Patent ID: 9207614
Filing Date: 2015-12-08
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a photosensitive member; an exposure unit configured to expose the photosensitive member to form an electrostatic latent image on the photosensitive member; a development unit configured to form an image corresponding to image data by developing the electrostatic latent image formed on the photosensitive member; a mounting portion to which a container is mountable, the container configured to contain toner; a drive unit configured to rotate the container mounted to the mounting portion for replenishing the toner in the container to the development unit; an output unit configured to output a predetermined signal when a predetermined portion of the container mounted to the mounting portion is detected, the predetermined portion being arranged in the rotation direction of the container that is rotated by the drive unit; a determination unit configured to determine whether the container is mounted to the mounting portion according to whether the predetermined signal is outputted from the output unit; a decision unit configured to decide a toner replenishing amount that should be replenished to the development unit; a controller configured to control the drive unit so as to execute a detecting operation that rotates the container in a case where the determination unit does not determine that the container is mounted to the mounting portion; and a correction unit configured to correct the toner replenishing amount based on the predetermined signal output by the output unit while the detecting operation is executed.