On Tue, Nov 17, 2020 at 10:15 AM Dale E Sterner <sunbeam...@juno.com> wrote: > > I think you're an expert on DOS. > Can you tell me if there is a way to get DOS to detect 2 > printers on 2 different ports? > It can only see 1 printer, the second is ignored.
As already asked, how are the printers connected, and what are you trying to print *from?* IIRC, what DOS itself sees is *ports*. What is connected to the ports is the business of what will be using the connected device. I'd guess you have one printer on a Centronics parallel port, and another connected to a serial port. Hooking up to a Centronics port was the default assumption in DOS days, and stuff trying to print would send data to that port. Depending on what you are trying to send stuff to print, you may need to either go into program configuration to tell is there *is* a printer on a specified serial port, or you may simple not be able to use a second printer. If the second printer is connected to a serial port try, ECHO "Some line of text" >COMx where x is the number of the com port and see whether anything prints. It will at least tell you whether data can be sent to that port to that device. (Stuff like this is why folks migrated from DOS to other OSes.) _______ Dennis > DS > > > > > > > ******************************************************>>>> > From Dale Sterner - MS organic chemistry > http://pubs.acs.org/doi/abs/10.1021/jo00975a052 > *******************************************************>>>> > > ____________________________________________________________ > Sponsored by > https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_taglines_more > > Mississippi Health Official Has a Stark Holiday Warning > http://thirdpartyoffers.juno.com/TGL3141/5fb3e860a3ef468600e4ast03duc1 > Rubio Uses a Term Sure to Displease Trump > http://thirdpartyoffers.juno.com/TGL3141/5fb3e860cafb768600e4ast03duc2 > It's a Very Good Day for Elon Musk > http://thirdpartyoffers.juno.com/TGL3141/5fb3e860ec5fb68600e4ast03duc3 > > > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user -- _______ Dennis _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
