> They're all frustrating plastic things sitting in the corner.
> There's plenty of innovation left.
> Lists a bunch of features that either already exist or have no practical application
You're telling me there's lots of meat on the bone for innovation but then I'm not actually seeing anything that hasn't already existed that would make them not the same frustrating plastic things in the corner they are today.
Maybe it's just a marketing thing? I imagine most people wouldn't know a lot of the printers at Best Buy support print by email, clearly you didn't already know that was a thing. Stuff like IPP and AirPrint makes printing to a random network printer stupid simple without needing additional apps or whatever, but it seems every time I print from my phone it blows peoples' minds that I didn't have to plug in a cable. Other than HP consumer printers, generally printers I've used in at least Windows and Linux just work. Plug them into the network or add them to the WiFi, and then every computer in the home can see it and it works without needing to install 500MB of drivers and additional software.
Maybe not every product market has obvious innovations that are useful to consumers. Maybe sometimes things get mature. I'm not seeing a lot of innovation in forks or whatever. Generally, printers these days are pretty reliable. You can get them pretty dang tiny if you want. They can have pretty insane resolution for most consumer needs. They can talk wirelessly with highly standardized APIs that pretty much any computer or phone or tablet can talk.