The HP Laserjet M209dw is practically a "GDI" Printer. Not a "Postscript" or "PCL" printer.
(see: https://www.druckerchannel.de/techinfo.php?m[]=5681)

The languages it speaks are probably only supported by the manufacturer's drivers as usual
with GDI Printers. So it will probably not print with MorphOS unfortunately.
What we need are printers which speak Postscript or PCL mainly. Some EPSON ESC/PR and Samsung CLPs could work too.
Look here for details : https://library.morph.zone/Print_System
There are some brother "PPD" drivers too, as I read in a previous post.

This could be helpful as well :

https://www.morphos-storage.net/?id=1588365

regards ....