Hi @hatchet,
This sounds like you have either a faulty power switch, or possibly a broken power board.
I’d start by checking the power switch for continuity (you’ll have to start opening the printer). Unfortunately there’s not a whole lot of information about this printer online, and I’ve never worked on one personally, so I’d start carefully and meticulously taking it apart to get at both the switch and the power board inside.
Check the power board for signs of obvious damage, and test any fuse you can see if it’s open.