HP LaserJet 3100 All-in-One Printer series - Manual (Page 220)

EN 9 Troubleshooting and Maintenance 219
Characters are
only partially
printed (also
referred to as
dropouts). A single sheet of paper may be defective.
The print density may need adjusting.
The moisture content of the paper may be
inconsistent or the paper may have moist
or wet spots on the surface.
The paper may have been damaged by
inconsistent manufacturing processes.
Try reprinting the job.
Adjust the print density from the front
panel.
Use paper from a fresh ream or a different
source. To order HP’s paper specification
guide, see “Ordering parts” in this chapter.
Try using paper from a different supplier.
To order HP’s paper specification guide,
see “Ordering parts” in this chapter.
The bottom of the
printed page is
blank or part of a
graphic’s image is
cut off. The page may be too complex. (There is
not enough memory to process the page.) Set the resolution to 300 dpi through your
software or printer driver. See the online
help for printer driver issues.
Blank pages print
occasionally. Page length and margins are not set
correctly for the paper size.
Your HP LaserJet 3100 product may be
feeding two or more sheets of paper at a
time because the paper is difficult to
separate.
Your software application may be sending
an extra page-eject command.
If you are printing on small paper and your
page is blank, try printing on larger paper
to see where the image is printing. Adjust
the margins accordingly.
Remove the paper from the paper input
bin and align the edges of the paper.
“Break” the ream of paper by curving it
into an upside-down u-shape; this may
decrease multifeeds. Try turning the
paper around to feed the other end first.
Check your software’s printing
configuration information. If you are using
a word-processing program, check for a
natural page break and a forced page
break that are close to each other.
Problem Cause Solution