HP LaserJet M4349 Multifunction Printer series - Manual (Page 81)

Media considerations
Envelopes
Envelope construction is critical. Envelope fold lines can vary considerably, not only between
manufacturers, but also within a box from the same manufacturer. Successful printing on envelopes
depends upon the quality of the envelopes. When selecting envelopes, consider the following
components:
● Weight: The weight of the envelope paper should not exceed 105g/m 2 (28lb) or jamming might
occur.
● Construction: Prior to printing, envelopes should lie flat with less than 6mm (0.25 inch) curl, and
should not contain air.
● Condition: Envelopes should not be wrinkled, nicked, or otherwise damaged.
● Temperature: You should use envelopes that are compatible with the heat and pressure of the
printer.
● Size: You should use only envelopes within the following size ranges.
◦ Minimum: 76 x 127mm (3 x 5 inches)
◦ Maximum: 216 x 356mm (8.5 x 14 inches)
NOTE: Use only tray 1 or the optional envelope feeder to print envelopes. You might experience some
jams when using any media with a length less than 178mm (7 inches). This might be caused by paper
that has been affected by environmental conditions. For optimum performance, make sure you are
storing and handling the paper correctly. Also, choose envelopes in the printer driver (see
Supported
printer drivers on page 11 ).
Envelopes with double side seams
Double side-seam construction has vertical seams at both ends of the envelope rather than diagonal
seams. This style might be more likely to wrinkle. Be sure the seam extends all the way to the corner
of the envelope as illustrated below.
ENWW Media considerations 67