Toshiba e-studio166 Service Handbook page 190

10)White banding (at right angle with the feeding direction)
Defective area
Main charger
Drum
Discharge LED
Developer unit
Drive system
High-voltage transformer
(Main charger / Developer
bias / Transfer charger)
Transfer charger
Feed system
e-STUDIO163/166/203/206
TROUBLESHOOTING
Fig. 5-10
Step Check items
1 Is there a foreign matter on the
charger?
2 Is the connector in proper contact
with the terminal?
3 Is there any abnormality on the drum
surface?
4 Does the discharge LED light nor-
mally?
5 Is the developer sleeve rotating nor-
mally?
Is there any abnormality on the
sleeve surface?
6 Are the drum and scanner jittering?
7 Is the high-voltage transformer out-
put defective?
8 Is any foreign matter such as paper
shred sticking to the transfer charger
wire?
9 Is the aligning amount proper?
5 - 30
Prescription
Remove the foreign matter.
Clean or adjust the terminal.
Replace the drum.
Replace the discharge LED or check
the harness and the circuit.
Check the drive system of the devel-
oper unit, or clean the sleeve sur-
face.
Check each drive system.
Adjust the output, or replace the
transformer.
Remove the foreign matter from the
wire.
Adjust the aligning amount.
© 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved