JUNE 2002 © TOSHIBA TEC
5 - 117
e-STUDIO550/650/810 TROUBLESHOOTING
Defective area
Step
Check Items
Prescription
Main charger
Drum
Discharge lamp
Developer unit
Drive system
High-voltage transformer
(main charger and transfer
charger)
1
Is there a foreign object on the charger?
2
Is the connector in proper contact with
the terminal?
3
Is there any abnormality on the drum sur-
face?
4
Does the discharge lamp light normally?
5
Is the developer sleeve rotating normally?
Is there any abnormality on the sleeve
surface?
6
Are the drum and scanner jittering?
7
Is the output from the high-voltage trans-
former normal?
Remove the foreign object.
Clean or adjust the terminal.
Replace the drum.
Replace the discharge lamp or clean the terminals.
Check the drive system of the developer unit, or
clean the sleeve surface.
Check each drive system.
Check the leakage and circuit.
Replace the high-voltage transformer if it is defec-
tive.
(10) White banding (at right angle with the feeding direction)
Feeding direction