I was trying to print from a mac to the HP Laserjet 1022n printer.  Bonjour could see the printer, but couldn’t find a driver.

All of the blogs I found when googling recommended to plug the printer into the mac directly, let it detect it as a local printer, then plug it back into the network.  Frankly, that’s pants.

Just pick the ‘HP Laserjet 5 Series’ gimp-print driver from the drop down.  It works fine then.