Late 2013 27" iMac. MacOS 10.15.3 Catalina. Printer is a Canon LBP6230dw laser. I can not get anything to print. I'm trying to print a simple PDF from Preview. I have reset the printing system, uninstalled the printer, reinstalled the printer, restarted both the iMac and printer, downloaded the most current driver - all to no avail. I get "filter failed" every time I try to print. Any advice?