This is a very interesting (and timely) discussion since I am working on an ImageWriter II as well.
While Apple never wrote color drivers for the ImageWriter II, at least one third party developer did. The one I am familiar with is MacPalette II and it will allow you to print in full color from a Mac.
There are 3 versions of the ImageWriter II. I am guessing you have the second (1986) version. The last version (1990) is MUCH more streamlined internally and considerably easier to take apart. A couple days ago I took apart a 1986 version and then a 1990 version. The 1990 version is so much more beautifully modular.
While Apple never wrote color drivers for the ImageWriter II, at least one third party developer did. The one I am familiar with is MacPalette II and it will allow you to print in full color from a Mac.
There are 3 versions of the ImageWriter II. I am guessing you have the second (1986) version. The last version (1990) is MUCH more streamlined internally and considerably easier to take apart. A couple days ago I took apart a 1986 version and then a 1990 version. The 1990 version is so much more beautifully modular.