While you wait for answers, we may have found some information which could help you.
Click here for Lexmark Vista Printerhow can I fix lexmark 7300 all in one fax?
Lemark 7300 and Windows Vista?
How do I install a Lexmark X2250 printer w/o the installation CD?
Missing driver Lexmark7300 series?
can you install lexmark 1200 series?
how can i install my lexmark x1190 without a disk?