Xerox 8500DN Service Manual - Page 314

Service Parts Disassembly Replacement Note After replacing the Process Drive, Drum Maintenance Pivot Plate or the Drum Maintenance Camshaft (or any component requiring removal of the Process Drive), the printer may experience Front Cover jams from Tray 2. The jam occurs with paper in the Preheater and C3T jam errors (strip flag timeout during transfix) recorded in Jam History. In many cases, Tray 1 (MPT) prints with no jams. These symptoms indicate that the Transfix Load Module is incorrectly timed resulting in a late arrival of the leading edge at the strip flag. The likely cause is the position of the Drum Maintenance Camshaft gear in relation to the Process Drive gear. To correct this problem, see "Timing the Drum Maintenance Camshaft" on page 6-9. X-Axis Motor (PL4.0.12) 1. Remove the Right Side Cover (page 8-5). 2. Disconnect the harness. 3. Remove 4 screws securing the motor to the chassis and remove the motor. X-Axis Motor Side Rail s8500-108 Replacement Note When reinstalling the X-Axis Motor, ensure that the fork, extending out from the side of the cone nut on the motor shaft, is engaged with the side rail. Install and torque the 4 screws to 12 in. lbs. Reconnect the harness. Before restoring power, center the Printhead in its range of motion using a flatblade screwdriver to turn the X-Axis Motor shaft. 8-44 Phaser 8400/8500/8550/8560 Color Printer Service Manual