Image Quality Trouble - Dell C5765dn User Manual

22 Problem Solving

Image Quality Trouble

If the image quality of printed documents is poor, identify the symptom in the following
table to perform the remedy.
If image quality does not improve even after performing the remedy, contact Customer
Support at dell.com/contactdell.
Symptom
The copy is dirty.
The copy has
black lines.
The copy is too
dark.
The copy is too
light.
The copy is
slightly
misaligned.
The copy is
misaligned or
skewed.
516
Cause
Is the document glass or the
document cover dirty?
Is the document a transparent
type such as a transparency
film?
Is the document colored,
rough, or a blueprint?
Is the document glossy
printing paper?
Is the constant velocity
transport glass on the
document feeder dirty?
Is the copy density set to
[Darken]?
Is the document faint?
Is the copy density set to
[Lighten]?
Are the paper edges aligned
and the leading edge adjusted
to the tray corners?
Is the document loaded
correctly?
Is the paper loaded correctly
in the tray?
Are the paper guides of Tray 5
correctly aligned to the paper?
Are the document guides on
the document feeder set in
the correct positions?
Is the paper tray inserted
correctly?
Remedy
Clean the document glass and the document
cover.
Refer to "Cleaning Document Cover and
Document Glass" (P.246).
If the document is transparent, dirt on the
document cover will be copied. Place a white
sheet of paper on top of the document when
copying.
Adjust the copy density or image quality.
Refer to "Image Quality" (P.76).
Glossy printing paper easily sticks to the
document glass, and shadows are sometimes
copied, soiling the image. Place a
transparency film under the document when
copying.
Clean the constant velocity transport glass.
Refer to "Cleaning the White Chute and
Constant Velocity Transport Glass" (P.246).
Adjust the copy density.
Refer to "Image Quality" (P.76).
Align the paper edges, adjust them to the
tray's top corners, and reload the paper.
Refer to "Loading Paper" (P.207).
Load the document correctly.
Refer to "Copying Procedure" (P.50).
Load the paper correctly.
Refer to "Loading Paper" (P.207).
Load the paper correctly and align the
document guides to the document edges.
Refer to "Loading Paper in Tray 5 (Bypass
Tray)" (P.211).
Load the document correctly, and align the
document guides to the document edges.
Refer to "Copying Procedure" (P.50).
Firmly push in the tray until it stops to insert
it properly.
Refer to "Loading Paper" (P.207).