US Patent 10901366 Image forming apparatus and cartridge

The image forming apparatus includes a cartridge and an image forming apparatus main assembly. An image forming apparatus main assembly includes a drive output member for transmitting the driving force to the cartridge. The drive output member is movable between an advanced position and a retracted position. An image forming apparatus main assembly includes an inclination imparting portion for inclining the drive output member as the drive output member moves from the advanced position to the retracted position.