Error -34 when trying to print

With OS 9.9.2 all of a sudden I can't print to my HP 4550 printer. I get a -43 or -34 error. This has been working for years and nothing has changed that I can see would make any difference. It works fine with another IP Printer, but not with this one. It doesn't make sense.

Have checked everything that I have seen in the community. Spent hour researching and nothing comes up with these errors.

Have my accounting system still on this machine, because there is no other affordable alternative and the one I have meets our needs.

Any thoughts. Out of time and not much hair left