A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.

An image forming apparatus is provided. The image forming apparatus includes a print engine to perform a print job by using a toner filled in a toner cartridge, a communication apparatus to communicate with a memory chip attached to a toner refill apparatus refilling the toner in the toner cartridge, and a processor to, based on an error being found in a toner injection process for the toner cartridge by using the toner refill apparatus, store information related to the error in the toner cartridge.

An image processing apparatus includes an image reader, an input operation unit including a display, an interface configured to receive, from an external medium, setting information for processing of an image read by the image reader, and a controller. The controller is configured to control the display to display a first setting screen for processing the image when the setting information is not received from the external medium and to control the display to display a second setting screen for processing the image when the setting information is received from the external medium. The second setting screen indicates that an operational setting designated by the setting information has already been set on the image processing apparatus.

According to one embodiment, an image forming apparatus includes a reading unit, a heating unit, and an updating unit. The reading unit reads area designation information for designating an area to be decolored in areas of a sheet on which an image that can be decolored by heating is formed and history information for indicating the number of times of performing decoloration in the past for each area of the sheet from a wireless tag attached to the sheet. The heating unit heats the area based on the area designation information read by the reading unit. The updating unit updates the history information stored in the wireless tag which corresponds to the area heated by the heating unit.

According to one embodiment, an image forming apparatus includes a developing device, a sensor, a control information obtaining unit, and a control unit. The developing device forms an image on an image carrier using a developer. The sensor generates a signal indicating a measurement value related to the developer. The control information obtaining unit obtains, as control information of the developing device, one or more pieces of the control information pre-associated with the measurement value, from a recording medium associated with the developer. The control unit selects the control information associated with the measurement value indicated by the signal, from the one or more pieces of control information obtained from the recording medium. The control unit controls an operation of the developing device based on the selected control information.

An image forming apparatus includes first and second casings, a support portion, a control panel, and a USB port. The first casing houses an image forming unit and includes a sheet discharge tray configured to support a sheet discharged by a discharge roller. The second casing is disposed above the first casing, and houses an image scanner. The support portion is disposed at a top surface of the first casing such that the support portion support raises the second casing, and partially defines an open portion that enables an access to the sheet discharged on the sheet discharge tray. The control panel is disposed at the second casing. A downstream end portion of the control panel is positioned downstream of the discharge roller in a discharging direction. The USB port is positioned above the sheet discharge tray, and overlaps, when viewed from the top, with the sheet discharge tray.

An image forming apparatus includes a storage unit configured to store correction data; an identifying unit configured to identify a correction amount for a correction target pixel based on the correction data stored in the storage unit; a correction unit configured to correct an exposure amount of the correction target pixel among a plurality of pixels indicated by image data, from an exposure amount indicated by the image data, based on the correction amount for the correction target pixel; and an image forming unit configured to form an image based on an exposure amount after correction by the correction unit. The correction data includes only a correction amount corresponding to each of representative parameter values of a plurality of parameter values of a parameter for varying the correction amount.

A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.

An image forming apparatus is provided with USB sockets on front and back sides, and includes a determining unit for determining whether or not a USB device inserted to a front side USB socket is a function enhancement device, and a control unit making, when it is determined by the determining unit that a function enhancement device is inserted to the front side USB socket, the USB device unusable and making, when it is determined that a USB device other than the function enhancement device is inserted, the USB device usable. Thus, it is possible to prevent a USB wireless LAN adapter or the like from being used constantly connected to the front side USB socket and thereby to reduce possibility of USB wireless LAN adapter of being damaged or removed.

A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.