| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing, which prevents the generation of the accuracy drop of a roller position, the breakage of a housing and the bearing, the increase of the load on the bearings and shafts of rollers by preventing the inclination of bearing holding portions toward the axis of the roller, and further to provide a developing apparatus, a process cartridge, and an image forming apparatus. <P>SOLUTION: The developing roller bearing 19 supports a developing roller shaft 18a, and is held by means of developing roller bearing holding portions 25 having an opened portion 25a, and comprises opening preventing portions 19a, 19b for preventing the deformation of the opened portion 25a in the opening direction, and also comprises a flange 19c and an inclination preventing portion 19f for preventing the inclination of the developing roller bearing holding portions 25 in the axial direction of a developing roller 18. <P>COPYRIGHT: (C)2007,JPO&INPIT |
