# US 7,412,188 B2 · Developer cartridge structured to have a predetermined distance between a first axis and a second axis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,412,188 B2 - Document ID: US7412188B2 - Status: Granted - Kind: B2 - Application number: 11/197,545 - Filed: 2005-08-05 - Published: 2006-02-09 - Granted: 2008-08-12 - Earliest claimed: 2004-08-06 - Assignees: Brother Kogyo Kabushiki Kaisha - Inventors: Makoto Ishii; Fumikazu Sato; Isao Kishi; Takashi Shimizu - Web page: https://patentgrep.com/patent/US7412188B2 ## CPC - G03G 21/1857: {for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms} - G03G 15/087: {Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge} - G03G 15/0887: {Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity} - G03G 21/1867: {for electrically connecting the process cartridge to the apparatus, electrical connectors, power supply} - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract A developer cartridge including a frame, a developer carrying member, and an input gear member is provided. The frame includes a first side wall and a second side wall, and the first side wall and the second side wall extend in a length direction. The developer carrying member extends from the first side wall to the second side wall in a width direction perpendicular to the length direction. The developer carrying member includes a developer carrying member shaft rotatably supported by the first side wall and the second side wall, and the developer carrying member is rotatable about a first axis. The input gear member, for supplying a driving force for rotating the developer carrying member, is rotatably supported by the first side wall so as to be rotatable about a second axis. A first distance between the first axis and the second axis in the length direction is about 14.0 mm. ## Claims ### Claim 1 A developer cartridge, comprising: a frame including a first side wall and a second side wall, the first side wall and the second side wall extending in a length direction; a developer carrying member extending from the first side wall to the second side wall in a width direction perpendicular to the length direction, the developer carrying member including a developer carrying member shaft rotatably supported by the first side wall and the second side wall, and the developer carrying member being rotatable about a first axis; and an input gear member for supplying a driving force for rotating the developer carrying member, the input gear member being rotatably supported by the first side wall so as to be rotatable about a second axis, wherein a first distance between the first axis and the second axis in the length direction is about 14.0 mm. ### Claim 2 (depends on 1) The developer cartridge of claim 1, wherein the first distance is 14.0 mm. ### Claim 3 (depends on 1) The developer cartridge of claim 1, wherein a second distance between the first axis and the second axis in a thickness direction perpendicular to the length direction and the width direction is about 11.5 mm. ### Claim 4 (depends on 3) The developer cartridge of claim 3, wherein the second distance is 11.5 mm. ### Claim 5 A developer cartridge, comprising: a frame including a first side wall and a second side wall, the first side wall and the second side wall extending in a length direction; a developer carrying member extending from the first side wall to the second side wall in a width direction perpendicular to the length direction, the developer carrying member including a developer carrying member shaft rotatably supported by the first side wall and the second side wall, and the developer carrying member being rotatable about a first axis; and an input gear member for supplying a driving force for rotating the developer carrying member, the input gear member being rotatably supported by the first side wall so as to be rotatable about a second axis; wherein a first distance between the second axis and a surface of the developer carrying member furthest from the second axis in the length direction is about 23.7 mm. ### Claim 6 (depends on 5) The developer cartridge of claim 5, wherein the first distance is 23.7 mm. ### Claim 7 (depends on 5) The developer cartridge of claim 5, wherein a second distance between the first axis and the second axis in a thickness direction perpendicular to the length direction and the width direction is about 11.5 mm. ### Claim 8 (depends on 5) The developer cartridge of claim 5, wherein a third distance between the first axis and the second axis in the length direction is about 14.0 mm. ### Claim 9 (depends on 5) The developer cartridge of claim 5, further comprising a first window provided in the first side wall and a second window provided in the second side wall, the first window and the second window being aligned so as to face each other in the width direction; wherein a fourth distance between the first axis and a substantially central portion of the first window in the length direction is about 37.5 mm. ### Claim 10 A developer cartridge, comprising: a first side wall and a second side wall extending in a length direction; a developer housing section for housing a developer, the developer housing section extending from the first side wall to the second side wall in a width direction perpendicular to the length direction; and a developer supplying section for carrying the developer from the developer housing section to a photosensitive member, the developer supplying section extending from the first side wall to the second side wall in the width direction; wherein: a first thickness of the developer housing section in a thickness direction perpendicular to the length direction and the width direction is about 45.8 mm; and a second thickness of the developer supplying section in the thickness direction is about 45 mm. ### Claim 11 (depends on 10) The developer cartridge of claim 10, wherein the first thickness is 45.8 mm and the second thickness is 45 mm.