Abstract: Problem to be Solved To further develop a prior art cartridge. [Solution] A cartridge includes a holding movable between a first position for stably holding a second unit in a spaced position by a first unit and a second position, and a contact force receiving portion capable of receiving a contact force for moving the holding portion from the first position toward the second position to move the second unit to a developing position, when the second unit is in the spaced position.

Abstract: A toner cartridge includes a toner accommodating unit including first and second accommodating portions and includes a light transmitting portion having an incident surface and an emergent surface. The toner accommodating unit includes first and second end portions with respect to a first direction and includes third and fourth end portions with respect to a second direction crossing the first direction. The first accommodating portion is provided with a discharge opening, and the second accommodating portion is provided with a receiving opening. The discharge opening and the receiving opening are positioned closer to the third end portion than to the fourth end portion in the second direction. The incident surface and the emergent surface are provided in positions closer to the fourth end portion than to the third end portion in the second direction and are exposed to an outside of the cartridge.

Abstract: [Problem to be solved] To further develop a prior art cartridge. [Solution] A cartridge includes a holding movable between a first position for stably holding a second unit in a spaced position by a first unit and a second position, and a contact force receiving portion capable of receiving a contact force for moving the holding portion from the first position toward the second position to move the second unit to a developing position, when the second unit is in the spaced position.

Abstract: In a developing unit, one of a frame body and an end portion member, which sandwich a bearing member rotatably supporting a developing roller in an axis direction of the developing roller, includes a hole portion depressed in the axis direction on a surface facing the bearing member, and the other of the frame body and the end portion member includes a protruding portion inserted into the hole portion. The protruding portion includes a first region that is press-fitted into an inner wall surface of the hole portion, and a second region that faces the inner wall surface with a gap therebetween, and at least the gap is filled with an adhesive via a communication hole that extends in a direction intersecting the rotation axis direction such that the gap leads to an outside of the frame body.

Abstract: [Task] To further develop conventional technique.

Abstract: [Task] To further develop conventional technique. [SOLUTION] An image forming apparatus includes a main assembly; a plurality of process cartridges detachably mountable to the main assembly. The process cartridges each includes a photosensitive member, a first frame rotatably supporting the photosensitive member, a developing member for depositing toner onto the photosensitive member, and a second frame rotatably supporting the developing member and movable relative to the first frame between a developing position for the developing member to deposit the toner onto the photosensitive member and a retracted position in which the developing member is more remote from the photosensitive member than in the developing position. The apparatus further includes a connecting member 201 connecting at least two of the second frames of the process cartridges and removable from at least one of the process cartridges and from the main assembly.

Abstract: A cartridge includes a photosensitive member, a charging member configured to charge the photosensitive member, a first unit including the photosensitive member and the charging member, a developing member configured to deposit toner onto the photosensitive member, and a second unit including the developing member. A holding portion is movably supported by the first unit or the second unit, with the holding portion being configured to restrict a relative position between the first unit and the second unit, the holding portion being movable between a first position for holding the second unit in a spaced position by the first unit and a second position for holding the second unit in a developing position by the first unit.

Abstract: In a developing unit, one of a frame body and an end portion member, which sandwich a bearing member rotatably supporting a developing roller in an axis direction of the developing roller, includes a hole portion depressed in the axis direction on s surface facing the bearing member, the other of the frame body and the end portion member includes a protruding portion inserted into the hole portion, the protruding portion includes a first region that is press-fitted into an inner wall surface of the hole portion, and a second region that faces the inner wall surface with a gap therebetween, and at least the gap is filled with an adhesive via a communication hole that extends in a direction intersecting the rotation axis direction such that the gap leads to an outside of the frame body.

Abstract: A control member 76 for controlling transmission and blocking of a rotational force by a clutch is rotatably supported by a supporting member which supports a developing frame. a locking portion provided on the control member 76 rotates between a position retracted from a locked portion of the clutch and a position for engaging with the locked portion.

