An image forming apparatus includes a plurality of sheet storage receptacles configured to store a sheet. The image forming apparatus also includes a fixing device having a heating belt and a pressure roller configured to heat and fix toner on the sheet conveyed from one of the plurality of sheet storage receptacles. The image forming apparatus also includes a processor and a memory configured to store temperature information associated with each sheet storage receptacle and related to temperature control of the fixing device, acquire type information of a sheet to be printed, in response to a predetermined condition, specify the sheet storage receptacle storing the sheet to be printed, and perform a first heating control that controls a temperature of the fixing device based on the stored temperature information associated with the specified sheet storage receptacle.

An image heating apparatus includes an image heating portion including a heater, a tubular film having an inner surface in contact with the heater, and a pressure member that is in contact with the outer surface of the film and forms a nip portion for conveying a recording material between the outer surface and the pressure member. The image heating portion heats an unfixed toner image on the recording material by the heater. A temperature detection portion detects the temperature of the heater. A control portion controls electric power to the heater such that the temperature detected by the temperature detection portion is maintained at a predetermined control target temperature. An obtainment portion obtains image information for forming the unfixed toner image. The control target temperature is set, based on the image information, for each of a plurality of regions defined by dividing the recording material in the conveying direction.

An image forming apparatus includes a belt, tension rollers, an outer member, a pressing member, a moving mechanism, and an attachable unit. The belt bears a toner image and the tension rollers stretch the belt around rollers. The toner image is transferred at the outer member from the belt onto a recording material. The moving mechanism moves the pressing member to press an inner surface of the belt toward an outer surface side. The attachable unit includes the pressing member or the belt and attaches to and detaches from the image forming apparatus. A mode is executed in which the pressing member presses the belt to transfer the toner image onto the recording material. Information is stored based on an individual difference of the attachable unit related to a setting of a moving mechanism position in executing the mode, where the setting is based on the stored information.

An image forming apparatus, including: an image forming portion that forms an image on a recording material based on image data; a fixing portion that includes a heater having a plurality of heat generating members arranged in a direction perpendicular to a conveying direction of a recording material, and that fixes the image to the recording material using heat of the heater; a storage portion that stores history information on the recording material when image forming operation is performed in which the image forming portion forms the image and the fixing portion fixes the image, a control portion that sets power to be supplied to the heat generating members based on the history information before a type of the recording material on which the image is formed or content of the image data of the image to be formed on the recording material is determined.

Embodiments of the present disclosure provide an image forming control method, an image forming apparatus, and a non-transitory storage medium. The image forming control method includes acquiring job data and job parameters corresponding to the job data, where the job parameters include an image post-processing direction and a job data direction; determining a sheet feed direction based on the image post-processing direction and the job data direction in conjunction with a pre-stored corresponding relationship for characterizing a preset image post-processing direction, a preset job data direction, and a preset sheet feed direction; and based on the sheet feed direction, the job data, the job data direction, and the image post-processing direction, controlling an image forming device to perform an image forming operation, and controlling an image post-processing device to perform an image post-processing operation.

An image heating apparatus includes an image heating portion including a heater, a tubular film having an inner surface in contact with the heater, and a pressure member that is in contact with the outer surface of the film and forms a nip portion for conveying a recording material between the outer surface and the pressure member. The image heating portion heats an unfixed toner image on the recording material by the heater. A temperature detection portion detects the temperature of the heater. A control portion controls electric power to the heater such that the temperature detected by the temperature detection portion is maintained at a predetermined control target temperature. An obtainment portion obtains image information for forming the unfixed toner image. The control target temperature is set, based on the image information, for each of a plurality of regions defined by dividing the recording material in the conveying direction.

An image formation apparatus includes: an image former that forms an image on a recording medium delivered along a predetermined delivery path and outputs the recording medium; a first hardware processor that judges whether or not the recording medium is an envelope; a second hardware processor that acquires a basis weight of the recording medium; a third hardware processor that determines control for when an image is formed on the recording medium on the basis of a judgment result from the first hardware processor and a basis weight acquired by the second hardware processor; and a fourth hardware processor that controls operation of the image former on the basis of a determination result from the third hardware processor.

A sheet conveying device can selectively execute a first conveyance process of conveying sheets on a first tray and discharging the sheets onto a second tray, a second conveyance process of conveying the sheets on the first tray and discharging the sheets onto a third tray, or a third conveyance process of conveying the sheets on the third tray and discharging the sheets onto the second tray. A control device records conveyance history information indicating by which conveyance processes each of the sheets on the first tray has been conveyed in a storage device. Furthermore, the control device causes the sheet conveying device to sequentially select the first conveyance process or the third conveyance process for each of the sheets based on the conveyance history information and execute the selected process.

An image forming apparatus includes a conveyor, an actuator, an image forming unit, a detection unit, and a controller. The conveyor transports a sheet having a length measured in a transport direction. The actuator drives the conveyor. The image forming unit forms an image on the sheet. The detection unit includes a first sheet detection sensor that outputs a detection signal indicating whether the sheet transported by the conveyor passes through a first predetermined detection position. The controller controls the actuator based on the length of the sheet in response to an indication that the detection unit is not operating normally.

In an image forming apparatus, in a case in which a second toner image to be transferred to a same recording material as a first toner image is to be transferred is formed on the photosensitive member after the first toner image is formed on the photosensitive member and the first toner image is formed on an area of the photosensitive member including at least a part of a position of the second toner image one cycle before with respect to a movement direction of the surface of the photosensitive member, a control unit changes a value of a transfer current at a time of transferring the first toner image to a transfer-receiving member between a first value and a second value of which an absolute value is greater than an absolute value of the first value, based on image information regarding the second toner image.