HP LaserJet 1020 HP LaserJet 1020 - User Guide - Page 29
Label construction, Transparencies, Envelopes, Envelopes with double-side seams - windows 10
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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/m2 (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