| 摘要 |
An image forming apparatus includes an image forming apparatus body having a space in which a cartridge is mounted, a developer residual amount sensor having a cartridge confronting face, a supported face, a sensor head and an inclination regulating projection member and serves to detect the amount of developer, a sensor holder having a sensor supporting face for supporting the supported face and a sensor holding portion for holding the developer residual amount sensor, and a fulcrum member which is rotatable with respect to the tip portion thereof as a fulcrum.
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