An information processing apparatus is communicably connected to an image forming apparatus and acquires a consumption amount of a consumable in the image forming apparatus, outputs a delivery request for a replacement consumable based on the acquired consumption amount, and notifies information for prompting to stock a spare replacement consumable based on the consumption amount.

An image forming apparatus includes an image bearing member, a cleaning device detachably provided on a main assembly to clean toner remaining on the image bearing member, a main assembly feeding portion detachably provided on the main assembly to feed the toner discharged from the cleaning device, a collecting container detachably provided on the main assembly to collect the toner discharged from the main assembly feeding portion, a control portion, and an operating portion capable of inputting a predetermined instruction to the operating portion. Without an image forming operation based on the predetermined instruction, the control portion performs a discharging operation in which the main assembly feeding portion is caused to be driven to discharge the toner inside of the main assembly feeding portion.

The present disclosure is directed to a diagnostic apparatus comprising: one or more memory devices that store a set of instructions; and one or more processors that execute the set of instructions to: select and set, in response to a user operation, a timing for repairing an image forming unit in a case where a sign indicating that the image forming unit is abnormal is detected; perform diagnosis of an abnormality and a sign thereof of the image forming unit based on an image formed by the image forming unit; and execute repair processing of the image forming unit at the set timing when the sign of the abnormality is detected.

A print setting controller decides whether a combination of a sheet size and a sheet type specified for print setting is included in a combination table. When the combination of the sheet size and the sheet type specified for the print setting is included in the combination table, a controller executes a print job according to the print setting. When the combination of the sheet size and the sheet type specified for the print setting is not included in the combination table, the print setting controller selects a sheet type appropriate for the sheet size specified as the print setting, from the combination table, and changes the sheet type thus far designated to the selected sheet type. A display controller causes a display device to display a message to the effect that the sheet type has been changed.

To change a print control value included in sheet information, it has been difficult to appropriately change a static elimination applied voltage value included in the sheet information if the print control value that influences an amount of charge on a sheet is changed. A control method of a printing system including a static elimination apparatus includes storing sheet information including a print control value and a static elimination applied voltage value in a storage device, changing the print control value included in the sheet information stored in the storage device, and changing the static elimination applied voltage value included in the sheet information stored in the storage device based on a changed print control value in a case where the print control value that influences an amount of charge on a sheet is changed.

An image processing apparatus includes a printer to perform printing using an expendable supply for at least one of a plurality of different colors, and a controller to, when receiving, via a user interface, an ordering operation to order a particular type of supplies selected on an order screen, place an order for the particular type of supplies to an information processing device via a communication interface, and store history information on the particular type of supplies into a memory, the history information indicating an order history of the particular type of supplies and containing information generated based on a most recent order date of the particular type of supplies, and in response to a display trigger, read out the history information on the particular type of supplies from the memory, and display the read history information on a display such that the particular type of supplies is identified.

An input device is mountable on an image forming apparatus including a display portion capable of displaying information and is a numerical key unit 70 at least including a numerical key portion 110 consisting of a hardware key capable of inputting information on a numerical value and a start key 131 consisting of a hardware key capable of inputting information for starting predetermined processing. The start key 131 is disposed on a front side F than the numerical key portion 110 in a state in which the numerical key unit 70 is mounted on the image forming apparatus.

An information processing apparatus is communicably connected to an image forming apparatus and acquires a consumption amount of a consumable in the image forming apparatus, outputs a delivery request for a replacement consumable based on the acquired consumption amount, and notifies information for prompting to stock a spare replacement consumable based on the consumption amount.

An information processing apparatus which communicates with an image forming apparatus that forms an image on a sheet, the information processing apparatus includes: an acquisition unit configured to acquire error information about an error that has occurred in the image forming apparatus, and maintenance information about maintenance work performed on the image forming apparatus; a memory configured to store a plurality of pieces of error information acquired by the acquisition unit; and a controller. The controller is configured to: determine, from the plurality of pieces of error information stored in the memory, based on the maintenance information, first error information about an error that has occurred during the maintenance work; and determine an error part of the image forming apparatus based on second error information obtained by excluding the first error information from the plurality of pieces of error information stored in the memory.

A display control device includes a display section and a display controller. The display controller controls the display section so as to cause the display section to display a first image (703a to 703f) and a second image. The first image (703a to 703f) is displayed in an upper layer for the second image. The first image (703a to 703f) represents a category item. The second image represents a setting item belonging to the category item. The display controller controls the display section so as to cause the display section to display a predetermined image (705) in the first image (703a to 703f) according to the setting item that has been entered.