One question... If one sends the printer a 720 dpi file, does it not alter the file to create the dithering patterns, etc? In other words, does providing a 720 dpi file prevent up and down sampling and the "damage" the printer driver/spooler might cause to the image file?
Art Austin Franklin wrote: > Hi Preston, > > >>Bob Frost (I believe it was) advocated sending 360ppi or 720ppi files to >>a 720dpi desktop inkjet printer. It certainly makes intuitive sense that >>on a 720dpi printer, a 720ppi file would work best. > > > Why you want to send the Epson, specifically, desktop printers 720 is > because they interpolate/decimate the image you send it TO 720PPI (not DPI) > prior to dithering, using a rather rudimentary interpolation, and perhaps > horrible decimation, method. If you sent it the image, using a better > "scaling" (interpolation or decimation) method, theoretically, you could get > a better resultant image printed. > > It does make sense, as you say, that the 720 is an "even multiple" of the > printer DPI resolutions of 360/720/1440/2880...and certainly that is one of > the reasons they rescale the image to 720...but that doesn't mean it'll > print at 720, it will print at any of it's native resolutions using the 720 > prior to dithering. > > >>Are there some >>other sources (besides Members Magic Eyes) that cite this? > > > This was stated by Epson that they resample to 720 for the desktops and 360 > for the large format printers. > > Regards, > > Austin > ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body