US Patent 7639968 Process unit and image forming apparatus

A process unit is described. The process unit may include a unit main body being detachably mountable to an image forming apparatus main body and including a first grasp portion, and a developer carrier for supplying a developing agent to an image carrier on which an electrostatic latent image is formed, and a toner box being detachably mountable to the unit main body and including a second grasp portion, and a developing agent accommodating section for accommodating the developing agent, wherein at least one of the first grasp portion and the second grasp portion can move toward a direction toward which a distance between the first grasp portion and the second grasp portion narrows.