128 Error Code - Lexmark C752 Service Manual

128 error code

Fuser hot roll is under temperature during standby
Step Action and questions
1 Turn the printer on and allow it to reach a Ready
prompt.
Note: The printer may not complete POR and continue
to display the 128 Error message.
Remove the fuser assembly from the printer. Measure
the voltage on connector J33-6 on the system board.
The voltage should measure approximately 3.3 V dc.
Is the voltage correct?
2 Measure the voltage on the fuser DC control connector
on the LVPS. Measure the voltage on pin 6 of the
connector.
Does the voltage measure approximately +3.3 V dc.
129 error code
Fuser backup roll is under temperature during standby.
Step Action and questions
1 Turn the printer on and allow it to reach a Ready
prompt.
Note: The printer may not complete POR and
continues to display the 129 Error message.
Remove the fuser assembly from the printer. Measure
the voltage on connector J33-7 on the system board.
The voltage should measure approximately +3.3 V dc.
Is the voltage correct?
2 Measure the voltage on the fuser DC control connector
on the LVPS. Measure the voltage on pin 7 of the
connector.
Does the voltage measure approximately +3.3 V dc.
Yes No
Go to step 2 Replace the
"System board"
on page
Replace Replace the
the"Fuser "LVPS
assembly" on assembly" on
page 4-32. page
Yes No
Go to step 2 Replace the
"System board"
on page
Replace Replace the
the"Fuser "LVPS
assembly" on assembly" on
page 4-32. page
Diagnostic information
5060-2XX
4-67.
4-42.
4-67.
4-42.
2-49