Hi All I've been working on my Canon Cat to get it so I can print to a HP printer. I've gotten the basics to work. For anyone interested, you can find some notes I have on the tForth in the Cat and my HP driver. The notes and things are on: www.digibarn.com The current listing has a couple of typos that I hope to get fixed but they are not hard to find. One is in the definition of HPdocbreak. It has #S intead of #s ( this tForth is case sensitive ). The other is in the final definition that connects the HP driver. The definition is: : HP ['] HPsetup exa setup' ; And should have been: : HP ['] HPsetup exa setup' ! ; I'm also interested in talking to anyone else interested in looking at what is inside of the Cat. Dwight