Lexmark 13P0150 - C 750dtn Color Laser Printer Service Manual page 104

Replace the FRU's in the following order:
1.
2.
3.
Error Code 125
Error Code 135
Error codes 125 and 135 indicate that a problem exists in the fuser assembly with the
back up roll bearings, back up roll thermistor, LVPS or engine board.
Replace the FRUs in the following order:
1.
2.
3.
Error Code 161
Step Action and Questions
1
Fuser Drive Motor Assembly - Error code 161 indicates that
an incorrect motor is detected. Replace the
Assembly" on page
Note: Anytime the Fuser Drive Assembly is replaced,
perform the "Automated Motor Detection" on page
Does the printer continue to display error code 161?
Error Code 149
Error Code 155
Step Action and Questions
1
Connector J8 on the Engine Board - Check to make sure
that the fuser drive motor cable is correctly connected to J8
on the Engine Board. Go to
Is the cable connected correctly?
2
FRU Replacement - Replace the following Frus in the order
shown:
1. "Fuser Drive Assembly" on page
2. "Engine Board" on page
2-84
Service Manual
"Fuser" on page 4-15
"LVPS" on page 4-14
"Engine Board" on page 4-13
"Fuser" on page 4-15
"LVPS" on page 4-14
"Engine Board" on page 4-13
4-16.
"Engine Board" on page
4-16.
4-13.
5060-XXX
Yes
Call your next
"Fuser Drive level support
3-16.
Yes
Go to step 2
5-1.
Replace the
"Fuser Drive
Assembly" on
page 4-16
No
Problem
Solved
No
Correctly
install the
cable
Replace the
"Fuser" on
page 4-15