Abstract: A semiconductor device that has low power consumption and is capable of performing a product-sum operation is provided. The semiconductor device includes first and second cells, a first circuit, and first to third wirings. Each of the first and second cells includes a capacitor, and a first terminal of each of the capacitors is electrically connected to the third wiring. Each of the first and second cells has a function of feeding a current based on a potential held at a second terminal of the capacitor, to a corresponding one of the first and second wirings. The first circuit is electrically connected to the first and second wirings and stores currents I1 and I2 flowing through the first and second wirings. When the potential of the third wiring changes and accordingly the amount of current of the first wiring changes from I1 to I3 and the amount of current of the second wiring changes from I2 to I4, the first circuit generates a current with an amount I1?I2?I3+I4.

Abstract: An image forming apparatus includes an apparatus body, a rotatable first rotary member, a rotatable second rotary member, a casing, a sheet discharge port, an opening and closing member, a duct, and a fan. The casing is provided within the apparatus body and storing the first and second rotary members. The sheet discharge port discharges the recording material that has passed through the nip portion out of the casing. The opening and closing member has the sheet discharge port and opens a conveyance path of the recording material from the nip portion to the sheet discharge port. The fan suctions air from the suction port through the duct. The duct is provided on the opening and closing member and comprises a suction port to suction air from the conveyance path. The suction port is provided on the same side as the first rotary member with respect to the conveyance path.

Abstract: A semiconductor device with a small circuit area and low power consumption is provided. The semiconductor device includes first to fourth cells, a current mirror circuit, and first to fourth wirings, and the first to fourth cells each include a first transistor, a second transistor, and a capacitor. In each of the first to fourth cells, a first terminal of the first transistor is electrically connected to a first terminal of the capacitor and a gate of the second transistor. The first wiring is electrically connected to first terminals of the second transistors in the first cell and the second cell, the second wiring is electrically connected to first terminals of the second transistors in the third cell and the fourth cell, the third wiring is electrically connected to second terminals of the capacitors in the first cell and the third cell, and the fourth wiring is electrically connected to second terminals of the capacitors in the second cell and the fourth cell.

Abstract: A fixing apparatus includes a belt, a rotary member, a pad member, and a slide member. A distance in the conveyance direction between a first position and a second position is 3.0 mm or less. The first position is a downstream edge of a tip of a projection positioned most downstream in a direction of rotation of the belt. The second position is an upstream edge, in the direction of rotation of the belt, of the guide portion that contacts with the inner circumference surface of the belt. A distance in the pressing direction between a third position and a fourth position is 0.4 mm or more and 2.0 mm or less. The third position is the tip of the projection positioned most downstream in the direction of rotation of the belt. The fourth position is the same position as the second position.

Abstract: A fixing device includes a heating rotating member and a pressure rotating member and performs image formation in one mode out of a plurality of modes including a first mode and a second mode. A time during which one of the heating rotating member and the pressure rotating member moves between an abutment position and a separation position in a case where the image formation is performed in the first mode is a first time, a time during which the one moves between the abutment position and the separation position in a case where the image formation is performed in the second mode is a second time, and the first time is shorter than the second time.

Abstract: A fixing device includes an endless fixing belt, a heating roller that heats the fixing belt, a steering roller, and a pressurization rotating member. The steering roller is controlled to swing to move the fixing belt to a prescribed position. The pressurization rotating member pressurizes and forms a fixing nip portion with the fixing belt. When a recording material bearing unfixed toner is nipped and conveyed to the fixing nip portion, an unfixed toner image is fixed to the recording material. A single inclination operation that inclines the steering roller results in an inclination angle that is smaller when a recording material having a length greater than a predetermined length in a recording material conveying direction is conveyed to the fixing nip portion than when a recording material having a length less than or equal to the predetermined length in the conveying direction is conveyed to the fixing nip portion.

