i did try as per your suggestions but it did not work. when i disconnect my printer from usb port and try to print "self test page" it works well. but as soon as i connect it to any of the ports (usb) the lights on printer get ON and doesn't proceed further. I have also installed it manually through control panel.....! (the system is 64 bit Windows 7)
i m facing the same problem.its better to formate window 7 and get vista or XP.