To copy, the printer needs to scan the document first. Has the scanner bar got stuck or jammed. You will know that as it scans a light moves along the document....is it doing this?
Our Epson did this a while back. I applied a little Vaseline to the slide bar with a cotton bud, worked the thing up and back a few times and then powered it off and back on again so that it went back to the
Worth a try.
proper scan/copy position, and never had any more trouble. Might be similar.