I'm not sure that approach would be sustainable. Printer manufacturers are in the business of loss leading as far as I can see. They probably don't make any significant profit on the printer itself, judging by what I've paid for printers in the last few years. The price of the printer is subsidised by the projected profits from the ink/toner. And they are not insignificant, I agree. But in the current market, selling printers at an unsubsidised price probably won't work commercially. We've gotten used to cheap printers and expensive ink/toner I guess and it's difficult to come off them. There'[s no such thing as a free lunch etc..
A Color Laserjet can be bought for roughly $450. A high-capacity replacement for all 4 toner cartridges will cost just over $700. That makes my Laserjet disposable - once the toners are nearly empty, I will sell it on eBay and replace mine with a new one.
Be aware most printers come with "starter cartridges" which are much smaller.