Текст страницы
User Check
(1) Clean the corona wire on the drum unit.
(2) This problem will disappear after printing for a few pages.
(3) Wipe off the dirt on the drum unit with a cotton swab, refer to
<Cleaning Method of the Drum Unit>
(4) Replace the drum unit.
■ Black Horizontal Lines
Step
Cause
Solution
1
Scratches or dirt on the fuser.
Replace the fuser.
Replace the Power Supply Board.
2
Scratches or dirt on the drum unit.
Replace the drum unit or clean the surface of
the drum unit.
3
Power Supply Board
malfunctioned(charger and grid
output not stable)
User Check
(1) Clean the corona wire on the drum unit.
(2) Slide the corona wire back to the position marked "▲".
(3) This problem will disappear after printing for a few pages.
(4) Wipe off the dirt on the drum unit with a cotton swab, refer to
<Cleaning Method of the Drum Unit>.
(5) Replace the drum unit.
(6) Clean the paper path.
■ Black Strape
Step
Cause
Solution
1
Dirt on the charger.
Clean the drum unit.
2
Drum unit deformed.
Replace the drum unit.
3
Developing unit bad scraper
Replace the toner cartridge.
4
Toner remains on the paper path.
Clean the paper path.
User Check
(1) Clean the corona wire on the drum unit.
(2) Slide the corona wire back to the position marked "▲".
(3) This problem will disappear after printing for a few
pages.
(4) Wipe off the dirt on the drum unit with a cotton swab,
refer to <Cleaning Method of the Drum Unit>.
(5) Replace the drum unit.
Horizontal lines
Step
Cause
Solution
1
Dirt on the charger.
Clean the drum unit.
2
Poor discharge of charger
Replace the drum unit.
3
Poor grounding of the drum
unit.
Replace the drum unit.
Confidential
34