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

135 Error code

Hot fuser
The fuser assembly is running over temperature or the backup roll fuser lamp has been on too long. Error 135
may also indicate a problem in the fuser assembly with the backup roll fuser bearings, back up roll thermistor,
LVPS, or engine board.
Step Action and questions
1 Turn the printer on, open the right side fuser access
door and observe the backup roll lamp to see if it turns
on and off. You may have to observe the lamp for a few
minutes to see if it turns on and off.
Does the lamp turn on and off.
2 Turn the printer on. Measure the voltage on engine
board connector J10-12. The voltage should be
approximately +0.13 V dc to +0.64 V dc as the backup
roll turns on and off.
Does the voltage change?
Yes No
Go to step 2 Replace the LVPS
assembly. See
"Low voltage
power supply
(LVPS) removal"
on page
Replace the fuser Replace the engine
assembly. See board assembly.
"Fuser assembly See
removal" on board removal"
page 4-31. on page
Diagnostic information
5060-00x
4-38.
"Engine
4-29.
2-55