| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a support fixing structure for processing means free from damage thereto and able to be disassembled easily, and an image forming apparatus, a process cartridge and a developing device, which have this structure. <P>SOLUTION: The support fixing structure includes: a frame body 11d rotatably supporting a photoreceptor drum 7; a bearing member 80a supporting a charging roller 8; a compression spring 71 used for energizing the charging roller 8 against the photoreceptor drum 7; and a support fixing part 11f slidably supporting the bearing member 80a parallel to the energizing direction of the compression spring 71. The bearing member 80a is movable between a first position in which the charging roller 8 is brought into contact with the photoreceptor drum 7 and a second position in which the charging roller 8 is separated from the photoreceptor drum 7 against the energizing force of the compression spring 71. When the bearing member 80a is in the first position, the support fixing part 11f restricts the separation of the bearing member 80a and when the bearing member 80a is in the second position, the bearing member 80a is separated from the support fixing part 11f and can be detached from the support fixing part 11f. <P>COPYRIGHT: (C)2012,JPO&INPIT |
