Patent ID: 8737876
Filing Date: 2014-05-27
Classification: G03G

Abstract:
1. A developing device comprising: a developer cartridge configured to accommodate a developer; and a developing unit to which the developer cartridge is configured to be detachably attached, wherein: the developing unit includes: the developer cartridge includes: the first guide and the second guide are configured to, when the second guide is at the first position, guide the first guided member of the developer cartridge in the course of attaching the developer cartridge to or detaching the developer cartridge from the developing unit; when the developer cartridge is completely attached to the developing unit, the first guide receives the first guided member, and the second guide is at the second position; the developer cartridge further includes a plurality of input parts disposed at the developer frame, the input parts being configured to receive a driving force; and the developing unit further includes an input unit movable between and advanced position and a retracted position, both outside of the developer cartridge, the input unit being configured to input the driving force to the plurality of the input parts.