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Vertical white
streaking or faint
areas on page.
Toner is low and does
not distribute properly,
or the drum is worn out.
Replace toner cartridge. Check drum and
replace the drum, if necessary. Contact
service.
LED array is dirty. Clean LED array.
Vertical black lines. Hardware problem. Contact service.
Fuzzy print. LED array is dirty. Clean LED array.
Distorted print. Paper path, lamp
assembly, or fusing unit
problem.
Generate cleaning page.
Contact service.
Faded print. Toner cartridge is not
correctly installed.
Toner low.
Install toner cartridge correctly.
Replace toner cartridge.
Smeared or blotched
print.
Dirty rollers; toner
dropped inside printer or
image drum problem.
Replace image drum and toner.
Contact service.
Printed page is light/
blurred.
Is toner low? Replace toner cartridge.
Is paper meant for laser
printers?
Use recommended paper.
LED array is dirty. Clean LED array.
Bold characters and
dark lines are
smeared.
Toner is low. Install new toner cartridge.
Print is darker than
usual.
Darkness setting is too
high.
Change darkness setting.
Pages curl
excessively.
Printing on wrong side
of paper.
Turn paper over in tray. (Note arrow on
paper package). Install paper print side
down in tray.
Moisture in paper.
Improper storage.
Avoid storing paper in areas of excessive
temperature and humidity. Store paper in
protective wrapping.
High humidity. Recommended operating humidity: 20-
80%.
SYMPTOM PROBLEM SOLUTION