Image forming apparatus, cartridge, and apparatus main unit

摘要

A magnet is arranged on an RFID tag to be attached to a cartridge. A Hall element is arranged on a printer-side RFID board in a position corresponding to the magnet. When the cartridge is mounted, a printer-side RFID communication section identifies whether or not the mounted cartridge is a certified product according to classification information stored on the RFID tag and a presence/absence of a detection signal from the Hall element.