HP M4345 User Guide - Page 79

Media considerations Envelopes 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 105g/m2 (28lb) or jamming might occur. ● Construction: Prior to printing, envelopes should lie flat with less than 6mm (0.25inch) curl, and should not contain air. ● Condition: Envelopes should not be wrinkled, nicked, or otherwise damaged. ● Temperature: You should use envelopes that are compatible with the heat and pressure of the printer. ● Size: You should use only envelopes within the following size ranges. ● Minimum: 76x127mm (3x5inches) ● Maximum: 216x356mm (8.5x14inches) NOTE Use only tray1 or the optional envelope feeder to print envelopes.You might experience some jams when using any media with a length less than 178mm(7inches). This might be caused by paper that has been affected by environmental conditions. For optimum performance, make sure you are storing and handling the paper correctly. Also, choose envelopes in the printer driver (see Supported printer drivers). 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 as illustrated below. ENWW Media considerations 67