C4170-90959
Image Formation Troubleshooting
119
Dirty or deformed
Transfer Roller.
Replace the Transfer Roller.
Empty or defective
Toner Cartridge.
Replace the Toner Cartridge.
See also “Dropouts” (page 122).
Character Voids
Class 1: Small sections of characters are missing toner.
Class 2: Small sections of thin vertical lines are missing.
Possible Cause Action
Paper surface too
rough. Toner migrates
to low spots, leaving
higher areas void.
Use paper with correct finish (smoothness) meeting
HP specifications. See “Media Troubleshooting”
(page 134).
Printing on wrong side
of paper. The label on
the ream of paper
indicates which side
to print on. The
different surface
properties of some
papers may cause
problems if loaded
wrong side up.
Check for the arrow on the paper wrapper. Be sure
paper is loaded with the arrow pointing down in the
paper trays, or arrow pointing up in Tray 1. If the
paper does not have an arrow, try flipping the paper
over and printing on the other side. (Some paper has
a top, or "felt," side and a bottom, or "wire," side.
Depending on the paper, one side may be the
preferred side on which to print. Flipping the paper in
the tray may solve the printing problem by reversing
the felt and wire sides of the paper.)
High moisture in
paper.
User paper that meets HP specifications. See
“Media Troubleshooting” (page 134).
Paper surface too
smooth for proper
toner adhesion.
User paper with correct finish (smoothness) meeting
HP specifications. See “Media Troubleshooting”
(page 134).
Bad transparencies.
Transparencies can
have this problem
because they are not
designed for proper
toner adhesion.
Try another brand of transparency.
Bad Transfer Roller. If
the Transfer Roller
has finger oils on its
surface, is dirty or
worn out, this problem
can result.
Clean the Transfer Roller using a dry, lint-free cloth.
DO NOT touch the Transfer Roller with bare skin. If
the problem persists, replace the Transfer Roller
Assembly.
Blank Spots
Possible Cause Action
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