Lexmark XM3250 Service Manual page 133

Fuser high temperature error service check
Action
Step 1
a
Remove the right cover. See
page 237.
b
Reseat the cooling fan cable on the controller board.
c
Check the cooling fan for damage.
Is the fan free of damage?
Step 2
Replace the fan. See
Does the problem remain?
Step 3
a
Remove the rear door and cover. See
removal" on page
b
Reseat all the cables from the controller board.
c
Reseat all the cables from the power supply.
Does the problem remain?
Step 4
a
Turn off the printer, and then remove the power cord.
b
Check if the resistance (between terminals A and D) of the
power supply socket is close to 30 ohms.
Does the socket have a normal resistance value?
Step 5
a
Disconnect the fuser cable from the power supply, plug the
power cord, and then turn on the printer.
b
Check if the voltage output of the fuser cable
socket on the power supply is normal (100V, 110V,
or 220V).
Does the power supply provide the fuser with the normal voltage
value?
Step 6
a
Turn off the printer, and then unplug the power cord.
b
Remove the power supply. See
page 273.
c
Check the power supply, including its fuse and
capacitors, for damage.
Is the power supply free of damage?
"Right cover removal" on
"Cooling fan removal" on page
"Rear door and cover
295.
"Power supply removal" on
Diagnostics and troubleshooting
Yes
Go to step 3.
Go to step 3.
243.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 8.
133
7018
No
Go to step 2.
The problem is
solved.
The problem is
solved.
Go to step 7.
Go to step 7.
Go to step 7.