Lexmark 7463-032, Service Manual

Page: 143 / 834

Communication failure with flatbed scanner and ADF
Action Yes No
Step 1
Check the cable that connects the ADF to the controller board in the
printer.
Is the above cable properly connected?
Replace the flatbed
scanner controller
board. See
“Flatbed
scanner PCBA
removal” on page
515
.
Replace the
connection.
Step 2
Place an undamaged document in the ADF, and perform an ADF test.
Does the problem remain?
Replace the ADF
controller PCBA. Problem resolved.
Step 3
Perform a print test using the ADF.
Does the problem remain?
Contact the next
highest level of
technical support. Problem resolved.
System software error service check
There are different types of 900.xx errors that can occur. There may be a communication problem (bad cable, network
connection, and so on) software issue, or a hardware problem with the controller board, or ISP (internal solutions port).
The communication and software aspects should be checked first. Determine if the problem is constant or intermittent.
Use the troubleshooting procedure below to isolate the issue. Take any notes as instructed. You will need that
information in the event you need to contact your next level of support.
Note: Before troubleshooting, 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 Yes No
Step 1
POR the printer.
Does the error remain?
Go to step 2. The problem is solved.
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?
Go to step 3. Go to step 6.
7463
Diagnostic information
143