Dell 2355DN Service Manual - Page 92

White Spot

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Alignment and Troubleshooting White Spot Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Is it regular NO interval of 94.3mm? YES Transfer NO voltage is normal? YES Too high voltage supplied due to the setting error of transfer voltage -> Adjust/replace HVPS 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 D/R in the toner cartridge unit has the defect -> Replace the toner cartridge 4-52 Service Manual

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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