@ Viking,
By the way, does somebody know how much RAM Turboprint 7.40 and a Canon s900 needs?
Processing graphics for printing takes a lot of memory regardless of what platform you're doing it on (Win versus Amiga). I have TurboPrint v7.3x for use with my Epson Stylus Color 660 printer. To get the best results, I have a lot of the high quality options turned on. As an example, more than half of the RAM in my 146 MB A4000T ends up in use just by doing a print screen. Buffering also takes up some memory, too. When the printing is complete, the memory is freed up.
Would it work on a standard A-1200 too?
Are you talking a machine with only the 2 MB of Chip RAM?? If so, no way. It will not work in that little memory.