Lexmark MS821

Action Yes No
Step 8
Check the sensor for improper installation, contamination, and
damage.
Is the sensor properly installed and free of contamination and
damage?
Go to step 10. Go to step 9.
Step 9
Reinstall or replace the sensor. See
“Sensor (HCOE pass‑through)
removal” on page 578.
Does the problem remain?
Go to step 10. The problem is
solved.
Step 10
a Remove the HCOE left cover. See “HCOE left cover removal”
on page 550.
b Make sure that the controller board of the aected optional bin
is properly installed. Reseat all the cables on the controller
board.
Does the problem remain?
Go to step 11. The problem is
solved.
Step 11
Check the aected controller board and its connector pins for
damage.
Are the bin controller board and its connectors free of damage?
Contact the next
level of support.
Go to step 12.
Step 12
Replace the bin controller board. See
“HCOE controller board
removal” on page 552.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Sensor (HCOE pass‑through) late‑arriving or late‑leaving jam service check
Action Yes No
Step 1
Make sure that all the optional bins are properly installed.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
Open all optional bin doors, and then check the paper path and
bins for paper fragments and partially fed paper.
Is the paper path free of paper fragments and partially fed paper?
Go to step 4. Go to step 3.
4064
Diagnostics and troubleshooting
200