The Copy Is Foggy (Paper Feed Direction); The Copy Has Dark Lines (Paper Feed Direction, Relatively Narrow); The Copy Has Dark Lines (Paper Feed Direction, Thin); The Copy Has White Spots (Paper Feed Direction) - Canon PC400 Service Handbook

7. The copy is foggy (paper feed direction).

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

9. The copy has dark lines (paper feed direction, thin).

Cause
Scanner
Cartridge

10. The copy has white spots (paper feed direction).

11. The copy has white lines (paper feed direction).

Cause
Fixing assembly
Cartridge
Transfer charging roller
Cartridge
Step Checks
1 Clean the scanning lamp,
reflecting plate, and lens.
Is the problem corrected?
2 Take out the cartridge, and put it
back in.
Is the problem corrected?
Step Checks
1 Press the Copy Start key, and
switch the copier OFF in the
middle of operation; then, open
the top cover.
Does the copy image have white
spots or white lines before
fixing?
2 Rotate the cartridge several
times.
Is the problem corrected?
3 Is there foreign matter or
scratches on the transfer
charging roller?
CHAPTER 3 IMAGE TROUBLESHOOTING
YES/NO Remedies
YES End.
YES End.
NO Replace the cartridge.
YES/NO Remedies
NO Check the fixing assembly.
YES Advise the user that the
cartridge is running short
of toner.
YES Remove the foreign
matter, or replace the
transfer charging roller.
NO Replace the cartridge.
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