There appears at a superficial examination, to be no source for that Canon typewriter board.
Do you have a volt meter? if so, testing whether the fuse is getting voltage at all, is a necessary thing, or very useful. IF the fuse is whole but not getting voltage, then something else in the primary power chain / wiring / plugs / connector(s), is defective, period. And you might not need the board, so much as some careful examination and very basic (and less expensive) repairs.
If you must have the board, I would say that either
- Canon USA themselves, *might* have it. Contacting them directly by phone would be advisable, to make sure they do or don't have that board to sell any more. (If your typewriter is over 5 years old, the chances are slim to none, I would guess... but calling them to find out would be advisable, for the last word on the subject.)
Canon's Customer Support # ***** general, is 1-800-OK-CANON. But they might need to transfer you to Parts.
- or, scanning craigslist.com for a typewriter of that sort, junked or damaged, or just plain in the Free category (being given away), and hoping to get a board from it, would be the other way to go.
Let me know how it goes, please. Thanks. (And rate my answer if / when you are done with this case, could you?) Good luck with it.