I thought I had this problems solved, but it looks like I responded prematurely. Anyhoo, here is the scenario:
I sometimes use my PowerBook 5300 as a printer server for my Performa 640. I connect my StyleWriter to the PB and turn on printer share. The 2 computers are linked via Farallon's AirDock. When I open the chooser in the 640 and select the printer, "Shared Printer" appears on the right. I select this. Then when I print a document from the 640, the document spools but then I get an error message that says "File not found". Both machines have the print driver for the StyleWriter installed. It would help if I knew what the "file" is that cannot be found.