This is most annoying...
I have been looking for small printers for a while but completely missed this one. However, having just downloaded the user manual from Canon, it talks about win3.1 and win95 so it's about 10 years old. It doesn't appear to be openly sold anymore but there are some going on Ebay.
It is also only IR or parallel Centronics, not USB, and that will be a hassle since IR is flakey and centronics uses a thick cable. I guess this is why people looking at Canon will go for the IP90 instead.