Minolta EP3010 Manual page 328

7. Blank Streaks or Bands
Cause Step
Plugged Db
1
Drum charge fail-
ure 2
3
Image transfer fail-
4
ure
5
Defective PC
Drum Paper Sepa- 6
rator Fingers
Image Erase
Lamp lit at abnor- 7
mal timing
Fusing failure
8
9
Check Item
Is the Db plugged with foreign
matter, caked toner, etc.?
Are the PC Drum Charge
Corona wire and grid mesh
dirty?
Is the Drum Charge Corona
Wire Cleaner at the home
position?
Is the Image Transfer Corona
wire dirty?
Is the Corona Wire Cleaner at
the home position?
Are the PC Drum Paper Sepa-
rator Fingers dirty or
deformed?
Does the Image Erase Lamp
light up at abnormal timing?
Is the Upper Fusing Roller
dirty or scratched?
Are the Upper Paper Separa-
tor Fingers dirty or scratched?
T-91
Result Action
Remove foreign matter. If the
YES problem persists, replace the
developer.
Clean or replace the PC Drum
YES
Charge Corona.
Check the corona wire clean-
NO
ing mechanism.
Clean or replace the Image
YES
Transfer Corona.
Check the corona wire clean-
NO
ing mechanism.
Clean or replace the PC Drum
YES
Paper Separator Fingers.
YES Check the Image Erase Lamp.
Clean or replace the Upper
YES
Fusing Roller.
Clean or replace the Upper
YES
Paper Separator Fingers.