Canon PC400, Руководство по обслуживанию

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CHAPTER 3 IMAGE TROUBLESHOOTING
3-13
21. The copy is blank.
Cause Step Checks YES/NO Remedies
Cartridge
1 Is the cartridge set in the copier? NO Set the cartridge in the
copier.
2 Does the cartridge have toner? NO Replace the cartridge.
3 Has the seal been removed from
the cartridge? NO Remove the seal.
4 Set the cartridge in the copier,
and close the copier.
Does the drum cover shutter
open without fail? NO Make adjustments so that
the shutter opens
smoothly.
Drum drive assembly
5 Is the drum drive gear rotating
normally? NO Check the drum drive
assembly.
High-voltage
transformer 6 Are the primary charging
terminal at the front left of the
cartridge and the high-voltage
terminal at the bottom of the
copier in firm contact? YES Check the high-voltage
transformer (DC controller/
DC power supply PCB).
Terminals for primary
charging,
Cartridge NO 1. Check the contact for
electrical continuity.
2. Try replacing the
cartridge.
22. The copy is solid black.
Cause Step Checks YES/NO Remedies
1 Is the scanning lamp ON during
copying operation? YES Check if the cartridge is
set properly.
NO See “The scanning lamp
fails to go ON.”