Abstract: A fixing apparatus includes a belt, a rotary member, a pad member, and a slide member. A distance in the conveyance direction between a first position and a second position is 3.0 mm or less. The first position is a downstream edge of a tip of a projection positioned most downstream in a direction of rotation of the belt. The second position is an upstream edge, in the direction of rotation of the belt, of the guide portion that contacts with the inner circumference surface of the belt. A distance in the pressing direction between a third position and a fourth position is 0.4 mm or more and 2.0 mm or less. The third position is the tip of the projection positioned most downstream in the direction of rotation of the belt. The fourth position is the same position as the second position.

Abstract: A fixing device includes a heating unit, a pressure unit, a first frame, an urging member, a support member, and a fixing member. The heating unit heats toner carried by a recording medium. The pressure unit pressurizes the heating unit to form a nip portion with the heating unit and fixes a toner image onto the recording medium at the nip portion with the heating unit. The first frame moves to a first position where the heating unit is exposed and moves to a second position where the heating unit is covered. The urging member urges the heating unit to position the heating unit. The support member supports one end of the urging member and the fixing member fixes the support member to the fixing device.

Abstract: A fixing device includes a heating rotating member and a pressure rotating member and performs image formation in one mode out of a plurality of modes including a first mode and a second mode. A time during which one of the heating rotating member and the pressure rotating member moves between an abutment position and a separation position in a case where the image formation is performed in the first mode is a first time, a time during which the one moves between the abutment position and the separation position in a case where the image formation is performed in the second mode is a second time, and the first time is shorter than the second time.

Abstract: A fixing apparatus includes a belt, a steering roller, a slide member, and a pressing rotation member that forms a nip portion by pressing the belt and is disposed to face the slide member. The belt applies heat to a recording material and has an inner circumferential surface that receives a lubricant applied onto the inner circumferential surface. The pressing rotation member fixes a toner image onto the recording material by applying heat and pressure to an unfixed toner image in the nip portion, in cooperation with the belt. An end portion of the belt on one end side in a belt width direction takes a position outside an end portion of the slide member on the one end side and a position inside the end portion of the slide member on the one end side while the steering roller is in operation.

Abstract: A fixing apparatus includes a fixing belt that is rotatable and endless, a pad, a pressing rotary member, and a scraping member. The pad contacts an inner circumferential surface of the fixing belt. The pressing rotary member contacts the pad via the fixing belt to form a nip portion. In cooperation with the fixing belt, the pressing rotary member fixes a toner image to a recording material by applying heat and pressure to the recording material at the nip portion. A lubricant is applied to the inner circumferential surface of the fixing belt. The scraping member includes an inclined portion inclined downward toward an outer side of the fixing belt and contacting an edge portion of the fixing belt to scrape the lubricant. The inclined portion is in contact with the edge portion of the fixing belt in an area where an outer surface of the fixing belt faces upward.

Abstract: A fixing apparatus includes a belt, a steering roller, a slide member, and a pressing rotation member that forms a nip portion by pressing the belt and is disposed to face the slide member. The belt applies heat to a recording material and has an inner circumferential surface that receives a lubricant applied onto the inner circumferential surface. The pressing rotation member fixes a toner image onto the recording material by applying heat and pressure to an unfixed toner image in the nip portion, in cooperation with the belt. An end portion of the belt on one end side in a belt width direction takes a position outside an end portion of the slide member on the one end side and a position inside the end portion of the slide member on the one end side while the steering roller is in operation.

Abstract: A fixing apparatus includes a fixing belt, a slide member, an opposing member, and a retaining member. The retaining member includes, in a groove portion, a bottom surface portion that is in contact with an opposite surface of the slide member from a slide surface, a side surface portion that is formed on a downstream side of the groove portion in a conveyance direction and intersecting the bottom surface portion, and a continuous portion that is formed between the bottom surface portion and the side surface portion. The slide member includes an abutment portion configured to abut against the side surface portion at a position downstream from a downstream edge of the opposite surface when the slide member is slidden against the fixing belt such that the downstream edge of the opposite surface is positioned upstream from the continuous portion in the conveyance direction.

