Canon NP6218, FY8-13EX-000 The copy is foggy horizontal, 10-60, Developing assembly spacer

Models: FY8-13EX-000 NP6218

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19. The copy is foggy (horizontal).

CHAPTER 10 TROUBLESHOOTING

19. The copy is foggy (horizontal).

Cause

Step

Checks

Results

Action

 

1

Is the problem noted at the same

YES

Go to step 5.

 

 

position on all copies made in

 

 

 

 

Direct?

 

 

Scanning lamp

2

Does the scanning lamp flicker

YES

Check the scanning

 

 

when the scanner is moving

 

lamp.

 

 

forward?

 

 

Developing assembly spacer

Development bias

Scanner

Feeding assembly

3Check the developing assembly spacer for toner adhesion or deformation. Is toner noted on the portion (photosensitive drum surface) where the developing assembly spacer comes into contact?

4Is the development bias applied normally?

5Make reduced copies, and check them against copies made in Direct. Is the problem noted at different positions?

YES Clean or, as necessary, replace the developing assembly.

NO

Re-insert the developing

 

assembly; then, check

 

the wiring.

YES

Check the scanner.

NO

Check the feeding

 

assembly.

10-60

COPYRIGHT © 1997 CANON INC.

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

Page 324
Image 324
Canon NP6218, FY8-13EX-000 service manual The copy is foggy horizontal, 10-60, Developing assembly spacer