Samsung SCX 6322DN - B/W Laser - All-in-One Service Manual page 90

Dark Image
Digital Printer
Digital Printer
NO
The power of LSU is set
high or internal problem
-> Replace LSU or adjust
volume
Samsung Electronics
Dark selected
via RCP?
YES
Change to
Normal and test
NO
Same at Normal?
YES
Works correctly
NO
with -450V of Bias
voltage?
YES
Works
NO
correctly after
replaced LSU?
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
Troubleshooting
Service Manual
6-13