Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet based on a mode selected from a plurality of modes having different image forming speeds; a memory configured to store first data for a first mode included in the plurality of modes, the first data indicating a correspondence for the first mode between a type of the sheet and the image forming speed, and second data for a second mode included in the plurality of modes, the second data indicating a correspondence for the second mode between a type of the sheet and the image forming speed; a display; and a controller configured to: determine a first image forming speed for the first mode from the first data based on the type of the sheet; and determine a second image forming speed for the second mode from the second data.

Abstract: An image forming apparatus includes an image forming unit to form an image on a sheet based on a mode selected from a plurality of modes having different image forming speeds, a memory to store first data for a first mode included in the plurality of modes, the first data indicating a correspondence for the first mode between a type of the sheet and the image forming speed, and second data for a second mode included in the plurality of modes, the second data indicating a correspondence for the second mode between a type of the sheet and the image forming speed, and a display. A controller determines a first image forming speed for the first mode from the first data based on the type of the sheet, and determines a second image forming speed for the second mode from the second data.

Abstract: An image forming apparatus including a fixing unit that fixes a toner image on a recording material includes an acquisition unit configured to acquire grammage information about the recording material, and a temperature control unit configured to control a temperature of a heating rotary member of the fixing unit based on the grammage information. The temperature control unit changes the temperature control of the heating rotary member depending on the acquired grammage information about a predetermined number of recording materials within a predetermined time.

Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet based on a mode selected from a plurality of modes having different image forming speeds; a memory configured to store first data for a first mode included in the plurality of modes, the first data indicating a correspondence for the first mode between a type of the sheet and the image forming speed, and second data for a second mode included in the plurality of modes, the second data indicating a correspondence for the second mode between a type of the sheet and the image forming speed; a display; and a controller configured to: determine a first image forming speed for the first mode from the first data based on the type of the sheet; and determine a second image forming speed for the second mode from the second data.

Abstract: An image forming system includes an image former configured to form an image on a sheet, an inspector configured to inspect the sheet on which the image has been formed by the image former and determine whether or not the image of the sheet has an abnormality, and a controller configured to, in a case where the inspector determines that the image of the sheet has the abnormality of positional deviation, perform an adjustment operation in which an image formation position by the image former is adjusted.

Abstract: An image forming system includes a controller to discharge to a first discharger a sheet determined not to have a product defect and discharge to a second discharger a sheet determined to have a product defect. The controller is configured to, in a case where it is determined that a first sheet on which an image has been formed has the product defect, execute an adjustment operation of adjusting image forming conditions for an image former, and execute a recovery process in which the image formed on the first sheet is formed on a second sheet by the image former with the product defect removed based on completion of the adjustment operation.

Abstract: An image forming system includes: an inspection unit configured to inspect a sheet and determine whether or not the sheet has a product defect; and a control unit configured to discharge to a first discharge unit the sheet not having the product defect and discharge to a second discharge unit the sheet having the product defect, wherein the control unit is configured to, in a case where the inspection unit determines that a first sheet has the product defect, execute a recovery process in which the image formed on the first sheet is formed on a second sheet, and the control unit is configured to, in a case where the inspection unit determines that the first sheet has the product defect, execute an operation of adjusting an image forming condition for the image forming unit prior to executing the recovery process.

Abstract: Provided is a technology relating to an image forming apparatus configured to calculate a toner usage amount per day. The image forming apparatus stores the calculated toner usage amount per day in a list when a toner usage history is permitted to be stored, and avoids storing the calculated toner usage amount per day in the list when the usage history is inhibited from being stored. When the toner usage history is permitted to be stored, the image forming apparatus extracts a feature amount indicating a toner consumption tendency exhibited by a user based on the toner usage amount per day corresponding to a predetermined period stored in the list, and avoids extracting the feature amount when the toner usage history is inhibited from being stored.

Abstract: An information processing apparatus that is capable of improving estimating accuracy of a usable period of a fixing device. The information processing apparatus enables communication with an image forming apparatus to which one of fixing devices is selectively attachable. A controller obtains information about a type of a fixing device attached, determines a remaining period of a second fixing device based on second data about a consumption amount of the second fixing device in a case where a first fixing device of a first type is replaced with the second fixing device of a second type, and determines a remaining period of a third fixing device based on first data about a consumption amount of the first fixing device and third data about a consumption amount of the third fixing device in a case where the first fixing device is replaced with the third fixing device of the first type.

Abstract: An information processing apparatus that is capable of improving estimating accuracy of a usable period of a fixing device. The information processing apparatus enables communication with an image forming apparatus to which one of fixing devices is selectively attachable. A controller obtains information about a type of a fixing device attached, determines a remaining period of a second fixing device based on second data about a consumption amount of the second fixing device in a case where a first fixing device of a first type is replaced with the second fixing device of a second type, and determines a remaining period of a third fixing device based on first data about a consumption amount of the first fixing device and third data about a consumption amount of the third fixing device in a case where the first fixing device is replaced with the third fixing device of the first type.

