A cleaning apparatus includes an endless belt configured to bear a toner image, a rotary member configured to be wound around by the belt, and configured to rotate integrally with the belt, a bearing configured to rotatably support the rotary member, a cleaning unit configured to come into contact with a surface of the belt and collect an adhering matter adhered onto the surface, an urging member configured to urge the cleaning unit toward the surface of the belt, and a support member configured from a single member and including a first supporting portion, a second supporting portion, and a third supporting portion. The first supporting portion rotatably supports the belt via the bearing and the rotary member. The second supporting portion pivotably supports the cleaning unit. The third supporting portion supports the urging member.

An image forming apparatus includes an image forming portion, a belt unit including a cleaning unit and an opposing roller, and a swinging mechanism. The swinging mechanism includes a swingable member which is provided in a position different from a rotation center of the opposing roller while holding the opposing roller and the cleaning unit without changing a relative positional relationship between the opposing roller and the cleaning unit and which is swingable about a swing axis.

An image forming apparatus is capable of being attached with a toner supply container. The toner supply container stores a toner that is to be supplied to a developing portion. An attachment location of the toner supply container is below a light scanning portion in a vertical direction.

An image forming apparatus includes an image forming portion, a transfer belt, a secondary transfer portion, a cleaning member contacting a surface of the transfer belt for cleaning the surface of the transfer belt, a fixing device, an exhausting device, a duct portion and a sheet member. The sheet member is provided on the exhausting device so as to project toward the transfer belt from the exhausting device, the sheet member being opposed to transfer belt and separated by a predetermined space downstream of the transfer portion and upstream of the cleaning member with respect to a rotational direction of the transfer belt, and being configured to prevent air flow between the exhausting device and the transfer belt from flowing downstream with respect to the rotational direction.

An image forming apparatus includes an image bearing member, an apparatus body including a transfer member movable between a first position and a second position, an opening/closing member. The apparatus body includes a movement mechanism configured to move the transfer member in accordance with a movement of the opening/closing member. The movement mechanism includes a first movable member and a second movable member. The first movable member is configured to move a first end portion of the transfer member from the first position to the second position. The second movable member is configured to move a second end portion of the transfer member from the first position to the second position.

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 friction reduction system for reducing friction of an intermediate transfer member (ITM) of a printing system, while the ITM is guided along the printing system by a guiding arrangement. The friction reduction system includes a fluid reservoir mounted within the printing system, a fluid depositing arrangement disposed along the ITM, and a control mechanism, adapted to control depositing of fluid, from the fluid depositing arrangement onto the guiding arrangement or onto at least a portion of the ITM. Depositing of the fluid reduces friction between the ITM and the guiding arrangement.

An image forming apparatus includes an image forming portion, a belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, an urging member, a first position changing mechanism, a storing portion, a controller, and an operating portion. The controller controls the first position changing mechanism on the basis of a kind of a recording material on which an image is formed, first set information stored in the storing portion, and first input information for changing setting of a position of the urging member inputted to the controller through the operating portion.

An image forming apparatus includes a photosensitive member, a developing member to supply a toner to the photosensitive member at a developing portion, a transfer member to transfer a toner image to a recording material passing through a transfer portion from the photosensitive member. In a case which the transfer is performed to a smaller width recording material and thereafter, the transfer is successively performed to a larger width recording material, a control portion controls a first back contrast formed when an area of a surface of the photosensitive member corresponding to the transfer portion through which the smaller width recording material is passing reaches the developing portion, and a second back contrast formed when an area of the surface corresponding to the transfer portion through which the larger width recording material is passing reaches the developing portion so that the second back contrast is larger than the first back contrast.

An intermediate transfer body includes a base layer and a surface layer disposed on the base layer, in which surface layer includes a sea-island structure that includes a sea phase and an island phase, in which the sea phase includes a resin, the island phase including an organopolysiloxane.