The Output Is Too Light - Canon SmartBase PC1200s Service Manual

CHAPTER 7 TROUBLESHOOTING

3.1.1 The output is too light.

Image density
1) Is the image density setting correct?
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•
NO:
Paper
2) Try paper fresh out of package (newly opened). Is the problem cor-
YES: 1. The paper may be moist. Advise the user on the correct method
General conditions
3) Execute 'PRINT test'. Is the output image normal? (See 3.21.5 of
YES: Go through steps 14) to 18).
NO:
General conditions
4) Turn off the machine while an image is printing on the photosensi-
YES: Go through steps 11) to 13).
NO:
Cartridge
5) Take out the cartridge, and rock it lightly 5 to 6 times. Is the prob-
YES: End.
High-voltage contact (between cartridge and high-voltage spring)
6) Is the high-voltage spring used to supply high voltage to the car-
YES: Clean it.
High-voltage contact (between high-voltage spring and DC controller PCB; J205, J207)
7) Is the connection between the high-voltage spring and the DC con-
NO:
7-22
COPYRIGHT © 2001 CANON INC.
In the case of copier functions: PRINT EXPOSURE of COMMON
SETTINGS and STANDARD EXPOSURE of COPY SETTINGS
on user mode menu.
In the case of printer functions or fax functions, PRINT EXPO-
SURE of COMMON SETTINGS on user mode menu.
Correct the image density setting.
rected?
of storing paper.
2. Advise the user that the use of non-recommended paper may
not bring about the best results.
Chapter 2.)
Go to step 4.
tive drum. Is the toner on the drum surface developed?
Go through steps 5) to 10).
lem corrected?
tridge soiled? (Remove the cartridge to check.)
troller PCB (J205, J207) normal?
Correct it. If it cannot be corrected, replace the faulty part.
2000 2000 2000 2000 CANON SmartBase PC1200s/iR1200s REV. 0 DEC. 2001