Process unit divided into a plurality of separable units and image forming apparatus using such process unit

摘要

A process unit is provided which includes a unit housing having a downwardly opened upper housing and an upwardly opened lower housing. The upper housing and the lower housing are detachably coupled to define a space section. A photosensitive member unit is detachably attached in the upper housing, and a developing device is detachably attached in the lower housing.