An image forming apparatus including a main body casing, a cover, a drum cartridge, a developing cartridge, an intermediate transfer belt and a movable cam. The movable cam is movable among a first position when the cover is in the open position, a second positon and a third position when the cover is in the closed position. In a case where the movable cam is in the first position, the photosensitive drum is in a first drum position spaced from the intermediate transfer belt, and the developing roller is in a first developing position spaced from the photosensitive drum. In a case where the movable cam is in the second position, the photosensitive drum is positioned toward the the intermediate transfer belt from the first drum position. In a case where the cam is in the third position, the developing roller is positioned toward the photosensitive drum from the first developing position.

A drum cartridge includes: a photosensitive drum rotatable about an axis extending in a first direction; a first drum frame to which a developing cartridge is attachable; and a second drum frame having an outer surface; and a memory having an electrical contact surface. The first drum frame is at one end portion of the drum cartridge in a second direction and the second drum frame is at another end portion of the drum cartridge in the second direction. The electrical contact surface is positioned at the outer surface of the second drum frame and is movable in a predetermined direction relative to the second drum frame.

A developing cartridge and an electronic imaging apparatus, where the developing cartridge is detachable installed in the electronic imaging apparatus, and includes a cartridge, a power reception member, a rotary member and an activation member; the cartridge includes a first side wall and a second side wall provided opposite to each other along a first direction, where a power reception member is located at the first side wall, a rotary member is installed between the first side wall and the second side wall, one end of the rotary member is provided with a first gear, and the other end of the rotary member is provided with a second gear, an activation member is located at the second side wall; and the activation member includes a movable member and a trigger part provided at the movable member.

A developing cartridge includes: a casing; a developing roller extending in a first direction; a boss movable with the casing; and a first lever movable relative to the casing. The first lever includes: one end portion functioning as a point of effort; another end portion functioning as a point of load; a shaft functions as a fulcrum and positioned between the one end portion and the another end portion; and a first hole into which the boss is fitted. By the one end portion receiving a driving force, the first lever is pivotally movable about the shaft. A dimension of the first hole in a second direction crossing the first direction is greater than a dimension in the second direction of the boss. In a case where the casing moves in the second direction relative to the first lever, the boss moves in the second direction within the first hole.

The present disclosure provides a consumable chip, a consumable, an image-forming apparatus, a communication method, and a detection method. The consumable chip includes the first connection terminal, configured to be connected to the first connection pin when the consumable is installed on the image-forming apparatus; the second connection terminal, configured to be connected to the second connection pin when the consumable is installed on the image-forming apparatus; the power supply circuit, configured to convert the first input signal and the second input signal received through the first connection terminal and the second connection terminal into a DC voltage to supply power to the microcontroller; the demodulation circuit, configured to demodulate the first input signal and the second input signal to obtain demodulated signals; and the modulation circuit, configured to send modulation signals to the image-forming control unit through the first connection terminal and the second connection terminal.

An image forming apparatus includes a drive source, an object configured to be driven by the drive source, and a drive transmission mechanism including a driving member, a driven member, an intermediate member, an urging member, and an actuating portion. The intermediate member is configured to move in an axial direction. The intermediate member includes a shaft portion extending in the axial direction, and a positioning portion configured to determine a position of the driven member in a direction orthogonal to the axis. The shaft portion includes a receiving portion configured to receive a force. The receiving portion is positioned inward of the positioning portion in a radial direction of rotation of the intermediate member.

An image forming apparatus includes a drive source, an object configured to be driven by the drive source, and a drive transmission mechanism including a driving member, a driven member, an intermediate member, an urging member, and an actuating portion. The intermediate member is configured to move in an axial direction. The intermediate member includes a shaft portion extending in the axial direction, and a positioning portion configured to determine a position of the driven member in a direction orthogonal to the axis. The shaft portion includes a receiving portion configured to receive a force. The receiving portion is positioned inward of the positioning portion in a radial direction of rotation of the intermediate member.

An image forming apparatus including a photosensitive member, a developing cartridge that has a developing member, a developing frame, an end member attached to the developing frame, and a restricting portion restricting a swing movement of the end member, and an apparatus body to which the developing cartridge is attachable. The apparatus body includes a movement unit moving the developing cartridge from a first position to a second position, a positioning portion engaging with the end member when the developing cartridge is located at the second position, and a restriction releasing portion acting on the restricting portion with a movement of the developing cartridge from the first position to the second position and releasing restriction of the swing movement of the end member, the restriction releasing portion being provided at a part of the apparatus main body excluding the movement unit.

A drawer includes: a photosensitive drum; a drawer frame; a connector; a drawer memory; and a holder. The photosensitive drum is rotatable about a drum axis extending in a first direction. The drawer frame holds the photosensitive drum. The drawer frame has an outer surface. The connector has a plurality of terminals arrayed in an arraying direction. The drawer memory stores information on the photosensitive drum. The drawer memory is electrically connectable to at least one of the plurality of terminals. The holder is positioned at the outer surface of the drawer frame and holds the connector. The holder is movable relative to the drawer frame in the arraying direction of the plurality of terminals.

In an image forming apparatus, a sheet is guided into a first conveyor path or a second conveyor path selectively when a first cover is in a closed position, and is ejected onto the first cover when the first cover is in an open position. Upon power-up, a controller causes a first conveyor roller to rotate but if the first cover is in the open position, when a sheet sensor detects a sheet, the controller does not cause a second conveyor roller to rotate, and causes a flapper to swing from a first position to a second position, and when a front end of the sheet reaches a position downstream of an upstream end of the flapper in a conveyance direction of the sheet conveyed by the first conveyor roller, the controller causes the flapper to swing from the second position to the first position.