| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve agitating and mixing property of toner to an existing developer of a developer storing chamber in simple constitution. <P>SOLUTION: A developing device comprises a developing unit 1 arranging a developer agitating and conveying member 3 in the developer storing chamber 2 and a toner supply chamber 5 arranging a toner conveying member 7 in a supply chamber 6 and communicating with the toner supply chamber 6 to the developer storing chamber 2 of the developing unit 1. The toner supply unit 5 is positioned more downward than a surface position of a developer G stored in the developer storing chamber 2 by a lower end position, and includes a toner supply openings 8 capable of supplying toner in an arrow α direction to a developer storing chamber 2 and a developer receiving inlet 9 provided at the upstream side of a toner conveying direction in a part facing the toner supply opening 8 and capable of receiving a part of the developer from the developer storing chamber 2 in an arrow γ direction. A process cartridge including the developing device and an image forming apparatus are provided. <P>COPYRIGHT: (C)2007,JPO&INPIT |
