Lexmark M52 Series Service Manual page 279

Action
Step 8
Check the sensor for improper installation, contamination, and
damage.
Is the sensor properly installed and free of contamination and
damage?
Step 9
Reinstall or replace the sensor.
Does the problem remain?
Step 10
a
Remove the SHPF left cover. See
left cover removal" on page
b
Reseat the cable on the motor (SHPF stack height) and on the
SHPF controller board.
Does the problem remain?
Step 11
Check the SHPF stack height assembly and its motor for improper
installation and damage.
Is the stack height assembly properly installed and free of damage?
Step 12
Reinstall or replace the stack height assembly.
Does the problem remain?
Step 13
Make sure that the controller board of the affected optional bin is
properly installed. Reseat all the cables on the controller board.
Does the problem remain?
Step 14
Check the affected controller board and its connector pins for
damage.
Are the bin controller board and its connectors free of damage?
Step 15
Replace the bin controller board. See
controller board removal" on page
Does the problem remain?
"Staple, hole punch finisher
699.
"Staple, hole punch finisher
705.
Diagnostics and troubleshooting
279
Yes No
Go to step 10. Go to step 9.
Go to step 10. The problem is
solved.
Go to step 11. The problem is
solved.
Go to step 13. Go to step 12.
Go to step 13. The problem is
solved.
Go to step 14. The problem is
solved.
Contact the next Go to step 15.
level of support.
Contact the next The problem is
level of support. solved.
4064