Why does the printer toner cartridge have a printing limit? Is it purely for economic benefit? If so, does it violate laws and regulations? Does it harm the interests of consumers?

The most important thing is for economic benefits. On the other hand, there is no upper limit for printer toner cartridges. If a toner cartridge takes a long time to print, the effect will not be good. Some people will say it's the printer. Manufacturers also have this consideration! Several technicians know how to clear the chip count! Some things are used to waste!