Use papers printed with heat-resistant inks designed for use in xerographic copiers. The ink must be able to withstandtemperatures up to 230°C (446°F) without melting or releasing hazardous emissions. Use inks that are not affectedby the resin in toner. Inks that are oxidation-set or oil-based generally meet these requirements; latex inks might not.When in doubt, contact the paper supplier.Preprinted papers such as letterhead must be able to withstand temperatures up to 230°C (446°F) without meltingor releasing hazardous emissions.Using recycled paper and other office papers• Low moisture content (4–5%)• Suitable smoothness (100–200 Sheffield units, or 140–350 Bendtsen units, European)Note: Some much smoother papers (such as premium 24 lb laser papers, 50–90 Sheffield units) and much rougherpapers (such as premium cotton papers, 200–300 Sheffield units) have been engineered to work very well inlaser printers, despite surface texture. Before using these types of paper, consult your paper supplier.• Suitable sheet-to-sheet coefficient of friction (0.4–0.6)• Sufficient bending resistance in the direction of feedRecycled paper, paper of lower weight (<60 g/m2 [16 lb bond]) and/or lower caliper (<3.8 mils [0.1 mm]), and paperthat is cut grain-short for portrait (or short-edge) fed printers may have lower bending resistance than is required forreliable paper feeding. Before using these types of paper for laser (electrophotographic) printing, consult your papersupplier. Remember that these are general guidelines only and that paper meeting these guidelines may still causepaper feeding problems in any laser printer (for example, if the paper curls excessively under normal printingconditions).Storing paperUse these paper storage guidelines to help avoid jams and uneven print quality:• For best results, store paper where the temperature is 21°C (70°F) and the relative humidity is 40%. Most labelmanufacturers recommend printing in a temperature range of 18 to 24°C (65 to 75°F) with relative humiditybetween 40 and 60%.• Store paper in cartons when possible, on a pallet or shelf, rather than on the floor.• Store individual packages on a flat surface.• Do not store anything on top of individual paper packages.Paper and specialty media guidelines47
