Causes
Print density setting.
soluitons
The print density may be set too high. Try adjusting the print
density. For details refer to the printer's operation guide.
Causes
Defective drum surface potential.
soluitons
If a drum unit which is known to work normally is available for
check, replace the current drum unit in the printer with the normal one. If the symptom disappears, replace the drum unit with a new one
Causes
Defective main charger unit.
soluitons
Replace the main charger unit
Causes
Defective developing roller (developer
unit).
soluitons
If a developer unit which is known to work normally is available for check, replace the current developer unit in the printer with the normal one. If the symptom disappears, replace the developern unit with a new one
check ifyou want service maual you can send mail to
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