Error Code - Lexmark C750 Service Manual

5060-00x
Step Action and questions
7 Measure the voltage on pin 7 of the fuser DC control
connector The voltage should measure approximately
+3.3 V dc.
Is the voltage correct?

132 Error code

Cold fuser hot roll
Step Action and questions
1 Measure the voltage on connector J10-11 on the
engine board. The voltage should measure
approximately +0.13 V dc to 0.64 V dc as the hot 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 1 and 2 on
the AC fuser connector on the fuser assembly.
Is there continuity?
3 Make sure the hot 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 by the glass envelope.
Warning: Use caution when handling the lamp, as it is
easily broken.
Check continuity of the hot roll lamp.
Is there continuity?
5 Reinstall the fuser assembly. Watch to see if the lamps
turn on and off as the lamps heat up.
Do the lamps turn on and off?
2-52
Service Manual
Yes No
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 hot roll
lamp correctly.
Replace the fuser Replace the hot roll
assembly. See lamp.
"Fuser assembly
removal" on
page 4-31.
Go to step 6 Replace the LVPS
assembly. See
"Low voltage
power supply
(LVPS) removal"
on page
4-38.
4-38.