HP 4100TN - Manual (Page 199)

EN Paper specifications 197
Envelopes
Envelope construction
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 components listed below.
Many envelope manufacturers are now making envelopes optimized
for laser printers.
● Weight: The weight of the envelope paper should be 75 to
105 g/m
2
(20 to 28 lb), or jamming may result.
● Construction: Prior to printing, envelopes should lie flat with less
than 6 mm (0.25 in) curl, and should not contain air. (Envelopes
that trap air may cause problems.)
● Condition: Make sure envelopes are not wrinkled, nicked, or
otherwise damaged.
● Sizes in tray 1: From 76 by 127 mm (3 by 5 in) to 216 by 356 mm
(8.5 by 14 in).
● Sizes in the optional envelope feeder: From Monarch (#7-3/4)
(98.4 by 190.5 mm, or 3.88 by 7.50 in) to B5 (ISO) (176 by 250
mm, or 6.93 by 9.84 in).
If you do not have an optional envelope feeder, always print
envelopes from tray 1 (see “Printing envelopes” on page 55). To print
envelopes with the optional envelope feeder, see “Feeding envelopes
automatically (optional envelope feeder)” on page 57. If envelopes
curl, try opening the rear output bin.
Envelopes with double-side-seams
Double-side-seam construction has vertical seams at both ends of
the envelope rather than diagonal seams. This style may be more
likely to wrinkle unless properly constructed. Be sure the seam
extends all the way to the corner of the envelope.
Envelopes with adhesive strips or flaps
Envelopes with a peel-off adhesive strip or with more than one flap
that folds over to seal must use adhesives compatible with the heat
and pressure in the printer. The extra flaps and strips might cause
wrinkling, creasing, or jams.