| 摘要 |
<P>PROBLEM TO BE SOLVED: To stably electrify a photoreceptor drum and also to improve the maintability of an image forming apparatus. <P>SOLUTION: In an electrifying device 56, an electrifying roller 69 coated with electrification accelerating particles 72 by an applicable roller 70 is made to abut on the photoreceptor drum 12. An electrifying device 55 is separately provided in addition to it, so that electrification is stabilized. A drum developing cartridge 2 is constituted by integrally assembly the photoreceptor drum 12 and a developing device 16 into a housing 15. The drum developing cartridge 2 is constituted so as to be freely attachable/detachable to/from an image forming apparatus main body M, so that is can be easily replaced by opening/ closing a door 65. <P>COPYRIGHT: (C)2003,JPO |
