The Back Of The Copy Is Soiled; The Copy Has Faulty Fixing - Canon iR8500 Servise Manual

3.3.13 The back of the copy is soiled

Transfer guide
1) Is the transfer guide soiled with toner?
YES: Perform the following:
Drum cleaner
2) Is the paper feed assembly soiled with toner?
YES: Perform the following:
Fixing assembly
3) Is the fixing assembly lower roller soiled?
YES: Perform the following:
NO:

3.3.14 The copy has faulty fixing

Copy paper
1) Does the paper have poor fixing (e.g., thick paper)?
YES: Start user mode, and select thick paper (common settings>paper
2) Is the copy paper of a recommended type?
NO:
Fixing assembly
3) Does the problem occur vertically?
YES: Check the fixing assembly for a scratch and dirt.
NO:
COPYRIGHT© 2001 CANON INC.
1. Clean the transfer guide.
2. Check the transfer guide bias.
3. Check the developing assembly for leakage of toner.
1. Clean the feeding assembly.
2. Check the drum cleaner assembly for leakage of toner.
1. Clean the fixing assembly lower roller.
2. Clean the fixing assembly inlet guide.
3. Check the fixing upper roller and the web for dirt.
Perform the following:
1. Check the registration roller for dirt.
2. Check the delivery roller and the separation claw for dirt.
type). Advise the user to use a specific cassette for thick paper.
Try a recommended type of paper. If the results are good, advise
the user on the use of recommended types of paper.
Check the fixing roller for nip width.
2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001
CHAPTER 6 TROUBLESHOOTING
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