Abstract: An image forming apparatus includes: a first hardware processor that receives setting of a type of a recording medium by a user; a detector that detects a type determination parameter for a recording medium including a recording medium for which setting of a type has been received by the first hardware processor; a second hardware processor that determines a type of a recording medium based on a detection result of the detector; an image former that forms an image on the recording medium; and a third hardware processor that transmits, to an external device, at least two pieces of information of information regarding the type received, information regarding the type determined by the second hardware processor, or information regarding matching or mismatching of the type received and the type determined with respect to the recording medium for which setting of a type has been received by the first hardware processor.

Abstract: An image forming apparatus includes: a former that performs image formation on a sheet conveyed on a conveyance path; a first hardware processor that detects a type of the sheet on which the image is formed; a second hardware processor that receives specification of a type of a sheet from a user; and a third hardware processor that receives a user setting regarding the image formation, wherein the user setting includes a setting for allowing the former to continuously perform the image formation in a case where the sheet type detected by the first hardware processor is different from the sheet type specified by the user received by the second hardware processor.

Abstract: An image forming apparatus includes: a state monitor that monitors an apparatus state; an electrostatic noise detector that detects electrostatic noise; and an erroneous detection determiner that determines whether or not the state monitor has erroneously detected a change in the apparatus state due to electrostatic noise from a detection result of the change in the apparatus state by the state monitor and a detection result of the electrostatic noise detector.

Abstract: Provided is an inspection device that performs inspection using ultrasonic waves transmitted on the basis of a burst signal including a plurality of pulses, the inspection device includes: a decider that decides the number of pulses included in the burst signal, or a burst cycle of the burst signal, on the basis of an atmospheric pressure at an installation position of the inspection device; a generator that repeatedly generates the burst signal including the decided number of pulses, or the burst signal having the decided burst cycle; a transmitter that transmits ultrasonic waves on the basis of the burst signal repeatedly generated; and a receiver that receives ultrasonic waves.

Abstract: An image forming device including an optical sensor, an ultrasound sensor, and a conveyance guide. The optical sensor and the ultrasound sensor are disposed alongside a conveyance path of a sheet and are used to determine sheet type. The conveyance guide guides the sheet along the conveyance path. The conveyance guide is structured such that, on the conveyance path between the optical sensor and the ultrasound sensor, the sheet is in contact with the conveyance guide while a portion of the sheet is in a light irradiation range of the optical sensor and a different portion of the sheet is in an ultrasound irradiation range of the ultrasound sensor.

Abstract: An image forming apparatus includes: a transport device that transports a sheet placed on a sheet holding member; a detector that detects one type from among a first number of types as a type of the sheet transported by the transport device; a display that displays the type of the sheet placed on the sheet holding member; and an input device that accepts an instruction related to a display pattern of the type of the sheet, wherein the input device accepts an instruction to select the display pattern from a first display pattern in which the type of the sheet is selected from among the first number of types, and a second display pattern in which the type of the sheet is selected from a second number of types, and the display displays the type that is a result of the detection by the detector.

Abstract: A controller causes a sensor unit to perform: a first operation for detecting a front end of a sheet; and a second operation for detecting a type of the sheet performed at a timing that is based on detection of the front end of the sheet in the first operation.

Abstract: A sheet conveyance device including: a conveyance roller that conveys a sheet; a motor that rotationally drives the conveyance roller at a constant speed; a central processing unit (CPU) that: periodically acquires temperature increase rates for the motor from a start of sheet conveyance, the temperature increase rates depending on magnitudes of effective current applied to the motor, the effective current depending on loads during sheet conveyance; and estimates a current temperature of the motor based on a cumulative value calculated from the temperature increase rates and time elapsed from the start of sheet conveyance; and a controller that executes a motor temperature control based on the estimated temperature of the motor.

Abstract: A stapling apparatus includes a sheet insertion portion that receives insertion of a sheet bundle, a stapler that staples the sheet bundle, a drive apparatus that drives the stapler, and a controller that controls the drive apparatus. The controller has the drive apparatus driven with first electric power when the drive apparatus operates in an on-line stapling mode in which the sheet bundle ejected from an image forming apparatus is stapled and has the drive apparatus driven with second electric power lower than maximum electric power that can be set as first electric power when the drive apparatus operates in a manual stapling mode in which the sheet bundle inserted through the sheet insertion portion is stapled.

Abstract: An image processing system includes: a mobile terminal; and a server apparatus, wherein the mobile terminal includes a camera, a display that displays an apparatus image of an image forming apparatus, a microphone that collects sound output from the image forming apparatus, and a first hardware processor that controls the camera, the microphone and the display, the server apparatus includes a second hardware processor that controls the server apparatus, the second hardware processor performs identifying a portion of the image forming apparatus, setting the portion identified as a sound collection target position, and clipping a partial image including the sound collection target position and representing an outline of a part of the image forming apparatus, from a main body image generated in advance as an image representing an outer shape of the image forming apparatus, and the display displays the partial image.

