Lexmark Pro5500 Series, Service Manual

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2-71
Service Manual
4447-20x
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Duplex paper jam service check
4 Reseat the J1 cable on the interconnect card, and
check it for any damage.
Check if the J30 and J22 cables are properly
connected to the system board. Check them for any
damage. Reseat the cables.
Are the cables free from damage?
Go to step 6. Go to step 5.
5 Replace the midframe cover assembly. See
“Midframe cover removal” on page 4-50 .
Does the problem remain?
Go to step 6. Problem resolved
6 Replace the system board . See “System board
removal” on page 4-32 .
Does the problem remain?
Replace the
printer. Problem resolved
Step Check Yes No
1 Check the leading edge of the paper for any damage.
Check for any obstruction in the paper path.
Is the leading edge of the paper free from any
damage?
Go to step 2. Clear the paper path
from any
obstruction.
2 Remove the tray assembly, and check the following
conditions for the paper:
• If it is within the stack limit.
• If it is within the paper specifications that is
acceptable by the duplex unit.
• If it has any defects like curls and folds.
• If it is properly placed on the tray.
Is the paper within specifications and free from
any defects?
Go to step 3. Do any of the
following:
• Refer to the
paper
specifications.
See
“Media
input type
specifications”
on page 1-20
and “Media
input sizes
specifications”
on page 1-20
.
• If defects are
found, then
replace the
paper.
• If the paper is
beyond the stack
limit, then lessen
the paper in the
tray.
3 Check the following:
• If there are any damage on the duplex rollers.
• If there are any damage on the duplex flaps.
• If the duplex unit is properly inserted.
Is the duplex unit free from any damage?
Go to step 4. Go to step 7.
Step Check Yes No