You would be better off starting a new post for the build log in the correct section, you are likely to get more help that way & it stops it getting messy with different topics.

As for your power supply unit, Roland who make musical instruments & Roland DG the people who make plotters & printers are 2 completely different companies lol Main reason I suggested giving them a call wasn't so much to buy a new power supply but to see if the technical department could help at all with more info on the machine, user manuals, schematics service manuals that sort of thing.