Error Code - Lexmark 13P0195 - C 750dn Color Laser Printer Service Manual

129 Error code

The fuser backup roll is under temperature during standby. Replace the fuser top duct. See
removal" on page
Step Action and questions
Turn the printer on and allow it to reach Ready.
1
Note: The printer may not complete POR and continue
to display the 129 error message.
Remove the fuser assembly from the printer and
measure the voltage on connector J10-7 on the engine
board. The voltage should measure approximately
+3.3 V dc.
Is the voltage correct?
2 Measure the voltage on pin 7 of the DC control
connector on the LVPS. The voltage should measure
approximately +3.3 V dc.
Is the voltage correct?
4-34.
"Fuser top duct
Yes No
Go to step 2 Replace the engine
board assembly.
See
board removal"
on page
Replace the fuser Replace the LVPS
assembly. See assembly. See
"Fuser assembly "Low voltage
removal" on power supply
page 4-31. (LVPS) removal"
on page
Diagnostic information
5060-00x
"Engine
4-29.
4-38.
2-49