I don't think you want Apple to make printers. They did in the past and they were quite good, but now there are similar offerings from others. One note: unless you have a good reason to buy an inkjet, don't. Get a laser. (Yes, they are more expensive intially--sometimes. But they will always save you money in the long run. I bought a Brother HL-2140 on sale for about $75 last year, and I'm still on the first toner cartridge.)
However, let's suppose the Apple of today made printers. Chances are it would have no buttons, so you'd be hard pressed to turn it on or off without pulling the power, resume after an error, print a configuration page, or (if it's networked) set it up without the help of a computer. There is a small chance that they won't even let you open the printer, so if you needed to replace the toner (or, gasp, ink), you'd have to take it in and they will "replace" it (read: replace the whole printer with an equivalent refurbished model) for a slight fee. Or, if they do let you open it, they'd sell Magic Toner and Magic Paper for significantly above the industry average. 😀
Just sayin'.