>About Xerox, one of the first jobs I had in a print shop was making copies >on one of the first Xerox machines. It was nothing more that a tray with >plastic beads and toner and I rolled it back and forth to deposit toner on a >charged metal sheet. Dropping the paper onto the metal sheet and fusing it >without any smudges was the tricky part.
This was Haloid Xerox Corporation's first major product and preceded the introduction of the revolutionary 914 copier, the first plain-paper xerographic copier, by several years. The paper "plates" made as described above were mounted on an Addressograph-Multigraph Multilith(R) 1250 offset printing press, and quite a few good copies could be made thereby. This Haloid process was rendered obsolete by a 3M presensitized aluminum plate system, which required an arc lamp for plate exposure, and a film negative. Just to show that things come full-circle, the 3M system required a film negative, and a Linotype(R) Linotronic(R) L200P (about 1540 dpi) or L300P (about 2540 dpi) could produce negatives for the 3M (or competitive) system directly from a Mac, the usual server for a Linotronic. Now, "direct to press" is used, with no platemaking being required at all. Numerous job shops have Original Heidelberg (or competitive) direct-to-press systems, either one, two or four color, and several newspapers are printed using direct-to-press technology. Again with respect to the Haloid system, the toner could be touched-up before fusing, and normally some touch-up was required. -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
