Lexmark W820 - Optra B/W Laser Printer Service Manual page 103

Step Actions and Questions
4 SWING MOTOR
Replace the Swing Motor. Go to
Removal" on page
the following: Copies 5, Staple ON, Staple Dual
Does the Swing Motor test ok?
5 FINISHER MAIN BOARD
Replace the Finisher Main Board. Go to
Main Removal" on page
Does the Stapler function correctly?
6 MCU BOARD
Replace the MCU Board. Refer to the Printer Service Manual.
Check the Stapler function.
Does the Stapler function correctly?
7 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 Stapler area, Compiler
area, or along the paper path.
995 - Error Code Service Check
Logic control sensed that the installed Finisher is not compatible with the printer.
Step Actions and Questions
1 FINISHER INSPECTION
Inspect the Finisher to make sure it is the correct manufacture
and model for the printer.
Is the Finisher the correct manufacture and model for this
printer?
2 RESET
Switch off the printer and the Finisher. Wait one minute, then
switch on the printer and the Finisher
Is the error code gone?
3 RESEAT
Disconnect then reconnect the Finisher from the printer.
Is the error code gone?
4 FINISHER MAIN BOARD
Replace the Finisher Main Board. Go to
Main Removal" on page
Does the Stapler function correctly?
4025-Finisher
"Motor Assembly-Swing
4-104. From the Finishing Menu, select
"PWB Assembly-
4-132. Check the Stapler function.
"PWB Assembly-
4-132. Check the Stapler function.
Yes No
Problem Go to step 7
solved
Problem Go to step 6
solved
Problem Go to step 7
solved
Yes No
Go to step 2 Replace the
Finisher with
a correct one
Problem Go to step 3
solved
Problem Go to step 4
solved
Problem Go to step 5
solved
Diagnostic Information
2-43