HP LaserJet 1100 - Page 124

EN Troubleshooting/Maintenance
: Image formation troubleshooting
124
Stains or
smudges appear
as small, round,
black dots on the
front or back of a
page.
Sometimes
inconsistent
stains appear.
The paper you are using does not meet
HP’s paper specifications (for example, it
is too moist or too rough).
Make sure that the media meets
specifications detailed in HP’s media
specifications guide.
You are printing on the wrong side of the
paper.
Remove the paper from the paper input
bin and turn it over. (The wrapper on many
reams of paper has an arrow indicating
the print side.)
The HP LaserJet 1100 needs to be
cleaned.
See "Cleaning procedures" in this chapter
for instructions on cleaning the product
and using a cleaning page.
The toner cartridge is damaged. Replace the toner cartridge if
maintenance procedures do not improve
print quality.
Vertically-
aligned black
streaks or
smears appear
on successive
pages.
The HP LaserJet 1100 needs to be
cleaned.
See "Cleaning procedures" in this chapter.
The toner cartridge is damaged. Replace the toner cartridge if
maintenance procedures do not improve
print quality.
There is a problem in the heating element. Perform the “Heating element check,”
which is discussed later in this chapter.
If scanned images have unwanted lines through them:
There is ink, glue, white-out, or some
other substance on the contact image
sensor.
See "Cleaning procedures" in this chapter.
Slick paper caused the document scanner
trouble in scanning.
Use a carrier sheet to send the item.
The HP LaserJet 1100 needs to be
recalibrated.
Recalibrate the product.
Problem Cause Solution