Patent ID: 6463242
Filing Date: 2002-10-08
Classification: G03G

Abstract:
A developing device for developing an electrostatic latent image formed on an electrophotographic photosensitive member, said developing device being mountable to a main assembly of an electrophotographic image forming apparatus, said developing device comprising;a developing member for developing the electrostatic latent image formed on the electrophotographic photosensitive member; a first developer accommodation portion for accommodating a developer comprising toner and carrier to be used for developing the electrostatic latent image; a second developer accommodation portion for accommodating a developer comprising the toner and the carrier to be supplied to said first developer accommodation portion, wherein said second developer accommodation portion is provided with an openable discharge opening, and by opening said discharge opening, the developer accommodated in said second developer accommodation portion is supplied into said first developer accommodation portion; a supply opening for supplying the toner from outside of said developing device into said first developer accommodation portion, when said developing device is mounted to the main assembly of said apparatus.