Canon SmartBase 1270D, Руководство по обслуживанию

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COPYRIGHT © 2002 CANON INC. 2000 2000 2000 2000 CANON SmartBase PC1210D/1230D/1270D REV. 1 MAR. 2002
CHAPTER 7 TROUBLESHOOTING
7-22
3.1.1 The output is too light.
Image density
1) Is the image density setting correct?
•
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.
NO: Correct the image density setting.
Paper
2) Try paper fresh out of package (newly opened). Is the problem cor-
rected?
YES: 1. The paper may be moist. Advise the user on the correct method
of storing paper.
2. Advise the user that the use of non-recommended paper may
not bring about the best results.
General conditions
3) Execute ‘PRINT test’. Is the output image normal? (See 3.21.5 of
Chapter 2.)
YES: Go through steps 14) to 18).
NO:
Go to step 4.
General conditions
4) Turn off the machine while an image is printing on the photosensi-
tive drum. Is the toner on the drum surface developed?
YES: Go through steps 11) to 13).
NO:
Go through steps 5) to 10).
Cartridge
5) Take out the cartridge, and rock it lightly 5 to 6 times. Is the prob-
lem corrected?
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-
tridge soiled? (Remove the cartridge to check.)
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-
troller PCB (J205, J207) normal?
NO: Correct it. If it cannot be corrected, replace the faulty part.