Reverse Engineering a printer's USB Protocol

I have an old 486 linux box that I use for some serial rs232 data
logging.    I also have an *old* canon printer that worked with
windows,that Id like to use with the logger, but it doesnt have any
linux drivers.

So, I would like to make a linux driver for it, but Im not a usb
expert... would such a project be too lofty a goal??  Is it reasonable
to think that the protocol could be extracted and implemented in
linux?? If not, how are (usb) windows device drivers normally ported to
linux?

Just poking around, Ive installed some evaluation versions of software
based usb analyzers, and have sent over a paper feed, reset, etc, and
monitored the traffic spurts, although Im not exactly sure what Im
looking at (or if its even meaningful)... if I posted some of the
traffic I see, would someone be able to point me in the right direction
as to how to proceed?

Thanks!
Ben