Abstract: An image reading apparatus for separating and conveying documents from a bundle of documents, causing the document to pass through a reading position, and reading an image from the document, includes: a reading translucent plate; a rotation member capable of rotating around a shaft; and a rotation driver that rotates the rotation member, wherein in the rotation member, each of: a cleaning member; a white reference area; and an end portion detection area is formed partially with regard to a circumferential direction, the cleaning member and the end portion detection area are arranged adjacent to each other, the rotation driver is arranged so that the end portion detection area faces an opposing surface, and the rotation member is rotated in a paper interval period from when a trailing edge of the document passes the reading position to when a leading edge of a subsequent document reaches the reading position.

Abstract: A sheet conveying apparatus has a reference roller, a detection roller, and a detection sensor. The detection roller can move, and makes contact with the reference roller, facing the reference roller. The detection sensor outputs a signal corresponding to the displacement of the detection roller. The sheet is conveyed to a nip portion of the pair of rollers. At this time, the timing when an edge portion of the sheet being conveyed passes through the nip portion is detected. In response to the timing detected, the thickness of the sheet is detected, based on the signal output from the detection sensor.

Abstract: A power supply control device including a chopper circuit generating a heater current for a halogen heater, a current feedback circuit generating a current feedback signal indicating a current amount based on an amount of the heater current, and a constant current circuit performing pulse-width modulation of the heater current amount according to a difference between a target heater current amount and the current amount indicated by the current feedback signal. The current feedback circuit switches between methods at least including a first method and a second method for generating the current feedback signal. The current feedback signal indicates a greater current amount with the first method than with the second method, and the current feedback circuit uses the first method during a period with a predetermined time length starting from when the halogen heater is turned on, and uses the second method after elapse of the period.

Abstract: Provided is a document conveyance apparatus that conveys a document along a document conveyance path including a reading position at which an image on a surface of the document is read, the document conveyance apparatus including: a hardware processor; an end detector that detects an angle of a corner portion of a front edge of the document; and an inclination detector that detects an amount of inclination of the front edge, wherein, in a case where it has been determined that the corner portion of the front edge includes a right angle portion on the basis of information obtained from the end detector, the hardware processor determines the amount of inclination of the front edge obtained from the inclination detector as an amount of inclination of the document, and performs inclination correction of the image read at the reading position.

Abstract: A lifetime diagnosis component for anticorrosive coating includes a plate-shaped base member having an aluminum layer on a surface thereof; and a sacrificial anode layer portion formed of zinc on the base member. The surface of the base member has a base-member exposing portion where the aluminum layer is exposed.

Abstract: An image reading apparatus for separating and conveying documents from a bundle of documents, causing the document to pass through a reading position, and reading an image from the document, includes: a reading translucent plate; a rotation member capable of rotating around a shaft; and a rotation driver that rotates the rotation member, wherein in the rotation member, each of: a cleaning member; a white reference area; and an end portion detection area is formed partially with regard to a circumferential direction, the cleaning member and the end portion detection area are arranged adjacent to each other, the rotation driver is arranged so that the end portion detection area faces an opposing surface, and the rotation member is rotated in a paper interval period from when a trailing edge of the document passes the reading position to when a leading edge of a subsequent document reaches the reading position,

Abstract: An image forming apparatus includes: a fixing part including a heater, and a first temperature detection part configured to detect the temperature of the heater; a chopper circuit including a reactor, a freewheeling element, and a switching element, the chopper circuit being configured to switch an input direct current on and off in a specified duty cycle by using the switching element and to supply the current to the heater; and a control part configured to control the duty cycle based on a detection result obtained by the first temperature detection part, as well as to control a switching frequency of the switching element based on an operation mode of the image forming apparatus.

Abstract: A power supply control device including a chopper circuit generating a heater current for a halogen heater, a current feedback circuit generating a current feedback signal indicating a current amount based on an amount of the heater current, and a constant current circuit performing pulse-width modulation of the heater current amount according to a difference between a target heater current amount and the current amount indicated by the current feedback signal. The current feedback circuit switches between methods at least including a first method and a second method for generating the current feedback signal. The current feedback signal indicates a greater current amount with the first method than with the second method, and the current feedback circuit uses the first method during a period with a predetermined time length starting from when the halogen heater is turned on, and uses the second method after elapse of the period.

Abstract: A fuser control device includes: a fusing portion having a heater; a chopper portion including a reactor, a free-wheeling element, and a switching element; and a processor portion being configured to implement a first current control during an implementation period, the implementation period including a first time interval and a second time interval, the implementation period being longer than a commercial power period, the first current control for transferring a control signal having a predetermined duty ratio to the switching element during the first time interval and transferring a control signal having a 100% duty ratio to the switching element during the second time interval.

Abstract: An image forming apparatus includes a fixing unit that includes a roller and an electric heating wire heater, a current applying circuit that applies electrical current to the electric heater wire heater, a measuring unit electrically connected to the current applying circuit and that measures a value of electrical current that flows through the electric heating wire heater, and a controller that controls the electrical current that flows through the electric heating wire heater by controlling the current applying circuit based on the electrical current value measured by the measuring unit. The controller controls the electrical current to be less than or equal to an electrical current limit value. A magnitude of the electrical current limit value is linked to a magnitude of stable state electrical current.