Patent ID: 7536117
Filing Date: 2009-05-19
Classification: G03G

Abstract:
1. An image-forming device comprising: a body; a developer cartridge accommodating developer therein and detachable from the body, the developer cartridge including an information member disposed, before the developer cartridge is mounted on the body, in at least one of a first position and a second position different from the first position in accordance with information with respect to the developer cartridge, the information member moving at a third position different from the first position and the second position after the developer cartridge is mounted on the body; a first detecting unit that detects that the information member is disposed at the first position; a second detecting unit that detects that the information member is disposed at the second position; and a controller that determines that the information member is disposed at the third position if neither the first detecting unit detects that the information member is disposed at the first position nor the second detecting unit detects that the information member is disposed at the second position, and judges the information with respect to the developer cartridge based on at least one of a detecting result of the first detecting unit, a detecting result of the second detecting unit, and a determining result of the controller.