Dell C5765DN Dell Color Laser Multifunction Printer User's Guide - Page 200

12 Paper and Other Media Print Media Guidelines Print media is paper, labels, envelopes, and coated paper among others. Your machine provides high-quality printing on a variety of print media. Selecting the appropriate print media for your machine helps avoid printing troubles. This section describes selecting print media, caring for print media, and loading the print media in the paper trays. Paper For the best print quality in color, use 75 gsm xerographic, grain long paper. For the best print quality in black and white, use 90 gsm xerograhic, grain long paper. It is recommended that you try a sample first before buying large quantities of any print media. When loading paper, identify the recommended print side on the paper package, and load the paper accordingly. See "Loading Paper" (P.207) for detailed loading instructions. Paper Characteristics The following paper characteristics affect print quality and reliability. It is recommended that you follow these guidelines when evaluating new paper stock. Weight The tray automatically feeds paper weights from 60 to 216 gsm grain long. Paper lighter than 60 gsm may not feed properly, and could cause paper jams. For best performance, use 75 gsm grain long paper. Curl Curl is the tendency of print media to curve at its edges. Excessive curl can cause paper feeding problems. Curl usually occurs after the paper passes through the machine, where it is exposed to high temperatures. Storing paper unwrapped, even in the paper tray, can contribute to paper curling prior to printing and cause feeding problems regardless of humidity. When printing on curled paper, straighten the paper and then insert it into the Tray 5. Smoothness The degree of paper smoothness directly affects print quality. If the paper is too rough, the toner does not fuse to the paper properly, resulting in poor print quality. If the paper is too smooth, it can cause paper feeding problems. Smoothness between 150 and 250 Sheffield points produces the best print quality. Moisture Content The amount of moisture in the paper affects both print quality and the ability of the machine to feed the paper properly. Leave the paper in its original packaging until you are ready to use it. This limits the exposure of the paper to moisture changes that can degrade its performance. Grain Direction Grain refers to the alignment of the paper fibers in a sheet of paper. Grain is either grain long, running the length of the paper, or grain short, running the width of the paper. For 60 to 135 gsm paper, grain long fibers are recommended. For paper heavier than 135 gsm, grain short is preferred. 200