
e-STUDIO3511/4511 TROUBLESHOOTING
5 - 120
November 2003 © TOSHIBA TEC
(12) White banding (at right angles to feeding direction)
Feeding direction
Cause/Section
Main charger
Drum
Discharge lamp
Developer unit
Drive systems
High-voltage
transformer
(main charger wire/
grid, 1st/2nd transfer
roller and developer
bias)
Step
1
2
3
4
5
6
7
8
9
Check items
Is there foreign matter on the charger?
Is the terminal contact poor?
Is there any abnormalities on the drum
surface?
Is the drum grounded?
Is the discharge lamp lighting properly?
Is the developer sleeve rotating cor-
rectly? Is there any abnormalities on the
sleeve surface?
Is the connection of developer bias
supply terminal normal?
Is the drum, scanner or transfer belt
jittery?
Is the high-voltage transformer output
defective?
Measures
Remove foreign matter.
Clean or adjust the terminals.
Replace the drum.
Check the contact of the grounding
plate.
Replace the discharge lamp or clean
terminals.
Check the developer drive system, or
clean the sleeve surface.
Correct it.
Check each drive system.
Check/correct any electric leakage and
related circuits.
If the high-voltage transformer does not
work, replace it.
Fig. 5-213
Summary of Contents for e-STUDIO3511
Page 2: ... 2003 TOSHIBA TEC CORPORATION All rights reserved ...
Page 10: ...e STUDIO3511 4511 CONTENTS vi November 2003 TOSHIBA TEC ...
Page 12: ......
Page 20: ...e STUDIO3511 4511 SPECIFICATIONS 1 8 November 2003 TOSHIBA TEC ...
Page 190: ...e STUDIO3511 4511 ERROR CODE AND SELF DIAGNOSTIC MODE 2 170 November 2003 TOSHIBA TEC ...
Page 456: ...e STUDIO3511 4511 TROUBLESHOOTING 5 142 November 2003 TOSHIBA TEC ...
Page 518: ...e STUDIO3511 4511 FIRMWARE UPDATING 6 62 November 2003 TOSHIBA TEC ...
Page 546: ...e STUDIO3511 4511 REMOTE SERVICE 8 24 November 2003 TOSHIBA TEC 7 ...
Page 548: ...e STUDIO3511 4511 WIRE HARNESS CONNECTION DIAGRAMS 9 2 November 2003 TOSHIBA TEC ...
Page 551: ......
Page 552: ...2 17 2 HIGASHIGOTANDA SHINAGAWA KU TOKYO 141 8664 JAPAN ...