Lexmark W820 Service Manual - Page 93

4025-Finisher Step Actions and Questions Yes No 2 EXIT ROLL OPEN/CLOSE HP SENSOR Problem Go to step 6 Replace the Exit Roll Open/Close HP Sensor. Go to "Motor solved Removal" on page 4-84. Enter Diagnostics and check the Exit Roll Open/Close HP Sensor. Insert then remove a sheet of paper into the sensor. Does the Operator Panel LCD change between OP and CL as you insert then remove the paper? 3 MOTOR TEST Go to step 5 Go to step 4 Enter Diagnostics and select Output Bin Tests. Select Feed Test, Output Bin 2 to feed paper through the Finisher. Does the Exit Roll Open/Close Motor test ok? 4 EXIT ROLL OPEN/CLOSE MOTOR Problem Go to step 6 Replace the Exit Roll Open/Close Motor. Go to "Motor solved Removal" on page 4-84. Exit Roll Open/Close Motor function. Does the Exit Roll Open/Close Motor test ok? 5 DRIVE TRAIN INSPECTION Go to step 6 Replace the Inspect the drive train, including belts, gears, and levers of the entire Exit Roll Assembly. damaged FRUs Does the entire drive train of the Exit Roll Assembly appear to be in good condition, with no damaged or slipping gears and no broken levers? 6 FINISHER MAIN BOARD Problem Go to step 7 Replace the Finisher Main Board. Go to "PWB Assembly- solved Main Removal" on page 4-132. Enter Diagnostics and check the Exit Roll Open/Close HP Sensor. Insert then remove a sheet of paper into the sensor. Does the Operator Panel LCD change between OP and CL as you insert then remove the paper? 7 MCU BOARD Problem Go to step 8 Replace the MCU Board. Refer to the Printer Service Manual. solved Enter Diagnostics and check the Exit Roll Open/Close HP Sensor. Does the Exit Roll Open/Close HP Sensor test ok? 8 The following Finisher FRUs and areas are associated with this specific problem. One or more of these FRUs or areas may have failed partially or completely. If you cannot isolate this problem using these steps, replace each FRU or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. • Wiring and connectors linking the FRUs • Broken or damaged FRUs within the Exit Roll area. Diagnostic Information 2-33