CARTRIDGE AND IMAGE FORMING APPARATUS

• Main Authors: AKIBA YU, ASANUMA NAOYA
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

To provide a technique to prevent an increase in internal pressure of a toner storage chamber and a developer conveyance path.SOLUTION: A cartridge 6 comprises a frame body 16 having a storage chamber 16b that stores developer, a supply port 44 for taking in developer into the storage chamber 16b, a receiving port 40 that receives the developer, and a conveyance path 42 that guides the developer received from the receiving port 40 to the supply port 44. The frame body has a first ventiduct that is communicated with the storage chamber 16b through a first communication port 67 and a second ventiduct that is communicated with the conveyance path 42 through a second communication port 68, and the ventiducts are communicated with the outside of the frame body 16. The receiving port 40 is located on one end in a longitudinal direction of the frame body 16, and the conveyance path 42 extends from one end toward the other end in the longitudinal direction. In the longitudinal direction, the second communication port 68 is located between a first position at which the receiving port 40 is arranged and a second position at which the supply port 40 is arranged.SELECTED DRAWING: Figure 1 【課題】トナー収容室と現像剤搬送経路の内圧の上昇を抑制する技術を提供する。【解決手段】カートリッジ６であって、現像剤を収容する収容室１６ｂと、収容室１６ｂに現像剤を取り入れるための供給口４４と、現像剤を受け入れる受入口４０と、受入口４０で受け入れた現像剤を供給口４４に案内する搬送路４２と、を有する枠体１６に対し、第一の連通口６７を通じて収容室１６ｂと連通する第一の通気路と、第二の連通口６８を通じて搬送路４２と連通する第二の通気路とを有し、通気路は枠体１６の外部に連通し、枠体１６の長手方向の一端側に受入口４０が位置し、搬送路４２は、一端側から長手方向の他端側に向かって延び、長手方向において、第二の連通口６８は、受入口４０が配置される第一の位置と、供給口４０が配置される第二の位置との間に位置する。【選択図】図１