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Step
3
Check the J26 connector for proper connection.
Reseat the J26 cable. Check the EOF sensor for
any mechanical damage.
Is the EOF sensor free from any damage?
Remove the duplex unit. See
4
removal" on page
flag for any mechanical damage. Check the J34
cable and connector on the system board for proper
connection. Reseat the J34 cable.
Is the staging sensor flag free from any
damage?
5
Check the J35 cable and connector on the system
board for proper connection and any damage.
Reseat the J35 cable.
Is the J35 cable and connector free from any
damage?
6
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?
7
Check the feed assist rollers for wear and
contamination. Check the paper for skid marks,
which could be possible roller slips during picking.
Are the feed assist rollers free from wear and
contamination?
8
Check the pressure arm and pressure arm roll for
any damage.
Is the pressure arm assembly free from any
damage?
9
Check if the feed rollers initialize during POST.
Do the feed rollers initialize during POST?
10
Replace the system board. See
removal" on page
Does the problem remain?
11
Replace the print engine assembly. See
engine assembly removal" on page
Does the problem remain?
Check
"Duplex unit
4-11. Check the staging sensor
"System board
4-32.
"Print
4-84.
Marketing Name
Yes
Go to step 4.
Go to step 11.
Go to step 5.
Go to step 11.
Go to step 6.
Go to step 11.
Go to step 7.
Replace the duplex
unit. See
removal" on
page
4-11.
Go to step 8.
Do any of the
following:
• Clean the rollers.
• Go to step 11.
Go to step 9.
Go to step 11.
Go to step 10.
Go to step 11.
Go to step 11.
Problem resolved
Replace the
Problem resolved
printer.
Diagnostic information
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"Duplex unit
2-82
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