If yes, what other product categories is this applicable?
And I’m sure printers are probably a minefield of patents.
So it makes it not impossible for a new manufacturer to incorporate interface electronics with a core from an experienced manufacturer. The most difficult part might not be the engineering, but getting one of the old line print companies to do business at some reasonable cost with a smaller startup company.
A standardized control board (imagine if it were something like an RPi), with modular carriage (available in several sizes, including capable of 11x17” or A3), with changeable print heads (CMYK, or just a massive black, or hell, pen plotter).
The mistery is why the printers market get away with it.
Printers are basically sold at a loss.
A more apt analogy would be selling you a laundry washer/dryer for $100 but only accepting name brand detergent pods.
Or, what Keurig tried to do to coffee, though even they sell the machines above the printers margins.
Printers get away with it because unlike your car, laundry, or coffee maker, most people don't actually use the printer very often and can't be bothered to raise a public outcry over it.
There are a handful of companies that hold all the patents necessary to build a printer. If you try to build one from scratch "taking inspiration" from consumer ones you will be sued into oblivion
Indeed, that's the goal, in part, of the patent system to make technologies available in return for a time-limited monopoly.