Lexmark MX71x Service Manual page 260

Before troubleshooting:
1
Perform the "Steps before starting the 9yy service checks" on page
2
Determine the operating system used when the error occurred. If possible determine whether a PostScript or PCL
file was sent to the device when the error occurred. Ask the customer which Lexmark Solutions applications are
installed on the device.
Action
Step 1
POR the printer.
Does the error remain?
Step 2
a
Write down the exact 900.xx error code displayed on the device.
b
Turn off the printer.
c
Clear the print queues.
d
Disconnect all communication cables, and remove all memory
options.
e
Remove any installed ISP.
f
POR the printer into the Diagnostics menu.
Does the error remain during startup?
Step 3
Check all the cables connected to the controller board for proper
connectivity.
Are the cables properly connected?
Step 4
a
Properly connect the cables to the controller board.
b
POR the printer into the Diagnostics menu.
Does the error remain during startup?
Step 5
a
Replace the controller board.
b
POR the printer.
Does the error remain during startup?
Note: If an error different from the original 900.xx is displayed, consult
the service check for that error.
258.
Yes
Go to step 2.
Go to step 3.
Go to step 5.
Go to step 5.
Go to step 31.
Diagnostic information
260
7463
No
The problem is solved.
Go to step 6.
Go to step 4.
Go to step 6.
The problem is solved.