Lexmark W820 - Optra B/W Laser Printer Service Manual page 87

Step Actions and Questions
2 INTERLOCK TEST
Enter Diagnostics and check the Exit Roll Interlock Switch
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 EXIT ROLL INTERLOCK SWITCH
Replace the Exit Roll Interlock Switch. Go to
Removal" on page
Exit Roll Interlock Switch 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
Replace the Finisher Main Board. Go to
Main Removal" on page
the Exit Roll Interlock Switch 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 MCU BOARD
Replace the MCU Board. Refer to the Printer Service Manual.
Enter Diagnostics and check the Exit Roll Interlock Switch
function.
Does the Exit Roll Interlock Switch test ok?
6 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
295 - Attendance Message
Logic control sensed that either the Compiler Tray Paper Sensor did not deactuate within the specified time
after the set started to output, or the Compiler Tray Paper Sensor did not deactuate within the specified time
after the Sensor was actuated.
Step Actions and Questions
1 PATH LOCATION INSPECTION
Inspect the position of the sheet of paper exiting the Complier
Tray.
Has the trail edge of the sheet of paper cleared the Compiler
Tray Paper Sensor?
4025-Finisher
4-145. Enter Diagnostics and check the
"PWB Assembly-
4-132. Enter Diagnostics and check
Yes
Go to step 4
Problem
"Exit Assembly solved
Problem
solved
Problem
solved
No
Go to step 3
Go to step 4
Go to step 5
Go to step 6
Yes No
Go to step 2 Go to step 5
Diagnostic Information
2-27