Envelopes
HP recommends that you print envelopes from the priority input tray. See Loading media on page 24 for
more information.
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 following components:
●
Weight: The weight of the envelope paper should not exceed 90 g/m
2
(24 lb), or jamming might result.
●
Construction: Before printing, envelopes should lie flat with less than 6 mm (0.25 inch) of curl, and
should not contain air. Envelopes that trap air can cause problems. Do not use envelopes that contain
clasps, snaps, tie strings, transparent windows, holes, perforations, cutouts, synthetic materials,
stamping, or embossing. Do not use envelopes with adhesives that require pressure to seal them.
●
Condition: Make sure that the envelopes are not wrinkled, nicked, or otherwise damaged. Make sure
that the envelopes do not have any exposed adhesive.
Envelopes with double-side seams
An envelope with 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. Make sure that the seam extends all the way to
the corner of the envelope as shown in the following illustration:
1
2
1 Acceptable envelope construction
2 Unacceptable envelope construction
18 Chapter 3 Media specifications ENWW
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