Abstract: A toner container for replenishing toner to an image forming apparatus, including: a container main body having a toner outlet and a toner conveyance device which conveys the toner toward the toner outlet through rotation; a cap which covers the toner outlet and has a toner ejecting section; a toner ejecting member which conveys the toner from the container main body to the cap; and a holding ring which is fixed with the toner ejecting member, wherein the container main body has a first engagement member which engages with an engagement section of the holding ring such that the container main body, rotates together with the holding ring and the toner ejecting member, and wherein the cap has a second engagement member which engages with the holding ring such that the holding ring and the toner ejecting member are rotatable.

Abstract: A toner container for replenishing toner to an image forming apparatus including: a container main body which comprises a toner storage section and a toner outlet; a cap that covers the toner outlet; and a seal member that is interposed between the container main body and the cap to prevent toner leakage, wherein the container main body has a step portion formed between the toner storage section and the toner outlet, and the seal member is fixed on the step portion to be interposed between the step portion and the cap.

Abstract: A toner container for replenishing toner to an image forming apparatus including: a container main body which comprises a toner storage section and a toner outlet; a cap that covers the toner outlet; and a seal member that is interposed between the container main body and the cap to prevent toner leakage, wherein the container main body has a step portion formed between the toner storage section and the toner outlet, and the seal member is fixed on the step portion to be interposed between the step portion and the cap.

Abstract: A toner container for replenishing toner to an image forming apparatus, including: a container main body having a toner outlet and a toner conveyance device which conveys the toner toward the toner outlet through rotation; a cap which covers the toner outlet and has a toner ejecting section; a toner ejecting member which conveys the toner from the container main body to the cap; and a holding ring which is fixed with the toner ejecting member, wherein the container main body has a first engagement member which engages with an engagement section of the holding ring such that the container main body, rotates together with the holding ring and the toner ejecting member, and wherein the cap has a second engagement member which engages with the holding ring such that the holding ring and the toner ejecting member are rotatable.

Abstract: A toner container for supplying and/or replenishing toner into a development apparatus of image forming apparatus, by being engaged with the rotation transfer member of the development apparatus and being rotated about a center axis of the toner container integrally with the rotation transfer member. The toner container is structured with a cylindrical body having a toner outlet on one end of the cylindrical body, nearby a center axis of the cylindrical body, a convex spiral flute formed on the inner periphery of the cylindrical body, and a concave spiral flute formed on the outer periphery of the cylindrical body, wherein a ratio L/D of length L to diameter D of the cylindrical body is in a range of 1/2?L/D?10, a thickness of the cylindrical body t is 0.3 mm?t?5.0 mm; and a thickness deviation of the cylindrical body is ?t?20%.

Abstract: A toner container for supplying and/or replenishing toner into a development apparatus of image forming apparatus, by being engaged with the rotation transfer member of the development apparatus and being rotated about a center axis of the toner container integrally with the rotation transfer member. The toner container is structured with a cylindrical body having a toner outlet on one end of the cylindrical body, nearby a center axis of the cylindrical body, a convex spiral flute formed on the inner periphery of the cylindrical body, and a concave spiral flute formed on the outer periphery of the cylindrical body, wherein a ratio L/D of length L to diameter D of the cylindrical body is in a range of 1/2?L/D?10, a thickness of the cylindrical body t is 0.3 mm?t?5.0 mm; and a thickness deviation of the cylindrical body is ?t?20%.

Abstract: A toner container for supplying and/or replenishing toner into a development apparatus of image forming apparatus, by being engaged with the rotation transfer member of the development apparatus and being rotated about a center axis of the toner container integrally with the rotation transfer member. The toner container is structured with a cylindrical body having a toner outlet on one end of the cylindrical body, nearby a center axis of the cylindrical body, a convex spiral flute formed on the inner periphery of the cylindrical body, and a concave spiral flute formed on the outer periphery of the cylindrical body, wherein a ratio L/D of length L to diameter D of the cylindrical body is in a range of ½?L/D?10, a thickness of the cylindrical body t is 0.3 mm?t?5.0 mm; and a thickness deviation of the cylindrical body is ?t?20%.

