I have been asked to create a b/w printout that will be used as a master for photo-copies of biographies. I have hi-rez b/w photos to include. The hi-rez photos are muddy when printed to a 300 dpi copier. I am used to line screens to adjust the photos. Is there a plug-in or photo alteration that I can use to 'screen' the photos so that I can print a master that will work on a 300 dpi copier? Should the master also be printed on a 300 dpi?

Thanks, Dan