Dell C5765dn User Manual page 517

Symptom
Part of the image Is the paper damp?
is missing on the
copy.
Is folded or wrinkled paper
included in the tray?
Is the document pasted or
folded?
The copy has a Is the enlargement ratio too
stripe pattern. large?
Color shift of Is the color calibration
color copies is incorrect?
poor, resulting in
Is the machine set where it is
unsatisfactory
exposed to direct sunlight?
image quality.
Printing is faint. The paper is damp.
(smudged,
unclear)
The drum cartridge has
deteriorated or is damaged.
There is no toner left in the
toner cartridge.
Black dots are The drum cartridge has
printed. deteriorated or is damaged.
Cause
If the paper is damp, the copy image may be
partially missing or unclear. Replace the paper
with new one.
Refer to "Loading Paper" (P.207).
Remove the unsuitable paper or replace all of
the paper with new one.
Refer to "Loading Paper" (P.207).
The pasted or folded section may not be
laying flat on the document glass. Place a
stack of white sheets on top of the document
to flatten the document against the
document glass.
Vertical stripes may be printed on the copies
depending on the ratio. Adjust the ratio to
eliminate the stripes.
Refer to "Reduce / Enlarge (Making Enlarged/
Reduced Copies)" (P.60).
Execute auto calibration.
Refer to "Executing Calibration" (P.248).
If the document glass is exposed to strong
light when you turn the machine on or cancel
the Power Saver mode, color shift may occur.
Close the document cover and turn the
machine on, and when the machine becomes
ready to copy or print, turn the machine off
and then on one more time.
Replace the paper with new one.
Refer to "Loading Paper" (P.207).
Replace the drum cartridge with a new one.
Refer to "Replacing Drum Cartridges C, M,
Y, or K" (P.223).
Replace the toner cartridge with a new one.
Refer to "Replacing Toner Cartridges"
(P.219).
Replace the drum cartridge with a new one.
Refer to "Replacing Drum Cartridges C, M,
Y, or K" (P.223).
Image Quality Trouble
Remedy
517