Lexmark W820 Service Manual - Page 79

4025-Finisher 286 - Attendance Message Logic Control sensed that the Finisher Input Path Sensor was not actuated within the specified time after the HTra Exit Sensor was deactuated. Step Actions and Questions Yes No 1 PATH LOCATION INSPECTION Inspect the position of the sheet of paper on the H-Tra. Has the lead edge of the sheet of paper actuated the Finisher Input Path Sensor? Go to step 2 Go to step 5 2 SENSOR TEST Go to step 4 Go to step 3 Enter Diagnostics and check the Finisher Input Path 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 FINISHER INPUT PATH SENSOR Problem Go to step 4 Replace the Finisher Input Path Sensor. Go to "Sensor, Input solved Path Removal" on page 4-41. Enter Diagnostics and check the Finisher Input Path 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 Finisher Input Path 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 Finisher, especially the Input Rolls and the Registration Rolls. suspect Drive Rolls Are all of the Drive Rolls in the Finisher clean and 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 Finisher Assembly from the Finisher Main Feed Motor to the Registration Rolls. suspect belts, pulleys, and gears Does the entire drive train of the Finisher Assembly appear to be in good condition, with no damaged or slipping belts and no chipped or broken pulleys or gears? Diagnostic Information 2-19