Before kissing your R320 goodbye (assuming it is otherwise in good condition), Google for Epson R320 "end of service life," "service life reset" and "waste ink pad bypass mod" resources. If your model is similar to previous "R" series printers, it's an easy fix.
The "end of service life" message is generated when the printer calculates there have been sufficient borderless prints and cleaning cycles to saturate the waste ink pad that lines the inside bottom of the printer. But at this point the pad usually isn't saturated to the point of overflow or leakage -- although I'd never significantly tip any inkjet printer with a fair amount of use on it, for doing so could cause leakage.
For earlier Epsons -- and perhaps your model too -- the solution is to reset the service life counter with a compatible free utility, and then make a simple mod that routes the cleaning cycle waste ink tube from the bottom of the printer out the back and into a waste ink jar. If your printer has a little panel on the left rear (as facing the back) of the printer, you can remove this panel (retained by a #1 Phillips screw) and with a suitable home made hook tool (think: trimmed coat hanger) or cheap surgical forceps, and pull the purge hose out. A small hole must be drilled in the panel or just below it (if there are no internal obstacles) for the purge hose to pass through.
In most cases, you can easily at least double the life of the printer this way and since the only ink reaching the original ink pad now will be from borderless print overspray and occasional wiping/spraying of ink onto the foam surface under the transport. Since the vast majority of waste ink in Epsons is generated by print head cleaning cycles, it will take a very long time for the factory inkpad to become critically saturated after the external waste ink collection mod is made. Just make sure the vessel used to collect the ink is inkproof, fairly spillproof and can be secured with velcro so that curious kids or pets can't spill or drink it...