Dark Vertical Line On Prints - Ricoh G-P3 Service Manual

4. Troubleshooting
Interval
At intervals of 35.0 mm (1.38
inches)
At intervals of 35.8 mm (1.41
inches)
At intervals of 40.5 mm (1.59
inches)
At intervals of 41.1 mm (1.62
inches)
4
At intervals of 47.1 mm (1.86
inches)
At intervals of 56.5 mm (2.23
inches)
At intervals of 72.8 mm (2.87
inches)
At intervals of 82.2 mm (3.24
inches)
At intervals of 82.5 mm (3.25
inches)
At intervals of 94.2 mm (3.71
inches)
At intervals of 141.4 mm (5.57
inches)

Dark Vertical Line on Prints

Symptom
A dark line appears. The line is
parallel to the paper feed
direction of one CMY color.
A dark line appears. The line is
parallel to the paper feed
126
Possible cause
Defective charge roller
Defective OPC cleaning brush
roller
Defective belt entrance roller
Defective belt transfer roller
Defective toner mixing auger
Defective development roller
Defective belt tension roller
Defective transfer belt drive roller
Defective transfer roller
Defective OPC drum or pressure
roller
Defective fusing belt
Possible cause
Defective PCU
Dust in the laser beam path
Necessary actions
Replace the PCU.
Replace the PCU.
Replace the transfer belt unit.
Replace the transfer belt unit.
Replace the PCU.
Replace the PCU
Replace the transfer belt unit.
Replace the transfer belt unit.
Replace the transfer roller.
Replace the PCU or the fusing
unit
Replace the fusing unit.
Necessary actions
Replace the PCU.
Clean the laser beam path.