Action Yes No
Step 7
Check if the display on the operator panel changes every time the
sensing area of the media tray sensor (duplex input) is interrupted.
a Enter the Diagnostic mode.
b Select Duplex tests.
c Select Sensor test.
d Observe the line item, “input.”
If necessary, replace the connection or the sensor (duplex input).
Go to
“Sensor (duplex input) removal” on page 382.
Does the problem remain?
Go to step 8. The problem is
solved.
Step 8
Remove obstructions in the external duplex media path.
Does the problem remain?
Go to step 9. The problem is
solved.
Step 9
Remove, and then properly reinstall the external duplex unit
assembly.
Does the problem remain?
Go to step 10. The problem is
solved.
Step 10
Check if the display on the operator panel changes every time the
sensing area of the media tray sensor (duplex input) is interrupted.
a Enter the Diagnostic mode.
b Select Duplex tests.
c Select Sensor test.
d Observe the line item, “input.”
If necessary, replace the connection or the external duplex
assembly.
Does the problem remain?
Go to step 11. The problem is
solved.
Step 11
Perform a print test using the duplex.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
7462
Diagnostic information
104
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