Original setup-Dos pc printing to HP Laserjet 4plus via lpt1 to parallel port on printer. This works fine.
However I am trying to put a data switch so I can add a Windows 3.11 machine to print to the HP4plus as well.
I have setup the data switch and connected it to the parallel port on the printer and have data communication cables from the swith to LPT1 on both PCs.
However after I have done this neither PCs print and message comes up with printer not connected on both PCs.
I realise that switches do not support bidirectional printers, but what changes do I need to make to allow both PCs to print?