I believe some printers have been caught getting updated from the host pc via the same channel as any other print job. usb, net, doesn't matter.
So you also want to make sure you're using a generic driver and not the current "hp smart" bs drivers they've been pushing for several years. Possibly tough to do on a new enough printer, maybe no generic driver available especially for scanning unless you're using linux.
Amazingly they still offered old-style drivers for my M281fdw for my wife's win10 machine, which cleared up a problem where the printer would crash and reboot every time she sent a print job, meanwhile I had no problem from linux. Ripped out all the hp smart drivers and put in the basic ones and it never did it again, over 2 years so far. But I have to assume that they just don't even offer classic style drivers for new models by now.
I like your drivers point. I guess I could disable the printer's wifi and USB it to a rpi4 acting as a printer server.
Ironically this new printer works great with my 20 year old SGI Fuel (which I lovingly keep), while I cant figure out how to make it work with my Plus4 (which Im keeping).
I actually really like this printer. Prints fast, great detailed settings available on a little webserver, it seems every single old printer protocol is supported. All for less than $400. Its the first HP product Ive enjoyed since I got my first CD burner in '99.
I just really distrust anything Corina has touched.
So you also want to make sure you're using a generic driver and not the current "hp smart" bs drivers they've been pushing for several years. Possibly tough to do on a new enough printer, maybe no generic driver available especially for scanning unless you're using linux.
Amazingly they still offered old-style drivers for my M281fdw for my wife's win10 machine, which cleared up a problem where the printer would crash and reboot every time she sent a print job, meanwhile I had no problem from linux. Ripped out all the hp smart drivers and put in the basic ones and it never did it again, over 2 years so far. But I have to assume that they just don't even offer classic style drivers for new models by now.