| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device which stabilizes toner concentration to a transmitting direction in a developing chamber to equalize the toner concentration on a developing roller, a process cartridge, and an image forming apparatus which carries the process cartridge. <P>SOLUTION: The developing device 5Y includes: the developing roller 51Y which forms an image; a stirring chamber 54Y; the developing chamber 53Y; a second screw member 55Yb of the stirring chamber 54Y; a first screw member 55Ya of the developing chamber 53Y; a partition wall 59Y which divides each chamber, a connection port 59Ya is provided near the center in the longitudinal direction of the first screw member 55Ya of the developing chamber 53Y by notching a part of the partition wall 59Y, and a taper-shaped part 55Yb1 is provided on the tooth surface of the second screw member 55Yb of the stirring chamber 54Y near the connection port 59Ya. <P>COPYRIGHT: (C)2010,JPO&INPIT |
