Media specifications Note Before purchasing large quantities of paper, make sure the paper meets the requirements specified in this service manual and in the HP LaserJet Printer Family Print Media Guide. See "Media input/ output options" on page 40. Always test print media before buying large quantities. Note HP neither warrants nor recommends the use of a particular brand of paper or print media. Media properties are subject to manufacturing changes, and Hewlett-Packard has no control over such changes. Although testing media helps to characterize the performance and process quality by the manufacturer, the customer assumes all responsibility for the quality and performance of media.
Guidelines for selecting paper For best results, use conventional 75 g/m 2 (20 lb) paper. Make sure the paper is of good quality, and free of cuts, nicks, tears, spots, loose particles, dust, wrinkles, voids, and curled or bent edges. Note Some print media might meet all of the guidelines in this manual and still not produce satisfactory results. This might be the result of improper handling, unacceptable temperature and humidity levels, or other variables over which Hewlett-Packard has no control. If you are unsure what type of paper you are loading (such as bond or recycled), check the label on the package of paper.
For information about measuring basis weight, see "Basis weight field test" on page 35. For information about measuring caliper, see "Caliper field test" on page 37. For information about smoothness, see "Paper finish field test" on page 37. Hint Do not purchase more media than can be easily used in a short time (about 3 months). Media stored for long periods experiences heat and moisture extremes that can be damaging. Planning is important to prevent damage to a large supply of media. Special media specifications Envelope specifications Successful printing on envelopes depends upon the quality of the envelopes.
Envelope fold lines can vary considerably, not only between manufacturers, but also within a box from the same manufacturer. When selecting envelopes, consider the following components: Construction —Prior to printing, envelopes should lie flat with less than 10 mm (0.39 in) curl, and have well-constructed seams. Condition— Envelopes should not be wrinkled, nicked, or otherwise damaged. Temperature —Envelopes should be compatible with the heat and pressure produced by the printer. C8519-90912 Media specifications 31