Lexmark C950 Service Manual page 153

Step Action and questions
Check upper redrive motor for
7
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 upper redrive motor
(forward).
5. Touch upper redrive motor
(reverse).
Does the above component
operate properly?
Check the upper redrive motor for
8
proper connection.
Is the above component
properly connected?
Check upper redrive exit 2 gate
9
solenoid 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 Upper redrive
diverter gate solenoid.
Does the above component
operate properly?
Check the upper redrive diverter
10
gate solenoid for proper
connection.
Is the above component
properly connected?
POR the machine, and perform a
11
print test. Go to
"PRINT TESTS"
on page 3-22.
Does the error continue?
POR the machine, and perform a
12
print test. Go to
"PRINT TESTS"
on page 3-22.
Does the error continue?
Yes
Go to step 9.
Replace the upper redrive
assembly. Go to
"Upper redrive
assembly removal" on
page 4-183.
Go to step 11.
Replace the upper redrive
assembly. Go to
"Upper redrive
assembly removal" on
page 4-183.
Replace the lower engine PCBA.
Go to
"Lower engine PCBA
removal" on page 4-98.
Replace the upper printer engine
PCBA.
Go to
"Upper printer engine
PCBA removal" on page 4-181.
5058-030
No
Go to 8.
Replace the connection.
Go to step 10.
Replace the connection.
Problem resolved
Problem resolved
Diagnostic information
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