Abstract: A heater is to face a pressure element via a belt and is to heat the belt. The pressure element sandwiches and conveys a sheet together with the belt. The heater includes a substrate, a heat generating element, a couple of electrodes, and a protective layer. there are the electrodes on both sides of the heat generating element in a conveyance direction of the sheet. Both sides of the heat generating element in the conveyance direction are connected to adjacent electrodes.

Abstract: A power semiconductor module, which is a semiconductor device, includes a semiconductor element 155 and a lead frame 318 that is disposed to face the semiconductor element 155 and connected to the semiconductor element 155 by a solder material 162. The lead frame 318 has the top surface 331 including a surface facing the semiconductor element 155, and the side surface 334 connected to the peripheral edge portion 333 of the top surface 331 at a predetermined angle with respect to the top surface 331. The top surface of the lead frame 318 includes the solder surface 332 that is in contact with the solder material 162 and the solder resistance surface on which the solder material 162 is less wettable than on the solder surface 332. The solder resistance surface is formed to surround the periphery of the solder surface 332. In this manner, when the semiconductor element and the lead frame are solder-joined in the semiconductor device, the region where the solder wet-spreads is appropriately controlled.

Abstract: A heater is to face a pressure element via a belt and is to heat the belt. The pressure element sandwiches and conveys a sheet together with the belt. The heater includes a heat generating element, a couple of electrodes, and a protective layer. there are the electrodes on both sides of the heat generating element in a conveyance direction of the sheet. Both sides of the heat generating element in the conveyance direction are connected to adjacent electrodes.

Abstract: A heater includes an insulator substrate, a heat generating section in which a plurality of divided regions are formed in a longitudinal direction on a first surface of the insulator substrate, electrodes formed at both end portions of the heat generating section to correspond to the plurality of divided regions, and electric conductors connected to at least one of the electrodes and formed over a surface different from the first surface of the insulator substrate.

Abstract: A heater includes an insulator substrate, a heat generating section in which a plurality of divided regions are formed in a longitudinal direction on a first surface of the insulator substrate, electrodes formed at both end portions of the heat generating section to correspond to the plurality of divided regions, and electric conductors connected to at least one of the electrodes and formed over a surface different from the first surface of the insulator substrate.

Abstract: A heat generating member includes a plurality of heat generating portions configured to generate heat and including a first heat generating portion having a meandering shape, and a plurality of second heat generating portions between two of which the first heat generating portion is disposed.

Abstract: A heating device according to an embodiment generally includes substrate, blocks, and temperature sensors. The blocks are arranged on the substrate with a gap therebetween in a first direction. The temperature sensors are provided for each of the blocks and detect the temperature of the blocks. The block includes a plurality of first blocks on at least one side in the first direction, and the first block is adjacent to two blocks in the first direction, and the temperature sensor detects temperature of a temperature detection region on the first block, which is closer to the one of the adjacent two blocks being longer in the first direction of the two blocks.

Abstract: An image forming apparatus includes a transfer unit for transferring a toner image onto a sheet, a fixing device for fixing the image, the fixing device including a heating member including a heat generating element and electrodes on both sides of the heat generating element in a sheet conveyance direction and connected to the heat generating element, and a pressure element for pressing against the heating member, and a controller for controlling an adjustment mechanism so that a distance between the heating member and the pressure element becomes a first distance during a fixing process and a second distance larger than the first distance during temperature raising of the heating member, which is conducted before the fixing process.

Abstract: A heating device according to an embodiment generally includes heat generating parts and temperature sensors. The heat generating parts are divided into a plurality of blocks, so that the plurality of heat generating parts are arranged with a gap therebetween on a substrate in each block. With a temperature detection region provided in each block, the temperature sensors are provided corresponding to the heat generating parts with the gaps being avoided. The temperatures of the heat generating parts are detected by the temperature sensors that are less in number than the plurality of heat generating parts.

Abstract: A heater includes a heat-resistant insulating substrate, a plurality of heat generating members arrayed in a first direction on a first surface of the substrate, and a plurality of heat radiating bodies disposed on a surface different from the first surface of the substrate at positions corresponding to gap portions between the heat generating members to passively radiate heat generated thereby.

