I am assuming this particular printer has the serial interface. All my manuals are packed away in prep for a move, but when I get unpacked on Tuesday I'll look that up for you. Dave Copeland JSI Data Systems. Nepean Ontario. "Buddy Z" <[log in to unmask]> wrote in message news:slesop7ujev30@corp.supernews.com... > Hello, > Does anybody know how to set up HP 2563A (a very old dot matrix printer) > for software flow control? > Any help would be greatly appreciated. > > Regards, > > Buddy Z > >