Abstract: An information processing apparatus that is capable of reducing a delay of delivery of a consumable even if a history of a consumption amount of a consumable is erased. The information processing apparatus that enables communication with an image forming apparatus equipped with a replaceable consumable. The information processing apparatus includes a memory that stores data related to a consumption amount of the consumable, and a controller configured to determine a future change of a remaining amount of the consumable from the data stored in the memory, issue a delivery request that requests delivery of a replacement consumable according to the future change of the remaining amount of the consumable, and receive user instruction information. The controller issues the delivery request in a case where a predetermined condition related to the remaining amount is satisfied in a predetermined period from reception of the user instruction information.

Abstract: An information processing apparatus that is capable of reducing a delay of delivery of a consumable even if a history of a consumption amount of a consumable is erased. The information processing apparatus enables communication with an image forming apparatus that has a consumable. The information processing apparatus includes a memory that stores data related to a consumption amount of the consumable, a controller configured to determine a future change of a remaining amount of the consumable from the data stored in the memory based on a first determination condition, control a timing at which a delivery request that urges delivery of a replacement consumable is output based on the future change, and receive user instruction information. The controller determines the future change from the data stored in the memory based on a second determination condition that is different from the first determination condition after receiving the user instruction information.

Abstract: Provided is a technology relating to an image forming apparatus configured to calculate a toner usage amount per day. The image forming apparatus stores the calculated toner usage amount per day in a list when a toner usage history is permitted to be stored, and avoids storing the calculated toner usage amount per day in the list when the usage history is inhibited from being stored. When the toner usage history is permitted to be stored, the image forming apparatus extracts a feature amount indicating a toner consumption tendency exhibited by a user based on the toner usage amount per day corresponding to a predetermined period stored in the list, and avoids extracting the feature amount when the toner usage history is inhibited from being stored.

Abstract: An image forming apparatus is capable of easily performing jam processing. When an occurrence of a jam of a sheet which is conveyed on a conveying path is detected, the image forming apparatus displays a jam processing display screen which guides processing in accordance with a position where the jam has occurred. After the processing in accordance with the jam processing display screen is performed, if a state of the jam remains unchanged, the image forming apparatus performs forced feeding, which forcibly conveys the sheet to a predetermined position. The image forming apparatus displays the jam processing display screen urging to perform processing in accordance with the position of the sheet after the sheet is forcibly conveyed.

Abstract: An image forming apparatus (10) is capable of continuing, when detecting running out of sheet in a cassette (130a) during image formation, the image formation by performing switching to another cassette (130b). When it is determined that sheets are run out based on a signal supplied from a sheet sensor (131a) of a cassette being used after exposure is started based on image data of a certain page, cleaning is performed on a secondary transfer roller (106) and exposure is started based on the image data of a target page before the cleaning is terminated.

Abstract: An image forming apparatus includes an intermediary transfer member; a first image forming portion including a first developing device and a detecting portion; a second image forming portion including a second developing device; a contact-and-separation mechanism capable of setting a first state and a second state; and an executing portion capable of executing an operation in a first monochromatic mode in the first state and capable of executing an operation in a second monochromatic mode in the second state. When a toner amount in the first developing device is below a predetermined amount on the basis of the detecting portion during an image forming operation for continuously forming the black image in the operation in the first monochromatic mode, the executing portion continuously executes the image forming operation in the second state.

Abstract: A controller of an image forming apparatus calculates a density difference between a measurement result of a toner image having the highest density formed on a photosensitive drum, which is obtained by an image density sensor, and the highest density of a density target. When the density difference falls within a predetermined range, the controller generates a tone correction table based on a density value of a first toner image formed with a plurality of densities including the highest density, and sets, based on the density difference, an exposure amount of laser light to be applied to the photosensitive drum by an exposure device. When the density difference falls out of the predetermined range, the controller generates the tone correction table based on a density value of a second toner image having a larger number of tone levels than that of the first toner image.

Abstract: An image forming apparatus (10) is capable of continuing, when detecting running out of sheet in a cassette (130a) during image formation, the image formation by performing switching to another cassette (130b). When it is determined that sheets are run out based on a signal supplied from a sheet sensor (131a) of a cassette being used after exposure is started based on image data of a certain page, cleaning is performed on a secondary transfer roller (106) and exposure is started based on the image data of a target page before the cleaning is terminated.

Abstract: An image forming apparatus includes an intermediary transfer member; a first image forming portion including a first developing device and a detecting portion; a second image forming portion including a second developing device; a contact-and-separation mechanism capable of setting a first state and a second state; and an executing portion capable of executing an operation in a first monochromatic mode in the first state and capable of executing an operation in a second monochromatic mode in the second state. When a toner amount in the first developing device is below a predetermined amount on the basis of the detecting portion during an image forming operation for continuously forming the black image in the operation in the first monochromatic mode, the executing portion continuously executes the image forming operation in the second state.

Abstract: An image forming apparatus includes a first image forming unit configured to form a first image in a chromatic color, a second image forming unit configured to form a second image in black, an intermediate transfer member, a sensor, a first adjustment unit configured to adjust the image forming position for the black based on an adjustment value, a second adjustment unit configured to adjust image forming position based on an adjustment condition, and a generation unit configured to generate the adjustment condition. The generation unit generates a first adjustment condition based on a user instruction relating to a first test image having chromatic color on a sheet input from the input unit. The generation unit generates a second adjustment condition based on the reading result of the second test image having black on a sheet from a reading device.