Lexmark C950 - Page 154

2-106 Service Manual
5058-030
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232.03 Sensor (registration) late jam (duplex direct)
Step Action and questions Yes No
1 Check the media path.
Is the media path free of any
media fragments?
Go to step 2. Remove any media or media
fragments.
2
Check the duplex rolls for wear.
Is the above component free of
excess wear and damage?
Go to step 3. Replace the upper redrive
assembly.
Go to “Upper redrive assembly
removal” on page 4-183.
3
Check the sensor (registration)
for proper operation.
1. Enter the Diagnostics Menu.
2. Touch SENSOR TESTS.
3. Touch PRINTER SENSOR
TESTS.
4. Touch Sensor (registration).
Does the display on the
operator panel change every
time the sensing area of the
above sensor is interrupted or
blocked?
Go to step 5. Go to step 4.
4
Check the sensor (registration).
Is the above component
properly connected?
Replace the media transport/MPF
drive motor.
Go to “Media transport/MPF
drive motor removal” on
page 4-118.
Replace the connection.
5
Check the duplex 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 Duplex Motor
(reverse).
Does the above component
operate properly?
Go to step 7. Go to step 6.
6
Check the duplex motor for
proper connection.
Is the above component
properly connected?
Replace the printer left duplex
door assembly. Go to
“Printer
left duplex door assembly
removal” on page 4-136.
Replace the connection.
7
POR the machine, and perform a
print test. Go to
“PRINT TESTS”
on page 3-22.
Does the error continue?
Replace the lower engine PCBA.
Go to “Lower engine PCBA
removal” on page 4-98.
Problem resolved