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Image Quality Problems
If the image quality of the printout is poor, use the table below to find our most likely
cause, and take the action required.
If the image quality remains poor after taking the required action, contact our Customer
Support Center.
Symptom
Copies are dirty.
Black lines
appear in copies.
Copies are too
dark.
Copies are too
light.
The copy is
slightly out of
position.
Possible Cause
Is the document glass or
the document cover
dirty?
Is the document a
transparent type such as
a transparency medium?
Is the document on
colored or rough paper,
or a blueprint?
Is the document on
glossy printing paper?
Is the document feeder's
narrow glass strip dirty?
Is the copy density set to
a high value?
Is the document light?
Is the copy density set to
a low value?
Is the paper loaded in
the correct position such
as the paper's leading
edge drifted away from
the corners of the tray?
Image Quality Problems
Remedy
Clean the document glass or the document
cover.
Refer to "Cleaning Document Cover and
Document Glass" (P.144).
When copying highly translucent documents,
dirt on the document cover shows up in the
copy. Place a sheet of white paper over the
document before copying.
Adjust the copy density or remove the
background paper color before copying.
Refer to "Lighten/Darken" (P.94).
Glossy printing paper easily sticks to the
document glass, and shadows can resemble
dirt in the copy. Place a transparency or
transparent film under the document before
copying.
Clean the narrow glass strip.
Refer to "Cleaning Document Presser and Narrow
Glass Strip" (P.145).
Adjust the copy density.
Refer to "Lighten/Darken" (P.94).
Load paper correctly, and align the paper
guides to the paper.
Refer to "Loading Paper in Trays 1 and 2
(Optional)" (P.75).
Refer to "Loading Paper in Bypass Tray" (P.76).
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