Patent ID: 9152086
Filing Date: 2015-10-06
Classification: G03G

Abstract:
1. A toner cartridge mountable in an electrophotographic image forming apparatus provided with a developing device, comprising: a toner storage container including a toner storage section for storing a toner in an interior thereof, a toner discharge section located on a vertically lower side of the toner storage section in a mounted state in the image forming apparatus, the toner discharge section having a toner discharge port for toner discharge, and a communicating port forming section which forms a communicating port for guiding a toner stored in the toner storage section toward the toner discharge section; a toner stifling member which stirs a toner stored in the toner storage section, including a toner discharge member which conveys a toner which has been guided from the toner storage section to the toner discharge section through the communicating port toward the toner discharge port, including a differential member including a base part composed of an annular plate body, and a plurality of bearing projections which protrude radially inwardly from an inner peripheral surface of the base part, the differential member being provided with through holes formed between the bearing projections, the bearing projections being rotatably supported in contact with an outer peripheral surface of the first rotating shaft; an abutment member protruding from the outer peripheral surface of the first rotating shaft, against which the plurality of bearing projections abut under a rotation of the differential member, the abutment member being inserted in the through holes; a rotation transmitting portion which transmits a rotation of the differential member to the second rotating shaft, wherein the rotation transmitting portion is configured such that the second rotating shaft always begins to rotate at essentially the same time that the differential member begins to rotate; and a rotationally driving section which imparts a rotating force to the differential member.