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Fading in patches
The paper is moist.
► Replace the paper with dry paper. Be sure to store paper within specified temperature
and humidity levels.
Vertical black stripes.
The black image drum is damaged.
► Replace the black image drum.
The black toner is low.
► Replace the black toner cartridge.
Periodic horizontal lines or spots.
If the lines or spots occur at intervals of approximately 3¾ inches (95 mm), the image drum is
damaged or dirty.
► Remove the drum which corresponds to the color of the lines/spots and carefully wipe the
shiny green drum surface with a soft, lint-free tissue. If this doesn't work, replace the
image drum.
If the lines or spots occur at intervals of approximately 35 mm, there is foreign matter inside
the image drum cartridge.
► Replace the image drum which corresponds to the color of the lines/spots.
If the lines or spots occur at intervals of approximately 3½ inches (88 mm), the fuser roller is
damaged.
► Change the fuser unit.
The image drum has been exposed to light.
► Remove the image drum corresponding to the color of the lines/spots from the printer and
store it in a dark place for several hours. If this does not work, replace the image drum.
Faint shading on unprinted sections.
Paper has been affected by static electricity.
► Replace with fresh paper. Raise the humidity level in the area of the printer. Be sure to
store paper within specified temperature and humidity levels.
The paper is too thick.
► Use recommended paper.
Toner is low.
► Change toner cartridge.
Blurred letter edges.
LED is dirty.
► Clean the LED heads with the lens cleaner pad (one is supplied with the printer, one is
supplied with each replacement toner cartridge) or a soft, lint-free cloth moistened with
rubbing alcohol.
Cannot print desired color because toner is low.
► Replace the toner cartridge.
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