Print Quality
10-15
Vertical blanks The laser is being blocked.
Remove the drum cartridges and clean all debris from the laser len(s) with a lint free
cloth.
â– Do not expose the drum cartridge to direct sunlight or strong light.
â– To protect the drum cartridge against bright light, close the front cover within 3
minutes. If the front cover remains open for more than 3 minutes, print quality
may deteriorate.
â– Make sure that nothing touches or scratches the surface (black-colored film) of
the belt unit. Scratches, dirt, or oil from your hands on the film of the belt unit may
reduce print quality.
The drum unit or fuser unit is old or damaged.
Check the condition of the drum unit and fuser unit, and replace as necessary.
â– Do not expose the drum cartridge to direct sunlight or strong light.
â– To protect the drum cartridge against bright light, close the front cover within 3
minutes. If the front cover remains open for more than 3 minutes, print quality
may deteriorate.
â– Make sure that nothing touches or scratches the surface (black-colored film) of
the belt unit. Scratches, dirt, or oil from your hands on the film of the belt unit may
reduce print quality.
The print cartridges are not genuine print cartridges.
â– Check the condition of the print cartridge, and replace as necessary.
â– Verify that the print cartridges (C/M/Y/K) are genuine cartridges, and replace if
necessary.
Slanted printing The paper guides in the Manual Feeder or Tray 1 is not set correctly.
Reset the paper guides in the Manual Feeder or Tray 1.
See Loading Paper in the Manual Feeder on page 5-9 and Loading Paper in Tray 1
on page 5-11.
Horizontal bands,
approximately 22 mm wide,
appear vertically every 73
mm
The drum cartridge has been exposed to too much light; possibly from leaving the
front door open too long.
Replace the drum cartridge.
Colors are blurry or there is
white area around objects
Color to color alignment is not correct
Use the automatic color calibration. See Color Calibration on page 10-17.
Symptom Reason/Action
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