The Back Of The Output Is Soiled - Canon imageCLASS D600s Service Manual

CHAPTER 7 TROUBLESHOOTING
Component
Cassette pickup roller
Manual feed pickup
roller
Vertical path roller
Registration roller
Primary charging roller
Developing cylinder
Photosensitive drum
Transfer charging roller
Fixing film
Fixing locking roller
Delivery roller
* Approximate; in mm.
*1: Can be caused by dirt from the roller.

3.1.14 The back of the output is soiled.

Paper
1) Is the paper soiled?
YES: Replace the paper.
Fixing locking roller
2) Execute fixing locking roller cleaning. Is the problem correct? (See
4.1 of Chapter 6.)
YES: Advise the user to clean the fixing locking roller periodically.
Transfer guide
3) Is the surface of the transfer guide soiled with toner?
YES: Clean it.
Static eliminator
4) Is the static eliminator soiled with toner?
YES: Clean it.
Rollers (cassette pickup roller, vertical path roller, registration roller, transfer charging
roller, fixing locking roller), Paper path
5) Is the problem noted at specific internals?
YES: Isolate the cause by referring to T04-202-01, and clean it.
NO:
7-26
COPYRIGHT © 2001 CANON INC.
Chapter7B.p65
Image Faults by Component
Diam- Image
eter* fault White Soiling
interval* spot
38.0 -
32.0 -
14.3 44.9
13.9 43.8
12.0 37.3
16.0 42.0 "√"
30.0 93.3 "√"
14.6 43.7 "√"
24.0 75.4
20.4 64.1
12.4 39.0
T07-301-01
If the problem is not corrected, replace the part.
Clean the paper path. If the problem cannot be corrected, replace
the part.
CANON imageCLASS D600s/PC1060s/PC1200s/iR1200s REV. 0 SEPT. 2001
26
Type of image fault
Soiled Fixing Blurring
back fault
"√"
*1
"√"
*1 "√"
*1 "√"
"√" "√"
"√" "√"
*1
"√" "√"
*1
"√" "√"
*1
"√"
8/26/01, 3:48 PM
Poor
sharp-
ness
"√"
"√"
"√"
"√"