Abstract: A heater is to face a pressure element via a belt and is to heat the belt. The pressure element sandwiches and conveys a sheet together with the belt. The heater includes a heat generating element, a couple of electrodes, and a protective layer. there are the electrodes on both sides of the heat generating element in a conveyance direction of the sheet. Both sides of the heat generating element in the conveyance direction are connected to adjacent electrodes.

Abstract: A heater is to face a pressure element via a belt and is to heat the belt. The pressure element sandwiches and conveys a sheet together with the belt. The heater includes a substrate, a heat generating element, and a protective layer. The heat generating element is on the substrate. The protective layer covers the heat generating element and the substrate and whose surface is concave with respect to the pressure element. In the protective layer, a curvature of a top surface of an upstream end in a conveyance direction of the sheet is smaller than a curvature of a top surface of a downstream end in the conveyance direction.

Abstract: Embodiments disclosed herein generally relate to a heater, comprising an insulator substrate, a first member, a plurality of electrodes, and a second member. The first member is configured to generate heat on an upper surface of the insulator substrate across a first direction. The first member has a first end opposite a second end. The plurality of electrodes are formed on both the first end and the second end of the first member, respectively, and each electrode is disposed in a direction perpendicular to the first direction. The second member is configured to store heat. The second member comprises a latent heat material having latent heat in a target temperature zone. Furthermore, the latent heat material is fixed to a side surface or a bottom surface of the insulator substrate.

Abstract: A heater includes a heat generating member in a first layer, a sensor that is in a second layer different from the first layer and configured to detect a temperature of the heat generating member, and a wiring pattern in one or more third layers between the first and second layers to supply power to the heat generating member.

Abstract: An image forming apparatus includes a transfer unit for transferring a toner image onto a sheet, a fixing device for fixing the image, the fixing device including a heating member including a heat generating element and electrodes on both sides of the heat generating element in a sheet conveyance direction and connected to the heat generating element, and a pressure element for pressing against the heating member, and a controller for controlling an adjustment mechanism so that a distance between the heating member and the pressure element becomes a first distance during a fixing process and a second distance larger than the first distance during temperature raising of the heating member, which is conducted before the fixing process.

Abstract: An image forming apparatus includes: a first image forming unit which forms a first image on a first recording medium with a first material that is not thermally decolorizable; a second image forming unit which forms a second image on a second recording medium with a second material that is thermally decolorizable; a fixing device which is on a common carrying path shared by the first recording medium and the second recording medium and fixes the first image to the first recording medium; and a controller which controls the fixing device so that a temperature of the fixing device is lower than a decolorizing temperature of the second material when the second recording medium reaches the fixing device.

Abstract: A heat generating member includes a plurality of heat generating portions configured to generate heat and including a first heat generating portion having a meandering shape, and a plurality of second heat generating portions between two of which the first heat generating portion is disposed.

Abstract: A heater includes a heat-resistant insulating substrate, a plurality of heat generating members arrayed in a first direction on a first surface of the substrate, and a plurality of heat radiating bodies disposed on a surface different from the first surface of the substrate at positions corresponding to gap portions between the heat generating members to passively radiate heat generated thereby.

Abstract: An image forming apparatus includes a transfer unit for transferring a toner image onto a sheet, a fixing device for fixing the image, the fixing device including a belt, a pressure element for pressing against the belt, a heating member on the belt including a heat generating element and electrodes on both sides of the heat element in a sheet conveyance direction and connected to the heat element, and an adjustment mechanism for moving one of the heating member and the pressure element in a manner to move the one closer to or away from the other, and a controller for controlling the adjustment mechanism so that a distance between the heating member and the pressure element becomes a first distance during a fixing process and a second distance larger than the first distance during temperature raising of the heating member, which is conducted before the fixing process.

Abstract: A fixing device includes a roller, an endless belt, and a heat generating member disposed in a space inside the endless belt, extending in a width direction of the endless belt, and pressing the endless belt against the roller. A sheet is passed through a nip formed between the roller and a portion of the endless belt pressed by the heat generating member, such that an image on the sheet is fixed thereto. The heat generating member includes first and second heat generating portions that are adjacent to each other along the width direction, and the first portion heat generating is independently operable from the second heat generating portion.