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White Spots
User Check
(1) Check if the paper path is dirty. If so, remove dirt.
(2) Refer to <Cleaning Method of the Drum Unit>,use a cotton swab to
clear the dust on the drum unit.
(3) Replace the drum unit.
(4) Replace the fuser.
Step
Cause
Solution
1
There is dirt or scratch on the fuser.
Replace the fuser.
2
There is dirt or scratch on the drum unit. Replace the drum.
Important:
Periodic image defects may be caused by defects of various rollers. Please refer to the table
below to determine the cause of the defect based on the diameter of various rollers or the
spacing in the image.
Refer to < The Spacing of Various Rollers in the Image >Table
<The Spacing of Various Rollers in the Image >
Component name
Spacing in the Image
Developing Roller(DR)
33mm
Drum Unit(OPC)
75mm
Heating Roller(HR)
63.5mm
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Black Spots
User Check
(1) There is dirt on the paper path. Wipe off the dirt.
(2) Refer to <Cleaning Method of the Drum Unit>,use a cotton swab to clear the
dust on the drum unit.
Step
Cause
Solution
1
Toner cartridge near end of life. Replace the toner cartridge.
Refer to < The Spacing of Various Rollers in the Image >Table
<The Spacing of Various Rollers in the Image >
Component name
Spacing in the Image
Developing Roller(DR)
33mm
Drum Unit(OPC)
75mm
Heating Roller(HR)
63.5mm
Confidential
30