| 摘要 |
A process cartridge (20) capable of accurately determining a relative position between an image holding member (29) and a charging device with electrodes (61,62), and an image forming apparatus including such a process cartridge and capable of forming a high quality image are provided. An upper frame (27) that supports a scorotron charger is provided with bearing members (66) that receive a drum shaft (35) of a photosensitive drum. A lower frame (28) that supports a transfer roller is provided with bearing member receiving portions (100) that receive the bearing members. The upper frame and the lower frame are assembled and fixed via the bearing members when the bearing member receiving portions receive the bearing members. As a result, a relative position between the upper frame and the lower frame can be accurately determined.
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