Lexmark C734dn Service Manual page 127

Step Action and questions
Print the following:
6
• Error log
• Menu settings page
• Network settings page
Does the 900.xx error reoccur while these pages
were printing?
Re-attach the communications cable. Restart the
7
printer to operating mode. Send the printer a print job.
Does the 900.xx error reoccur?
Note: Before performing this step, write down this
information about the file being sent to the printer:
• Application used
• Operating system
• Driver type
• File type (PCL, PostScript, XPS, etc.)
Restart the printer to operating mode. Send a different
8
print job to the device.
Does the 900.xx error reoccur?
Upgrade the firmware. Contact your next level of
9
support for the correct firmware level to use.
Restart the printer to operating mode. Send the printer
a print job.
Does the 900.xx error reoccur?
Is the device a Multi Function Printer?
10
Run a copy job.
11
Does the 900.xx error reoccur?
Run a scan to PC job.
12
Does the 900.xx error reoccur?
Is there optional memory installed?
13
Reinstall the memory, and send a print job to the
14
device.
Does the 900.xx error reoccur?
Install a Lexmark recommended memory option. Send
15
a print job to the device.
Does the 900.xx error reoccur?
Is there a modem installed on the device?
16
Reinstall the modem. Restart the device.
17
Does the 900.xx error reoccur?
Upgrade the firmware. Contact your next level of
18
support for the correct firmware level to use.
Restart the printer to operating mode. Send the printer
a print job.
Does the 900.xx error reoccur?
Yes No
Go to step 31. Go to step 7.
Go to step 8. Go to step 10.
Go to step 9. Go to step 10.
Go to step 31. Go to step 10.
Go to step 11. Go to step 13.
Go to step 31. Go to step 12.
Go to step 31. Go to step 13.
Go to step 14. Go to step16.
Go to step 15. Go to step 16.
Go to step 31. Problem
resolved.
Go to step 17. Go to step 21.
Go to step 18. Go to step 20.
Go to step 19. Problem
resolved.
Diagnostic information
5026
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