HP LaserJet Enterprise P3015 HP LaserJet Printer Family - Print Media Specific - Page 31

Reducing post-image curl, Troubleshooting - printer driver

Page 31 highlights

Reducing post-image curl When an HP LaserJet printer prints a sheet of paper, the sheet can develop a curvature that is called post-image curl. Generally, the higher the moisture content of the paper, the greater the curl. Both the paper and the printer affect the amount of post-image curl. In the papermaking process, stresses that can cause curl are a result of the paper manufacturing process, so different papers will have differing amounts of post-image curl. In the printing process, the paper is subjected to the heat and pressure of the fuser as well as to the contours of the paper path. Cause Action(s) Paper is too moist, resulting in waviness or q Print to the another output bin, for example, the curl. face-up output bin. (This option is not available with some printers.) q Change to a different type or brand of paper. q You might need to acclimate the paper to your environment to diminish differences in heat and moisture. (See "Preparing print media for use" on page 4.) q Follow the storage and handling specifications in this document. (See "Shipping and storing print media" on page 19.) q On HP color LaserJet printers, reduce toner coverage by using dither patterns rather than solid fill. Paper orientation (direction in which the paper is fed into the printer) is incorrect, resulting in excessive curl. q Turn the paper stack over or turn it around in the input tray to reverse the direction of the paper. q The grain of the paper can affect the curl of the paper. Therefore, if you are feeding the paper in landscape mode (horizontally) and are experiencing curl, try feeding the paper in portrait mode (vertically), if possible. Fuser mode is set improperly in the printer q driver for the paper that is being used. If possible, set the fuser mode to a lower setting. For more information about setting the fuser mode, see the support documentation that came with your printer. Chapter 3 Troubleshooting 25

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Chapter 3 Troubleshooting
25
Reducing post-image curl
When an HP LaserJet printer prints a sheet of paper, the sheet can develop a curvature
that is called post-image curl. Generally, the higher the moisture content of the paper, the
greater the curl.
Both the paper and the printer affect the amount of post-image curl. In the papermaking
process, stresses that can cause curl are a result of the paper manufacturing process, so
different papers will have differing amounts of post-image curl. In the printing process, the
paper is subjected to the heat and pressure of the fuser as well as to the contours of the
paper path.
Cause
Action(s)
Paper is too moist, resulting in waviness or
curl.
Print to the another output bin, for example, the
face-up output bin. (This option is not available
with some printers.)
Change to a different type or brand of paper.
You might need to acclimate the paper to your
environment to diminish differences in heat and
moisture. (See
“Preparing print media for use”
on page 4
.)
Follow the storage and handling specifications in
this document. (See
“Shipping and storing print
media” on page 19
.)
On HP color LaserJet printers, reduce toner
coverage by using dither patterns rather than solid
fill.
Paper orientation (direction in which the
paper is fed into the printer) is incorrect,
resulting in excessive curl.
Turn the paper stack over or turn it around in the
input tray to reverse the direction of the paper.
The grain of the paper can affect the curl of the
paper. Therefore, if you are feeding the paper in
landscape mode (horizontally) and are
experiencing curl, try feeding the paper in portrait
mode (vertically), if possible.
Fuser mode is set improperly in the printer
driver for the paper that is being used.
If possible, set the fuser mode to a lower setting.
For more information about setting the fuser mode,
see the support documentation that came with
your printer.