ProComm Plus 4.8 "Cannot open printer. Printing aborted."

“Cannot open printer. Printing aborted.”

This error is a constant headache for me. I have approx 10 users who occasionally get this error. I have followed the instructions on Document ID: 1998120110417026. It did not work. I go through the printer setup via the File menu. Nothing changes. I have reinstalled this app so many times. There has got to be a better solution.