CARTRIDGE AND METHOD FOR MANUFACTURING CARTRIDGE

• Main Author: NONAKA FUMITO
• Format: Patent
• Language: English; Japanese
• Published: 11.04.2016
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To provide a cartridge which is easily assembled and has high productivity.SOLUTION: A cartridge includes: a cartridge frame body having a developer storage portion; an image carrier rotatably provided on the cartridge frame body; an end seal which is provided on the cartridge frame body and comes in contact with the end in the longitudinal direction of the image carrier; cleaning means which acts on the image carrier; a seal portion which is provided on the cartridge frame body and comes in contact with the end in the longitudinal direction of the cleaning means; a thin plate member that is provided in the longitudinal direction, and of which one end in a direction crossing the longitudinal direction comes in contact with the image carrier, and that prevents leakage of a developer from the developer storage portion: and a resin member which fixes the thin plate member and the cartridge frame body. The seal member is injection-molded with a first sealant which is a molten resin, and the resin member is injection-molded with a second sealant which is a molten resin different from the first sealant. The seal member and the resin member come in contact with each other between the cartridge frame body and the thin plate member, and are integrally formed.SELECTED DRAWING: Figure 8 【課題】 組み立て易く、生産性の高いカートリッジを提供する。【解決手段】 現像剤収容部を有するカートリッジ枠体と、カートリッジ枠体に対して回転可能に設けられた像担持体と、カートリッジ枠体に設けられ、像担持体の長手方向の端部に当接する端部シールと、像担持体に対して作用するクリーニング手段と、カートリッジ枠体に設けられ、クリーニング手段の長手方向の端部と当接するシール部材と、長手方向に沿って設けられ、長手方向と交差する一端が像担持体と当接し、現像剤収容部から現像剤の漏れ出しを防止する薄板部材と、薄板部材とカートリッジ枠体を固定する樹脂部材と、を有する。シール部材は溶融樹脂である第１シール材、樹脂部材は第１シール材と異なる溶融樹脂である第２シール材で射出成形され、シール部材と樹脂部材は、カートリッジ枠体と薄板部材の間で接触し、一体的に形成される。【選択図】 図８