Minolta EP5000 - Page 390

Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
T-115
1149SBT050307A
7) Blank Streaks or Bands
Cause Step Check Item Result Action
Plugged Db
1
Is Db plugged with foreign
matter, caked toner, etc.?
YES
Remove foreign matter. If
the problem persists,
change the developer.
Drum charge failure
2
Are the Comb Electrode
and grid mesh dirty?
YES
Clean or change the PC
Drum Charge Corona.
3
Is the Drum Charge Corona
Wire Cleaner at the home
position?
NO
Check the corona wire
cleaning mechanism.
Image transfer fail-
ure
4
Is the Image Transfer Coro-
na wire dirty?
YES
Clean or change the Image
Transfer Corona.
5
Is the Corona Wire Cleaner
at the home position?
NO
Check the corona wire
cleaning mechanism.
Defective PC Drum
Paper Separator
Fingers
6
Are the PC Drum Paper
Separator Fingers dirty or
deformed?
YES
Clean or replace the PC
Drum Paper Separator Fin-
gers.
Image Erase Lamp
lit at abnormal timing
7
Does the Image Erase
Lamp light up at abnormal
timing?
YES
Check the Image Erase
Lamp.
Fusing failure
8
Is the Upper Fusing Roller
dirty or scratched?
YES
Clean or change the Upper
Fusing Roller.
9
Are the Upper Paper Sepa-
rator Fingers dirty or
scratched?
YES
Clean or change the Upper
Paper Separator Fingers.