Ricoh G104, Service Manual

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Troubleshooting Guide
SM 4-33 G160/G161
G160/G
161
Symptom Possible cause Necessary actions
board (EGB) Adjustment – Electrical
Components – Electrical Board
Unit’.)
Transfer belt not contacting
PCU
Check the belt tension unit.
Defective the color OPC
motor
Replace the color OPC motor.
Defective engine board (EGB)
Replace the engine board
(EGB).
4.3.4 LIGHT PRINT
Symptom Possible cause Necessary actions
Loose connection between
transfer roller and high
voltage supply unit
Check the connection
between the transfer roller
and the high voltage supply
unit.
Dust in the laser beam path Clean the laser beam path.
Transfer belt not contacting
PCU
Check the transfer unit.
Defective PCU Replace the PCU.
Defective transfer roller Repair the transfer roller.
Defective fusing unit Replace the fusing unit.
Printed images are too weak.
Defective engine board (EGB)
Replace the engine board
(EGB).
4.3.5 REPEATED SPOTS OR LINES ON PRINTS
The same spots or lines appear at regular intervals.
Interval Possible cause Necessary actions
At intervals of 35.0 mm (1.38
inches)
Defective charge roller Replace the PCU.
At intervals of 35.8 mm (1.41
inches)
Defective OPC cleaning brush
roller
Replace the PCU.
At intervals of 40.5 mm (1.59 Defective belt entrance roller Replace the transfer belt
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA