Lexmark W820 Service Manual - Page 85
Finisher Exit Path Sensor
UPC - 734646210508
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4025-Finisher Step Actions and Questions Yes No 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, through the Shift Rolls, and on to the Exit 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? 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. • Shift Roll Unit • Wiring and connectors linking the FRUs 291 - Attendance Message Logic Control sensed that the Finisher Exit Path Sensor was not actuated within the specified time after the Finisher Path Sensor 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 Finisher. Has the leading edge of the sheet of paper actuated the Finisher Exit Path Sensor? 2 SENSOR TEST Go to step 4 Go to step 3 Enter Diagnostics and check the Finisher Exit 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 EXIT PATH SENSOR Problem Go to step 4 Replace the Finisher Exit Path Sensor. Enter Diagnostics and solved check the Finisher Exit 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? Diagnostic Information 2-25