Hp LaserJet 9050 Printer series User Manual download pdf (Page 164)

162 Appendix A Specifications ENWW

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: See Paper specifications for supported envelope weight.

● Construction: Prior to printing, envelopes should lay flat with less than 6 mm (0.3 inch) curl

and should not contain air. (Envelopes that trap air can cause problems.)

● Condition: Make sure envelopes are not wrinkled, nicked, or otherwise damaged.

● Sizes in optional Tray 1: See Supported sizes of paper for input and output for supported

paper sizes.

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 of the printer. The extra flaps and strips

might cause wrinkling, creasing, or jams.

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.

Envelope storage

Proper storage of envelopes helps contribute to good print quality. Envelopes should be stored

flat. If air is trapped in an envelope creating an air bubble, then the envelope might wrinkle during

printing.

Card stock and heavy paper

For optimum printer performance, do not use paper heavier than 216 g/m

(58 lb bond) in

optional Tray 1 or 199 g/m

(53 lb) in other trays. Paper that is too heavy might cause misfeeds,

stacking problems, jams, poor toner fusing, poor print quality, or excessive mechanical wear.

Card stock construction

● Smoothness: 135 to 216 g/m

(36 to 58 lb bond) card stock should have a smoothness

rating of 100 to 180 Sheffield.

● Construction: Card stock should lay flat with less than 5 mm (0.2 inches) of curl.

● Condition: Make sure card stock is not wrinkled, nicked, or otherwise damaged.

● Sizes: See the sizes listed for Optional Tray 1.

Note Before loading card stock in optional Tray 1, make sure it is regular in shape and not damaged.

Also, make sure the cards are not stuck together.

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Hp LaserJet 9050 Printer series User Manual Page 164