Error Code - Lexmark C750 Service Manual

Step Action and questions
Turn the print on and allow it to reach Ready.
6
Note: The printer may not complete POR and
continues to display a 132 error.
Remove the fuser assembly from the printer and
measure the voltage on connector J10-6 on the engine
board. The voltage should measure approximately
+3.3 V dc.
Is the voltage correct?
7 Measure the voltage on pin 6 of the fuser DC control
connector. The voltage should measure approximately
+3.3 V dc.
Is the voltage correct?

133 Error code

Cold fuser backup roll
Step Action and questions
1 Measure the voltage on connector J10-12 on the
engine board. The voltage should measure
approximately +0.13 V dc to +0.64 V dc as the backup
roll lamp turns on and off.
Is the voltage correct?
2 Remove the fuser from the printer. Check continuity of
the hot roll lamp by measuring between pins 2 and 5 on
the AC fuser connector on the fuser assembly.
Is there continuity?
3 Check to make sure the backup roll lamp is installed
correctly.
Is the lamp installed correctly?
4 Carefully remove the lamp from the fuser assembly,
being careful to only handle the lamp by the ceramic
end pieces and not be the glass envelope.
Warning: Use caution when handling the lamp as it is
easily broken.
Check continuity of the backup roll lamp.
Is there continuity?
Yes No
Go to step 7 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
Yes No
Replace the fuser Go to step 2
assembly. See
"Fuser assembly
removal" on
page 4-31.
Go to step 5 Go to step 3
Go to step 4 Install the backup
roll lamp correctly.
Replace the fuser Replace the
assembly. See backup lamp.
"Fuser assembly
removal" on
page 4-31.
Diagnostic information
5060-00x
"Engine
4-29.
4-38.
2-53