In the case that a developer supply container is provided with a feeding portion for feeding a developer by receiving a rotational force and a pump portion for discharging the developer by reciprocation, and the rotational force and a reciprocating force are received from a main assembly side of an image forming apparatus, there is a liability that a driving connection is not properly established between a portion of the developer supply container for receiving the reciprocating force and a portion of the main assembly side for applying the reciprocating force.

The developer supply container is provided with a drive converting mechanism for converting the rotational force received from the main assembly side to a force for operating a volume changing type pump.

An image forming apparatus includes: a housing; a process cartridge including a photoconductive drum and a developing roller; a toner cartridge containing toner; and a drawer movable between an inner position and an outer position. The process cartridge includes a lock member movable between a lock position at which the lock member locks the process cartridge to the drawer, and a release position at which a lock between the process cartridge and the drawer is released. The lock member is located at the lock position in a state in which the process cartridge is mounted to the drawer, and the toner cartridge is mounted to the process cartridge. The lock member is located at the release position in a state in which the process cartridge is mounted to the drawer, and the toner cartridge is removed from the process cartridge.

A toner cartridge for an imaging apparatus includes a housing to accommodate toner, and an inlet port and an outlet port formed in the housing. The outlet port supplies the toner to a developing device of the imaging apparatus. The inlet port receives a residual toner removed from an image carrier of the developing device as a recycled toner.

A cartridge attachable to an apparatus main body of an image forming apparatus, the apparatus main body having a restricting portion and to which the cartridge is mounted by being moved from a unmounted position to a mounting-completed position in a first direction, the cartridge includes a developer container provided with a supply port, and a shutter movable between an opening position for opening the supply port and a closing position for closing the supply port, having a restricted portion, and configured to be in the closing position when the cartridge is in the unmounted position and be in the opening position when the cartridge is in the mounting-completed position, wherein a movement of the shutter in a second direction perpendicular to the first direction is restricted by an engagement between the restricting portion and the restricted portion when the cartridge is in the mounting-completed position.

A toner cartridge includes a casing, a developing roller, a holder, a toner memory, an electrical contact and a wiring. The holder is positioned at an outer surface of one side in a first direction of the casing. The electric contact surface is positioned at an outer surface of one side in a second direction of the holder. The second direction crosses the electric contact surface. The electrical contact is positioned on an outer surface of another side in the second direction of the holder. The wiring electrically connects the electrical contact and the electric contact surface. The electric contact surface includes a first electric contact surface and a second electric contact surface. The first electric contact surface electrically is connected to the electrical contact through the wiring. The second electric contact surface electrically is connected to the toner memory.

An image forming apparatus is disclosed. The image forming apparatus includes a print engine to perform a printing job using toner filled in a toner cartridge, a communicator to communicate with a memory chip attached to a toner refill apparatus which refills the toner cartridge with toner, a memory to store group information corresponding to a plurality of image forming apparatuses for sharing the toner refill apparatus, and a processor to determine whether or not the toner refill apparatus is usable based on information stored in a memory chip of the toner refill apparatus and group information stored in the memory.

A toner cartridge includes a cartridge body having a dispensing port. An interface mechanism is coupled with the cartridge body. The interface mechanism includes at least one detent movably coupled with the cartridge body. The at least one detent includes a retaining surface, a shuttle surface and a bias element coupled with the detent. At least one detent guide is coupled with the cartridge body, and the at least one detent guide includes a guide channel aligned with the retaining surface. The cartridge body is configured for installation in an image forming apparatus between intermediate and fully installed configurations. In the intermediate installed configuration a feature of the image forming apparatus is within the guide channel and the shuttle surface depresses the detent. In the fully installed configuration the bias element deploys the retaining surface into intercepting alignment with the feature.

A developer vessel includes a container that includes a discharge port through which developer is discharged, and a transport portion that rotates to transport the developer toward the discharge port, a first protrusion that protrudes from an outer surface of the container, a second protrusion that protrudes from the outer surface at a position on an opposite side to the first protrusion with a virtual line being interposed between the first and second protrusions, the virtual line passing through a rotational axis of the transport portion and on a plane perpendicular to the rotational axis of the transport portion and being parallel to the discharge port, and an extending portion that is disposed at an outer end of each of the first and second protrusions on the plane and that extends in a direction intersecting with the respective first and second protrusions.

In one embodiment, a toner container comprises a toner container body in which toner is stored, a cover portion configured to cover the toner container body, and a projection. The projection is provided in the vicinity of a rear end portion in a longitudinal direction of the cover portion or a longitudinal direction of the toner container body, and projecting toward a rear side of the toner container.

An image forming apparatus includes a main body casing; a first drum unit including a first photosensitive drum configured to rotate about an axis extending in a first direction; a second drum unit including a second photosensitive drum configured to rotate about an axis extending in the first direction; a belt; a cleaning member configured to clean the belt; an auger configured to convey waste toner cleaned by the cleaning member; a first toner cartridge including a first new toner containing unit configured to supply new toner and a waste toner containing unit configured to contain the waste toner conveyed by the auger; and a second toner cartridge including a second new toner containing unit configured to supply new toner to the second drum unit. The waste toner containing unit is aligned with the first new toner containing unit in a second direction perpendicular to the first direction.