Patent ID: 9500992
Filing Date: 2016-11-22
CPC Classification: G03G

Claim Text:
1. A developing device comprising: a housing to store a powder; a developing roller to hold the powder; a supplying roller to supply the powder to the developing roller; a regulator to regulate the powder held by the developing roller; a powder conveyer to convey the powder for image forming, the powder conveyer including a first powder storing chamber to store the powder separated from the developing roller; and a second powder storing chamber disposed above the first powder storing chamber to store the powder to be supplied to the developing roller by the supplying roller, wherein the first powder storing chamber is divided into a first mixing chamber and a second mixing chamber, the first mixing chamber includes a first rotating member to convey the powder in a first direction, the second mixing chamber includes the powder conveyer to convey the powder in a second direction different than the first direction, the developing device is a one-component developing system to develop, an upstream end part of the first mixing chamber in the first direction and a downstream end part of the second mixing chamber in the second direction are in communication by a first communicating path, a downstream end part of the first mixing chamber in the first direction and an upstream end part of the second mixing chamber in the second direction are in communication by a second communicating path, and a toner supplying opening to supply the powder is connected to the first communicating path.