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© 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
e-STUDIO281c/351c/451c
TROUBLESHOOTING
5 - 127
5
12)White banding (at right angles to feeding direction)
Fig. 5-12
Cause/Section
Step
Check items
Measures
Main charger
1
Is there foreign matter on the charger?
Remove foreign matter.
2
Is the terminal contact poor?
Clean or adjust the terminals.
Drum
3
Is there any abnormalities on the drum
surface?
Replace the drum.
4
Is the drum grounded?
Check the contact of the grounding plate.
Discharge lamp
5
Is the discharge lamp lighting properly?
Replace the discharge lamp or clean ter-
minals.
Developer unit
6
Is the developer sleeve rotating correctly?
Is there any abnormalities on the sleeve
surface?
Check the developer drive system, or
clean the sleeve surface.
7
Is the connection of developer bias supply
terminal normal?
Correct it.
Drive systems
8
Is the drum, scanner or transfer belt jit-
tery?
Check each drive system.
High-voltage
transformer
(main charger
wire/grid, 1st/
2nd transfer
roller and devel-
oper bias)
9
Is the high-voltage transformer output
defective?
Check/correct any electric leakage and
related circuits.
If the high-voltage transformer does not
work, replace it.
Feeding direction
Summary of Contents for e-studio281c
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