181.770-Flag Detection Failure (Pra Home Move) Service Check - Lexmark Pro5500t Service Manual

Step
2 Check the J9 and J21 connectors on the system
board for proper connection. Reseat the J9 and J21
cables; and check for any damage.
Are the cables and connectors free from
damage?
3 Check if the pump motor initializes during POST.
Does the pump motor initialize during POST?
4 Replace the system board. See
removal" on page
Does the problem remain?
5 Replace the print engine assembly. See
engine assembly removal" on page
Does the problem remain?
181.770—Flag detection failure (PRA home move) service check
Step
1 Check the J6 and J46 connectors on the system board for
proper connection. Reseat the J6 and J46 cables, and
check for any damage.
Are the cables and connectors free from damage?
2 Turn off the printer. Visually check the Pressure Release
Arm (PRA) lift for any damage. Manually turn the gear
clockwise until it lifts the pressure arms, and it goes back
to its original position.
Can the gear turn 360 degrees?
3 Check the PRA sensor and flag for any damage.
Are the PRA sensor and flag free from any damage?
4 Check if the PRA assembly will initialize during POST.
Does the PRA assembly initialize during POST?
5 Replace the system board. See
on page
Does the problem remain?
6 Replace the print engine assembly. See
assembly removal" on page
Does the problem remain?
Check
"System board
4-32.
Check
"System board removal"
4-32.
4-84.
Yes
Go to step 3.
Go to step 4.
Go to step 5.
"Print Replace the
4-84. printer.
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
"Print engine Replace the
printer.
Marketing Name
No
Do any of the
following:
• If the cables are
damaged, then go
to step 5.
• If the connectors
are damaged, then
go to step 4.
Go to step 5.
Problem resolved
Problem resolved
Yes No
Go to step 6.
Go to step 6.
Go to step 6.
Go to step 6.
Problem
resolved
Replace the
printer.
2-60
Diagnostic information
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