Printers and scanners are just normal devices. if they don't show up in PS, then this means that their drivers are not compatible. Get a new driver from the vendor then and install it.
The printer will not scan unless it is also a scanner; normally described as an all-in-one: printer/scanner/fax. If that is what you have then the driver is what you need.
For CS6, most scanners and printers are still 32bit and will not work with Ps x64...try in Ps x32.
Thank you kindly..
Any new Epson will work with 64 bit.