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Chapter XII Troubleshooting
1. Poor image quality
Phenomenon
Reason
Solution
White line on printing
Dirty spot on the LED print head
LED print head damage
1.
Cleaning LED print head,
2.
Replacing cleaning stick.
3.
Replace LED print head
Note: For C/M/Y/K, handle the
color with white line only.
Improper material type selected.
The fuser unit is worn or damaged.
1.
Change material type
2.
Change material
3.
Replace fuser unit
Improper material type selected.
The voltage setting is incorrect
1. Change material type
2. Adjust the transfer voltage on the
control panel.
Refer to the instructions of
material setting on P48
Improper material type selected.
1. Change material type
2. Change material
3. The fuser unit is worn or
damaged.
The color distribution is not uniform
Toner cartridge worn out
Powder feeding of two sides of the
developer unit is not uniform
The developer unit ages
1.
Replace toner cartridge
2.
Adjust the side clearance of the
developer unit
3.
Replace developer or developer
unit
Note: For C/M/Y/K, handle the
color with such phenomenon
only.
Regular ink spots
Dirty spots of toner cartridge, belt
or fuser unit
The perimeter of toner core is
94.2mm
The charging roller on the toner
cartridge is 37.68mm
The perimeter of the belt is
872.47mm
Transfer unit roller 80.71mm
Secondary transfer roller 54.01mm
1.
Clean toner cartridge, belt or
fuser
2.
Replace toner cartridge, belt or
fuser
Note: For C/M/Y/K, handle the
toner cartridge with such
phenomenon only.
(Please refer to the component
length determination)