Jonathan, I didn't say that you have to send an image at 720 ppi; I said that the Epson driver will resample your image to its native working resolution of 360 ppi for wide-format printers and 720 ppi for desktop printers. That has been clearly stated by Epson (http://files.support.epson.com/pdf/pro10a/pro10aps.pdf , page 22, Note 2).
I was suggesting that since the Epson upsampling is apparently done by the Nearest Neighbour method, one might get better results by doing it oneself with a better upsampling method such as Bicubic, Lanczos, or Vector, and applying sharpening afterwards. The makers of QImage claim that to be true. I am trying QI at present, but print to a file instead of sending the file direct to the printer. Although 720 ppi files are very large, that enables me to look at the results of their sharpening and modify it if necessary before sending it to the printer. Bob Frost. ----- Original Message ----- From: "Jonathan Ratzlaff" <[EMAIL PROTECTED]> With respect to file size to printers, Bob Frost, statement that desktop printers require 720 dpi for the file size is news to me. I still think that just because the printer lays down ink at anywhere between 720 and 2880 for matte paper does not mean I need to give it a file that size. Nothing I have read anywhere else seems to support this.nor does my own printing experience support it either. The discussions i have read with respect to desktop printers, was that any data greater than 360 dpi is discarded when the image is processed by the driver ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body