Dell 2355DN Service Manual page 86

Dark Image
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
NO
Dark selected
via RCP?
Change to
Normal and test
Same at Normal?
Works correctly
with -450V of Bias
voltage?
correctly after
replaced LSU?
The power of LSU is set
high or internal problem
-> Replace LSU or adjust
volume
Service Manual
Alignment and Troubleshooting
YES
NO
YES
NO
YES
Works
NO
YES
END
Repair or replace the defective
component
Toner over supply due to the
adjustment fault of metering
blade in toner cartridge
-> Replace toner cartridge
4-46