Lexmark X7500 Service Manual - Page 48

4036-501 Strange sound generated (DADF) Cause Paper setting failure Paper failure ADF pick roller improperly installed Motor assembly failure Gear failure Main drive motor assembly Dirt on carriage guides Relevant unit Operation error Operation error Pick roller assembly • DADF registration roll drive motor assembly • DADF main drive motor assembly DADF gear 1, 2, 2B, 3 or 4. Main drive assembly Check method Is the paper correctly set in the upper paper guide? Is the specified paper used? Visual check of pick roller. Visual check or motor rotation. Visual check of gear rotation. Visual check Maintenance method Teach users to properly position the paper. None Re-install pick roller assembly. Replace the failure motor assembly. Replace the failing gear. Replace the motor. None Visual check Clean the carriage guides with isopropyl alcohol. 2-8 Service Manual