Lexmark C540 Service Manual - Page 132

5025-2xx, 4xx Paper path, transport components In order for an image to be printed, the media has to be moved from an input source (such as a tray) into the printer and eventually exit into the output bin. The most important component in this process is this media itself. Old, damaged or out-of-specification media can and will cause feed and transport problems. If you encounter problems, you should always check the media first. See "Media guidelines" on page 1-12. In addition, it is always good practice to check the printer and driver settings to see if the media being used matches the user's settings. It is not uncommon to find a user printing on card stock with the printer programmed to print on a plain paper setting. The printer's feed and transport components can fail and cause paper jams or other feed and transport problems. These components should be examined for damage or wear and replaced if necessary. Paper path Information This printer has a simple "C" shaped paper path (see the picture below). The tray 1 paper path is shown in red and the optional 650-sheet duo drawer paper path is not shown. Paper is fed from the rear of the printer and travels upward through the front cover. There is a duplex unit on this printer. The duplex unit is built into the front cover and tray 1. The duplex process is described later. See "Duplex process" on page 3-44. 3-42 Service Manual