Abstract: There is provided a fixing device. An endless belt comes into contact with a developer image on a recording medium. A heat source is provided on an inner side of the belt and emits radiant heat. A heat transmitting member includes a contact portion which contacts with an inner circumferential surface of the belt, absorbs the radiant heat of the heat source, and transmits the heat to the belt. A deforming unit deforms when a temperature of the contact portion exceeds a predetermined setting temperature, and separates the belt and at least a part of the contact portion from each other.

Abstract: A fixing device includes a first belt that heats a developer image on a recording medium; a support member that is arranged inside the first belt and supports the first belt; a second belt that sandwiches the recording medium with the first belt; a pressing roller that is provided with the second belt having an inner peripheral surface wound thereon, is provided rotatably in a direction orthogonal to a recording-medium transport direction as an axial direction, presses the second and first belts toward the support member, and forms a first press region; and a forming member that is provided inside the second belt, at an upstream side in the transport direction with respect to the pressing roller, presses the second and first belts toward the support member, and forms a second press region having a larger width than that of the first press region in the transport direction.

Abstract: There is provided a fixing device. An endless belt comes into contact with a developer image on a recording medium. A heat source is provided on an inner side of the belt and emits radiant heat. A heat transmitting member includes a contact portion which contacts with an inner circumferential surface of the belt, absorbs the radiant heat of the heat source, and transmits the heat to the belt. A deforming unit deforms when a temperature of the contact portion exceeds a predetermined setting temperature, and separates the belt and at least a part of the contact portion from each other.

Abstract: A fixing device includes a heating belt that is provided rotatably around an orthogonal direction orthogonal to a transport direction of a recording medium as an axial direction, and is configured to heat a developer on the recording medium; a support member that is provided inside the heating belt and supports the heating belt; and plural pressing rotational bodies that each are rotatable around the orthogonal direction as an axial direction, are arranged in the transport direction, and are configured to press the heating belt and the recording medium toward the support member.

Abstract: A fixing device includes a first belt that heats a developer image on a recording medium; a support member that is arranged inside the first belt and supports the first belt; a second belt that sandwiches the recording medium with the first belt; a pressing roller that is provided with the second belt having an inner peripheral surface wound thereon, is provided rotatably in a direction orthogonal to a recording-medium transport direction as an axial direction, presses the second and first belts toward the support member, and forms a first press region; and a forming member that is provided inside the second belt, at an upstream side in the transport direction with respect to the pressing roller, presses the second and first belts toward the support member, and forms a second press region having a larger width than that of the first press region in the transport direction.

Abstract: A fixing device includes a heater and a presser. The heater includes an endless heating belt that rotates while heating a recording medium carrying an unfixed toner image. The presser presses against the recording medium in cooperation with the heater to fix the unfixed toner image onto the recording medium. The heater further includes a first plate body extending to form a contact region in contact with an inner surface of the belt, a heat source nipping the first plate body in cooperation with the belt in the contact region, and a second plate body disposed opposite the first plate body with the heat source interposed therebetween and extending at a distance from the heat source. The first plate body has relatively higher heat absorptivity than the second plate body. The second plate body has relatively higher heat reflectivity than the first plate body and is in contact therewith.

Abstract: A fixing device includes a heater and a presser. The heater includes an endless heating belt that rotates while heating a recording medium carrying an unfixed toner image. The presser presses against the recording medium in cooperation with the heater to fix the unfixed toner image onto the recording medium. The heater further includes a first plate body extending to form a contact region in contact with an inner surface of the belt, a heat source nipping the first plate body in cooperation with the belt in the contact region, and a second plate body disposed opposite the first plate body with the heat source interposed therebetween and extending at a distance from the heat source. The first plate body has relatively higher heat absorptivity than the second plate body. The second plate body has relatively higher heat reflectivity than the first plate body and is in contact therewith.

Abstract: A temperature detection device includes a supporting body that includes end portions and a middle portion and that is elastically deformed by being pressed by an object to be detected, both of the end portions being supported at positions separated from the object to be detected, the supporting body having an initial shape such that the middle portion bulges in an arc shape to a position beyond the object to be detected when the supporting body does not receive an external force from the object to be detected; and a temperature detection element that is supported by a contact portion of the supporting body that contacts the object to be detected.

Abstract: An image forming apparatus includes an image forming device that forms an image on a recording medium with a powdery material, the image being sized so as to extend beyond an edge of the recording medium; a collecting device that collects the material that has extended off the recording medium as a result of the image forming device forming the image; and a restricting unit that controls the image forming device in such a manner that the image forming device reduces an amount of use of the material in a region of the image that extends off the recording medium to a larger degree on an outer side of the image than a side of the image near the recording medium.

Abstract: An image forming apparatus includes an image forming device that forms an image on a recording medium with a powdery material, the image being sized so as to extend beyond an edge of the recording medium; a collecting device that collects the material that has extended off the recording medium as a result of the image forming device forming the image; and a restricting unit that controls the image forming device in such a manner that the image forming device reduces an amount of use of the material in a region of the image that extends off the recording medium to a larger degree on an outer side of the image than a side of the image near the recording medium.

Abstract: Provided is a fixing device including a heating rotating body that heats a toner image formed on a recording medium, a pressurizing rotating body including an endless belt that is placed in such a manner that an outer circumferential surface thereof faces the heating rotating body, a first pressurizing member that is placed on a side of an inner circumferential surface of the endless belt and forms a fixing nip portion between the endless belt and the heating rotating body, and a second pressurizing member that guides the recording medium so that the recording medium comes into contact with the heating rotating body on an upstream side of the fixing nip portion in a transportation direction of the recording medium, and a releasing unit that releases pressure contact of the pressurizing rotating body that is in pressure contact with heating rotating body.

