Abstract: A cartridge that can be mounted in and detached from main body of an apparatus of an image forming apparatus includes: a rotating member that rotates upon reception of driving force from main body of the apparatus; a coupling member that includes a force receiving portion for receiving the driving force from main body of the apparatus via a drive shaft, transmits the driving force to the rotating member by rotating, and is capable of moving relative to the rotating member; and a wire-shaped biasing member for biasing the coupling member, wherein the coupling member includes a groove that is contacted by the biasing member, and an opening width of the groove is wider than a wire diameter of the biasing member.

Abstract: A cartridge includes a cover member including a substantially disc-shaped planar portion extending in a direction orthogonal to an axis of rotation of a photosensitive drum, a first projection portion projecting from the planar portion toward an outside in the direction of the axis of rotation, the first projection portion configured to abut on the positioning portion so that the first frame is positioned within an apparatus main body, a concave portion recessed from the planar portion toward an inner side in the direction of the axis of rotation, and a second projection portion provided in the concave portion, the second projection portion projecting from the concave portion toward an outside in the direction of the axis of rotation, the second projection portion configured to engage with one end of an urging member.

Abstract: A cartridge includes a cover member that includes a flat portion, a substantially circular hole portion formed in the flat portion, an arc portion inserted through the hole portion, a first cutaway portion having a shape formed by cutting in the hole portion radially outward, the first cutaway portion arranged in a position opposed to the protrusion portion when viewed in a direction of a rotational axis, and a second cutaway portion having a shape formed by cutting the flat portion toward a photosensitive drum in the direction of the rotational axis to expose a coupling member when viewed in a direction orthogonal to the rotational axis.

Abstract: A conveying device in which a circle formed of a trajectory drawn by a distal end of an engaging portion and an axial line of a driven shaft intersect each other when viewing in an axial direction of a drive shaft, and a slope of the driven shaft with respect to a horizontal direction is an angle not larger than an angle of repose of a developer when viewing in the axial direction of the drive shaft is provided.

Abstract: A cartridge including a photosensitive drum, a cleaning unit that supports the photosensitive drum, a process member that acts on the photosensitive drum, the cartridge being detachable from a main body of the image forming apparatus in a rotational axial direction of the photosensitive drum. The cartridge further including a first position determination position determining a downstream position with respect to the main body in a mounting direction of the photosensitive drum, and a second position determination portion that determines an upstream position with respect to the main body in the mounting direction. Furthermore, in a cross section orthogonal to the mounting direction, a distance from an axis of rotation of the photosensitive drum to the second position determination portion in a predetermined direction is larger than a distance from the axis of rotation to the first position determination portion in the predetermined direction.

Abstract: A cartridge includes a cover member that includes a flat portion, a substantially circular hole portion formed in the flat portion, an arc portion inserted through the hole portion, a first cutaway portion having a shape formed by cutting in the hole portion radially outward, the first cutaway portion arranged in a position opposed to the protrusion portion when viewed in a direction of a rotational axis, and a second cutaway portion having a shape formed by cutting the flat portion toward a photosensitive drum in the direction of the rotational axis to expose a coupling member when viewed in a direction orthogonal to the rotational axis.

Abstract: A cartridge that can be mounted in and detached from main body of an apparatus of an image forming apparatus includes: a rotating member that rotates upon reception of driving force from main body of the apparatus; a coupling member that includes a force receiving portion for receiving the driving force from main body of the apparatus via a drive shaft, transmits the driving force to the rotating member by rotating, and is capable of moving relative to the rotating member; and a wire-shaped biasing member for biasing the coupling member, wherein the coupling member includes a groove that is contacted by the biasing member, and an opening width of the groove is wider than a wire diameter of the biasing member.

Abstract: A cartridge includes a cover member that includes a flat portion, a substantially circular hole portion formed in the flat portion, an arc portion inserted through the hole portion, a first cutaway portion having a shape formed by cutting in the hole portion radially outward, the first cutaway portion arranged in a position opposed to the protrusion portion when viewed in a direction of a rotational axis, and a second cutaway portion having a shape formed by cutting the flat portion toward a photosensitive drum in the direction of the rotational axis to expose a coupling member when viewed in a direction orthogonal to the rotational axis.

Abstract: A flange member includes a first cylindrical portion, a second cylindrical portion disposed inside the first cylindrical portion coaxially with the first cylindrical portion, an inwardly protruding portion protruding from an inner circumference of the second cylindrical portion, a first wall extending in the central axis direction and connecting the first cylindrical portion and the second cylindrical portion together and is in contact with a shaft member between the first wall and the second wall to receive a driving force, a second wall opposed to the first wall, and a connecting portion connecting the first cylindrical portion and the second cylindrical portion and connecting the first wall and the second wall. A groove is provided inside the first cylindrical portion and outside the second cylindrical portion. The connecting portion is disposed adjacent to the inwardly protruding portion with respect to the shaft member in the central axis direction.

