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LS
User Check
(1) Check the environment. High or low temperature/humidity may
cause the problem.
(2) Replace developing unit.
(3) Replace the toner cartridge.
(4) Replace drum unit.
Too Dark(Gray background)
Step
Cause
Solution
Replace drum unit and toner cartridge.
1
Use wrong toner cartridge
(wrong model, or not from
original manufacturer.)
2
Drum unit near end of life.
Replace the toner cartridge.
3
Power Supply Board defective
(GRID voltage too low)
Replace high-voltage board.
User Check
(1) Replace the toner cartridge.
Color fades downwards
Step
Cause
Solution
1
Toner cartridge near end of life
Replace the toner cartridge.
User Check
(1) Check the environment. High or low temperature/humidity may
cause the problem.
(2) Replace the toner cartridge.
(3) Replace drum unit.
LS LS LS
Ghost (1)
Step
Cause
Solution
1
Dirt or scratch on fuser.
Replace fuser.
2
Drum unit near end of life
Replace drum unit.
3
Poor contact of toner cartridge Replace the toner cartridge.
4
Power Supply Board
malfunctioned.
Replace the Power Supply Board.
Confidential
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