Good news,, Got my diy dtg Epson r3000 printer back into roll mode after constant Paper Jammed messages.. I bought another R3000 used on Ebay. I had to set it up roll mode, which was a peace of cake.. Once that was done I remove it's main board and swapped it out with the troublesome r3000 main board, that solved the problem and now both printers functioning fine. Nice thing is the printer I bought on Ebay can still put into roll mod, or used sheet mode.. I need to thank Dave at UFO printer,, he gave me the idea how to go about it...