CONVEYING APPARATUS, DEVELOPING APPARATUS, AND IMAGE FORMING APPARATUS

• Main Authors: SEKURA YUKI, HOSHINO YUTA, MAEDA NAOYA, ONISHI NAOKI, OHASHI SHIRO
• Format: Patent
• Language: English; Japanese
• Published: 23.05.2019
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

To improve the accuracy of detecting concentration, compared with the case where the concentration is detected without vibrating developer.SOLUTION: An agitation conveying member 143 for conveying agitated developer is arranged in a device housing 140. In the device housing 140, a toner concentration sensor 170 is arranged, as one example of a concentration detection unit for detecting toner concentration of developer housed in the housing 140. An upper vibration member 310 is arranged upstream JR in developer conveyance direction S of a detection position of the toner concentration sensor 170. The upper vibration member 310 extends toward the agitation conveying member 143 from a top surface 140B1, which is one example of an inner surface of an upper housing 140B. The upper vibration member 310 is arranged between conveyance blades 143B of the agitation conveying member 143, to constitute a vibration member vibrating along with rotation of the agitation conveyance member 143.SELECTED DRAWING: Figure 4 【課題】現像剤に振動を与えずに濃度を検出する場合と比して、濃度検出精度を向上すること。【解決手段】装置ハウジング１４０の内部には、現像剤を攪拌しつつ搬送する攪拌搬送部材１４３が配置されている。また、装置ハウジング１４０の内部には、当該ハウジング１４０の内部に収容された現像剤のトナー濃度を検出する濃度検出部の一例としてのトナー濃度センサー１７０が設けられている。さらに、トナー濃度センサー１７０の検出箇所より現像剤の搬送方向Ｓの上流側ＪＲには、上部振動部材３１０が設けられている。上部振動部材３１０は、上部ハウジング１４０Ｂの内面の一例である天面１４０Ｂ１から攪拌搬送部材１４３側へ延び出している。上部振動部材３１０は、攪拌搬送部材１４３の搬送羽根１４３Ｂ間に配置され、攪拌搬送部材１４３の回転に伴って振動する振動部材を構成する。【選択図】図４