Ricoh G-P3 - Dark Vertical Line on Prints

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
inches)
Defective belt entrance roller Replace the transfer belt unit.
At intervals of 41.1 mm (1.62
inches)
Defective belt transfer roller Replace the transfer belt unit.
At intervals of 47.1 mm (1.86
inches)
Defective toner mixing auger Replace the PCU.
At intervals of 56.5 mm (2.23
inches)
Defective development roller Replace the PCU
At intervals of 72.8 mm (2.87
inches)
Defective belt tension roller Replace the transfer belt unit.
At intervals of 82.2 mm (3.24
inches)
Defective transfer belt drive roller Replace the transfer belt unit.
At intervals of 82.5 mm (3.25
inches)
Defective transfer roller Replace the transfer roller.
At intervals of 94.2 mm (3.71
inches)
Defective OPC drum or pressure
roller
Replace the PCU or the fusing
unit
At intervals of 141.4 mm (5.57
inches)
Defective fusing belt Replace the fusing unit.
Dark Vertical Line on Prints
Symptom Possible cause Necessary actions
A dark line appears. The line is
parallel to the paper feed
direction of one CMY color.
Defective PCU Replace the PCU.
A dark line appears. The line is
parallel to the paper feed
Dust in the laser beam path Clean the laser beam path.
4. Troubleshooting
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