Power off machine and unplug, remove back cover. on the left of the board is a row of dim switches. switch dim 7 to on [ second to the left is dim 7 ] replace cover. power up in service mode. in the service mode go to system switches. scroll to page 10. change the read out [ should look like this 10000000 ] to 10000100. press enter. restart machine in normal way and it is now a sp300v and will work on versaworks [ i have ver 4.1 free to download off roland and no dongle needed] you just need to start versaworks and add printer. will select itself if you change to usb thks