HP LaserJet 3100 All-in-One Printer series - Manual (Page 219)

218 9 Troubleshooting and Maintenance EN
Vertical white
stripes appear on
the page. The scanning device may need to be
recalibrated.
The HP LaserJet 3100 product’s internal
mirror may be contaminated.
If you noticed the lines on a copy output
page or on a fax you sent to a recipient,
scan an item and see if similar lines
appear on the scanned image. (If the lines
were on the scanned image, make a copy
and check for the lines.) If similar lines
appear, see “Recalibrating the scanner” in
this chapter.
Contact the Customer Service Center for
service. See the front of this manual for
support information.
Character voids
appear (white
areas within the
parts of characters
that should be
solid black). The paper or transparencies may not
meet HP’s specifications.
You may be printing on the wrong surface
of the paper.
Order HP’s paper specification guide. See
“Ordering Parts” in this chapter.
Remove the paper and turn it around.
(The wrapper on many reams of paper
has an arrow indicating the print side.)
Background
scatter appears on
a printed page. Background scatter results from bits of
toner distributed on the front or back of a
printed page. Background scatter often is
isolated to a specific area of the page. Change the paper type, weight, or surface
finish. To order HP’s paper specification
guide, see “Ordering parts” in this chapter.
If background scatter occurs on an
envelope, try moving the text to an area
with no seams. Printing on seams can
cause this problem.
This problem may be caused by spilled
toner inside the HP LaserJet 3100 product
or the pick rollers being dirty. See
“Cleaning the print path” in this chapter.
The page is
completely black. The toner cartridge may not be installed
properly.
The toner cartridge may be defective and
need replacing.
The HP LaserJet 3100 product may need
to be repaired if the problem continues
after replacing the toner cartridge.
Remove the cartridge and reinstall it. See
“Installing the toner cartridge” in chapter 1.
The toner cartridge may still be under
warranty. See “Warranty information” in
appendix B.
See the support pages at the front of this
manual for support options.
Problem Cause Solution