Troubleshooting for Image Quality Problems
SM 6-133 D0CA/D0C9/D0C8/D0CB
Interval
(pitch)
Target part Replacement part Roller R
(phi)
749.9mm Fusing sleeve belt
Pressure roller
Image transfer belt
PCDU (Photo Conductor and
Development Unit) (CMY)
PCDU (Photo Conductor and
Development Unit)
Fusing Sleeve Belt Assembly, or Fusing
Unit
Pressure Roller, or Fusing Unit
ITB (Image Transfer Belt) Unit
6.12.2 ONLY BLACK IS NOT PRINTED
Black cannot be printed.
[A]: Normal
[B]: Problem evident
The ITB contact/release lever is not set to the proper position.
• If the ITB contact/release lever is not set to the proper position, by setting the waste
toner bottle all the way, the lever is automatically set to the proper position. However, it
may be possible to close the front cover without inserting the waste toner bottle all the
way through. If it is, black cannot be printed because the image transfer belt and drum
are separated.
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