Lexmark C950 Service Manual page 105

Step Action and questions
Check the toner dispense motor
4
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 Y toner dispense
motor.
Does the above component
operate properly?
Check the toner dispense motor
5
for proper connection.
Is the above component
properly connected?
Check the developer motor for
6
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 Developer motor.
Does the above component
operate properly?
Check the developer motor for
7
proper connection.
Is the above component
properly connected?
POR the machine.
8
Does the error continue?
POR the machine.
9
Does the error continue?
Yes
Go to step 6.
Replace the toner dispense
motor.
Go to
"Toner dispense motor
removal" on page 4-163.
Go to step 8.
Replace the PC/developer drive
motor.
Go to
"PC/developer drive
motor removal" on page 4-132.
Replace the lower engine PCBA.
Go to
"Lower engine PCBA
removal" on page 4-98.
Go to step 9.
Replace the upper printer engine
PCBA.
Go to
"Upper printer engine
PCBA removal" on page 4-181.
5058-030
No
Go to step 5.
Replace the connections.
Go to step 7.
Replace the connection.
Problem resolved
Problem resolved
Diagnostic information
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