charging

Roller

3-2

6.Checking the Feeding Assembly

................................................3-2

7.

Checking the Copy Paper

3-2

8.

Checking the Durables

3-2

9.

Others

3-4

B. Samples of Image Faults

3-6

C. Troubleshooting.....................................................by Image Fault

3-7

 

 

1.The copy is too light (halftone

areas only)

3-7

2.The copy is too light (dark areas

as well)

3-7

3.The copy is too light (extremely

light overall)

3-7

4.The copy has uneven density

(darker at front)

3-8

5.The copy has uneven density

(lighter at front)

3-8

6. The copy is foggy (overall)

3-8

7.The copy is foggy (paper feed

direction)

3-9

8.The copy has dark lines (paper feed direction, relatively narrow).

................................................3-9

9.The copy has dark lines (paper

 

feed direction, thin).

................3-9

10.

The copy has white spots (paper

 

feed direction)

3-9

11.

The copy has white lines (paper

 

feed direction)

3-9

12.

The copy has white spots (cross

 

feed direction)

3-10

13.

The back of the copy is soiled.

 

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

3-10

6

7

i

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Contents Service Handbook Copyright 1998 Canon INC Contents Troubleshooting Malfunctions Self Diagnosis Page Periodically Replaced Parts DurablesPeriodical Servicing 1D Temperature/Humidity Specifications Storing Sealed Cartridges2D Transportation Storing and Handling Unsealed Cartridges Reference Pre-Checks Image Adjustment Basic ProcedurePoints to Note Glass MechanicalElectrical Adjusting the Intensity VR6042B PC400/FC200 Adjusting the AE Mechanism VR602, VR603 JP607 JP605 JP604 Control panel PCB Screwdriver Standards and Adjustments Making Initial Checks Site EnvironmentChecking the Documents Checking the Copy Paper Checking the Feeding AssemblyChecking the Lens Array for Dirt Checking the Transfer Charging RollerImage Troubleshooting Others Image Troubleshooting Samples of Image Faults YES Troubleshooting by Image FaultCopy is foggy overall Back Replace the cartridge Is the problem corrected? Back of the copy is soiled Copy has white spots cross feed directionCopy has faulty fixing Copy has a blurred image Copy is foggy cross feed directionCopy has poor sharpness focus Copy is solid black Copy is blankImage Troubleshooting Self diagnosis PC400/FC200 Troubleshooting MalfunctionsCopyboard Does the copying operation start AC power is absent Scanning lamp fails to go on Pick-up failsCopyboard fails to move Main motor fails to rotatePaper feeding normally At time of jamFixing heater fails to operate Copy Paper Jams Separation/Feeding Assembly Pick-Up AssemblyFixing/Delivery Assembly Feeding Faults Double FeedingWrinkles Sensors and Solenoids Arrangement and Functions of Electrical PartsSwitches Lamp, Heater, Motor, and Others Printed Circuit Board PCB DC Controller/DC Power Supply PCB Variable Resistors VR and Check Pins by PCBPC400/FC200 Control Panel PCBSelf Diagnosis Self Diagnosis General Timing Chart PC420/430/FC220 General Timing Chart A4, 2 copies Signals Signals/Abbreviations ListAbbreviations General Circuit Diagram PC420/430/FC220 General Circuit Diagram Special Tools Table Solvents/Oils Table LTR/A4 LGL SpecificationsNVD Prepared by This publication is printed on 70% reprocessed paper
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