I tried the software a few years ago on my Win 7 using net use command, Printfil & DOSBox with my OKI C610. It would print but the correct fonts weren't printed or if they were, the margins may not have been correct from what I can remember.
In your test, are you printing from XP LPT1 to Win 8.1 USB?
My Win 7 computer is outside in my workroom, so after I get back from an appointment, I'll bring it inside and see what happens.
My iColor is set up on my Win 11 computer, and I know it prints regular documents, so no problem with that. I just haven't set it up to print wirelessly yet.
My Win 10 computer's HD is full, so I didn't try to set up the new iColor printer on it. No other laser is
I assume getting the XP to talk to the Win11 computer means putting the XP on wifi.
Many thanks again!!