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February 2002 © TOSHIBA TEC 4 - 87 FC-210/310 TROUBLESHOOTING
If proper, perform step 1 to 3; otherwise per-
form step 4 and after.
Check the registration roller section and its
springs.
Check the drive system and replace the
transfer belt if necessary.
Check the drive system.
Replace the fuser belt, upper/lower heat
rollers and fuser roller if necessary.
Replace the drum.
Replace it.
Replace the feet.
Adjust the tension.
Check the carriage drive system.
Install them properly.
Check the drum drive system.
Clean or replace the belts, pulleys, bushings
if they have dirt or scratches.
Check the EPU.
Cause/Section
Step
Check items Measures
—
Registration roller
Transfer belt
Fuser unit
Drum
Carriage operation
Scanner
Drum drive system
Processing unit (EPU)
0 Is the toner image on the drum
proper?
1 Is the registration roller rotating
normally?
2 Is the transfer belt operating normally?
3 Are the upper/lower heat rollers and
fuser roller rotation proper?
Is the fuser belt transportation proper?
4 Is there large scratch on the drum?
5 Is the slider sheet defective?
6 Are there any abnormalities on the
carriage feet?
7 Is the tension of timing belt in-
appropriate?
8 Is the carriage drive system mal-
functioning?
9 Are any mirrors loosely installed?
10 Is the drum drive system mal-
functioning?
11 Is the EPU load too high?
(21) Image jittering
Feeding direction