Abstract: A fixing device includes an endless fixing belt, a heating roller that heats the fixing belt, a steering roller, and a pressurization rotating member. The steering roller is controlled to swing to move the fixing belt to a prescribed position. The pressurization rotating member pressurizes and forms a fixing nip portion with the fixing belt. When a recording material bearing unfixed toner is nipped and conveyed to the fixing nip portion, an unfixed toner image is fixed to the recording material. A single inclination operation that inclines the steering roller results in an inclination angle that is smaller when a recording material having a length greater than a predetermined length in a recording material conveying direction is conveyed to the fixing nip portion than when a recording material having a length less than or equal to the predetermined length in the conveying direction is conveyed to the fixing nip portion.

Abstract: An image heating apparatus includes a first rotary member and a second rotary member that form a nip portion, and, a changing mechanism configured to change a pressing force applied at the nip portion. The changing mechanism includes a worm having both ends supported rotatably, a worm wheel that is meshed with the worm and to which a driving force from the worm is transmitted, a rotatable shaft to which the worm wheel is attached, a cam that is attached to the shaft, and, a displacement mechanism that is abutted against the cam and that is configured to displace the second rotary member with respect to the first rotary member along with a rotation of the cam.

Abstract: A fixing device includes an endless fixing belt, a heating roller that heats the fixing belt, a steering roller, and a pressurization rotating member. The steering roller is controlled to swing to move the fixing belt to a prescribed position. The pressurization rotating member pressurizes and forms a fixing nip portion with the fixing belt. When a recording material bearing unfixed toner is nipped and conveyed to the fixing nip portion, an unfixed toner image is fixed to the recording material. A single inclination operation that inclines the steering roller results in an inclination angle that is smaller when a recording material having a length greater than a predetermined length in a recording material conveying direction is conveyed to the fixing nip portion than when a recording material having a length less than or equal to the predetermined length in the conveying direction is conveyed to the fixing nip portion.

Abstract: A fixing device includes a heating rotating member and a pressure rotating member and performs image formation in one mode out of a plurality of modes including a first mode and a second mode. A time during which one of the heating rotating member and the pressure rotating member moves between an abutment position and a separation position in a case where the image formation is performed in the first mode is a first time, a time during which the one moves between the abutment position and the separation position in a case where the image formation is performed in the second mode is a second time, and the first time is shorter than the second time.

Abstract: A fixing apparatus includes a fixing belt, a slide member, an opposing member, and a retaining member. The retaining member includes, in a groove portion, a bottom surface portion that is in contact with an opposite surface of the slide member from a slide surface, a side surface portion that is formed on a downstream side of the groove portion in a conveyance direction and intersecting the bottom surface portion, and a continuous portion that is formed between the bottom surface portion and the side surface portion. The slide member includes an abutment portion configured to abut against the side surface portion at a position downstream from a downstream edge of the opposite surface when the slide member is slidden against the fixing belt such that the downstream edge of the opposite surface is positioned upstream from the continuous portion in the conveyance direction.

Abstract: A fixing apparatus includes a belt, a steering roller, a slide member, and a pressing rotation member that forms a nip portion by pressing the belt and is disposed to face the slide member. The belt applies heat to a recording material and has an inner circumferential surface that receives a lubricant applied onto the inner circumferential surface. The pressing rotation member fixes a toner image onto the recording material by applying heat and pressure to an unfixed toner image in the nip portion, in cooperation with the belt. An end portion of the belt on one end side in a belt width direction takes a position outside an end portion of the slide member on the one end side and a position inside the end portion of the slide member on the one end side while the steering roller is in operation.

Abstract: A fixing apparatus includes a belt, a rotary member, a pad member, and a slide member. A distance in the conveyance direction between a first position and a second position is 3.0 mm or less. The first position is a downstream edge of a tip of a projection positioned most downstream in a direction of rotation of the belt. The second position is an upstream edge, in the direction of rotation of the belt, of the guide portion that contacts with the inner circumference surface of the belt. A distance in the pressing direction between a third position and a fourth position is 0.4 mm or more and 2.0 mm or less. The third position is the tip of the projection positioned most downstream in the direction of rotation of the belt. The fourth position is the same position as the second position.