Abstract: An accommodating container includes: an accommodating chamber, provided with an opening, for accommodating a developer; a seal member for unsealably sealing the opening; and a rotatable member rotatably supported inside the accommodating chamber. The seal member includes a sealing portion for sealing the opening, a connecting portion connected with the rotatable member, and at least one hole provided between the sealing portion and the connecting portion. The rotatable member includes a shaft portion and at least one projection extending in a direction of being spaced from the shaft portion. The hole and the projection are provided to establish a non-overlapping positional relationship with respect to a direction along the shaft portion.

Abstract: An accommodating container for accommodating a developer includes a feeding member for feeding the developer in the accommodating container; and a wall member provided in the accommodating container and extending along a direction crossing a developer feeding direction of the feeding member and inclined so that a distance from the feeding member increases toward a downstream side of the feeding member with respect to the developer feeding direction.

Abstract: A feeding device for feeding a developer includes an accommodating member, a first helical feeding member including a first region having a first diameter and a second region having a second diameter smaller than the first diameter in a named order with respect to a first feeding direction, a second helical feeding member for feeding the developer in a second feeding direction crossing the first feeding direction, and a wall extending toward the second helical feeding member so that the wall is spaced from the first helical feeding member toward a downstream side of the first helical feeding member with respect to the first feeding direction to branch a flow path of the developer. With respect to the first feeding direction, the second region is provided between the first region and a position where the first and second helical feeding members cross each other.

Abstract: A feeding device includes a first feeding member for feeding the developer in a feeding direction along a first rotational axis direction, the first feeding member being provided in a first feeding path and including a driving shaft and a drive transmitting portion, and a second feeding member for feeding the developer along a second rotational axis direction crossing the first rotational axis direction, and second feeding member being provided in a second feeding path and including a driven shaft and a drive receiving portion. The drive transmitting portion and the drive receiving portion engage with each other to deliver the developer from the first feeding member to the second feeding member. A bearing portion for rotatably supporting the second feeding member is provided in an upstream side with respect to the feeding direction.

Abstract: An image forming apparatus includes a main body, a moving member movable while supporting an image forming portion having an image bearing member, between a position inside the main body and a position outside the main body so that at least a part of the image forming portion is removably mountable on the moving member as a cartridge, and an exposure device configured to expose the image bearing member with light through an exposure opening provided in the moving member. In addition, a shielding member is provided in the moving member to shield the exposure opening, and a holding mechanism holds the shielding member in a shielding position for shielding the exposure opening while the moving member is moved and holds the shielding member in a non-shielding position for opening the exposure opening when the moving member is in the inside position.

Abstract: An accommodating container includes: an accommodating chamber, provided with an opening, for accommodating a developer; a seal member for unsealably sealing the opening; and a rotatable member rotatably supported inside the accommodating chamber. The seal member includes a sealing portion for sealing the opening, a connecting portion connected with the rotatable member, and at least one hole provided between the sealing portion and the connecting portion. The rotatable member includes a shaft portion and at least one projection extending in a direction of being spaced from the shaft portion. The hole and the projection are provided to establish a non-overlapping positional relationship with respect to a direction along the shaft portion.

Abstract: A developer accommodating container for accommodating a developer includes: a toner seal member for unsealably sealing an opening of the developer accommodating container; an unsealing member, connected to an end portion of the toner seal member, for unsealing the opening by moving at least a part of the toner seal member; and an auxiliary unsealing member for assisting unsealing by changing a pulling direction of the toner seal member by the unsealing member. The auxiliary unsealing member includes a shaft portion or a projected portion. The shaft portion or the projected portion extends in a longitudinal direction of the developer accommodating container.

Abstract: A developer accommodating container for accommodating a developer includes: a toner seal member for unsealably sealing an opening of the developer accommodating container; an unsealing member, connected to an end portion of the toner seal member, for unsealing the opening by moving at least a part of the toner seal member; and an auxiliary unsealing member for assisting unsealing by changing a pulling direction of the toner seal member by the unsealing member. The auxiliary unsealing member includes a shaft portion or a projected portion. The shaft portion or the projected portion extends in a longitudinal direction of the developer accommodating container.

Abstract: A developer accommodating container for accommodating a developer includes: a toner seal member for unsealably sealing an opening of the developer accommodating container; an unsealing member, connected to an end portion of the toner seal member, for unsealing the opening by moving at least a part of the toner seal member; and an auxiliary unsealing member for assisting unsealing by changing a pulling direction of the toner seal member by the unsealing member. The auxiliary unsealing member includes a shaft portion or a projected portion. The shaft portion or the projected portion extends in a longitudinal direction of the developer accommodating container.

Abstract: A developer accommodating container for accommodating a developer includes: a toner seal member for unsealably sealing an opening of the developer accommodating container; an unsealing member, connected to an end portion of the toner seal member, for unsealing the opening by moving at least a part of the toner seal member; and an auxiliary unsealing member for assisting unsealing by changing a pulling direction of the toner seal member by the unsealing member. The auxiliary unsealing member includes a shaft portion or a projected portion. The shaft portion or the projected portion extends in a longitudinal direction of the developer accommodating container.

Abstract: An image forming apparatus includes an apparatus main-body to and from which a process cartridge can be attached and detached. The process cartridge includes an image carrying member to carry an image, a charging member to charge the image carrying member, a cleaning member to clean the charging member by contacting it, and a force receiving unit to receive a force for moving the cleaning member in a longitudinal direction of the image carrying member. The apparatus main-body includes a slope portion which slopes in a direction in which the process cartridge is attached and contacts the force receiving unit to apply the force in a process where the process cartridge is attached to the apparatus main-body, and the slope portion applies the force to the force receiving unit to move the cleaning member from an inside to an outside of a region where an image can be formed.

