Card stock and heavy paper Many types of card stock and paper can be printed from tray 1, including index cards and postcards. For optimum printer performance, do not use paper heavier than 199 g/m 2 (53 lb) in tray 1 or 105 g/m 2 (28 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. Note Before loading card stock, make sure it is regular in shape and not damaged or wrinkled. Also, make sure the cards are not stuck together. The table below summarizes the paper specifications that provide the best performance. Table 14.
Paper specifications EN Chapter 1 Printer description 35 Property Specifications Basis weight 64 g/m2 to 105 g/m2 (17 lb to 28 lb) typical. See the user guide for specific printer and input limits. Caliper (thickness) 0.09 mm to 0.17 mm (3.5 mil to 6.5 mil) typical. See the user guide for specific printer and input limits. Minimum stiffness 1.2 minimum (Taber) machine direction; 0.8 minimum (Taber) cross direction. Grain Portrait feeding: short or long grain up to 36 lb. Landscape feeding: long grain. Electrical surface resistivity 109 to 1013 ohms/square. Electrical volume resistivity 109 to 1014 ohms - cm.
Surface roughness 100 to 190 Sheffield optimal; 30 to 350 Sheffield extended (fusing or feeding performance can be degraded at outer ranges). Fusing compatibility Must not scorch, melt, ignite, offset materials, or release undesirable emissions when heated to a temperature between 175° to 230° C (347° to 446° F) for 0.1 second. Furnish (composition) One hundred percent chemical pulp and/or cotton content; recycled paper with up to 5 percent groundwood can be used. Dimensional accuracy Cut sheet within ±0.80 mm (±0.03 inch) of nominal. Cut edge quality Cuts must be smooth and clean with no fray or edge roll. Curl Must lie flat within 5 mm (0.2 inch).
Moisture content 4 percent to 6 percent by weight. Packaging Card stock and heavy paper should be packaged in a moisture-proof ream wrap. Wax pick 12 minimum (Dennison).