HP LaserJet 1020 Plus Printer - Manual (Page 29)

CAUTION: Do not feed a sheet of labels through the printer more than once. The adhesive degrades
and might damage the printer.
Label construction
When selecting labels, consider the quality of the following components:
● Adhesives: The adhesive material should be stable at 200°C (392°F), the printer's maximum
temperature.
● Arrangement: Only use labels with no exposed backing between them. Labels can peel off sheets
that have spaces between the labels, causing serious jams.
● Curl: Prior to printing, labels must lie flat with no more than 13 mm (0.5 inches) of curl in any
direction.
● Condition: Do not use labels with wrinkles, bubbles, or other indications of separation.
Transparencies
Transparencies must be able to withstand the printer's maximum temperature of 200°C (392°F).
Envelopes
HP recommends that you print envelopes from the priority feed slot.
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: Prior to printing, envelopes should lie flat with less than 6 mm (0.25 inches) curl
and should not contain air. Envelopes that trap air might cause problems. Do not use envelopes
that contain clasps, snaps, tie strings, transparent windows, holes, perforations, cut outs, synthetic
materials, stamping, or embossing. Do not use envelopes with adhesives that do not require
moistening, but rely instead on 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.
● Sizes: The envelope sizes range from 90 x 160 mm (3.5 x 6.3 inches) to 178 x 254 mm
(7 x 10 inches).
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.
ENWW Guidelines for using media 19