Diagnostic information 2-69
7558-xxx
137.01 Upper printer engine PCBA communication error
5
Check the toner dispense motor
for proper connection.
Is the above component
properly connected?
Replace the toner dispense
motor.
Go to “Toner dispense motor
removal” on page 4-170.
Replace the connections.
6
Check the developer 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 Developer motor.
Does the above component
operate properly?
Go to step 8. Go to step 7.
7
Check the developer motor for
proper connection.
Is the above component
properly connected?
Replace the PC/developer drive
motor.
Go to “PC/developer drive
motor removal” on page 4-138.
Replace the connection.
8
POR the machine.
Does the error continue?
Replace the lower engine PCBA.
Go to “Lower engine PCBA
removal” on page 4-104.
If the error remains, then go to
step 9.
Problem resolved
9
POR the machine.
Does the error continue?
Replace the upper printer engine
PCBA.
Go to “Upper printer engine
PCBA removal” on page 4-187.
Problem resolved
Step Action and questions Yes No
1 POR the machine.
Does the error continue?
Replace the upper printer engine
PCBA.
Go to “Upper printer engine
PCBA removal” on page 4-187.
Problem resolved
Step Action and questions Yes No
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