Developing Cartridge, Image Forming Apparatus having the Same, and Maintenance Method of Developing Cartridge

摘要

A developing cartridge includes a main frame (110) including a photosensitive medium (111), and a charging member frame (150) including a charging member (160) to charge the photosensitive medium (111) and detachably disposed at the main frame (110). The main frame (110) includes a plurality of frame reference grooves (141), and the charging member frame (150) includes a plurality of frame reference projections (151) to be inserted into the plurality of frame reference grooves (141) of the main frame (110).