HP 4000n HP LaserJet 4000 Printer Series - HP LaserJet 4000, 4000 T, 4000 N, a - Page 123

Guidelines for Using Paper For best results, use conventional 20 lb (75 g/m2) 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. If you are unsure what type of paper you are loading (such as bond or recycled), check the label on the package of paper. Some paper causes print quality problems, jamming, or damage to the printer. Symptom Poor print quality or toner adhesion. Problems with feeding. Problem with Paper Too moist, too rough, too smooth, or embossed; faulty paper lot. Dropouts, jamming, curl. Stored improperly. Increased gray background shading. Excessive curl. Problems with feeding. Too heavy. Too moist, wrong grain direction or short-grain construction. Jamming, damage to printer. Cutouts or perforations. Problems with feeding. Ragged edges. Solution Try another kind of paper, between 100-250 Sheffield, 4-6% moisture content. Store paper flat in its moisture-proof wrapping. Use lighter paper. Open the rear output bin. Open the rear output bin. Use long-grain paper. Do not use paper with cutouts or perforations. Use good quality paper. Note Do not use letterhead paper that is printed with low-temperature inks, such as those used in some types of thermography. Do not use raised letterhead. The printer uses heat and pressure to fuse toner to the paper. Make sure that any colored paper or preprinted forms use inks that are compatible with the printer's temperature (400° F or 205° C for 0.1 second). A-6 Specifications EN