Symptom; Possible Cause; Countermeasures; Insufficient Fusing - Ricoh G157 Service Manual

4.4.23 INSUFFICIENT FUSING

Symptom

Parts of the image printed images are
partially missing.

Possible Cause

1) The tension lever on the fusing unit is
not locked.
2) Inappropriate paper is used.

Countermeasures

1) Check that the tension lever is locked.
2) Check that paper type settings are
correct.
3) Use the recommended paper.
4) Replace the defective fusing unit.

4.4.24 UNEVEN DENSITY BETWEEN LEFT AND RIGHT SIDES

Symptom
The image density on one side of the paper is different from the image density on
the other side.
Possible Cause
1) The quantity of toner in the development unit is not sufficient.
2) The retraction mechanism of the development unit does not operate
correctly.
3) The doctor blade in the development unit is damaged.
4) The transfer belt is damaged.
5) The transfer roller unit is not correctly installed.
6) The rear cover is damaged.
7) The rear cover is not correctly locked.
8) The dustproof glass of the optics unit is stained.
Countermeasures
1) Replace the development unit.
2) Check the spring clutch.
3) Replace the OPC belt unit.
4) Check that the transfer roller unit is correctly installed.
5) Replace the transfer roller unit.
6) Check that the rear cover is correctly locked.
7) Replace the) rear cover.
8) Clean the dustproof glass of the optics unit.
9) Replace the optics unit.
SM 4-35
IMAGE QUALITY
G157T923.TIFF
G157