IMAGE FORMING APPARATUS

摘要

An image forming apparatus includes: a body of the image forming apparatus; and a cartridge installable with respect to the body, wherein the cartridge includes a developer accommodating portion accommodating a developer; a developing portion supporting a developer holding member holding the developer thereon; and a shutter configured to be movable between an open position at which the shutter opens a communication port and a close position at which the shutter closes the communication port. The body includes a detecting section detecting a state of the cartridge which changes as the cartridge is used, and a judging section judging whether or not a cartridge exchange timing for exchanging the cartridge has arrived, based on the state of the cartridge detected by the detecting section; and the shutter moves to the close position under a condition that the judging section judges that the cartridge exchange timing has arrived.

主权项

1. An image forming apparatus comprising:
a body of the image forming apparatus; and a cartridge configured to be installed with respect to the body, wherein the cartridge includes:
a developer accommodating portion configured to accommodate a developer;a developing portion configured to support a developer holding member configured to hold the developer thereon; anda shutter configured to be movable between an open position at which the shutter opens a communication port allowing the developer accommodating portion to communicate with the developing portion, and a close position at which the shutter closes the communication port, the body includes:
a detecting section configured to detect a state of the cartridge which changes as the cartridge is used; anda judging section configured to judge whether a cartridge exchange timing for exchanging the cartridge has arrived, based on the state of the cartridge detected by the detecting section, and the shutter is configured to move to the close position under a condition that the judging section judges that the cartridge exchange timing has arrived.