© 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO281c/351c/451c
TROUBLESHOOTING
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5
21)Image jittering
Fig. 5-21
Cause/Section Step Check items Measures
- 1 Is the toner image on the drum proper? If proper, perform step 1 to 3; otherwise
perform step 4 and after.
Registration
roller
2 Is the registration roller rotating normally? Check the registration roller section and
its springs.
Transfer unit 3 Is the transfer belt or 2nd transfer roller
operating normally?
Check the drive system and replace the
transfer belt or 2nd transfer roller if neces-
sary.
Fuser unit 4 Are the fuser roller and pressure roller
rotation proper?
Is the fuser belt transportation proper?
Check the drive system.
Replace the fuser belt, fuser roller and
pressure roller if necessary.
Drum 5 Is there large scratch on the drum? Replace the drum.
Scanner 6 Is the slide sheet defective? Replace it.
7 Are there any abnormalities on the car-
riage feet?
Replace the feet.
8 Is the tension of timing belt inappropriate? Correct the tension.
9 Is the carriage drive system malfunction-
ing?
Check the carriage drive system.
10 Are any mirrors loosely installed? Install them properly.
Drum drive sys-
tem
11 Is the drum drive system malfunctioning? Check the drum drive system.
Clean or replace the belts, pulleys, bush-
ings if they have dirt or scratches.
Feeding direction
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