I'm not sure how relevent this is but at one time I wanted my Mac to
be connected to my 2200 via usb and my Dell PC connected to the same
2200 via firewire. I had intermittent problems with this
arraingement, called Epson for guidance and was told that Epson
won't support this type of setup.
My problem was eliminated when I setup a small network between my
computers and just connected the printer to one computer and used it
as a shared printer. I did find out that QTR doesn't like firewire
connections with Mac computers.
Best regards,
Randy