Lexmark T650n - Sensor (Input) Service Check; Sensor (Fuser Output) Service Check

2-116 Service Manual
4062
Service checks
Sensor (input) service check
Sensor (fuser output) service check
Step Check Yes No
1 Check the sensor (input) for damage.
Is the above component free from damage?
Go to step 2. Replace the
sensor (input).
Go to “Sensor
(input) removal
(T650, T652,
T654)” on
page 4-60.
2
1. Enter the diagnostic mode
2. Select Base 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.
The sensor is
working properly
Go to step 2.
3
Check the above sensor for proper connection.
Is the above sensor connected properly?
Replace the
Sensor (input).
Go to “Sensor
(input) removal
(T650, T652,
T654)” on
page 4-60.
Replace the
connection.
Step Check Yes No
1 Check the sensor (fuser output) for damage.
Is the above component free from damage?
Go to step 2. Replace fuser unit
assembly.
Go to “Fuser unit
assembly
removal (T650,
T652, T654)” on
page 4-16.
2
1. Enter the diagnostic mode
2. Select Base 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.
The sensor is
working properly
Go to step 2.
3
Check the above sensor for proper connection.
Is the above sensor connected properly?
Replace the fuser
unit assembly.
Go to “Fuser unit
assembly
removal (T650,
T652, T654)” on
page 4-16.
Replace the
connection.