Welcome to the forum. First off its not blank firing, no model gun made in japan is a blank firer, they do fire what are called plug fire caps, brass rounds that are reusable and take a small cap to simulate firing. they are not as powerful or as loud as a blank and if you used a proper 9mm blank it would blow the gun apart and a lot of conversion to actually get it to fire.
looking at the pic the bolt looks in good order and not cut as some were, so it should work fine, i dont see the recoil tube, do you have one? There should also be a pin in the chamber, this is not a chamber block but is required to allow the cap to be struck and fire. The gun looks in A1 shape but impossible to tell if its a wall hanger or firer without pic of the chamber and assuming you have the recoil tube, as i say the bolt looks to be in working order so thats a good sign.