Dell C5765dn User Manual page 520

22 Problem Solving
Symptom
Text is blurred.
White or color
patches appear
vertically.
Paper feed
direction
Text or images are
printed at an
angle.
520
Cause
The paper is unsuitable.
Paper has been added to the
paper loaded.
The paper is damp.
The drum cartridge has
deteriorated or is damaged.
No toner remains in the toner
cartridge.
The machine interior (laser
scanners) may be soiled.
The paper guides in the paper
tray are not set in the correct
positions.
Remedy
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).
Clean the interior.
Refer to "Cleaning the Interior (Laser
Scanners)" (P.240).
Adjust the horizontal and vertical paper
guides to the correct positions.
Refer to "Loading Paper" (P.207).