Developing cartridge for developing an electrostatic image forme

Details Developing cartridge for developing an electrostatic image forme Developing cartridge for developing an electrostatic image forme

1997-10-03

2000-08-08

Grainger, Quana

Electrophotography

Having particular structure

Modular or displaceable

399103, G03G 1500

Patent

active

061013528

ABSTRACT:
A developing cartridge is provided for developing a latent image formed on a photosensitive member. The developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The developing cartridge includes a developing member for developing a latent image formed on the photosensitive member with toner; a toner accommodating portion for accommodating the toner to be used for development by the developing member; a toner supply opening, provided in the toner accommodating portion, for supplying the toner accommodated in the toner accommodating portion to the developing member; a toner seal for blocking the toner from being supplied from the toner supply opening toward the developing member; a developing frame including a developing member mounting portion for mounting the developing member, the developing frame being provided with a toner passing opening for passing the toner supplied from the toner supply opening; a toner frame supporting the toner accommodating portion; and a toner seal opening provided between the toner passing opening of the developing frame and a bonding portion between the toner frame and the developing frame.

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