Digital BW, The Print

John,

I had the same problem, or at least very similar.

In the end I deleted every printer, re-installed the drivers from 
Panther install disk 2, set up Epson printers in the printer setup 
utility, and ONLY THEN installed QTR.

In my instance installing QTR before installing Epson drivers disabled 
the ability of the Printer Setup Utility from seeing USB attached 
printers using "Epson USB."

Incidentally, I used the Printer Setup Utility Repair application:

http://www.versiontracker.com/dyn/moreinfo/macosx/14641

to actually do the driver deletion and permissions repair. I don't know 
if this is essential, but doing a permissions repair is absolutely 
essential to getting things working again.

James Haney