Abstract: A discharging device includes an aligning unit for aligning stacked sheets as a sheet bundle, a discharging unit for discharging the sheet bundle, a discharged tray on which the sheet discharged by the discharging unit is stacked, and a support unit. The support unit supports the sheet bundle from below by extending in a sheet discharging direction of the sheet bundle while the sheet bundle is discharged to the discharged tray and to be accommodated in a direction opposite to the sheet discharging direction at timing when the discharging unit finishes discharging the sheet bundle.

Abstract: A discharging device includes an aligning unit for aligning stacked sheets as a sheet bundle, a discharging unit for discharging the sheet bundle, a discharged tray on which the sheet discharged by the discharging unit is stacked, and a support unit. The support unit supports the sheet bundle from below by extending in a sheet discharging direction of the sheet bundle while the sheet bundle is discharged to the discharged tray and to be accommodated in a direction opposite to the sheet discharging direction at timing when the discharging unit finishes discharging the sheet bundle.

Abstract: A heater of the invention includes a substrate; a first conductive element and a second conductive element which are provided on the substrate along a longitudinal direction of the substrate; a heat generating element which is provided between the first conductive element and the second conductive element and generates heat with power supplied via the first conductive element and the second conductive element; and an electrode to which a conductive member for suppling power is connected, in which a heat generation amount of a region corresponding to a position at which an electrode of the heat generating element is provided is set to be greater than a heat generation amount of other regions.

Abstract: A heater of the invention includes a substrate; a first conductive element and a second conductive element which are provided on the substrate along a longitudinal direction of the substrate; a heat generating element which is provided between the first conductive element and the second conductive element and generates heat with power supplied via the first conductive element and the second conductive element; and an electrode to which a conductive member for suppling power is connected, in which a heat generation amount of a region corresponding to a position at which an electrode of the heat generating element is provided is set to be greater than a heat generation amount of other regions.

Abstract: A heater of the invention includes a substrate; a first conductive element and a second conductive element which are provided on the substrate along a longitudinal direction of the substrate; a heat generating element which is provided between the first conductive element and the second conductive element and generates heat with power supplied via the first conductive element and the second conductive element; and an electrode to which a conductive member for supplying power is connected, in which a heat generation amount of a region corresponding to a position at which an electrode of the heat generating element is provided is set to be greater than a heat generation amount of other regions.

Abstract: A fixing device includes a cylindrical film a pressing member, and a preventing member including a preventing surface configured to prevent movement of the film in a longitudinal direction, and a film rotation guiding surface. As viewed in the longitudinal direction of the film, the preventing surface includes first and second regions positioned downstream and upstream, respectively, of a nip center line with respect to a recording material feeding direction. The first region retracts from a longitudinal film end surface relative to the second region. The second region continuously extends in the recording material feeding direction from a portion upstream of the nip center line to a portion downstream of the nip center line, and has a length, with respect to a rotational direction of the film, that is greater at the portion upstream of the nip center line than at the portion downstream of the nip center line.

Abstract: A fixing unit includes a fixing portion including a rotatable heating member and a rotatable pressing member, a feeding portion including a first rotatable member and a second rotatable member, a main assembly, an openable member rotatably provided to the main assembly through a shaft and a bearing portion, an urging member, an engaging portion, and a portion to be engaged. The openable member has a rotation center provided at a position at which a direction of moment acting on the openable member by an urging force of the urging member is the same as a direction in which the openable member opens. The bearing portion includes an elongated hole having a long axis extending along an urging direction of the urging member.

Abstract: A fixing device includes a cylindrical film, and a plate heater including an electrode portion provided outside of an end portion of the film with respect to a longitudinal direction of the film at an end portion of the heater, with a lubricant being applied in a region where the heater contacts the film. A supporting member supports a surface of the heater. In addition, a sealing member contacts a surface of the heater where the electrode portion of the heater is provided, and is provided at a position closer to a center of the heater than is the electrode portion. Further, the sealing member includes an engaging portion engaging with an end portion of the supporting member with respect to a widthwise direction of the heater, and a cantilever contact portion contacting a surface of the heater where the electrode portion is provided.

Abstract: A fixing device includes a rotatable cylindrical film, a contact member, a nip forming member, and regulating member. The regulating member includes an inner surface regulating surface that contacts and regulates a position of an inner surface of the film, and that, with respect to a rotational direction of the film, includes a first region remotest from a nip and a second region closer to the nip than the first region, the second region being positioned in a side upstream of a center of the nip with respect to a recording material feeding direction. The inner surface regulating surface is inclined so as to be spaced from the inner surface of the film toward a longitudinal center of the film, and a degree of inclination of the inner surface regulating surface is greater in the first region than in the second region.

Abstract: A fixing device for fixing an image formed on a recording material onto the recording material. The fixing device includes a heater contacting an inner surface of the film, a supporting member for supporting the heater, the supporting member being provided in a hollow space, a first portion for preventing lateral movement of the film in a generatrix direction of the film, the first portion being supported by a frame of the fixing device and holding the supporting member, and a second portion opposed to a surface of the heater where the heater contacts the film and elongated along a widthwise direction of the heater, the second portion being provided at the same position with the generatrix direction of the film.

