Could you explain why a "screen copy" would be better than directing the output to a document?
Problems with screen capture is that for some purposes you might end up with poor resolution especially if the result needs to be re-scaled later and some output is likely to be too long to capture in a single image with resulting problems of getting all the output needed in chopped into pieces output.
Sending the output directly to RTF or PDF document may be much easier and cleaner.