Table of Contents
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13. White Band - White banding line appears in the horizontal direction, and consequently causes a missing
image.
Main Causes
1.
Installation failure of the transfer unit, and deformation of the transfer roller.
2.
Contact failure of the transfer roller's bias pole.
3.
Transfer Roller Cam Clutch failure.
Countermeasures
1.
Confirm that the transfer unit is properly locked into place; BOTH sides of the transfer unit are
secured by a hook.
2.
Confirm if the transfer unit is properly installed or not.
3.
Replace the transfer roller cam clutch with a new clutch. (See Chapter 7)
4.
Replace the transfer unit with a new unit. (See Chapter 7)
226
SuperScript 4400 — Maintenance Guide
Fusing Unit
Transfer Unit
Paper Discharger
Unit
Transfer Roller
Transfer Drum
Paper Feeding
Roller
Drum Cleaner
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