Diagnostic information 2-75
7558-xxx
155.01 Toner dispense motor (K) failure
2
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 connections.
3
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 4.
Problem resolved
4
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 Replace the toner cartridge.
Does the error remain?
Go to step 2. Problem resolved
2
Check the toner smart chip PCB.
Is the above component
properly connected?
Go to step 3. Replace the connections.
3
Check the toner dispense 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 K toner dispense
motor.
Does the above component
operate properly (motor
rotating)?
Go to step 5. Go to step 4.
4
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.
5
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