Sensor (Duplex Input) Service Check (External Duplex Only); Sensor (Duplex Exit) Service Check (External Duplex Only); Sensor (Pass Through) Service Check - Lexmark X651de Service Manual

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Sensor (duplex input) service check (external duplex only)

Step
Check the sensor (duplex input) for damage.
1
Is the above component free from damage?
1. Enter the diagnostic mode
2
2. Select Duplex sensor tests
3. Select Sensor test
4. 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.
Check the above sensor for proper connection.
3
Is the above sensor connected properly?

Sensor (duplex exit) service check (external duplex only)

Step
Check the sensor (duplex exit) for damage.
1
Is the above component free from damage?
1. Enter the diagnostic mode
2
2. Select Duplex sensor tests
3. Select Sensor test
4. Observe the line item "exit"
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked.
Check the above sensor for proper connection.
3
Is the above sensor connected properly?

Sensor (pass through) service check

Step
1. Enter the diagnostic mode
1
2. Select Input tray tests
3. Select Sensor test
4. Select the appropriate tray number
5. Observe the line item "pass through" for the appropriate
media tray
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked.
Service Manual
2-110
Check
Check
Check
Yes
Go to step 2. Replace the
external duplex
unit assembly.
The sensor is Go to step 2.
working properly
Replace the Replace the
external duplex connection.
unit assembly.
Yes
Go to step 2. Replace the
external duplex
unit assembly.
The sensor is Go to step 2.
working properly
Replace the Replace the
external duplex connection.
unit assembly.
Yes
The sensor is Go to step 2.
working properly
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