| 摘要 |
PURPOSE:To miniaturize a cartridge by avoiding driving force on the part to be driven of a cartridge from being concentrated on only one part, and to enhance cost-saving in maintenance by independently exchanging toner and the cartridge. CONSTITUTION:This cartridge is provided with a photoreceptor drum 1 having a means to be driven to rotate, a developing part 10 having the means to be driven to rotate, a cleaner part 90, a toner storage part 11, a toner feeding part 30a, a supporting member 5 for the developing part 10, and a spring 8 pressing the developing part 10 to the drum 1. The supporting member 5 supports the developing part 10 so as to turn centering around a fulcrum 7 in the toner sotrage part 11, and the fulcrum is arranged at a position where the driving force acts in the direction in which the developing part 10 is separated from the drum 1 when the developing part 10 and the drum 1 are driven. Then, the image forming device to/from which the cartridge is freely attached/ detached is constituted by providing a driving means for driving to rotate the drum 1 and the developing part 10. |
