Missing Cmy Color; Light Print; Repeated Spots Or Lines On Prints - Ricoh M022 Service Manual

6. Troubleshooting

Missing CMY Color

Symptom
C, M, or Y is missing.

Light Print

6
Symptom
Printed images are too weak.

Repeated Spots or Lines on Prints

The same spots or lines appear at regular intervals.
718
CÓPIA NÃO CONTROLADA
Possible cause
Defective PCDU
Loose connection between
printer cartridge and BCU
Image transfer belt not
contacting PCDU
Defective the drum motor: CMY
Defective BCU
Possible cause
Loose connection between
paper transfer roller and HVPS
Dust in the laser beam path
Image transfer belt not
contacting PCDU
Defective PCDU
Defective paper transfer roller
Defective fusing unit
Defective BCU
CÓPIA NÃO CONTROLADA
Necessary actions
Replace the PCDU.
Replace the drum positioning
cover.
Check the belt tension unit.
Replace the drum motor: CMY.
Replace the BCU.
Necessary actions
Check the connection between
the paper transfer roller and the
HVPS.
Clean the laser beam path.
Check the image transfer belt
unit.
Replace the PCDU.
Repair the paper transfer roller.
Replace the fusing unit.
Replace the BCU.