Abstract: A developer container includes: a developer accommodating chamber, provided with an opening, for accommodating a developer; a sealing member bonded to the developer accommodating container so as to block the opening; and a rotatable member, having a connecting surface where the sealing member is connected thereto, for peeling off the sealing member from the opening by rotation thereof. The connecting surface has a rectangular shape which has a long side with respect to a rotational axis direction of the rotatable member and which is twisted in a rotational direction of the rotatable member.

Abstract: An image forming apparatus, including: a main body; a moving member movable while supporting an image forming portion having an image bearing member, between an inside position inside the main body and an outside position outside the main body so that at least a part of the image forming portion is removably mountable on the moving member as a cartridge; an exposure device configured to expose the image bearing member with light through an exposure opening provided in the moving member; a shielding member provided in the moving member to shield the exposure opening; and a holding mechanism configured to hold the shielding member in a shielding position for shielding the exposure opening while the moving member is moved, and to hold the shielding member in a non-shielding position for opening the exposure opening when the moving member is in the inside position.

Abstract: A cartridge includes: a toner chamber, provided with an opening, for accommodating a toner; and a seal member including a sealing portion, elongated in a longitudinal direction of the cartridge, for unsealably sealing the opening and a mounting portion for being mounted on an unsealing member to unseal the opening. The sealing portion includes a first sealing portion located at a longitudinal end portion and a second sealing portion located at a longitudinal central portion. With respect to a direction crossing the longitudinal direction, a length between the first sealing portion and the mounting portion of the seal member is shorter than a length between the second sealing portion and the mounting portion.

Abstract: A developer container includes: a developer chamber, provided with an opening, for accommodating a developer; a rotatable member rotatably supported in the developer chamber; and a sealing member for being removed at the opening by being wound up by the rotatable member, wherein the sealing member is provided in the developer chamber and includes a first end portion connected to the rotatable member and a second end portion sealing the opening. Sealing of the opening is made by bonding the sealing member along an edge of the opening. The developer container includes a first bonding portion provided upstream of the opening and a second bonding portion provided downstream of the opening with respect to an unsealing direction of the sealing member. A peeling-off force for peeling off the sealing member at a predetermined angle is larger at the first bonding portion than at the second bonding portion.

Abstract: A cartridge includes: a toner chamber; and a toner supplying chamber for supplying a toner through a developer supply opening communicating with the toner chamber. The toner chamber includes: a feeding portion, including a rotatable member and a feeding sheet connected with the rotatable member, for feeding the toner from the toner chamber to the toner supplying chamber; and a toner seal member, including a first end portion and a second end portion, for unsealing the toner supply opening by being wound up by the rotatable member. During start of unsealing of the toner supply opening, the feeding portion is located below a powder surface of the toner with respect to a direction of gravitation, and the feeding sheet is located in a position where the feeding sheet is contactable to an inner wall of the toner chamber.

Abstract: An image forming apparatus includes an apparatus main-body to and from which a process cartridge can be attached and detached. The process cartridge includes an image carrying member to carry an image, a charging member to charge the image carrying member, a cleaning member to clean the charging member by contacting it, and a force receiving unit to receive a force for moving the cleaning member in a longitudinal direction of the image carrying member. The apparatus main-body includes a slope portion which slopes in a direction in which the process cartridge is attached and contacts the force receiving unit to apply the force in a process where the process cartridge is attached to the apparatus main-body, and the slope portion applies the force to the force receiving unit to move the cleaning member from an inside to an outside of a region where an image can be formed.

Abstract: A developer container includes: a developer accommodating chamber, provided with an opening, for accommodating a developer; a sealing member including end portion sealing portions each for sealing an end portion of the opening and a central portion sealing portion for sealing a central portion of the opening; and a rotatable member, connected with the sealing member, for peeling off the sealing member from the opening by rotation thereof to expose the opening. With respect to a rotational axis direction of the rotatable member, an outer configuration of the rotatable member is different between a sealing-member-connected end thereof and a sealing-member-connected center thereof so that one of the end portion sealing portions is peeled earlier than the central portion sealing portion and so that the central portion is peeled earlier than the other one of the end portion sealing portions.

Abstract: A cartridge includes: a toner accommodating frame including a toner feeding opening communicating with a toner feeding chamber and a toner filling port; a rotatable member; and a toner seal member. The toner seal member includes a first fixed portion and a second fixed portion which are fixed on the toner accommodating frame at an edge of the toner feeding opening along a longitudinal direction of the toner feeding opening, and includes a third fixed portion fixed on the rotatable member. With rotation of the rotatable member, the first fixed portion of the toner seal member is peeled off from a fixing portion to open the toner feeding opening. The toner is filled into said toner accommodating frame through the toner filling port such that the toner is first filled into a recess defined by said toner seal member.

Abstract: A developer container includes: a developer accommodating chamber, provided with an opening, for accommodating a developer; a sealing member including end portion sealing portions each for sealing an end portion of the opening and a central portion sealing portion for sealing a central portion of the opening; and a rotatable member, connected with the sealing member, for peeling off the sealing member from the opening by rotation thereof to expose the opening. With respect to a rotational axis direction of the rotatable member, an outer configuration of the rotatable member is different between a sealing-member-connected end thereof and a sealing-member-connected center thereof so that one of the end portion sealing portions is peeled earlier than the central portion sealing portion and so that the central portion is peeled earlier than the other one of the end portion sealing portions.