HP Color LaserJet 2550 Printer series - Manual (Page 114)

Solving print-media problems
For best results, make sure that the paper is of good quality, and free of cuts, nicks, tears,
spots, loose particles, dust, wrinkles, voids, and curled or bent edges.
For best-quality color printing, use a smooth type of paper. Generally, the smoother the
paper, the better the results, although coated and photo papers are not supported. For more
information, see
Print-media specifications .
If you are unsure what type of paper you are loading (such as bond or recycled), check the
label on the package of paper.
The following problems with paper cause print quality deviations, jamming, or even damage
to the printer.
Symptom Problem with paper Solution
Poor print quality or toner adhesion The paper is too moist, too rough, too
heavy or too smooth, or it is embossed
or from a faulty paper lot. Try another kind of paper, between
100 and 250 Sheffield, 4 to 6 percent
moisture content.
Dropouts, jamming, curl The paper has been stored improperly. Store paper flat in its moisture-proof
wrapping.
The paper has variability from one side
to the other. Turn the paper over.
Excessive curl The paper is too moist, has the wrong
grain direction, or is of short-grain
construction Open the rear output bin, or use long-
grain paper.
The paper varies from side-to-side. Turn the paper over.
Jamming, damage to printer The paper has cutouts or perforations. Use paper that is free of cutouts or
perforations.
Problems with feeding The paper has ragged edges. Use high-quality paper that is made for
laser printers.
The paper has variations from one side
to the other. Turn the paper over.
The paper is too moist, too rough, too
heavy or too smooth, has the wrong
grain direction, or is of short-grain
construction or it is embossed or from
a faulty paper lot. Try another kind of paper, between
100 and 250 Sheffield, 4 to 6 percent
moisture content.
Open the rear output bin, or use long-
grain paper.
● Do not use letterhead paper that is printed with low-temperature inks, such as those
used in some types of thermography.
● Do not use raised or embossed letterhead.
● The printer uses heat and pressure to fuse toner to the paper. Make sure that any
colored paper or preprinted forms use inks that are compatible with this fusing
temperature (210° C or 410° F for 0.1 second).
CAUTION Failure to follow these guidelines could cause jams or damage to the printer.
104 Chapter 7 Problem solving ENWW