Driver options for Okidata C5400n when running OS 11

Apr 6, 2018 12:04PM PDT

Getting this message on my Oki 5400n:
The printer software was installed incorrectly. Please reinstall the software for this printer or contact the manufacturer for assistance.

Have restarted computer, printer, & router to try to rectify. Have tried to reinstall (per alert). Nothing seems to be working.

I'm on an iMac i7, running OS 10.11.6

This printer ran flawlessly up through OS 10.10, only stopping in its tracks once I did the 10.11 update.

Looking to see if anyone has a suggestion.


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