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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
stripe pattern.
large?
Symptom
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 spots
The drum cartridge has
appear.
deteriorated or is damaged.
Black lines
The drum cartridge has
appear.
deteriorated or is damaged.
The document glass on the
document feeder is dirty.
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.238).
Remove the improper paper or replace
whole paper with new one.
Refer to "Loading Paper" (P.238).
There may be a gap between the
document glass and the pasted or folded
section. Place a stack of white sheets on
the document to remove the gap between
the document and the document glass.
Output may have vertical stripes
depending on the ratio. Adjust the ratio to
remove the stripes.
Refer to "Reduce/Enlarge (Making Enlarged/
Reduced Copies)" (P.55).
Cause
Replace the paper with new one.
Refer to "Loading Paper" (P.238).
Replace the drum cartridge with a new one.
Refer to "Replacing the Drum Cartridge"
(P.428).
Replace the toner cartridge with a new one.
Refer to "Replacing the Toner Cartridge"
(P.427).
Replace the drum cartridge with a new one.
Refer to "Replacing the Drum Cartridge"
(P.428).
Replace the drum cartridge with a new one.
Refer to "Replacing the Drum Cartridge"
(P.428).
Clean the document glass.
Refer to "Cleaning the Film and Constant
Velocity Transport Glass" (P.440).
Image Quality Trouble
Remedy
Remedy
451
16
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