these are the details i could find:
printer is a local printer, connected to my pc via USB port. the printer manager in SuSE shows the following:
Location: <nothing shown here>
Print system is CUPS, connected to localhost:631.
Driver is Epson Stylus Color 740 foomatic/gimp-print
The error log shows "Media Tray Empty" (which it definitely isn't). Hunting around google groups this morning seems to suggest that this is a fairly common error, although no-one seems to have a solution for it....
i've tried printing from the command line, and from the SuSE print manager test print - neither work.