A powder collection container accommodates a powder discharged from a discharge port of a powder discharge device including a powder discharger provided with a shutter member that opens and doses the discharge port. The powder collection container includes a moving member that is movable between a first position where the moving member abuts against the shutter member to open the discharge port of the powder discharge device, and a second position where the moving member does not abut against the shutter member and the discharge port of the powder discharge device is not opened.

A powder collection container accommodates a powder discharged from a discharge port of a powder discharge device including a powder discharger provided with a shutter member that opens and doses the discharge port. The powder collection container includes a moving member that is movable between a first position where the moving member abuts against the shutter member to open the discharge port of the powder discharge device, and a second position where the moving member does not abut against the shutter member and the discharge port of the powder discharge device is not opened.

An image forming apparatus includes a first body, an image forming portion, a first conveying passage provided inside of the first body and to convey toner discharged from the image forming portion, a second body detachably connected to the first body, and a second conveying passage to convey the toner received from the first conveying passage. The second conveying passage receives the toner from the first conveying passage in the first body. The second conveying passage is projected from the first body into the second body when the second body is connected to the first body, and is detachable from the first body while leaving the first conveying passage in the first body.

An image forming apparatus includes a first body, an image forming portion, a first conveying passage provided inside of the first body and to convey toner discharged from the image forming portion, a second body detachably connected to the first body, and a second conveying passage to convey the toner received from the first conveying passage. The second conveying passage receives the toner from the first conveying passage in the first body. The second conveying passage is projected from the first body into the second body when the second body is connected to the first body, and is detachable from the first body while leaving the first conveying passage in the first body.

An image forming apparatus includes a plurality of photosensitive drums, an intermediate transfer belt, a cleaning member to contact an inner surface of the intermediate transfer belt to remove impurities from the intermediate transfer belt, a storage member including a storage to accommodate the impurities removed by the cleaning member, and a shutter movable to a first location at which the storage is opened and a closing location at which the storage is closed.

A toner-and-developer supply device includes a toner container to contain toner and a developer container to contain a developer. The toner container has a toner discharge port, and the toner container is rotatable about a rotational axis to transport the toner toward the toner discharge port. The developer container has a toner-and-developer discharge port. The developer container is rotatably coupled to the toner container to transport the developer toward the toner-and-developer discharge port when the toner container rotates in a given direction relative to the developer container.

An image forming apparatus includes a print engine, a waste toner collecting device, and a waste toner transfer auger. The waste toner collecting device includes a waste toner container, a sensor disposed on one side of the waste toner container, and a rotatable dispersing member which moves waste toner flowing into the waste toner container to another side of the waste toner container.

An image forming apparatus includes a print engine, a waste toner collecting device, and a waste toner transfer auger. The waste toner collecting device includes a waste toner container, a sensor disposed on one side of the waste toner container, and a rotatable dispersing member which moves waste toner flowing into the waste toner container to another side of the waste toner container.

A toner collection device includes a toner collection container, a toner conveying passage, a side wall, a recessed sensing portion, and a detection sensor. The toner conveying passage includes a first inclined portion provided right under a toner collection port and inclined downward leftward in the left-right direction perpendicular to the up-down direction and a second inclined portion connected to a bottom end part of the first inclined portion and inclined downward frontward in the front-rear direction perpendicular to the up-down and left-right directions, with an end part of the second inclined portion on the left side in contact with the inner wall face of the toner collection container on the left side. The recessed sensing portion has an opening between a top end part of the side wall and the inner wall face of the toner collection container.

A toner guide member includes a toner discharge port that is located above and faces a toner introduction port of a waste toner container, and the toner guide member forms, in its inside, a passage of waste toner from an end portion of a drum cleaning device to a toner discharge port. A first paddle conveyance member including a plurality of first blade portions rotates in a first rotation direction in the toner guide member. A second paddle conveyance member including a plurality of second blade portions rotates in a second rotation direction that is opposite to the first rotation direction, at a position lower than the first paddle conveyance member. A pivotal trajectory of the plurality of first blade portions partially overlaps with a pivotal trajectory of the plurality of second blade portions.