All the printers I knew were 9 or 24 pin... Unless it's the big one in the Uni. I don't remember what it was, but it was IBM and 132 chars wide, and I had a quota of 30,000 chars (or was it lines) a month and I made sure I used it.
@M0KHR@M0YNG@moon@mattgrayyes In which case I have no idea. Can't remember which model we had, and unlike the amiga, my parents didn't leave it in the attic for me to find.
The serial interface for Commodore devices was a DIN socket - 6-pin, which the printer used. You would piggy back it through the disk drive, and the last thing connected would be the printer.