Lexmark C950 Service Manual page 174

5058-030
Step Action and questions
Check the sensor (MPF feed out)
3
for proper operation.
1. Enter the Diagnostics Menu.
2. Touch SENSOR TESTS.
3. Touch PRINTER SENSOR
TESTS.
4. Touch Sensor (MPF feed
out).
Does the display on the
operator panel change every
time the sensing area of the
above sensor is interrupted or
blocked?
Check the sensor (MPF feed out)
4
for proper connection.
Is the above component
properly connected?
Check the registration drive
5
motor for proper operation.
When performing
motor tests, ensure
that all cover and
door interlock
switches are
overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch PRINTER MOTOR
TESTS.
4. Touch Registration motor.
Does the above component
operate properly?
Check the registration drive
6
motor for proper connection.
Is the above component
properly connected?
Service Manual
2-126
Yes
Go to step 5.
Replace the sensor (MPF feed
out). Go to
"MPF tray feeder
removal" on page 4-122.
Go to step 7.
Replace the registration drive
motor. Go to
"Registration drive
motor removal" on page 4-141.
No
Go to step 4.
Go to step 6.
Replace the connections.
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