Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.

Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.

Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: A developer supplying apparatus, including: a developing frame having a developer storage chamber and an opening; a transport member which transports a developer from an inner side toward an opening side; and a drive transmitting member which moves the transport member by a driving force, wherein the drive transmitting member includes: a rotating shaft portion; a driven shaft portion which orbits around the rotating shaft portion; and a connecting portion which connects the rotating shaft portion and the driven shaft portion, and wherein the transport member includes: a transport portion having a first end portion on the opening side and a second end portion which is coupled to the driven shaft portion on the inner side; and a contact portion configured such that one end thereof is coupled to the transport portion and another end thereof is capable to contact with the developing frame.

Abstract: A cartridge includes a photosensitive member, a discharge opening for discharging a developer removed from the photosensitive member, toward a loosening member provided in the main assembly of a apparatus; a vibration imparting member for imparting vibration to the loosening member. The vibration imparting member is movable between a first position for imparting the vibration to the loosening member and a second position retracted from the first position.

Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.

Abstract: A cartridge includes a photosensitive member, a discharge opening for discharging a developer removed from the photosensitive member, toward a loosening member provided in the main assembly of a apparatus; a vibration imparting member for imparting vibration to the loosening member. The vibration imparting member is movable between a first position for imparting the vibration to the loosening member and a second position retracted from the first position.

Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.

Abstract: A cartridge includes a photosensitive member, a discharge opening for discharging a developer removed from the photosensitive member, toward a loosening member provided in the main assembly of a apparatus; a vibration imparting member for imparting vibration to the loosening member. The vibration imparting member is movable between a first position for imparting the vibration to the loosening member and a second position retracted from the first position.

Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.

Abstract: A developer feeding device includes a cleaning member contacted to an image bearing drum; a accommodating portion for the developer removed by the cleaning member; a feeding member for feeding the developer from the accommodating portion; a sheet contacted to the drum; and a guide forming a part of a wall surface of the accommodating portion at a position in a side of the sheet with respect to a line connecting a drum center and a feeding member center, as seen in a drum axis direction. The guide extends in a acute angle range formed between a first line extending vertically through the feeding member center and a second line extending in a direction of a rest angle of the developer through the feeding member center, the guide having a shape such as to approach to a linear shape as a distance of the feeding member decreases.

Abstract: A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge. The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

Abstract: An image forming apparatus includes: a photosensitive member configured to be rotated; scanning means for scanning, by light corresponding to image data, the photosensitive member that is charged, thereby forming an electrostatic latent image on the photosensitive member; and a contacting member in contact with the photosensitive member to form a nip portion. In a correction mode in which a shift of an image is corrected based on a detection result obtained by detecting, at the nip portion, an electrostatic latent image for correction formed on the photosensitive member by the scanning means, a width of the electrostatic latent image for correction is equal to or more than a width of the nip portion in a rotation direction of the photosensitive member.

Abstract: A developer feeding device includes a cleaning member contacted to an image bearing drum; a accommodating portion for the developer removed by the cleaning member; a feeding member for feeding the developer from the accommodating portion; a sheet contacted to the drum; and a guide forming a part of a wall surface of the accommodating portion at a position in a side of the sheet with respect to a line connecting a drum center and a feeding member center, as seen in a drum axis direction. The guide extends in a acute angle range formed between a first line extending vertically through the feeding member center and a second line extending in a direction of a rest angle of the developer through the feeding member center, the guide having a shape such as to approach to a linear shape as a distance of the feeding member decreases.