Main Fan Service Check - Lexmark CS720 Service Manual

Action
Step 4
Reconnect the cable.
Does the problem remain?
Step 5
Replace the fuser fan. See
Does the problem remain?
Step 6
Replace the controller board. See
page 357.
Does the problem remain?

Main fan service check

Action
Step 1
Check the main fan area for obstructions.
Is the fan area free from obstructions?
Step 2
Remove the obstructions.
Does the problem remain?
Step 3
Check the cable on the JFAN2 connector on the controller board
for proper connection.
Is the cable properly connected?
Step 4
Reconnect the cable.
Does the problem remain?
Step 5
Replace the main fan. See
Does the problem remain?
Step 6
Replace the controller board. See
page 357.
Does the problem remain?
"Fuser fan removal" on page
"Controller board removal" on
"Main fan removal" on page
"Controller board removal" on
Diagnostic information
200
Yes
Go to step 5.
Go to step 6.
299.
Contact the next
level of support.
Yes
Go to step 3.
Go to step 3.
Go to step 5.
Go to step 5.
Go to step 6.
301.
Contact the next
level of support.
5028
No
The problem is
solved.
The problem is
solved.
The problem is
solved.
No
Go to step 2.
The problem is
solved.
Go to step 4.
The problem is
solved.
The problem is
solved.
The problem is
solved.