Sensor (Duplex Input) Lingering Jam Service Check - Lexmark T650 Service Manual

4062
Step
10 Perform a print test and check the duplex drive motor
assembly for proper operation.
Does the above component operate properly?
11 Check the external duplex media path for obstructions.
Is the above component free from obstructions?
12 Check the external duplex unit assembly for proper
installation.
Is the above component properly installed?
13 Check the sensor (duplex input) for proper operation.
1. Enter the diagnostic mode
2. Select Duplex tests
3. Select sensor test
3. Observe the line item "input"
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked.
Perform a print test using the duplex.
14
Does the problem remain?

Sensor (duplex input) lingering jam service check.

Use this procedure for the following jams:
• 230.01
Step
1 Check media origination.
Did the media originate from the internal duplex?
2 Check the internal duplex media path for obstructions.
Is the above component free from obstructions?
3 Check the duplex guide assembly, front for damage.
Is the above component free from damage?
2-134
Service Manual
Check
• 230.05 • 232.00
Check
Yes
Go to step 14. Replace the
duplex drive motor
assembly.
Go to "Duplex
drive motor
assembly
removal (T652,
T654, T656)" on
page 4-18.
Go to step 12 Remove
obstructions.
Go to step 13. Remove then
properly re-install
the external
duplex unit
assembly.
Go to step 14. Replace the
external duplex
assembly.
Contact next Problem solved.
highest level of
tech support.
Yes
Go to step 2 Go to step 7
Go to step 3 Remove
obstructions.
Go to step 4. Replace the
duplex guide
assembly, front.
Go to "Duplex
guide assembly,
front removal
(T652, T654,
T656)" on
page 4-20.
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