Abstract: With a structure in which a coupling member includes a sphere providing a center of inclination (pivoting), a rotational force transmitted member has an opening have a diameter smaller than that of the sphere, and the coupling member is prevented from disengaging from rotational force transmitted member by contact of inner edge of the opening to the sphere, the inner edge of the opening may limit an inclinable (pivotable) angle range of the coupling member. In a state that a pin 88 which is a shaft portion is inserted in a hole 86b which is a through-hole provided in a coupling member 86, opposite end portions of the pin 88 are supported by a driving side flange 87 which is a rotational force transmitted member.

Abstract: An apparatus body includes an elastic body-side terminal, which is a terminal for supplying electricity to a cartridge. The cartridge includes: a developing apparatus that develops as a developer image an electrostatic latent image formed on an image bearing member; a cartridge-side terminal for supplying electricity from the apparatus body; and a frame having an opening that exposes the cartridge-side terminal. In a process of attaching the cartridge to the apparatus body, the body-side terminal makes contact with the cartridge-side terminal by being inserted into the opening. The body-side terminal presses the cartridge-side terminal in a state in which the cartridge is attached to the apparatus body.

Abstract: With a structure in which a coupling member includes a sphere providing a center of inclination (pivoting), a rotational force transmitted member has an opening have a diameter smaller than that of the sphere, and the coupling member is prevented from disengaging from rotational force transmitted member by contact of inner edge of the opening to the sphere, the inner edge of the opening may limit an inclinable (pivotable) angle range of the coupling member. In a state that a pin that is a shaft portion is inserted in a hole that is a through-hole provided in a coupling member, opposite end portions of the pin are supported by a driving side flange, which is a rotational force transmitted member. The coupling member, the driving side flange, and the pin are connected in this manner, and the pin contacts the inside of the hole without limiting the inclinable angle range.

Abstract: The present invention provides a cartridge which is dismountable from the main assembly without deteriorating usability performance in a predetermined direction substantially perpendicular to the rotational axis of an image bearing member, the main assembly being not provided with the mechanism for moving the main assembly side engaging portion in the rotational axis direction in response to the opening and closing operation of the main assembly cover of the main assembly. With the movement of the cartridge in such a direction perpendicular to the rotational axis of the image bearing member in the dismounting of the cartridge from the main assembly of the electrophotographic image forming apparatus, the coupling member movable in a direction parallel with the rotational axis of the image bearing member enters a inside of a recess of the main assembly side engaging portion provided in the main assembly of the apparatus to receive a rotational force from the main assembly side engaging portion.

Abstract: A cartridge including a photosensitive drum, a cleaning unit that supports the photosensitive drum, a process member that acts on the photosensitive drum, the cartridge being detachable from a main body of the image forming apparatus in a rotational axial direction of the photosensitive drum. The cartridge further including a first position determination position determining a downstream position with respect to the main body in a mounting direction of the photosensitive drum, and a second position determination portion that determines an upstream position with respect to the main body in the mounting direction. Furthermore, in a cross section orthogonal to the mounting direction, a distance from an axis of rotation of the photosensitive drum to the second position determination portion in a predetermined direction is larger than a distance from the axis of rotation to the first position determination portion in the predetermined direction.

Abstract: A cartridge insertable into a main assembly of an image forming apparatus includes a first unit including a first bearing portion for supporting an image bearing member, a second unit including a second bearing portion for supporting a developer carrying member, and a storing medium including an electrical contact. The second bearing portion is provided inside the first bearing portion with respect to a rotational axis direction of the image bearing member. At least a part of the storing medium is supported by the second unit and is provided at a position outside the second bearing portion and inside an outermost configuration of the first unit with respect to the rotational axis direction. The electrical contact is faced toward a downstream with respect to an inserting direction of the cartridge into the main assembly.

Abstract: A cartridge includes a cover member that includes a flat portion, a substantially circular hole portion formed in the flat portion, an arc portion inserted through the hole portion, a first cutaway portion having a shape formed by cutting in the hole portion radially outward, the first cutaway portion arranged in a position opposed to the protrusion portion when viewed in a direction of a rotational axis, and a second cutaway portion having a shape formed by cutting the flat portion toward a photosensitive drum in the direction of the rotational axis to expose a coupling member when viewed in a direction orthogonal to the rotational axis.