Lexmark C912 Service Manual - Page 46

5055-xxx • Inspect all supplies (OCR, cartridges, photodevelopers/toner cartridges, belts, fuser CRUs) and paper sources (cassettes, trays, feeders, duplex drawers, finishers, mailbox trays) for obvious damage and proper installation (paper under corner bucklers, paper guides not too tight). Inspect for correct media usage (paper, transparencies, labels). • Print a Demo page. • If additional paper sources are installed, print a Demo page from each of these, (if possible). Note: Failure to print from an additional tray or feeder may imply one or more pins are bent in the mating connector. Return parts Engineering periodically analyzes returned parts for failure modes. Include a printed test (DEMO) page, before and after the repair, and tag any returnable parts with a description of the failure. Service recommendations Before leaving the printer check the following: • Be sure printer is on a flat, level, strong tabletop or level floor. This is very important for color printers that use belts. Check and set registration as necessary. • Shake all cartridges and be sure they are correctly installed and fully seated. • While the cover is open, wipe any residual toner from the LEDs using a lint free cloth. • If you have serviced the finisher option, and in the process pulled it away from the printer during repair, ensure that it is properly aligned with the printer. 1-30 Service Manual