Patent ID: 8818213

Claim:
A process unit comprising: a process section disposed proximate to an image bearing member and including a rotating section, the process section being attachable to and detachable from a body and configured to apply a process to the image bearing member; a moving section disposed on a shaft of the rotating section and including a key, the moving section configured to slide between a first position close to the rotating section and a second position away from the rotating section; and a positioning section disposed between the rotating section and the moving section and configured to follow movement of the rotating section and to hold the moving section in the first position and the second position, the positioning section including a coupling section configured to hold the moving section in the first position if a portion of the coupling section fits in the key and to hold the moving section in the second position if the portion of the coupling section does not fit in the key, and an elastic section configured to press the moving section in a direction of the first position.