Lexmark MB2236 - Page 161

Action Yes No
Step 1
Perform a POR.
Does the error remain?
Go to step 2. The problem is
solved.
Step 2
a Write down the exact 900.xx error code that appears on the
display.
b Turn o the printer.
c Clear the print queues.
d Disconnect all communication cables, and then remove all
memory options.
e Remove any installed ISP.
f Reset the printer into the Diagnostics menu.
Does the problem remain?
Go to step 3. Go to step 6.
Step 3
Check all the cables on the controller board for proper connection.
Are the cables properly connected?
Go to step 5. Go to step 4.
Step 4
a Reconnect the cables.
b Reset the printer into the Diagnostics menu.
Does the problem remain?
Go to step 5. Go to step 6.
Step 5
a Replace the controller board. See “Controller board removal”
on page 228.
b Reset the printer.
Note: If a
dierent
error code displays, then go to the service
check for that error code.
Does the problem remain?
Go to step 31. The problem is
solved.
Step 6
Print the following:
• Error Log
• Menu Settings Page
• Network Settings Page
Does the problem remain while printing these pages?
Go to step 31. Go to step 7.
3400-48x
Diagnostics and troubleshooting
161