Abstract: A fixing unit includes a fixing portion including a rotatable heating member and a rotatable pressing member; a feeding portion including a first rotatable member and a second rotatable member; a main assembly; an openable member rotatably provided to the main assembly through a shaft and a bearing portion; an urging member; an engaging portion; and a portion-to-be-engaged. The openable member has a rotation center provided in a position where a direction of moment acting on the openable member by an urging force of the urging member is the same as a direction in which the openable member opens. The bearing portion includes an elongated hole having a long axis extending along an urging direction of the urging member.

Abstract: A fixing device includes a cylindrical film; a pressing member, and a preventing member including a preventing surface configured to prevent movement of the film in a longitudinal direction and a film rotation guiding surface. As viewed in the longitudinal direction of the film, the preventing surface includes first and second regions positioned downstream and upstream, respectively, of a nip center line with respect to a recording material feeding direction. The first region retracts from a longitudinal film end surface relative to the second region. The second region continuously extends in the recording material feeding direction from a portion upstream of a nip center line to a portion downstream of the nip center line, and has a length, with respect to a rotational direction of the film, longer at the portion upstream of the nip center line than at the portion downstream of the nip center line.

Abstract: A fixing device includes a cylindrical film; a contact member, a nip forming member, and a regulating member provided at a longitudinal end portion of the film and including an inner surface regulating surface. As viewed in a longitudinal direction of the film, with respect to a rotational direction of the film, the inner surface regulating surface includes a first region remotest from the nip and a second region closer to the nip than the first region is. The inner surface regulating surface is inclined so as to be spaced from the inner surface of the film toward a longitudinal center of the film with respect to a longitudinal direction of the film, and a degree of inclination of the inner surface regulating surface is larger in the first region than in the second region.

Abstract: A fixing device for fixing an image formed on a recording material onto the recording material. The fixing device includes a heater contacting an inner surface of the film, a supporting member for supporting the heater, the supporting member being provided in a hollow space, a first portion for preventing lateral movement of the film in a generatrix direction of the film, the first portion being supported by a frame of the fixing device and holding the supporting member, and a second portion opposed to a surface of the heater where the heater contacts the film and elongated along a widthwise direction of the heater, the second portion being provided at the same position with the generatrix direction of the film.

Abstract: A fixing device includes a cylindrical film; a plate heater including an electrode portion, wherein a lubricant is applied in a region where the heater contacts the film; a supporting member; and a sealing member contacting a surface of the heater where the electrode portion of the heater is provided, the sealing member being provided at a position closer to a center of the heater than the electrode portion is. The sealing member includes an engaging portion engaging with an end portion of the supporting member with respect to a widthwise direction of the heater and a cantilever contact portion contacting the surface of the heater where the electrode portion is provided.

Abstract: A fixing device includes a cylindrical film; a plate heater including an electrode portion, wherein a lubricant is applied in a region where the heater contacts the film; a supporting member; and a sealing member contacting a surface of the heater where the electrode portion of the heater is provided, the sealing member being provided at a position closer to a center of the heater than the electrode portion is. The sealing member includes an engaging portion engaging with an end portion of the supporting member with respect to a widthwise direction of the heater and a cantilever contact portion contacting the surface of the heater where the electrode portion is provided.

Abstract: A heater of the invention includes a substrate; a first conductive element and a second conductive element which are provided on the substrate along a longitudinal direction of the substrate; a heat generating element which is provided between the first conductive element and the second conductive element and generates heat with power supplied via the first conductive element and the second conductive element; and an electrode to which a conductive member for supplying power is connected, in which a heat generation amount of a region corresponding to a position at which an electrode of the heat generating element is provided is set to be greater than a heat generation amount of other regions.

Abstract: A heater of the present disclosure includes an insulating substrate, a heating element formed on the substrate, an electrode connected to the heating element, and an insulating layer covering the heating element. In the heater, in a direction orthogonal to a surface of the substrate, a surface of the electrode is protruded with respect to a surface of the insulating layer.

Abstract: A contacting portion of a shutter appears in front of a container opening to be at a position where the contacting portion contacts with a sealing member provided in an edge of a storage body opening of a developer storage body when the shutter is at an opening position, and is separated from the sealing member to move into a container frame when the shutter moves from the opening position to a closing position. A non-contacting portion of the shutter is provided on an upstream-side of the contacting portion in a moving direction from the opening position to the closing position and is positioned inside the frame when the shutter is at the opening position, and moves to a position where the non-contacting portion appears in front of the container opening without making contact with the sealing member when the shutter moves from the opening position to the closing position.

Abstract: A contacting portion of a shutter appears in front of a container opening to be at a position where the contacting portion contacts with a sealing member provided in an edge of a storage body opening of a developer storage body when the shutter is at an opening position, and is separated from the sealing member to move into a container frame when the shutter moves from the opening position to a closing position. A non-contacting portion of the shutter is provided on an upstream-side of the contacting portion in a moving direction from the opening position to the closing position and is positioned inside the frame when the shutter is at the opening position, and moves to a position where the non-contacting portion appears in front of the container opening without making contact with the sealing member when the shutter moves from the opening position to the closing position.