Service manual

Alignment and Troubleshooting
4-52
Service Manual
White Spot
Is it regular
interval of 94.3mm?
Obstacles stuck on OPC's
surface
-> Clean the OPC and
machine or replace
toner cartridge
When putting in/out the
drum cartridge , scratch is made
-> Replace the
drum cartridge
Transfer
voltage is normal?
D/R in the
toner cartridge
unit has the defect
-> Replace the
toner cartridge
Too high voltage supplied
due to the setting error of
transfer voltage
-> Adjust/replace HVPS
NO
NO
YES
YES
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer