| 摘要 |
PROBLEM TO BE SOLVED: To surely receive the transmission of a driving force from a device main body by arranging a driving force receiving part on the inside of a developing bias contact in the longitudinal direction of a developing member. SOLUTION: This developing cartridge is provided with the rotatable driving force receiving part, e.g. a coupling recessed part 21BG for receiving the driving force for rotating the developing member from the device main body. Also the developing bias contact 21BU1 is installed on one end side of the developing cartridge, and the contact 21BU1 for receiving the developing bias to be supplied to the developing member from the device main body when the developing cartridge is loaded in the device main body is installed so as to be exposed from a cartridge frame, e.g. a holder BR. In the longitudinal direction of the developing member, the driving force receiving part 21BG is arranged on the inside of the developing bias contact 21BU1. The driving force receiving part is arranged on the inner side of the cartridge in such a way, the driving force receiving part is hardly damaged, and also, dirt and dust, etc., hardly stick to the driving force receiving part. Thus, the rotational accuracy is maintained. |
