Canon FY8-23AV-000 manual Copy is blank, Copy is solid black

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CHAPTER 3 IMAGE TROUBLESHOOTING

21. The copy is blank.

Cause

Step

Checks

YES/NO

Remedies

 

 

 

 

 

Cartridge

1

Is the cartridge set in the copier?

NO

Set the cartridge in the

 

 

 

 

copier.

 

 

 

 

 

 

2

Does the cartridge have toner?

NO

Replace the cartridge.

 

 

 

 

 

 

3

Has the seal been removed from

NO

Remove the seal.

 

 

the cartridge?

 

 

 

 

 

 

 

 

4

Set the cartridge in the copier,

NO

Make adjustments so that

 

 

and close the copier.

 

the shutter opens

 

 

Does the drum cover shutter

 

smoothly.

 

 

open without fail?

 

 

 

 

 

 

 

Drum drive assembly

5

Is the drum drive gear rotating

NO

Check the drum drive

 

 

normally?

 

assembly.

 

 

 

 

 

High-voltage

6

Are the primary charging

YES

Check the high-voltage

transformer

 

terminal at the front left of the

 

transformer (DC controller/

 

 

cartridge and the high-voltage

 

DC power supply PCB).

 

 

terminal at the bottom of the

 

 

Terminals for primary

 

NO

1. Check the contact for

 

copier in firm contact?

charging,

 

 

electrical continuity.

 

 

 

Cartridge

 

 

 

2. Try replacing the

 

 

 

 

cartridge.

 

 

 

 

 

22. The copy is solid black.

Cause

Step

Checks

YES/NO

Remedies

 

 

 

 

 

 

1

Is the scanning lamp ON during

YES

Check if the cartridge is

 

 

copying operation?

 

set properly.

 

 

 

 

 

 

 

 

NO

See “The scanning lamp

 

 

 

 

fails to go ON.”

 

 

 

 

 

3-13

Image 31
Contents Service Handbook Copyright 1998 Canon INC Contents Troubleshooting Malfunctions Self Diagnosis Page Durables Periodically Replaced PartsPeriodical Servicing Storing Sealed Cartridges 1D Temperature/Humidity Specifications2D 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 Site Environment Making Initial ChecksChecking 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 is foggy cross feed direction Copy has a blurred imageCopy 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 rotateAt time of jam Paper feeding normallyFixing heater fails to operate Copy Paper Jams Separation/Feeding Assembly Pick-Up AssemblyFixing/Delivery Assembly Double Feeding Feeding FaultsWrinkles 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