Bad news on the black spool of white ASA. The spool does fit in the printer however when you snap the cover on, the spool is a bit too wide so the cover actually pinches and won't allow the spool to move freely so it can't print.
You'll probably just need to find normal 1lb rolls unfortunately, but I guess it means the winder won't need any adjustments to wind onto the 2lb roll so there's that!