lexmark x9575 wireless connection

Hi all
I've had the lexmark x9575 for about 2 years
I've had it work over wifi a few times, but not always
usually I get a printer busy or failed to connect
has anyone setup one of these
right now I'm trying to use it over my USrobotics 8054 router
fyi yes it works using the usb cable..
I have tried talking to their "tech" people, they said I should use the
usb cable...hahaha, then why sell a wifi product if it does not work
hope someone has some good suggestions to get this working..
best

Sorry to tell you as a long term Lexmark user they do not have any IT PROFESSIONAL staff who are even remotely interested in Macs. Back as far as Tiger days they advertised for two years OS X.4 drivers on the Lexmark web site and eventually after a long battle they had to agree there were in fact no OS X.4 drivers, but that still appears on the web site.