Fuji Xerox Co., Ltd.

Takanori Nagai

Hideo Ichikawa

A developer cartridge container including a container body having a cylindrical body formed with an opening at one end and a bottom wall member provided on the other end opposite from the one end, an resilient thin wall container to be accommodated in the container body, and a closing lid having a developer discharge port capable of being attached to and detached from the container body and a mounting portion of a coupler for closing the opening of the container body and an opening of the resilient thin wall container in a state of being mounted to the container body.

Developer cartridge container, developer cartridge, image forming unit, recycling method of developer cartridge container, and recycling method of developer cartridge

A toner cartridge of the present invention includes a container for containing toner, a toner discharge port, a sealing member for sealing the toner discharge port, an air communicating hole having an area smaller than that of the discharge port, and an air permeable member made of porous material for covering the air hole, adjusting a pressure within the container, and restricting permeation of moisture into the container so as to prevent a blocking phenomenon of toner. Specifically, a coefficient of moisture permeability of the porous material is 100 to 1000 g/m.sup.2 /24 hours in a measuring method of JIS (Japanese Industrial Standard) L-1096-A-11 to restrict permeation of moisture into the container so as to prevent a blocking phenomenon of toner. Accordingly, the toner cartridge of the present invention scatters little toner, is insensitive to variation of ambient conditions, and deteriorates the quality of toner very little even after a long time storage.

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Kanagawa, Japan

Takanori Nagai