Samsung Msys 6800 Service Manual page 43

Dark Image
NO
Samsung Electronics
Dark selected
via RCP?
YES
Change to
Normal and test
Same at Normal?
YES
Works cor
with -300V of Bias
voltage?
YES
Works
correctly after
replaced LSU?
YES
The power of LSU is set
high or internal problem
-> Replace LSU or adjust
voluem
NO
NO Repair or replace the defective
component
Toner over supply due to the
NO
adjustment fault of metering
blade in developer
-> Replace developer
Maintenance & Troubleshooting
END
4-13