Lexmark C910 - Page 139

Diagnostic Information 2-23
5055-01X
5 Test the FU/FD
sensor while
actuating the
sensor. Does the
voltage fluctuate
between 0 V and
+5 V between pins
1 and 2 on
connector CN12
on the printer
controller board?
Go to step 6. Replace the FU/FD
deflector sensor
6 Check the cable
from the FU/FD
solenoid to the
printer controller
board for broken
insulation and
possible shorting
to the frame. Is the
cable OK?
Replace the printer
controller board.
Replace the FU exit
assembly and the
printer controller
board.
Step
Questions /
Actions
Yes No