Epson R300 two sided printing

[auldain]

Can anyone advise me on how to get this facility onto my G5 iMac. I've worked through the Help section and tried to reinstall the Epson driver but the printer dialogue box (layout) still shows the two side print option grey'd out at "off".
I'm running Mac OS X Leopard. Printer driver is V3.9.

 

[sickmacdoc]

I know this may sound like a pretty obvious question, but I have to ask.

I have done a little research online regarding this printer in the last few minutes and have found no reference whatsoever of it being a duplex capable printer, so I have to wonder if it really even is...

My RX680 for example came with a separate duplex unit that had to be installed in order to make it duplex capable, but I can not even find any reference to a duplex unit being available even as an option for the R300 to be honest.

So the simple answer is if it does not have a duplexer on the rear of the printer, the option will remain unavailable for obvious reasons.

 

[Batt]

I've got an R300, and sickmacdoc is correct - no physical duplexing ability, thus the grayed-out option.