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I also use an R8'' w/ LR 1.3.1. No problem printing borderless. Just make the selection in the Epson printer driver dialog box for the paper size you need. If that doesn't seem to work, maybe you can describe the problem in more detail and we can walk through it together.
The older Epson printers would only print borderless on certain photographic sized papers(probably not A4). Do the newer ones let you print borderless on any size?
Thank you all for your help. The problem is fixed. I had selected A4 in "Page Setup" within Lightroom but missed the further selection of Borderless A4 Sheet Feed.
My first post in these forums and grateful for the helpful replies