Lexmark Pro5500 Series, Service Manual

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900.xx—Firmware error service check
3 Check the J1, J2, and J3 connectors on the carrier
card for proper connection and damage.
Reseat the J1, J2, and J3 cables.
Are the cables and connectors free from
damage?
Go to step 4. Do any of the
following:
• If the cables are
damaged, then go
to step 6.
• If the connectors
are damaged, then
go to step 5.
4 Replace the printhead. See “Printhead removal”
on page 4-73 .
Does the problem remain?
Go to step 5. Problem resolved
5 Replace the carrier card. See “Printhead carrier
card removal” on page 4-67 .
Does the problem remain?
Go to step 5. Problem resolved
6 Replace the printhead carrier cables. See “Cable
parts packet” on page 7-8 .
Does the problem remain?
Go to step 7. Problem resolved
7 Replace the tank receiver assembly. See “Tank
receiver assembly with inlet removal” on
page 4-79
.
Does the problem remain?
Go to step 8. Problem resolved
8 Replace the system board. See “System board
removal” on page 4-32 .
Does the problem remain?
Go to step 9. Problem resolved
9 Replace the print engine assembly. See “Print
engine assembly removal” on page 4-84 .
Does the problem remain?
Replace the
printer. Problem resolved
Step Check Yes No
1 Disconnect the USB, network, and fax cables from
the system board. Turn off the printer by unplugging
the power cord. Wait for 10 seconds, and turn on
the printer.
Does the problem remain?
Go to step 2. Problem resolved
2
Check all the cables on the system card for proper
connection.
Are all the cables properly connected?
Go to step 3. Reseat all cables.
3
Check the J28 cable and connector for proper
connection and any damage.
Is the J28 properly connected and free from any
damage?
Go to step 4. Go to step 6.
Step Check Yes No