Apple site for drivers

Apple menu > Software update.

,I have been to printer and scanners there is nothing showing so I have clicked on the plus sign that takes me to add but there is nothing in there

This means your printer is not being detected.

Is it connected via USB to your computer?

You go to the Printer website and search for compatible drivers for your Mac.

Apple menu > About this Mac - System Informationand look under USB to see of the printer is listed.

Make sure it is connected to a USB port directly on back of computer.

George your printer is either supported or not. Please read and follow Apple's instructions for adding a printer. You can find them by clicking Mac Basics: Printing in OS X

However you have not provided us any useful information, at a minimum we need to know the version of OS X installed and exactly which Epson printer you are attempting to add. Without these basics it's difficult at best to help you.

According to Epson's website:

http://www.epson.com/cgi-bin/Store/support/SupportMavericks.jsp

The WF-2510 is not compatible with Mavericks.

You can also look to alternative sources such as the Gutenberg Foundation to see if there is printer driver available for that device. If it's an old AIO they you may want to consider replacing it. If Epson is like other printer/scanner firms they have no incentive to develop a driver for an older device. When a device is old they probably don't have the resources (manpower) available to work on them, they want their people focused on newer products.