| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device capable of preventing an abrupt change of toner charging on a developing roller from occurring due to penetration of toner remaining above a regulating member of the developing device into a nip, to provide a process cartridge, and an image forming apparatus. SOLUTION: In the developing device 13 using a one-component developer, the one-component developer is replenished to a supply roller 133 by natural movement from a developer storage part 138, and the bottom part of the developing device 13 has such dimensions as to allow the supply roller 133 to rotate, wherein an embedding member 135 for embedding a space above the regulating member 134 is disposed in order to prevent the toner existing above the regulating member 134 for making the toner homogeneous from penetrating to the nip formed between the developing roller 132 and the supply roller 133. COPYRIGHT: (C)2009,JPO&INPIT |
