Image forming device

摘要

An image forming device includes a photosensitive unit, a developer cartridge, and a developing device. The photosensitive unit includes a photosensitive body. The developer cartridge accommodates developer therein and has a supported portion supported by the photosensitive unit. The developing device is disposed between the photosensitive unit and the developer cartridge and is supported by the photosensitive unit and is pivotally movable about the supported portion. The developing device includes a developer carrying member carrying the developer thereon. The developer carrying member is movable, in accordance with the pivotal movement of the developing device, between a contact position at which the developer carrying member is in contact with the photosensitive body and a separate position at which the developer carrying member is separated from the photosensitive body.

主权项

1. An image forming device comprising:
a photosensitive unit including a photosensitive body; a developer cartridge accommodating developer therein and having a supported portion supported by the photosensitive unit; a developing device disposed between the photosensitive unit and the developer cartridge and supported by the photosensitive unit and pivotally movable about the supported portion, the developing device including a developer carrying member carrying the developer thereon, the developer carrying member being movable, in accordance with pivotal movement of the developing device, between a contact position at which the developer carrying member is in contact with the photosensitive body and a separate position at which the developer carrying member is separated from the photosensitive body; and a reading unit configured to read a test pattern, wherein the photosensitive body comprises a plurality of photosensitive members juxtaposedly arrayed, the developer cartridge and the developing device being provided in one to one correspondence with the photosensitive member, wherein the photosensitive unit and the developing device constitute an image forming unit, wherein the image forming device further comprises:
a main frame providing an accommodation space for accommodating the image forming unit, the image forming unit being movable between an accommodated position in which the image forming unit is positioned in the accommodation space and a pulled out position in which the image forming unit is displaced from the accommodated space; andan emitting unit provided in the main frame and configured to emit a laser beam toward each photosensitive member; and wherein each developer cartridge is provided with a blocking member movable between a blocking position at which the laser beam directed toward each photosensitive member is shut-off and a transmitting position at which the laser beam is allowed to reach each photosensitive member, and wherein the image forming device further comprises:
a determining unit configured to determine whether or not the blocking member is positioned in the transmitting position based on the test pattern read by the reading unit.