I got a laser printer. Thanks to youtube videos I set it up successfully both in WiFi Direct mode (where the printer also acts as the WiFi network) and and connected to the house WiFi. Then I did it again, and the WiFi Direct address/pwd is stable, yay! Quick connection at conventions!
What it _doesn't _do is remember the house WiFi password, which is annoying because the house password is long and has to be entered on the printer solely with up and down arrows. But oh well nothing is perfect, and quick connection at OVFF is more important.
Hurray for youtube videos; this would have been much harder without watching that friendly person with the Indian accent walking the viewer calmly through the process.