Some Laser Printer have these chips too.
HP also chip some of the Laser Printers range too. The on toner cart chip records toner use. If the chip reports to the printer the toner is cart is empty the printer wont print.
OEM makers have been making chips and reset chips them for a while, but to just say buy a laser isn't that simple.
HP say its to prevent damage to the drum when printing with empty toner cart, although they probably meant damage to their consumables profit line...
And I have no doubt other makers use similar chips, I just know HP does as my laser printer has this "feature"