Sensor (Narrow Media) Service Check; Sensor (Duplex Input) Service Check - Lexmark T650n Service Manual

Sensor (narrow media) service check

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

Sensor (duplex input) service check

Step
1 Check the sensor (duplex input) for damage.
Is the above component free from damage?
2 1. Enter the diagnostic mode
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
Check
Yes
Go to step 2. Replace the fuser
unit assembly.
Go to
assembly
removal (T650,
T652, T654)" on
page
The sensor is Go to step 2.
working properly
Replace fuser unit Replace the
assembly. connection.
"Fuser unit
Go to
assembly
removal (T650,
T652, T654)" on
page 4-16.
Yes
Go to step 2. Replace the
sensor (duplex
input).
Go to
(duplex input)
removal (T652,
T654)" on
page
The sensor is Go to step 2.
working properly
Diagnostic information
4062
No
"Fuser unit
4-16.
No
"Sensor
4-58.
2-117