A developing device includes a frame, a cylindrical developer carrying member rotatably supported by the frame and configured to carry a developer containing toner particles, and a regulating member fixed to the frame at one end thereof and including a contact portion which contacts the developer carrying member at the other end of the regulating member and which forms a contact nip between the regulating member and the developer carrying member. When a position of the contact portion where a maximum of a pressure distribution of the contact portion to the developer carrying member with respect to a rotational direction of the developer carrying member is indicated is a reference position, the contact portion includes a first surface portion positioned upstream of the reference position and a second surface portion positioned downstream of the reference position with respect to the rotational direction.

An image forming apparatus to form a toner image on a recording material includes a photosensitive member and an optical scanning unit. The optical scanning unit includes an optical scanning unit, an optical box, a cover member, and a moving unit movable to an outside of the image forming apparatus. The optical scanning unit and the moving unit are arranged so that the moving unit and the optical scanning unit are opposed to each other when the moving unit is located in an inside of the image forming apparatus. The optical scanning unit is disposed so as to allow a user to touch the optical scanning unit through a space generated in the inside of the image forming apparatus when the moving unit is moved to the outside of the image forming apparatus. Between the optical box and the cover member, the cover member is opposed to the moving unit.

An image forming apparatus includes a body casing, a pressing member, a process cartridge, and a drawer. The body casing includes a positioning member. The pressing member is disposed inside the body casing. The process cartridge includes a photosensitive drum. The drawer is configured to support the process cartridge and to move, in a sliding direction orthogonal to an axis direction of the photosensitive drum, between an inside position that is a position inside the body casing and an outside position that is a position outside the body casing. The process cartridge includes an engagement portion and a spring. The engagement portion is configured to be positioned by the positioning member. The spring is configured to be pressed by the pressing member such that the engagement portion is pressed toward the positioning member.

An image forming apparatus includes a main body housing, a drawer, a drum cartridge and a toner cartridge. The drawer is movable in a first direction between an inner position at which the drawer is located inside the main body housing and an outer position at which the drawer is located outside the main body housing. The drum cartridge includes a photosensitive drum. The drum cartridge is attachable to and detachable from the drawer. The toner cartridge accommodates toner. When the drum cartridge is attached to the drawer and the drawer is at the inner position, the toner conveyor conveys toner from the toner cartridge to the drum cartridge.

The present invention relates to an apparatus (100) for extracting toner from a toner cartridge comprising an inlet opening (1), a first outlet opening (2) for discharging toner, and a second outlet opening (3) for discharging toner cartridges. The apparatus (100) also comprises: a toner cartridge opening device (10) configured to break a toner cartridge so that the toner may be removed from inside said toner cartridge; a separating device (20) connected to said opening device (10) for receiving broken toner cartridges from said opening device, and configured to separate toner from a respective toner cartridge broken by said opening device (10), said separating device (20) being further configured to separately convey the broken toner cartridge to said second outlet opening (3) and toner separated from said broken toner cartridge to said first outlet opening (2).

In some examples, an apparatus can include a cartridge flange, and a grip structure including an inner surface to receive an expansion member included in an imaging device, where the expansion member is to expand from a first diameter to a second diameter to be received by the grip structure.

A replaceable unit for an electrophotographic image forming device includes a housing having a reservoir for holding toner. An electrical connector is positioned on a first side of the housing. The electrical connector includes an electrical contact for contacting a corresponding electrical contact in the image forming device. The electrical contact of the replaceable unit is electrically connected to processing circuitry mounted on the housing. The electrical connector is movable between a first position and a second position. The electrical contact of the replaceable unit moves outward from the first side of the housing along a side-to-side dimension of the housing when the electrical connector moves from the first position to the second position. The electrical contact of the replaceable unit faces downward when the electrical connector is in the second position permitting the corresponding electrical contact to contact the electrical contact of the replaceable unit from below.

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 drive transmission device includes a drive train including a plurality of drive transmitters, and a container. The plurality of drive transmitters of the drive train transmit a driving force of a drive source to a rotator rotatable around a shaft and a swing member rotatable around a shaft different from the shaft of the rotator. The container contains the drive train.

An image forming apparatus includes a first moving member moving between a first position which is a position not in contact with a recording material and a second position which is a position in contact with the recording material, and a second moving member positioned in a third position in a state where an attachable/detachable unit is not attached to an apparatus main body and in a fourth position in a state where the attachable/detachable unit is attached to the apparatus main body. An optical sensor includes a light-emitting portion and a light-receiving portion, and a flag member moves between a transmission position and a light-shielding position and moves in conjunction with movement of the first moving member from the first position to the second position and with a movement of the second moving member from the third position to the fourth position.