Canon FY8-23AV-000 manual Troubleshooting Malfunctions, Self diagnosis PC400/FC200

Page 33

CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS

CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS

A. Troubleshooting Malfunctions

1. (self diagnosis; PC400/FC200)

Cause

Step

Checks

YES/NO

Remedies

 

 

 

 

 

 

1

Switch the copier ON.

YES

See ‘E00’.

 

 

Does the Jam indicator remain

 

 

 

 

NO

See the discussions on

 

 

On for about 0.5 sec, and does

 

 

 

‘E2’, ‘E6’, and ‘E9’.

 

 

the copier go OFF automatically

 

 

 

 

 

 

 

thereafter?

 

 

 

 

 

 

 

2.

E0

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

Cause

Step

Checks

YES/NO

Remedies

 

 

 

 

 

 

 

 

 

 

Thermistor (TH1)

1

Set the meter to the ‘12VDC’

NO

Check the wiring from the

 

 

 

 

 

range, and wait until the fixing

 

DC controller/DC power

 

 

 

 

 

heater is sufficiently cool.

 

supply PCB to the ther-

 

 

 

 

 

Measure the voltage between

 

mistor (TH1); if normal,

 

 

 

 

 

J603-1 (+) and J603-2 (-).

 

replace the fixing assem-

 

 

 

 

 

Is it about 3.2 V or more?

 

bly.

 

 

 

 

 

 

 

 

 

 

 

 

2

Does the fixing heater operate

NO

See “The fixing heater fails

 

 

 

 

 

normally?

 

to operate.”

 

 

DC controller/DC

3

Switch the copier ON, and make

YES

Replace the DC controller/

 

 

power supply PCB

 

a copy.

 

DC power supply PCB.

 

 

 

 

 

Measure the voltage between

 

 

 

 

Fixing assembly

 

NO

Check the wiring from the

 

 

 

J603-1 and J603-2 once again.

 

 

 

 

 

 

DC controller/DC power

 

 

 

 

 

Is the voltage lower than that

 

 

 

 

 

 

 

supply PCB to the ther-

 

 

 

 

 

measured in step 1?

 

 

 

 

 

 

 

mistor (TH1); if normal,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

replace the fixing assem-

 

 

 

 

 

 

 

bly.

 

 

 

 

 

 

 

 

 

 

4-1

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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 Lens Array for Dirt Checking the Feeding AssemblyChecking the Transfer Charging Roller Checking the Copy PaperImage 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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