Please use the CUPS driver for macOS 10.14 with Use Generic Printer Feature checked as follows:
Download and install the printer driver for macOS 10.14 onto your macOS 10.15 computer from the Downloads section.
* Full Software Package is also available.
Click [System Preference] - [Printers&Scanners].
Make sure the model you are using is chosen, and then click [Options&Supplies].
Check the box for [Use Generic Printer Features].
Click [OK].
If your question was not answered, have you checked other FAQs?