Here is a germ of an idea....
I'm not exactly sure it could be done, but if it's possible, it should work on ANY modern printer. The RPi would have to do the heavy lifting, so I don't even know if what I envision is even possible.
A Brief outline
1) A "TIPIAPP" would be running 100% of the time to intercept anything sent to "PIO" or maybe
just toggled on and off in the TIPI CONFIGURATION for use as needed. This would require an update
to that program.
2) Upon receiving receipt of data, the "TIPIAPP" it would convert the page into PDF format using the
LINE FEED command as the cutoff for a single page(s).
3) Once a page is completed page. the file would be erased and the print cycle would repeat until no more data is forthcoming.
I have no clue if is technically possible or feasible. But anyone using a TI-Writer variant, TI-Artist or anything else
could get some printing action. done.