The Output Is Foggy Vertically; The Output Has Fuzzy, Black Vertical Lines - Canon iR1200 Series Service Manual

CHAPTER 7 TROUBLESHOOTING
Selfoc lens array (contact sensor)
9) Clean the selfoc lens array of the contact sensor. Is the problem cor-
YES: End.
Contact sensor LED intensity auto adjustment
10) Execute contact sensor LED intensity auto adjustment. Is the prob-
YES: End.
Connector
11) Is the connection of the following connectors normal: J501 and
NO:
Contact sensor
12) Try replacing the contact sensor. Is the problem corrected?
YES: End.
Analog processor PCB, Image processor PCB
13) Try replacing the analog processor PCB. Is the problem corrected?
YES: End.
NO:

3.1.3 The output is foggy vertically.

3.1.4 The output has fuzzy, black vertical lines.

Transfer guide assembly
1) Clean the transfer guide assembly. Is the problem corrected?
YES: End.
Drum unit, Developing unit
2) Try replacing the drum unit. Is the fault corrected?
YES: End.
NO:
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COPYRIGHT © 2002 CANON INC.
rected? (See 4.3.1 of Chapter 6.)
lem corrected? (See 1.2.4.1 of Chapter 7.)
J503 on the analog processor PCB; J317 on the image processor
PCB; J504 of the contact sensor?
Connect them firmly. If the flexible cable has a scratch, replace it.
Replace the image processor PCB.
Replace the developing unit.
2000 2000 2000 2000 CANON iR1200/iR1300 Series REV. 0 AUG. 2002