Printer still not working after installing?

That message belongs to the old printer entry, which still uses the maker's Intel-only driver. The installer adds a new entry next to it, named after the model and ending in “Apple Silicon”. In System Settings → Printers & Scanners, remove the old entry (select it, click −), then print to the “Apple Silicon” one. If there is no such entry, restart the Mac once, unplug and re-plug the printer, and check the next question.

Search your model on the home page first: if it isn't supported, no entry will appear. If it is supported and connected over USB, restart the Mac once and unplug / re-plug the printer, and connect it directly rather than through a hub or dock. Then add it in System Settings → Printers & Scanners → Add, with Use: Select Software… and the entry for your model ending in “Apple Silicon”.

macOS shows this when you add a printer it has no driver for. Install this package first, then add the printer again in System Settings → Printers & Scanners → Add, choose Use: Select Software… and pick the entry for your model ending in “Apple Silicon”.

Older printers don't support AirPrint. On your Mac, add them with Use: Select Software… and the “Apple Silicon” entry, after installing this package. To print from an iPhone or iPad, turn the printer on in Print from iPhone & iPad, which adds AirPrint through your Mac, even over USB.

The installer only sets up USB printers by itself. For a network printer, add it in System Settings → Printers & Scanners → Add with Use: Select Software… and the “Apple Silicon” entry. If the printer doesn't appear, connect it to the same network as the Mac and switch it off and on.

Sometimes, and only for now. Reinstalling Rosetta makes some old printer drivers work again after you delete and re-add the printer; others stay marked “Software Incompatible”. Apple ends Rosetta for apps in macOS 28, so the maker's old driver will stop again then. This driver doesn't need Rosetta.

Check that the queue uses your exact model: a similar model's driver can send data the printer silently ignores.

Open an issue on GitHub (https://github.com/theshiver/apple-silicon-printer-drivers/issues) with your printer model, how it's connected (USB or network) and your macOS version. Terminal steps for advanced users are in the README on GitHub.