Abstract: A control member 76 for controlling transmission and blocking of a rotational force by a clutch is rotatably supported by a supporting member which supports a developing frame. a locking portion provided on the control member 76 rotates between a position retracted from a locked portion of the clutch and a position for engaging with the locked portion.

Abstract: A control member 76 for controlling transmission and blocking of a rotational force by a clutch is rotatably supported by a supporting member which supports a developing frame. a locking portion provided on the control member 76 rotates between a position retracted from a locked portion of the clutch and a position for engaging with the locked portion.

Abstract: [Problem to be solved] To further develop a prior art cartridge. [Solution] A cartridge includes a holding movable between a first position for stably holding a second unit in a spaced position by a first unit and a second position, and a contact force receiving portion capable of receiving a contact force for moving the holding portion from the first position toward the second position to move the second unit to a developing position, when the second unit is in the spaced position.

Abstract: A control member 76 for controlling transmission and blocking of a rotational force by a clutch is rotatably supported by a supporting member which supports a developing frame. a locking portion provided on the control member 76 rotates between a position retracted from a locked portion of the clutch and a position for engaging with the locked portion.

Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a drum unit including a photosensitive drum; a developing unit including a developing roller, a driving force receiving portion, and a development gear; a driving train for transmitting the driving force to the development gear. The developing roller is movable between a contact position and spacing position relative to the drum. The driving train includes a first driving portion connected with the driving force receiving portion and a second driving portion for transmitting the driving force toward the gear. When the developing unit is in the contact position, the first and second driving portions are connected with each other to transmit the driving force from the first driving portion to the second driving portion, and when the developing unit is in the spacing position, the first and the driving portion are not connected.

Abstract: A developing device includes a developing frame including a developing chamber, an accommodating chamber accommodating toner, and a partition wall provided with an opening connecting the developing chamber and the accommodating chamber. The developing device further includes an agitating member agitating the developer in the accommodating chamber, a shaft member including an attachment portion to which the agitating member is attached, and a conveying sheet conveying the toner. The conveying sheet includes a fixed portion fixed to the inner wall of the developing frame forming the accommodating chamber, and a displacement portion that is movable toward the opening by coming into contact with the agitating member. The rotation center of the shaft member is provided within an imaginary circle centered at the boundary point between the fixed portion and the displacement portion and passing through the distal end of the displacement portion.

Abstract: A control member 76 for controlling transmission and blocking of a rotational force by a clutch is rotatably supported by a supporting member which supports a developing frame. a locking portion provided on the control member 76 rotates between a position retracted from a locked portion of the clutch and a position for engaging with the locked portion.

Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a drum unit including a photosensitive drum; a developing unit including a developing roller, a driving force receiving portion, and a development gear; a driving train for transmitting the driving force to the development gear. The developing roller is movable between a contact position and spacing position relative to the drum. The driving train includes a first driving portion connected with the driving force receiving portion and a second driving portion for transmitting the driving force toward the gear. When the developing unit is in the contact position, the first and second driving portions are connected with each other to transmit the driving force from the first driving portion to the second driving portion, and when the developing unit is in the spacing position, the first and the driving portion are not connected.

Abstract: A developing device includes a developing frame including a developing chamber, an accommodating chamber accommodating toner, and a partition wall provided with an opening connecting the developing chamber and the accommodating chamber. The developing device further includes an agitating member agitating the developer in the accommodating chamber, a shaft member including an attachment portion to which the agitating member is attached, and a conveying sheet conveying the toner. The conveying sheet includes a fixed portion fixed to the inner wall of the developing frame forming the accommodating chamber, and a displacement portion that is movable toward the opening by coming into contact with the agitating member. The rotation center of the shaft member is provided within an imaginary circle centered at the boundary point between the fixed portion and the displacement portion and passing through the distal end of the displacement portion.