| 摘要 |
PROBLEM TO BE SOLVED: To provide a one-component developing device for maintaining excellent image quality by reducing toner deterioration in a developing unit as much as possible even when the number of developing units in use is much larger than before, and provide an image forming apparatus and a process cartridge each equipped with the developing device. SOLUTION: The developing device 20 is characterized in that a supply roller 22 and a developing roller 21 rotate in the same direction and the axial linear pressing force of a doctor roller 23 to the developing roller 21 at a doctor nip part N2 is 20 to 50 [N/m]. COPYRIGHT: (C)2006,JPO&NCIPI |
