Toshiba e-STUDIO520 Service Handbook page 511

19)Jittering image
Defective area
-
Registration roller
Fuser roller and pressure
roller
Drum
Operation of carriage
Scanner
Drum drive system
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Fig. 5-19
Step Check items
1 Is the toner image on the drum nor-
mal?
2 Is the registration roller rotating nor-
mally?
3 Are the fuser roller and pressure
roller rotating normally?
4 Is there a big scratch on the drum?
5 Is there any problem with the slide
sheet?
6 Is there any problem with the car-
riage foot?
7 Is the tension of the timing belt nor-
mal?
8 Is there any problem with the drive
system of the carriage?
9 Is the mirror secured?
10 Is there any problem with the drive
system of the drum?
5 - 149
Prescription
If normal, perform steps 2 to 4. Per-
form step 5 and followings in case
the image is abnormal.
Check the registration roller area and
springs for installation condition.
Check the fuser roller area.
Replace the rollers if necessary.
Replace the drum.
Replace the slide sheet.
Replace the carriage foot.
Adjust the tension.
Check the drive system of the car-
riage.
Secure it.
Check the drive system of the drum.
Clean or replace the gears if they
have stains or scratches.
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
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