Provided is an infrared sensor which is capable of measuring a temperature of an object to be measured with high accuracy even when lead wires are connected to one side thereof. The infrared sensor includes an insulating film; a first and a second heat sensitive element which are provided on one face of the insulating film; a first and a second wiring film that are respectively connected to the first and the second heat sensitive element; an infrared reflecting film; a plurality of terminal electrodes; and a thermal resistance adjusting film which is provided on the other face of the insulating film, is in opposition to at least a portion of the longer one of the first or the second wiring film in wiring distance from the terminal electrodes, and is formed of a material with greater heat dissipation than the insulating film.

An image forming apparatus comprises a paper feeding unit which feeds a sheet-shaped recording medium, an image forming unit which forms a toner image on the recording medium fed from the paper feeding unit, a fixing unit which fixes the toner image formed by the image forming unit on the recording medium, a stacking unit which stacks the recording medium on which the toner image is fixed by the fixing unit, a temperature sensor which detects the surface temperature of the recording mediums stacked on the stacking unit and a control unit which determines, according to the printing information of the recording medium, whether or not to feed a new recording medium from the paper feeding unit when the surface temperature of the recording mediums detected by the temperature sensor is above a threshold temperature.

An image forming apparatus includes a heat source, a fixing belt that is heated by the heat source to thermally fix a color material to each of a plurality of pieces of paper in sequence, an operation acceptor that allows a user to specify a fixation degree of the color material for the plurality of pieces of paper, and one or more controllers that cause each of the plurality of pieces of paper to pass through the fixing belt in sequence at a control paper feed amount which is a paper feed amount per unit time according to the fixation degree.

An image forming apparatus includes an image forming unit configured to form an image including an adhesive image by powder adhesive on a sheet that is conveyed; a bonding unit, to which sheets on which the image has been formed by the image forming unit are conveyed in order, configured to, by heating a plurality of sheets conveyed to and stacked in the bonding unit, bond the plurality of sheets, using adhesive images formed on the plurality of sheets; and a control unit configured to evaluate a temperature of the plurality of sheets conveyed to the bonding unit and, based on the evaluated temperature, control an amount of heat to be applied to the plurality of sheets by the bonding unit heating the plurality of sheets.

An image forming apparatus includes a bearer, a charger charging the bearer at a charging position, a developing device forming an image at a developing position, a transferor transferring the image onto a transfer medium in a transfer period, a power source to flow a first current during the transfer period and a second current during a non-transfer period, and circuitry. The circuitry controls the power source to set a value of the second current to at least one of zero or a value having the same polarity as the first current and an absolute value different from that of the first current and set a charge amount of toner on the bearer between the charging position and the developing position to be from 30 C/g to 25 C/g.

An image forming apparatus includes an apparatus main body including an image forming unit for forming an image on a recording material and an environment sensor for acquiring environment information including at least one of a temperature and a humidity, the apparatus main body being configured to set an image forming condition on the basis of the environment information acquired by the environment sensor; and an image reading apparatus including a conveying roller for conveying an original, a motor for driving the conveying roller, a reading sensor for reading image information from the original conveyed by the conveying roller, and a controller for controlling the motor, the image reading apparatus being provided on the apparatus main body. The controller controls a driving speed of the conveying roller by the motor on the basis of the environment information acquired by the environment sensor of the apparatus main body.

An image forming apparatus according to an aspect of the present disclosure includes a fixing device and a controller. The fixing device includes a fixing member, a pressure member, a heating member, and a temperature sensor. The controller cuts off power supply to the heating member when the temperature detected by the temperature sensor has risen to a cutoff temperature higher than the target temperature and thereafter resumes power supply to the heating member when the detected temperature has fallen below the cutoff temperature, and performs the PID control while limiting a maximum power supplied to the heating member to an upper limit power, which is a power supplied to the heating member at the time when the detected temperature has risen to the cutoff temperature, during a period from when power supply is resumed until a predetermined specific period of time elapses.

An image forming apparatus includes: a fixer that fixes a toner image on a sheet; and a controller that sets a target glossiness, and adjusts at least one parameter selected from a fixing target temperature and a conveyance condition of the sheet in the fixer, using a gloss control temperature, to achieve the target glossiness that has been set.

An image forming apparatus includes an image forming portion configured to form a toner image on a recording material; a fixing portion configured to fix the toner image, on the recording material, formed on the recording material by the image forming portion; an input portion configured to input information on the recording material; and a controller. In a case where the controller executes an operation in a first mode in which the toner image is formed on a pressure-bonded recording material bent and pressure-bonded so that one surface of the recording material becomes an opposing inner surface, the controller controls the fixing portion on the basis of first information on a basis weight of the pressure-bonded recording material and second information on a folding shape of the pressure-bonded recording material, which are inputted by the input portion.

A media detection apparatus for detecting moisture information corresponding to a moisture amount or a moisture percentage of a sheet, the media detection apparatus comprising: a light emitter that emits light; a light receiver that receives the light reflected off the sheet or transmitted through the sheet; and a first hardware processor that determines the moisture information on the basis of temperature information corresponding to a temperature of the media detection apparatus and an output of the light receiver.