An image forming device includes an image forming unit configured to form an image on a sheet, a fixing unit configured to fix the image on the sheet, the fixing unit including heating rotation body, a heater configured to heat the heating rotation body, and a pressure rotation body configured to form a nip portion between the heating rotation body and the pressure rotation body, a discharge roller disposed downstream of the fixing unit in a conveying direction of the sheet, and configured to discharge the sheet, a main motor configured to transmit a drive force to at least one of the heating rotation body or the pressure rotation body, a cutter disposed downstream of the fixing unit in the conveying direction, and configured to cut the sheet, and a controller.

An image forming apparatus includes an apparatus body provided with an opening portion, an opening/closing member, a fixing unit, and a moving unit provided in the apparatus body and configured to move the fixing unit from a first position toward a second position above the first position. Movement of the fixing unit from the first position to the second position is restricted in a state in which the opening/closing member is positioned at the closed position and is allowed in a state in which the opening/closing member is positioned at the open position. The moving unit includes a support portion configured to support the fixing unit positioned at the second position such that the fixing unit is attachable and detachable. The support portion extends in a longitudinal direction of the fixing unit and supports the fixing unit from below.

A fixing device includes a fixing belt, a pressing member, a heater, and a separation member. The separation member comes into contact with a surface of the pressing member and peels off the medium passed through the pressure region, from the surface of the pressing member. The heater includes a base board, and a plurality of resistance heating elements. The base board is made of insulator and extends the in axial direction corresponding to the fixing belt. The resistance heating elements are arranged on one surface of the base board, where faces an inner surface of the fixing belt, with gaps in the axial direction, and generates heat by being energized. The separation member has at least one separation claw which is in contact with the surface of the pressing member at a position displaced in the axial direction relative to the gaps.

A second rotational member can be in contact with a first rotational member and forms a nip portion and conveys a sheet at a predetermined conveyance speed. A heating unit heats, via the first rotational member, the sheet on which a toner image has been formed. A control unit obtains a history value of an amount of toner to be transferred to an end region of each of a plurality of sheets that are consecutively conveyed. The end region extends in parallel with a conveyance direction of the plurality of sheets. The number of sheets to be heated per unit time is adjusted according to the history value.

An image forming apparatus includes: a first image forming unit that includes plural first image forming sections and a first intermediate transfer member on which a toner image formed by the plural first image forming sections is primarily transferred; a second image forming unit that is provided on a downstream side of the first image forming unit in a paper transport direction and includes plural second image forming sections and a second intermediate transfer member on which a toner image formed by the plural second image forming sections is primarily transferred; a first secondary transfer section that is provided corresponding to the first image forming unit and secondarily transfers the toner image formed on the first intermediate transfer member onto paper transported on a paper transport path; a second secondary transfer section that is provided corresponding to the second image forming unit and secondarily transfers the toner image formed on the second intermediate transfer member onto paper transported on a paper transport path; and a paper position adjusting roll that transports fed paper, at a predetermined timing, to a first secondary transfer position at which the first secondary transfer section performs secondary transfer, in which a distance between the paper position adjusting roll and a second secondary transfer position at which the second secondary transfer section performs the secondary transfer is longer than a maximum paper length that is a transport-direction length of paper having a largest paper size among sheets of paper having a probability of being used.

An image forming apparatus includes a transfer portion; a fixing portion; a detection unit that is capable of detecting a deflection amount of the recording material; and a controller configured to control a conveying speed of the fixing portion. The detection unit has a contact portion and a detection portion, and the contact portion is movable to a first position and a second position. The controller moves the contact portion from the second position by outputting the signal for setting the conveying speed to a second speed larger than the conveying speed when the contact portion is located at the second position, and the controller determines an abnormal state when the contact portion is located at the second position and an output time of the signal is longer than or equal to a predetermined time.

An image forming apparatus includes a transfer unit configured to transfer a toner image on the sheet, a fixing unit configured to fix the toner image transferred by the transfer unit to the sheet, a detection unit configured to detect the amount of deflection, and a control unit configured to control a speed of conveyance of the sheet based on a detection result from the detection unit, wherein the detection unit includes, a first pivoting member configured to be pivoted about a first pivot shaft in a first pivoting direction by the sheet pressing the first pivoting member, a second pivoting member configured to be pivoted about a second pivot shaft that is different from the first pivot shaft in a second pivoting direction by the first pivoting member pressing the second pivoting member, and a sensor configured to detect a pivotal movement of the second pivoting member.

There is provided an image forming apparatus including: a second duct unit including a second intake port that sucks air between a fixing unit and a transfer unit, a second exhaust port that exhausts air sucked from the second intake port to the outside, and a second duct that forms a second ventilation passage between the second intake port and the second exhaust port; a second duct fan that is provided in the second ventilation passage and generates an air flow from the second intake port toward the second exhaust port; a filter that is provided in the second ventilation passage and removes fine particles; and a control unit that controls operations of a first duct fan and the second duct fan, in which, in a case where a continuous job is started, the control unit starts the operation of the first duct fan when a conveyance distance of a recording material passing through a fixing nip portion reaches a first predetermined value.

According to one embodiment, a fixing device capable of extending a lifespan of a component is provided. A fixing device of an embodiment includes a cylindrical body, a pressure roller, an adjustment mechanism, and a control section. The pressure roller can come into contact with the cylindrical body to form a nip. The adjustment mechanism can adjust a pressing force of the pressure roller against the cylindrical body. The control section controls the adjustment mechanism so that a first pressing force is realized as the pressing force when the pressure roller rotates at a first speed. The control section controls the adjustment mechanism so that a second pressing force smaller than the first pressing force is realized as the pressing force when the pressure roller rotates at a second speed greater than the first speed.

A casino system in a casino using a gaming chip to which an RFID tag storing identification information is attached, comprising a registration device for registering the identification information of the gaming chip to be used in the casino, and a database for storing a list of the identification information registered by the registration device. The list includes status information that indicates whether or not the gaming chip is usable, and the registration device makes the status information usable for the gaming chip that has already been registered.