Lexmark XM3250 Service Manual page 136

Action
Step 1
a
Turn off the printer, and then unplug the power cord.
b
Remove the rear door and cover. See
removal" on page 295.
c
Remove the right cover. See
page 237.
d
Reseat all the cables from the controller board.
e
Reseat all the cables from the power supply.
Does the problem remain?
Step 2
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 3
a
Disconnect the fuser cable from the power supply, 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 4
a
Turn off the printer, and then remove 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?
Step 5
Replace the power supply. See
page 273.
Does the problem remain?
"Rear door and cover
"Right cover removal" on
"Power supply removal" on
"Power supply removal" on
Diagnostics and troubleshooting
136
Yes No
Go to step 2. The problem is
solved.
Go to step 3. Go to step 5.
Go to step 4. Go to step 5.
Contact the next Go to step 5.
level of support.
Go to step 6. The problem is
solved.
7018