Printhead Service Check - Lexmark CS720 Service Manual

Action
Step 6
Replace the input option controller board. See
controller board assembly removal" on page
Does the problem remain?
Step 7
Reset the printer.
Does the problem remain?

Printhead service check

Action
Step 1
Reset the printer.
Does the problem remain?
Step 2
Check the cables on the printhead and on the JMIRR1 and JPH1
connectors on the controller board for proper connection.
Are the cables properly connected at both ends?
Step 3
Reconnect the cables.
Does the problem remain?
Step 4
Check the printhead cable for damage, and replace if necessary.
Does the problem remain?
Step 5
Replace the printhead. See
Does the problem remain?
Step 6
Replace the controller board. See
page 357.
Does the problem remain?
"550-sheet tray
382.
"Printhead removal" on page
"Controller board removal" on
Diagnostic information
182
Yes
Go to step 7.
Contact the next
level of support.
Yes
Go to step 2.
Go to step 4.
Go to step 4.
Go to step 5.
Go to step 6.
361.
Contact the next
level of support.
5028
No
The problem is
solved.
The problem is
solved.
No
The problem is
solved.
Go to step 3.
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.