Single Led Printhead Communication Failure; Multiple Led Printhead Clock Failure - Lexmark X95x series Service Manual

7558-xxx
Step Action and questions
POR the machine.
5
Does the error continue?

115.12 Single LED printhead communication failure

Step Action and questions
Check the LED printhead for
1
proper installation.
Is the LED Printhead properly
installed?
Check the LED printhead for
2
proper connections.
Is the above component
properly connected?
Replace the printhead flat data
3
cable
Does the error remain?
Replace the printhead interface
4
contact.
Does the error remain?
Check the PC/developer drive
5
motor assembly.
Is the above component
properly installed?
POR the machine.
6
Does the error continue?
POR the machine.
7
Does the error continue?

115.13 Multiple LED printhead clock failure

Step Action and questions
Check the LED printhead for
1
proper connections.
Is the above component
properly connected?
Service Manual
2-52
Yes
Replace the upper printer engine
PCBA.
Go to
"Upper printer engine
PCBA removal" on page 4-186.
Yes
Go to step 2.
Replace the LED printhead. Go
to
"LED printhead removal" on
page 4-102.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Replace the lower engine PCBA.
Go to
"Lower engine PCBA
removal" on page 4-104.
Go to step 7.
Replace the upper printer engine
PCBA.
Go to
"Upper printer engine
PCBA removal" on page 4-186.
Yes
Go to step 2.
No
Problem resolved
No
Install the LED printhead
properly.
Replace the connections.
Problem resolved
Problem resolved
Replace connections and re-
install the PC/developer drive
motor assembly.
Problem resolved
Problem resolved
No
Replace the connections.
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