Image forming apparatus configured to set an initial value of an amount of recording material remaining in a containing unit, associated control method, and storage medium

摘要

When a toner cartridge is mounted to an image forming apparatus, if the toner cartridge is new, the image forming apparatus sets a value calculated from cartridge capacity as an initial value of a toner remaining amount. If, when the toner cartridge is mounted to the image forming apparatus, the toner cartridge is not new, the image forming apparatus sets a value calculated from a page count number as the initial value of the toner remaining amount. Furthermore, when the toner cartridge is mounted to the image forming apparatus, the image forming apparatus acquires a sensor value, and if the acquired sensor value is an indefinite value, the image forming apparatus determines an alternative value according to sensor ability as the initial value of the toner remaining amount.