Rick ChurchillSorry for the time taken up in discussing borderless printing tonight. I started by saying that I had failed to get my printer to print borderless (but it fools you into thinking that this is an option).
The print dialogue box/Epson printer driver (not Apple generic) allows a tick box "Border: Off". However the options are to put several different types of line round the edge of the print and has nothing to do with allowing the print head to dispense ink right to the edge of the page.
My mistake in thinking that this might be otherwise.
The handbook shows this option set at Border :Off but does not explain the function.