Abstract: A cleaning device includes a supporting member; a first cleaning roller that contacts a member to be cleaned and that rotates, separates any matter to be removed that is stuck on the member to be cleaned from the member to be cleaned, and causes the matter to be removed to adhere to the first cleaning roller; a second cleaning roller that contacts the first cleaning roller and rotates, separates the matter to be removed that is stuck on the first cleaning roller from the first cleaning roller, and causes the matter to be removed to adhere to the second cleaning roller; a pair of first bearing members that rotatably support respective ends of the first cleaning roller, and are supported by the supporting member; and a pair of second bearing members that rotatably support respective ends of the second cleaning roller, and are supported by the first bearing members.

Abstract: A cleaning device includes a first cleaning roller that contacts a member to be cleaned and that rotates, separates any matter to be removed that is stuck on the member to be cleaned from the member to be cleaned, and causes the matter to be removed to adhere to the first cleaning roller; a second cleaning roller that contacts the first cleaning roller, separates the matter to be removed that is stuck on the first cleaning roller from the first cleaning roller, and causes the matter to be removed to adhere to the second cleaning roller; a first push member that pushes the first cleaning roller against the member to be cleaned; and a second push member that pushes the second cleaning roller against the first cleaning roller, and pushes the first cleaning roller against the member to be cleaned.

Abstract: A fixing device includes a pair of fixing members that contact each other and that rotate or circulate, and that heat and press a sheet that is transported with a toner image being carried thereby and that is interposed between the fixing members, to fix the toner image to the sheet; and a guide member that guides to a fixing area the sheet that is transported towards the fixing members. The guide member includes a metallic member and resin members. The metallic member has a guide surface that faces the sheet that is transported towards the guide member. The resin members are disposed at the guide surface so as to be spaced apart from each other in a widthwise direction. The resin members protrude from the guide surface and are struck by a front edge of the sheet in the transport direction of the sheet.

Abstract: Provided is a fixing device including a heating rotating body that heats a toner image formed on a recording medium, a pressurizing rotating body including an endless belt that is placed in such a manner that an outer circumferential surface thereof faces the heating rotating body, a first pressurizing member that is placed on a side of an inner circumferential surface of the endless belt and forms a fixing nip portion between the endless belt and the heating rotating body, and a second pressurizing member that guides the recording medium so that the recording medium comes into contact with the heating rotating body on an upstream side of the fixing nip portion in a transportation direction of the recording medium, and a releasing unit that releases pressure contact of the pressurizing rotating body that is in pressure contact with heating rotating body.

Abstract: A cleaning device includes a first cleaning roller and a second cleaning roller. The first cleaning roller contacts a member to be cleaned and rotates, separates any matter to be removed that is stuck on the member to be cleaned from the member to be cleaned, and causes the matter to be removed to adhere to the first cleaning roller. The first cleaning roller has a diameter that decreases continuously from a center thereof towards both ends thereof in a direction of a rotation axis. The member to be cleaned rotates or circulates. The second cleaning roller contacts the first cleaning roller and rotates, separates the matter to be removed that is stuck on the first cleaning roller from the first cleaning roller, and causes the matter to be removed to adhere to the second cleaning roller.

Abstract: A fixing device includes a pair of fixing members and a guide member. The guide member includes a guide plate having a guide surface, a back surface when the guide surface is defined as a front surface, and holes that are spaced apart from each other in a widthwise direction of the sheet and that extend through the guide surface and the back surface; and sheet receiving members that are disposed in correspondence with the holes, each sheet receiving member including a body and an insertion portion that protrudes from the body and that is inserted into the corresponding hole, the insertion portions being inserted into the corresponding holes and being moved along the guide surface, so that the sheet receiving members are mounted to the guide plate while the bodies protrude from the guide surface.

Abstract: A cleaning device includes a first cleaning roller and a second cleaning roller. The first cleaning roller contacts a member to be cleaned, rotates, separates any matter to be removed that is stuck on the member to be cleaned from the member to be cleaned, and causes the matter to be removed to adhere to the first cleaning roller. The member to be cleaned rotates or circulates. The first cleaning roller has an elastic peripheral surface. The second cleaning roller has a peripheral surface whose hardness is higher than that of the first cleaning roller. The second cleaning roller pushes the first cleaning roller and rotates while causing the first cleaning roller to be elastically recessed, to separate the matter to be removed that is stuck on the first cleaning roller therefrom and cause the matter to be removed to adhere to the second cleaning roller.

Abstract: A sheet transport device includes a shaft member that extends in an axial direction orthogonal to a sheet transport direction, and a roller that includes plural components which are assembled together so as to surround the shaft member. The components have a shape such that a joint between the components is formed on an outer peripheral surface of the roller which is formed by assembling the components together. The joint extends from one end to another end of the outer peripheral surface in the axial direction while bending or curving at least at a portion in the middle thereof.

Abstract: A fixing device includes a heating rotating body that heats a developer image formed on a recording medium, a pressurizing rotating body that pressurizes the recording medium by nipping the recording medium between the pressurizing rotating body and the heating rotating body, a pair of support plates that rotatably support both ends of one of the pressurizing rotating body and the heating rotating body, and a release member including an attachment portion attached to the support plates to hold the support plates from both sides in a thickness direction, and an operating portion. When an external force in a predetermined direction acts on the operating portion, the release member releases pressing of the one of the pressurizing rotating body and the heating rotating body against the other by moving the support plates in a direction away from the other.