An image forming apparatus includes: a first hardware processor that, when receiving an execution command of a job related to formation of an image on a continuous recording medium, calculates a consumption amount of a recording agent on a basis of information of the job; and a second hardware processor that determines whether the recording agent is sufficient on a basis of the consumption amount, wherein in a case where the second hardware processor determines that the recording agent is insufficient, a notification that the recording agent is insufficient is made.

To provide an image forming device that can prompt a user to check whether a waste toner container is completely attached. The image forming device includes a housing, an access cover attached in an openable/closable manner to the housing, a waste toner container attachable to the housing with the access cover open, and a lock lever that locks the waste toner container and the housing. The access cover includes a protruding portion protruding toward an interior of the housing. The lock lever transitions between a locked state and a pressed state of being pressed by the waste toner container, and, when in the pressed state, moves to a preventing position at which the lock lever blocks the protruding portion and prevents the access cover from closing, and, when in the locked state, moves to a retracted position at which the lock lever does not block the protruding portion.

An image forming apparatus to perform image formation using a plurality of consumable parts includes a display unit and a display control unit. The display control unit displays, on the display unit, a first screen indicating at least a degree of consumption of a consumable part of a type in which an image forming operation stops in response to the consumable part reaching a time for replacement from among the plurality of consumable parts, and displays, on the display unit, a second screen indicating at least a degree of consumption of a consumable part of a type in which an image forming operation does not stop in response to the consumable part reaching a time for replacement from among the plurality of consumable parts.

According to an example, object type based image processing may include analyzing an input object type, and implementing a toner savings.

Provided is an image forming apparatus including a process unit that is used for an image forming operation for forming an image on a sheet and detachable from a main body of the image forming apparatus, a storage unit that stores operation history information indicating an operation history of the process unit, a detection unit that detects that the process unit is replaced with a new process unit, and a determination unit that determines a replacement timing of the new process unit on a basis of the operation history information of the process unit.

An image forming apparatus includes a fixing unit having a rotating member with a surface layer, a pressing member that forms a fixing nip portion to sandwich and to transport a recording material with the rotating member, and a heater that heats the rotating member. A rotating member temperature sensor detects a temperature of the rotating member, and a wearing amount acquisition portion acquires a wearing amount of the surface layer of the rotating member. The wearing amount acquisition portion acquires the wearing amount corresponding to the temperature detected by the rotating member temperature sensor, and acquires the wearing amount per recording material. The wearing amount per recording material is different depending on the temperature detected by the rotating member temperature sensor. In addition, a control temperature setting portion sets a control temperature of the heater according to the wearing amount.

An image forming apparatus includes: a photoreceptor; a measurer that measures the number of rotations of the photoreceptor; and a hardware processor that predicts a film scraping amount of the photoreceptor on the basis of a measurement result of the measurer, and determines a service life of the photoreceptor on the basis of a prediction result of the hardware processor, wherein the hardware processor calculates the film scraping amount by multiplying the number of rotations of the photoreceptor per predetermined time by a predetermined coefficient, and integrates the calculated film scraping amount for each predetermined time, and the predetermined coefficient is set to a different value according to the number of rotations of the photoreceptor per predetermined time.

An image forming apparatus comprises an expendable item having a specific function, installed replaceably with respect to a main body of the image forming apparatus, wherein there are several types of expendable items, and an engine control unit. The engine control unit judges end of lifetime of the expendable item by using one of a plurality of lifetime judgment methods. The engine control unit selects a lifetime judgment method used in the judgment, according to a type of the expendable item. It makes possible to provide an image forming apparatus capable of appropriately determining the reaching of the lifetime end of expendable items.

An image forming apparatus includes a medium carrying part carrying a continuous medium, an image forming part performing a print process, a cutting part cutting the medium, replacement parts that are expendable and expected to be replaced when reaching its end of life, a usage detection part detecting usages of all of the replacement parts, a controller controlling these parts. The controller determines if one of the replacement parts reaches its end of life during the print process based on the detection result of the usage detection part wherein the one of the replacement parts is defined as a life-end part, and when the life-end part is found, the controller determines whether or not to cut the medium according to a type of the life-end part and selection information input by an operator before the print process starts.

The image forming apparatus manages information on a consumable item by a management chip and includes a control unit configured to control the management chip, and the management chip includes: a chip-side storage unit whose storage area is made up in units of blocks; a simultaneous writing unit configured to simultaneously write information on the consumable item in units of the blocks in the chip-side storage unit; and a predetermined unit writing unit configured to write information on the consumable item in predetermined units smaller than the block unit in the chip-side storage unit, and the control unit performs control so as to write information on the consumable item by the simultaneous writing unit at timing at which there is time constraint and performs control so at to write information on the consumable item by the predetermined unit writing unit at timing at which there is no time constraint.