Lexmark CX825 Service Manual page 545

Action
Step 24
Check the interface board cables for cuts and damage.
Are the cables free of damage?
Step 25
Replace the cable.
Does the problem remain?
Step 26
a
Reseat all connectors on the MSHPF controller board.
b
Make sure that the cables are properly routed, and then reset
the printer.
Does the problem remain?
Step 27
Replace the MSHPF controller board. See
board removal" on page
Does the problem remain?
Door N undetected service check
Action
Step 1
a
Check the MSHPF for proper installation, and then check its
paper path. See "Procedure before starting the MSHPF
service checks" on page
b
Enter the Diagnostics menu, select Output bin quick feed >
select bin, and then touch Single or Continuous.
Does the problem remain?
Step 2
a
Enter the Diagnostics menu, and then navigate to:
Output device diagnostics > Sensor tests > Finisher
b
Find the sensor (Door J interlock).
Does the sensor status change while toggling the sensor?
Step 3
Reseat the sensor cable, and then check the sensor for
misalignment and damage.
Is the sensor properly installed and free of damage?
"MSHPF controller
937.
256.
Diagnostic information
Yes
Go to step 26.
Go to step 26.
Go to step 27.
Contact the next
level of support.
Yes
Go to step 2.
Go to step 5.
Go to step 5.
545
7564
No
Go to step 25.
The problem is
solved.
The problem is
solved.
The problem is
solved.
No
The problem is
solved.
Go to step 3.
Go to step 4.