Troubleshooting > 71
P
RINT
QUALITY
PROBLEMS
Before consulting a service representative regarding a print quality problem, check the
table below to see if there is a solution, or something you might have overlooked.
SYMPTOM
PROBLEM
SOLUTION
Blank sheets printed.
Image drum cartridge
not properly installed.
Reinstall image drum cartridge.
Empty toner cartridge.
Replace with a new EP toner cartridge.
Entire page prints
faintly.
Empty toner cartridge.
Pages get fainter when
toner is used up.
Replace with a new EP toner cartridge.
LED array is dirty.
Clean LED array.
Page has grey
background.
Static electricity,
generally from dry
environments, causes
toner to stick to
background.
Change paper to a smoother laser bond or
use a humidifier.
Page prints all black.
Hardware problem.
Contact service.
Oblong area of faint
print appears on
each page.
Drop out caused by
using paper exposed to
high humidity.
Change paper stocks, check paper storage
environment or use a dehumidifier; check
toner level.
Vertical white
streaking or faint
areas on page.
Toner is low and does
not distribute properly,
or the drum is worn out.
Replace with a new EP toner cartridge.
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.
Faded print.
Toner low.
Replace with a new EP toner cartridge.
Smeared or blotched
print.
Dirty rollers; toner
dropped inside printer or
image drum problem.
Replace with a new EP toner cartridge.
Contact service.
Printed page is light/
blurred.
Is toner low?
Replace with a new EP 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.
Replace with a new EP 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%.
