Lexmark T652 - Page 101

Action Yes No
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. Problem is solved.
Step 11
Perform a print test using the duplex.
Does the problem remain?
Contact next level of
support.
Problem is solved.
Sensor (duplex input) service check
Action Yes No
Step 1
Check the sensor (duplex input) for damage, and if necessary,
replace the sensor (duplex input). See
“Sensor (duplex input)
removal (T652, T654, T656)” on page 340.
Go to step 2. Problem is solved.
Step 2
Check if the display on the operator panel changes every time the
sensing area of the media tray sensor (duplex input) is interrupted
or blocked.
a Enter the diagnostic mode.
b Select Duplex sensor tests.
c Select Sensor test.
d Observe the line item “input.”
If necessary, replace the connection, the external duplex unit
assembly (external duplex only), or the duplex input sensor
assembly (internal duplex only). See
“T652, T654, and T656
duplex input sensor assembly removal” on page 317.
Does the problem remain?
Contact next level of
support.
Problem is solved.
4062
Diagnostic information
101