Abstract: An object of the present invention is to provide a developer supply container capable of simplifying a mechanism for displacing a developer receiving portion to connect it with a developer supply container. A developer supply container 1 for supplying a developer through a developer receiving portion 11 displaceably provided in a developer receiving apparatus 8 to which said developer supply container 1 is detachably mountable, said developer supply container 1 includes a developer accommodating portion 2c for accommodating a developer; and an engaging portions 3b2, 3b4, engageable with said developer receiving portion 11, for displacing said developer receiving portion 11 toward said developer supply container 1 with a mounting operation of said developer supply container 1 to establish a connected state between said developer supply container 1 and said developer receiving portion 11.

Abstract: A powder filling apparatus and a powder filling method which enable powder to be densely filled in a short period of time is to be provided. This is a powder filling apparatus having a pressure hopper wherein the pressure hopper has a discharger for discharging powder and a gas inlet positioned above at least the surface of a powder layer formed by the powder in the pressure hopper; the powder layer is so formed as to blockade the discharger in the pressure hopper; in the powder filling apparatus, the inside of the pressure hopper is pressurized by leading in gas through the gas inlet in a state in which the discharger is closed, and the powder layer so formed as to blockade the discharger is discharged by opening the discharger after the pressurization thereby to utilize that pressure to load the powder into the filling container.

Abstract: A powder filling apparatus and a powder filling method which enable powder to be densely filled in a short period of time is to be provided. This is a powder filling apparatus having a pressure hopper wherein the pressure hopper has a discharger for discharging powder and a gas inlet positioned above at least the surface of a powder layer formed by the powder in the pressure hopper; the powder layer is so formed as to blockade the discharger in the pressure hopper; in the powder filling apparatus, the inside of the pressure hopper is pressurized by leading in gas through the gas inlet in a state in which the discharger is closed, and the powder layer so formed as to blockade the discharger is discharged by opening the discharger after the pressurization thereby to utilize that pressure to load the powder into the filling container.

Abstract: A developer supply container detachably mountable to an image forming apparatus includes a rotatable container body provided with a portion-to-be-engaged on an inner surface thereof; an opening for permitting discharging of the developer; a sealing portion for sealing the opening; an extended portion being displaceable toward a rotational axis of the container body; an engaging portion engageable with the portion-to-be-engaged; and a limiting portion to substantially hold the sealing portion in a sealing position by engagement between the engaging portion and the portion-to-be-engaged, and a non-limiting portion to permit the relative movement of the sealing portion by disengagement between the engaging portion and the portion-to-be-engaged.

Abstract: A powder filling apparatus and a powder filling method which enable powder to be densely filled in a short period of time is to be provided. This is a powder filling apparatus having a pressure hopper wherein the pressure hopper has a discharger for discharging powder and a gas inlet positioned above at least the surface of a powder layer formed by the powder in the pressure hopper; the powder layer is so formed as to blockade the discharger in the pressure hopper; in the powder filling apparatus, the inside of the pressure hopper is pressurized by leading in gas through the gas inlet in a state in which the discharger is closed, and the powder layer so formed as to blockade the discharger is discharged by opening the discharger after the pressurization thereby to utilize that pressure to load the powder into the filling container.

Abstract: A powder filling apparatus and a powder filling method which enable powder to be densely filled in a short period of time is to be provided. This is a powder filling apparatus having a pressure hopper wherein the pressure hopper has a discharger for discharging powder and a gas inlet positioned above at least the surface of a powder layer formed by the powder in the pressure hopper; the powder layer is so formed as to blockade the discharger in the pressure hopper; in the powder filling apparatus, the inside of the pressure hopper is pressurized by leading in gas through the gas inlet in a state in which the discharger is closed, and the powder layer so formed as to blockade the discharger is discharged by opening the discharger after the pressurization thereby to utilize that pressure to load the powder into the filling container.

Abstract: A powder filling apparatus and a powder filling method which enable powder to be densely filled in a short period of time is to be provided. This is a powder filling apparatus having a pressure hopper wherein the pressure hopper has a discharger for discharging powder and a gas inlet positioned above at least the surface of a powder layer formed by the powder in the pressure hopper; the powder layer is so formed as to blockade the discharger in the pressure hopper; in the powder filling apparatus, the inside of the pressure hopper is pressurized by leading in gas through the gas inlet in a state in which the discharger is closed, and the powder layer so formed as to blockade the discharger is discharged by opening the discharger after the pressurization thereby to utilize that pressure to load the powder into the filling container.

Abstract: A developer supply container detachably mountable to an image forming apparatus includes a rotatable container body provided with a portion-to-be-engaged on an inner surface thereof; an opening for permitting discharging of the developer; a sealing portion for sealing the opening; an extended portion being displaceable toward a rotational axis of the container body; an engaging portion engageable with the portion-to-be-engaged; and a limiting portion to substantially hold the sealing portion in a sealing position by engagement between the engaging portion and the portion-to-be-engaged, and a non-limiting portion to permit the relative movement of the sealing portion by disengagement between the engaging portion and the portion-to-be-engaged.

Abstract: A powder filling apparatus and a powder filling method which enable powder to be densely filled in a short period of time is to be provided. This is a powder filling apparatus having a pressure hopper wherein the pressure hopper has a discharger for discharging powder and a gas inlet positioned above at least the surface of a powder layer formed by the powder in the pressure hopper; the powder layer is so formed as to blockade the discharger in the pressure hopper; in the powder filling apparatus, the inside of the pressure hopper is pressurized by leading in gas through the gas inlet in a state in which the discharger is closed, and the powder layer so formed as to blockade the discharger is discharged by opening the discharger after the pressurization thereby to utilize that pressure to load the powder into the filling container.