Patent ID: 8824915

Claim:
An image forming apparatus comprising: a rotatable photosensitive member; a corona charger, including a charging electrode, configured to charge said photosensitive member; a cleaning member configured to clean said charging electrode; a shield surrounding said charging electrode and having an opening between said charging electrode and said photosensitive member; a shutter in the form of a sheet configured to open and close the opening; driving means configured to drive said shutter and said cleaning member interrelatedly; a toner image forming portion configured to form a toner image on said photosensitive member charged by said corona charger; a fan configured to supply air toward said photosensitive member through the opening; and control means configured to control said fan such that an air supply operation of said fan is stopped before said shutter operates to close the opening, and said shutter closes the opening in a state of nonoperation of the air supply of said fan.