e-STUDIO350/352/353/450/452/453
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TROUBLESHOOTING
5 - 118
10) White banding (at right angle with the feeding direction)
Defective area
Step
Check items
Prescription
Main charger
1
Is there a foreign matter on the
charger?
Remove the foreign matter.
2
Is the connector in proper contact
with the terminal?
Clean or adjust the terminal.
Drum
3
Is there any abnormality on the
drum surface?
Replace the drum.
Discharge LED
4
Does the discharge LED light nor-
mally?
Replace the discharge LED or clean the
terminals.
Developer unit
5
Is the developer sleeve rotating nor-
mally? Is there any abnormality on
the sleeve surface?
Check the drive system of the developer
unit, or clean the sleeve surface.
Drive system
6
Are the drum and scanner jittering? Check each drive system.
High-voltage trans-
former (Main
charger / Developer
bias / Transfer
charger)
7
Is the high-voltage transformer out-
put defective?
Adjust the output, or replace the trans-
former.
Transfer charger
8
Is any foreign matter such as paper
shred sticking to the transfer
charger wire?
Remove the foreign matter from the wire.
Feed system
9
Is the aligning amount proper?
Adjust the aligning amount.
Feeding direction
05/11