Dell Color Laser 1320c with Mac OS 10.15 Catalina: FX Docuprint Driver - Set Paper Tray option
Thank you Allan for your input which helped move toward a solution. Yes, the issue with the Dell driver is that it is 32-bit.
Using the FX Docuprint C525 A-AP v3.2 Driver software as outlined above and in the referenced link I am now printing reliably from this printer via the paper tray.
I now see where the settings with the Fuji Xerox layout including the paper tray can be saved as a Preset. Once saved it is easily reusable.