June 2005 © TOSHIBA TEC e-STUDIO281c/351c/451c TROUBLESHOOTING
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Transfer belt 8 Is the belt tension of the driving unit
normal?
Adjust the tension of the
transfer belt.
Check the halftone
pattern.
(Uneven pitch:
approx. 2.5 mm)
9 Deformation or damage of the trans-
fer belt
Replace the transfer belt. Check the halftone
pattern.
(Uneven pitch:
approx. 75 mm)
10 Stain or damage of the drive roller Clean or replace the drive
roller.
Check the halftone
pattern.
(Uneven pitch:
approx. 75 mm)
11 Large driving load due to the peeling
of the cleaning blade
Replace the cleaning
blade.
Laser optical
unit
12 Check the halftone pattern to see if
there are uneven pitches of approx.
0.3 mm each in the whole image.
Replace the laser optical
unit.
Check the halftone
pattern.
(Uneven pitch:
approx. 0.3 mm)
Cause/Section Step Check Item Measure Remark