Image forming apparatus configured to perform authentication of a developer cartridge attached thereto

Abstract

An image forming apparatus includes a sensor configured to detect an object within a predetermined range, a storage unit that stores information about the detected object, and a controller. The controller is configured to control the sensor to detect the object when the image forming apparatus is in a first mode, and in response to the detection of the object, store the information indicating that the object is detected. In response to transition from the first mode to a second mode in which power consumption is higher than the first mode, when the information indicates that the object is detected, the controller performs authentication of a developer cartridge attached to the image forming apparatus, and when the information does not indicate that the object is detected, the controller skips the authentication of the developer cartridge.

Dependencies are inferred from the claim text.