Is the small copper wire supporting the small iron sheet exposed on a port of the printer toner box an induction device?

Original toner cartridges have chips, which are mainly used to protect the patent rights of toner. Some printers only recognize their own chips, such as Epson. Even if the toner cartridge without a chip is replaced, it can't be printed (not only changing the powder, but the counter in the chip will lock the printer after calculating that the toner is used up). HP only reminds you, but does not prohibit printing.