6
6
6-4
6-4
Trouble Shooting > Trouble Shooting Items > Image Defects > White Spots
Trouble Shooting > Trouble Shooting Items > Image Defects > White Spots
Completely Blank
No image prints
Cause
Solution
1) The laser shutter open/close projection part of
the cartridge is damaged
Replace the cartridge.
2) The laser shutter arm and laser shutter are
malfunctioning or damaged
If the laser shutter arm or laser shutter does not
move smoothly or if the part is damaged, replace
any defective parts.
3) Poor developing bias contact with the cartridge
Clean the contact if dirty.
4) The high-voltage power supply is defective
Replace the engine controller unit.
All Black
Image is all black
Cause
Solution
1) Poor primary charging bias contact with the
cartridge
Clean the contact if dirty.
2) The primary charging roller is defective
Replace the cartridge.
3) The high-voltage power supply is defective
Replace the engine controller unit.
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■
F-6-4
F-6-4
F-6-5
F-6-5
T-6-3
T-6-3
White Spots
White spots appear in image
Cause
Solution
1) Poor contact exists to the static charge
eliminator
Clean the contact if dirty.
2) The transfer roller is deformed or has
deteriorated
Replace the transfer roller.
3) Poor contact exists between the transfer roller
and its shaft
Clean the contact if dirty.
4) The high-voltage power supply is defective
Replace the engine controller unit.
5) Scratches/stain on the Drum
Replace the Cartridge.
■
F-6-6
F-6-6
T-6-4
T-6-4
Содержание mf6600 Series
Страница 15: ...1 1 Product Overview Product Overview Product Lineups Product Features Specifications Name of Parts ...
Страница 167: ...5 5 Adjustment Adjustment Scanning System Adjustment Electrical Adjustment ...
Страница 170: ...6 6 Trouble Shooting Trouble Shooting Test Print Trouble Shooting Items Version Up ...
Страница 182: ...7 7 Error Codes Error Codes Error Code Fax Error Code ...
Страница 223: ... Appendex Appendex Service Tools Solvents and Oil List General Timing Chart General Circuit Diagram Appendex ...