Lexmark W820 Service Manual - Page 72

4025-Finisher Attendance Message Service Checks 280 - Attendance Message Logic Control sensed that the H-Tra Input Sensor was not deactuated within a specified time after it was actuated. Step Actions and Questions Yes No 1 PATH LOCATION INSPECTION Go to step 2 Go to step 5 Inspect the position of the sheet of paper in the H-Tra. Has the trail edge of the sheet of paper cleared the H-Tra Input Sensor? 2 SENSOR TEST Go to step 4 Go to step 3 Enter Diagnostics and check the H-Tra Input Sensor function. 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 H-TRA INPUT SENSOR Problem Go to step 4 Replace the H-Tra Input Sensor. Go to "Sensors Removal" solved on page 4-20. Enter Diagnostics and check the H-Tra Input Sensor function. 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? 4 FINISHER MAIN BOARD Problem Replace the Replace the Finisher Main Board. Go to "PWB Assembly- solved MCU Board Main Removal" on page 4-132. Enter Diagnostics and check the H-Tra Input Sensor function. 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? 5 PATH PAPER INSPECTION Go to step 6 Replace the Inspect the Drive Rolls in the entire H-Tra Assembly. suspect Drive Are all of the Drive Rolls in the H-Tra Assembly clean and Rolls free of obvious wear and damage? 6 DRIVE TRAIN TEST Go to step 7 Replace the Enter Diagnostics and select Output Bin Tests. Select Feed Test, Output Bin 2 to run the Finisher Main Feed Motor. Finisher Main Feed Motor Does the Finisher Main Feed Motor run smoothly? 7 DRIVE TRAIN INSPECTION Go to step 8 Replace the Inspect the drive train, including belts, pulleys, and gears, of the entire H-Tra Assembly from the Finisher Main Feed Motor to Feed Roller 1. suspect belts, pulleys, and gears Does the entire drive train of the H-Tra Assembly appear to be in good condition, with no damaged or slipping belts and no chipped or broken pulleys or gears? 2-12 Service Manual