US 5,206,619 AGranted

Toner cartridge

AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha

InventorMasahiro Kita

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Abstract

A cartridge detachably coupled to a device is provided, for supplying a substance adapted to be accommodated in the cartridge to the device through an opening formed on the device. The cartridge includes a flange portion located on a surrounding portion of the opening of the device, and a supply port to be received in the opening. The supply port is covered by a sheet member, which is folded to be double-layered and to have both end portions of the first and second layers positioned at the same side. The first layer is adhered to the peripheral surface of the supply port, and a sealing member is secured to the flange portion and positioned between the flange portion and the surrounding portion of the opening, when the cartridge is coupled to the device, for tightly closing the opening. A slit is formed through the superposed pair of the flange portion and the sealing member for passing both end portions of the sheet member so that both end portions remain outside of the cartridge when the cartridge is coupled to the device.

Claims7

Dependent claims

A toner cartridge to be coupled to a developing device for supplying a toner accommodated in said cartridge to said developing device through an opening formed on said developing device, comprising:

a main body in which the toner is adapted to be accommodated;
a flange portion formed on said main body, to be seated on a peripheral portion of said opening of said developing device;
a supply port which is formed on said main body, to be received in said opening and through which the toner is supplied from said main body;
a sheet member for removably covering said supply port, said sheet member being folded in a double-layered manner to have a first layer and a second layer and both end portions of said sheet member being positioned at one side of said cartridge, said first layer being adhered to a peripheral surface of said supply port in a detachable manner;
a sealing member interposed between said flange portion and said peripheral portion of said opening, when said cartridge is coupled to said developing device, for tightly closing said opening;
and
slits which are formed through superposed portions of said flange portion and said sealing member and communicating with each other, for passing said both end portions of said sheet member so that said both end portions protrude outside from said main body when said cartridge is coupled to said developing device,
wherein said supply port is opened when one end portion of said second layer of said sheet member is pulled out.

5 more elements

Dependencies are inferred from the claim text.