if you look at this page,
OpenPrinting database - All Epson Printers
you can see that OpenPrinting, the best source of advice, says your printer is partially supported; newer iterations of the R200, eg the R280 are more fully supported;
Epson do offer drivers of their own for linux; I can only suggest you try their driver as a comparison, and perhaps let us know how it compares to gutenprint;
Download Inkjet Printer [AVASYS CORPORATION]](http://www.avasys.jp/lx-bin2/linux_e/ink/DL1.do)
if you select your printer, and download the file: you can see it asks you to specify your distro of linux; so presumably it will offer you an rpm file; if you download that, and right click on it, and select install with software manager, that should open YaST: you enter your substitute user, su, (also called root) password;
you may then need to go into CUPS:
open your browser: Firefox, and copy and paste this line
http://localhost:631/
and that should open cups for you; it is a local entry, so do not worry that you are using a browser; you can then configure the Epson printer driver, if you choose to install it;
best wishes, let us know what you opt for;
the above options are free, as in beer;
if you really love your printer, and wish it to work well;
go to turboprint:it will cost you a few dollars;
ZEDOnet | TurboPrint Linux | Printer driver for Linux
install turboprint; it will work quickly and well, and give you optimum performance for your printer; we use it for our Canon inkjet printers