Abstract: A fine particle storage container, including a first surface member on which plural grooves are carved in a radial pattern, and the plural grooves penetrate the first surface member from an interior side to a periphery, and a second surface member to be firmly fitted to the first surface member to seal the fine particle storage container, wherein gas in the fine particle storage container is ejected to the exterior of the fine particle storage container through the plural grooves, though the fine particles are not ejected through the plural grooves.

Abstract: A toner container for supplying and/or replenishing toner into a development apparatus of image forming apparatus, by being engaged with the rotation transfer member of the development apparatus and being rotated about a center axis of the toner container integrally with the rotation transfer member. The toner container is structured with a cylindrical body having a toner outlet on one end of the cylindrical body, nearby a center axis of the cylindrical body, a convex spiral flute formed on the inner periphery of the cylindrical body, and a concave spiral flute formed on the outer periphery of the cylindrical body, wherein a ratio L/D of length L to diameter D of the cylindrical body is in a range of ½?L/D?10, a thickness of the cylindrical body t is 0.3 mm?t?5.0 mm; and a thickness deviation of the cylindrical body is ?t?20%.

Abstract: This invention relates to a powder or toner accommodating container. This container is a powder or toner accommodating container having at least one engaging portion between a container main body and an accessory component to be mounted on the container main body, wherein the container includes a gas releasing function of releasing a gas in the container outside the container when a pressure difference between the interior and exterior of the container exceeds a predetermined value.

Abstract: A toner container for supplying and/or replenishing toner into a development apparatus of image forming apparatus, by being engaged with the rotation transfer member of the development apparatus and being rotated about a center axis of the toner container integrally with the rotation transfer member. The toner container is structured with a cylindrical body having a toner outlet on one end of the cylindrical body, nearby a center axis of the cylindrical body, a convex spiral flute formed on the inner periphery of the cylindrical body, and a concave spiral flute formed on the outer periphery of the cylindrical body, wherein a ratio L/D of length L to diameter D of the cylindrical body is in a range of ½≦L/D≦10, a thickness of the cylindrical body t is 0.3 mm≦t≦5.0 mm; and a thickness deviation of the cylindrical body is &Dgr;t≦20%.

Abstract: This invention relates to a powder or toner accommodating container. This container is a powder or toner accommodating container having at least one engaging portion between a container main body and an accessory component to be mounted on the container main body, wherein the container includes a gas releasing function of releasing a gas in the container outside the container when a pressure difference between the interior and exterior of the container exceeds a predetermined value.

Abstract: A cylindrical toner storing container that engages with a rotation transmitting member of a developing device provided in an image forming apparatus to rotate around the rotation axis integrally with the rotation transmitting member and thereby supplies or replenishes toner to the developing device. The toner storing container has a cylindrical base body that has a toner outlet opening in the vicinity of the rotation axis on one end, the cylindrical base body has on the inner surface thereof a protruded spiral ridge, and the number of the spiral ridge on a cross section of the cylindrical base body is increased as the cross section nears the toner outlet opening.

Abstract: A packaging material for electrophotographic development materials is disclosed. The packaging material comprising a film having a moisture permeability of 0.7 g/m2/day, or a packaging material for electrophotographic development materials in which inner-most layer is an adhesive layer, the top layer is a polyester layer, and between them, there are at least an aluminum layer and a polyamide layer. The packaging material exhibits high moisture-resistance and film strength, and can cope with environmental issues.

Abstract: A powder accommodating container for accommodating powder includes: a flexible bag having an opening, capable of storing the powder; a protecting member for enclosing at least part of the flexible bag, wherein the protecting member is capable of being transformed; and a cover mounted on the protecting member, for opening and closing the opening.

Abstract: A cynlindrical toner storing container that engages with a rotation transmitting memebre of a developing device provided in an image forming apparatus to rotate around the rotation axis integrally with the rotation transmitting member and thereby supplies or replenishes toner to the developing device. The toner storing container has a cylindrical base body that has a toner outlet opening in the vicinity of the rotation axis on one end, the cylindrical base body has on the inner surface thereof a protruded spiral ridge, and the number of the spiral ridges on a cross section of the cylindrical base body is increased as the cross section nears the toner outlet opening.