Lexmark MB2338 Service Manual page 131

Action
Step 6
a
Turn off the printer, and then unplug the power cord.
b
Remove the power supply. See
page 260.
c
Check the power supply, including its fuse and capacitors, for
damage.
CAUTION—SHOCK HAZARD: To avoid the risk of
electrical shock, do not touch the exposed wires and circuits.
Is the power supply free of damage?
Step 7
Replace the power supply. See
page 260.
Does the problem remain?
Step 8
Check the fuser for problems. See
page 129.
Does the problem remain?
Fuser low temperature error service check
Note: Make sure that the voltage output of the electrical outlet matches the voltage rating of the printer.
Action
Step 1
a
Remove the right cover. See
page 223.
b
Remove the rear door and cover. See
removal" on page
c
Reseat all the cables from the controller board.
d
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?
"Power supply removal" on
"Power supply removal" on
"Fuser error service check" on
"Right cover removal" on
"Rear door and cover
273.
Diagnostics and troubleshooting
Yes
Go to step 8.
Go to step 8.
Contact the next
level of support.
Yes
Go to step 2.
Go to step 3.
131
7017-2xx, -4xx, -6xx
No
Go to step 7.
The problem is
solved.
The problem is
solved.
No
The problem is
solved.
Go to step 5.