A cartridge includes a photosensitive drum, the movable member movable relative to the photosensitive drum to control an inclination angle of a drive transmission member. The movable member is movable between a first position for reducing an inclination angle of the drive transmission member relative to the photosensitive drum and a second position retracted from the first position. By this, driving connection can be smoothly carried out.

A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.

An image forming apparatus includes a housing, a drum cartridge, a developing cartridge including a developing roller and movable between a contact position and a spaced position, a first spacing member configured to move the developing cartridge between the contact position and the spaced position, a first cam configured to move the first spacing member, and a lock member movable between a lock position at which the photoconductive drum is locked to the housing and a lock releasing position at which the lock of the photoconductive drum with respect to the housing is released. The lock member is configured to move from the lock releasing position to the lock position by being pushed by the first spacing member.

Provided is a processing cartridge detachably installed in an imaging device. The processing cartridge includes a first unit and a second unit, and a movable assembly coupled to and receive force from the force applying portion. When the processing cartridge is assembled to the imaging device, the first t and second units can be switched between states of approaching and separating. The movable assembly comprises an installing part and an acting part movable relative to and connectable with each other. The movable assembly is installed in the processing cartridge by the installing part, the acting part is coupled to the force applying portion and receives force from the force applying portion, to force the first and second units to switch between the two states. The acting part is retractable relative to the installing part and comprises an acting block and a guide block guided by the installing part.

An image forming apparatus includes a cartridge and a main body into which the cartridge is removably installed. The cartridge includes a first unit and a second unit that is movably connected to the first unit. The main body includes a rotating member, a supporting member disposed at a position away from the rotating member, and a swingable member that is pivotally movable about the supporting member and configured to be moved by the rotating member. The swingable member is movable between a first position at which the swingable member is in contact with the second unit and a second position at which the swingable member is retracted from the first position. Installation and removal of the cartridge into and from the main body is enabled in a state where the swingable member is at the first position and is supported by the rotating member.

A process cartridge includes a developing cartridge having a developing roller; a drum cartridge having a photosensitive drum; and a first end cover and a second end cover The developing cartridge is rotatably supported on the first end cover and the second end cover A separation force receiving member is mounted at developing cartridge the separation force receiving member includes a force-receiving portion, a force transmission portion and a sliding guide portion; the force-receiving portion is used for receiving an acting force that makes the developing cartridge rotate to the separation position; the sliding guide portion and the first end cover are arranged in a manner of being able to slide relative to each other; and when the separation force receiving member slides relative to the first end covert, the force transmission portion synchronously drives the developing cartridge to rotate.

A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting the coupling.

An image forming apparatus includes a detachable unit attachable to and detachable from an apparatus body, a preceding unit configured to move relative to the apparatus body before the detachable unit is attached to or detached from the apparatus body, and an adhesion-suppressing component provided on the preceding unit and configured to suppress adhesion of floating matter in the apparatus body to a grip of the detachable unit by covering the grip.

A cartridge including: a first unit including an image bearing member and a first portion, and configured to take a removal posture when the cartridge is to be removed from a main body; a second unit including a developer bearing member and a second portion, the second unit being movable between a first position where the developer bearing member is in contact with the image bearing member and a second position where the developer bearing member is separated from the image bearing member and where the second portion is in contact with the first portion, wherein when the first unit takes the removal posture, the second unit is located at the second position, and when the second unit is located at the second position, movement of the second unit in a direction, in which the developer bearing member is separated from the image bearing member, is restricted.

A cartridge includes a photosensitive drum, the movable member movable relative to the photosensitive drum to control an inclination angle of a drive transmission member. The movable member is movable between a first position for reducing an inclination angle of the drive transmission member relative to the photosensitive drum and a second position retracted from the first position. By this, driving connection can be smoothly carried out.