Lexmark X644E Service Manual - Page 36

7002-xxx Card stock Card stock is single ply, and has a large array of properties, such as the moisture content, thickness, and texture, that can significantly affect print quality. See "Supported print media" on page 1-9 for information on the preferred weight and for the grain direction of print media. Try a sample of any card stock you are considering using with the MFP before purchasing a large quantity. After printing approximately 10,000 pages of card stock (or each time you replace the print cartridge), complete the following steps to maintain MFP feeding reliability: 1. Print five sheets of paper. 2. Wait approximately five seconds. 3. Print five more sheets of paper. When printing on card stock: • Set the Paper Type menu item in the Paper menu to Card Stock from the operator panel, from the MFP driver, or from MarkVision Professional. • Be aware that preprinting, perforation, and creasing can significantly affect the print quality and cause print media handling or jamming problems. • Avoid using card stock that may release hazardous emissions when heated. • Do not use preprinted card stock manufactured with chemicals that may contaminate the MFP. Preprinting introduces semi-liquid and volatile components into the MFP. • We recommend the use of grain short card stock. Storing print media Use the following guidelines to avoid paper feeding problems and uneven print quality. • Store paper in an environment where the temperature is approximately 21°C (70°F) and the relative humidity is 40%. • Store cartons of paper on a pallet or shelf rather than directly on the floor. • If you store individual packages of paper out of the original carton, make sure they rest on a flat surface so the edges do not buckle or curl. • Do not place anything on top of paper packages. • Store paper in its original wrapper until you load it into the MFP. Avoiding jams Use appropriate print media (paper, transparencies, labels, and card stock) to help ensure trouble-free printing. Note: Try a limited sample of any print media you are considering using with the MFP before purchasing large quantities. By selecting the appropriate print media and loading it properly, you can avoid most jams. The following hints can help you avoid jams: • Use only recommended print media. • Do not overload the print media sources. Make sure the stack height does not exceed the maximum height indicated by the stack line on the labels in the sources. • Do not load wrinkled, creased, damp, or curled print media. • Flex, fan, and straighten print media before you load it. If jams do occur with print media, try feeding one sheet at a time through the multipurpose feeder. • Do not use print media that you have cut or trimmed yourself. • Do not mix print media sizes, weights, or types in the same print media source. • Make sure the recommended print side is loaded in the source according to your simplex or duplex needs. 1-16 Service Manual