Then you can re-enable it if you prefer later.
https://support.hp.com/us-en/document/ish_2029438-1929621-16
The printer disassociated from my HP account, its e-mail address is removed, all on-device "printables" functions (which is dropbox, google drive, Scan2Mail, QuickForms at this point) removed too. It completely became a dumb, networked printer with an LCD screen (which you can setup your printer and whatnot).
I'm almost sure that it addresses concerns of the GP, because the device became completely unaware that there's something called an HP account, yet stayed fully functional as a networked inkjet MFP, incl. HP's smart app.
BTW, if your printer is in working order, and discoverable over local network, you can use the smart app without any account. Scanning and printing works, at least.
I re-enabled the services and the functions I mentioned as deprecated started to work again. I think something broke configuration-wise while HP was migrating services.
OKI's toner is polymer, so in addition to looking great on paper, you can print on "weatherproof laser labels" and they will last for years outdoors. (Outdoors, colors eventually fade, especially red and blue, but the blacks are still very readable on some devices I've deployed after over a decade outside. Not bad for what were intended to be temporary prototype labels...)
On the phone it was just discovered by AirPrint and Just Worked™
They used to sell a 6000 page cartridge as their low end offering in this class of printers. This is what's its like to be a boiled frog.
IIRC, that thing is somewhere around office, and we still use its demo toner. It's a low duty device too, but well.
In other words, these devices are still there, but it's the next bigger class with respect to the Samsung printer I have. Also, Samsung has a very nice econoprint mode which injects tiny dots inside the letters which saves 20%-50% depending on the font and content you print, and there's no day and night difference in terms of the print quality between two modes.
Why not connect to a Raspberry pi or an Orange Pi zero and share it via CUPS? CUPS will make it a mDNS enabled, "driverless" printer, which can be used from any device (Windows, macOS, Linux, iOS, Android and your toaster)?
If you want wireless, don't use OrangePi Zero (1) though. Its wireless is not supported well under Linux.
To be able to scan your documents to your phone directly.
> Subscription may be required; subscription may not be available in all countries
For some advanced, Prizmo-like scan features and OCR which are probably cloud based.
> Get up to 5,000 pages or up to 2 years of pre-filled toner
Considering printers at same size provides ~3000 pages, that's good. 2 years is probably printing n 5% filled office documents every day or so.
> HP account required for full functionality.
For HP smart app and web-based functionality (like mail2print) to work, not the printer.
HP is still the best manufacturer which provides a complete driver stack which provides same quality printing in Linux. CUPS supports them in "driverless" fashion now, too.
I use an old HP 4515 web printer, which is the first generation of these devices. Many embedded web features are deprecated (like printables), but it still works great as a wireless, mobile enabled MFP.