During my Sunday browsing on the internet I came across, again, the most wonderful site to search for many MK related items.
It has free machine knitting patterns, copies of the punchcards which came with various machines, MK videos, BOOK REVIEWS, where to get manuals, software, ....you name it and you can probably find the link to where to get it!! I even saw downloads of how to adjust your ribber (brother standard and bulky and the SR ribber). I even found a listing of where to get machine knitting yarn.
Check it out. Bookmark the link for your future reference....this site is well organized and the people contributing are knowledgeable.