Lexmark Pro5500 Series, Руководство по обслуживанию

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181.770—Flag detection failure (PRA home move) service check
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?
Go to step 3. 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.
3 Check if the pump motor initializes during POST.
Does the pump motor initialize during POST?
Go to step 4. Go to step 5.
4 Replace the system board. See “System board
removal” on page 4-32 .
Does the problem remain?
Go to step 5. Problem resolved
5 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 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?
Go to step 2. Go to step 6.
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?
Go to step 3. Go to step 6.
3 Check the PRA sensor and flag for any damage.
Are the PRA sensor and flag free from any damage?
Go to step 4. Go to step 6.
4
Check if the PRA assembly will initialize during POST.
Does the PRA assembly initialize during POST?
Go to step 5. Go to step 6.
5 Replace the system board. See “System board removal”
on page 4-32 .
Does the problem remain?
Go to step 6. Problem
resolved
6 Replace the print engine assembly. See “Print engine
assembly removal” on page 4-84 .
Does the problem remain?
Replace the
printer. Replace the
printer.
Step Check Yes No