You could try the Gutenprint drivers.
https://gimp-print.sourceforge.net/MacOSX.php
Latest version (in the right column), version 5.3.3.
You can also try the generic drivers built into macOS. First, get the IP address your printer is using, if it's connected via Ethernet.
Open System Settings > Printers & Scanners. Click the Add Printer… button. If the printer is a straight USB connection, it should appear under the first tab. If it's using an IP address, click the center tab and enter its address. I picked a Xerox C405 printer below, but it's the same idea.

Choose Line Printer Daemon - LPD. Replace Name with something logical (the obvious being Xerox 6022). The most important part with either type of connection is to choose the Generic PCL Printer, or Generic PostScript Printer. Try both to see which may work.