Troubleshooting
4-15
Samsung Electronics
Replace the developer
NO
YES
YES
END
YES
YES
NO
NO
NO
YES
YES
NO
Replace the HVPS
Ok after setting to the
normal mode?
YES
NO
Remove the obstacles
NO
YES
Clean transfer roller
and gear holder
YES
NO
Replace the LSU
Replace the developer
Is it not over
the guaranty life of dot
counter?
Is the toner save
mode or the light mode
is selected?
Is the high voltage
normal? (charging,
developing,
transfer)
Any obstacles on the
gab between high voltage
terminal and
developer?
Transfer roller
works OK?
OK after replacing
LSU?
HVPS works OK?
Light image