HP 1120C printer problem

HP printer deskjet 1120C was working fine and all of a sudden it satted printing blank pages . I canot print diagnostic or test page. I am using 1200C driver assigned by Windows XP. I also loaded a a 1120C Driver from the Wizard which is also on the server. Windows will not allow me to delete the 1200C driver saying it's in use. I also do not have toolbox to help troubleshoot the problem and cannot seem to find anywhere to download it from. The printer is plugged into Port LPT1

Any sugestions would be appreciated.

Thanks ,

Bill