Hello, have not been able to print for awhile now. I went into printers on my lap top and this printer is not listed. Then I tried to reinstall using the hp software included with my purchase. This did not work. I tried to add a new printer to my printer screen and that did not work. I don't know what else to do? My computer is a Toshiba lap top, vista 32, a usb connection. I am a newbee.