I have a few WF - 4630 printers. One is only occasionally used for office copies mostly. One day the Start/B&W/Color buttons just stopped working. I connected the printer via usb and did a firm ware update. That actually worked and commanded the printer etc. it updated successfully. I restarted the printer - sill the buttons do not work. Everything else seems to work. I used the EPSON scan software both via USB and Wireless and nothing. I cant seem to find anything on the printer buttons not working. Anyone have any ideas on this? Much appreciated!