Abstract: A fixing device includes a rotatable fixing member configured to heat and fix, onto a recording material, a toner image formed on the recording material, a restriction member configured to restrict movement of the rotatable fixing member in a generatrix direction of the rotatable fixing member, and a capture member configured to capture a component vaporized by heat. The capture member is arranged to face a curved surface portion of the rotatable fixing member and is positioned by the restriction member.

Abstract: A fixing device includes a rotatable fixing member configured to heat and fix, onto a recording material, a toner image formed on the recording material, a restriction member configured to restrict movement of the rotatable fixing member in a generatrix direction of the rotatable fixing member, and a capture member configured to capture a component vaporized by heat. The capture member is arranged to face a curved surface portion of the rotatable fixing member and is positioned by the restriction member.

Abstract: A sheet feeding apparatus and an image forming apparatus, which can improve sheet feeding performance at low cost without degrading usability, are provided. Projections 42T and 43T are provided in abutting surfaces, which abut on lateral end of a sheet S, of a pair of lateral-end regulating portions 42 and 43 provided opposite each other. The projections regulates climbing over the lateral-end regulating portions of the sheet S when the sheet S is fed. Guide projections 100a and 100c are provided opposite each other along a cassette attaching direction in an inner wall surface of an attaching space, in which a sheet feeding cassette of an apparatus body is attached. When the sheet S climbs over the projections in feeding the sheet S, the sheet S is abutted on the guide projections to regulate upward movement of the sheet S.

Abstract: A sheet conveying apparatus has a reference guide in which a reference surface that is elongated in a sheet conveying direction and abuts against an end portion of a sheet, an inclined surface which is provided upstream of the reference guide and which is inclined in a width direction intersecting with the sheet conveying direction so that an edge of the sheet is guided, the inclined surface intersecting the reference guide at an intersection, a sheet guide portion, a passage portion having an upstream area which is wider than the sheet guide portion in a vertical direction, a downstream area which is narrower than the upstream area in a vertical direction, and an inclined guide which is provided between the inclined surface and the reference surface, wherein a position of an upstream edge of the downstream area is provided between the intersection and the oblique conveying unit.

Abstract: A sheet feeding apparatus and an image forming apparatus, which can improve sheet feeding performance at low cost without degrading usability, are provided. Projections 42T and 43T are provided in abutting surfaces, which abut on lateral end of a sheet S, of a pair of lateral-end regulating portions 42 and 43 provided opposite each other. The projections regulates climbing over the lateral-end regulating portions of the sheet S when the sheet S is fed. Guide projections 100a and 100c are provided opposite each other along a cassette attaching direction in an inner wall surface of an attaching space, in which a sheet feeding cassette of an apparatus body is attached. When the sheet S climbs over the projections in feeding the sheet S, the sheet S is abutted on the guide projections to regulate upward movement of the sheet S.

Abstract: Positioning in the width direction of a sheet is performed by a skew correcting unit which is provided on a re-conveying path for reversing the sheet and conveying it again to an image forming unit and which has a reference surface that is come into contact with a side edge of the sheet and a plurality of diagonal feed units which obliquely convey the sheet so as to be come into contact with the reference surface. The pressures in nip portions of the other diagonal feed units excluding one of the plural diagonal feed units are reduced or cancelled by a reducing/cancelling unit according to a length in the sheet conveying direction of the sheet which is conveyed.

Abstract: An oblique feeding roller and a reference guide are provided on a re-conveying path for conveying a sheet in which an image has been formed on one side by an image forming unit to the image forming unit again. The sheet is obliquely fed by the oblique feeding roller. A side edge of the sheet abuts to a reference surface provided for the reference guide along a sheet conveying direction, thereby correcting the oblique motion and a positional deviation of the sheet. The reference guide is moved to a position according to a length in a width direction of the sheet which is conveyed by a movement of a cam.

Abstract: An image forming apparatus in which with a guide surface that is disposed upstream of a reference guide and is oblique so as to come close to a central portion in a width direction orthogonal to a sheet conveying direction of a re-conveying path as it extends from upstream to downstream, a sheet having been conveyed with deviated on the opposite side to the central portion side in the re-conveying path from a reference surface of the reference guide, is guided while being changed its orientation to the direction of the reference guide side. Furthermore, with a guide portion disposed along the guide surface, there is formed with respect to the guide surface a space acting to flex an edge portion of the sheet when the sheet is contacted with the guide surface.

Abstract: An image forming apparatus in which with a guide surface that is disposed upstream of a reference guide and is oblique so as to come close to a central portion in a width direction orthogonal to a sheet conveying direction of a re-conveying path as it extends from upstream to downstream, a sheet having been conveyed with deviated on the opposite side to the central portion side in the re-conveying path from a reference surface of the reference guide, is guided while being changed its orientation to the direction of the reference guide side. Furthermore, with a guide portion disposed along the guide surface, there is formed with respect to the guide surface a space acting to flex an edge portion of the sheet when the sheet is contacted with the guide surface.

Abstract: A sheet conveying apparatus according to the invention includes a first conveying path; a sheet reverse conveying portion; a second conveying path; a third conveying path; and a movable guide portion configured to guide the conveyed sheet. The guide portion is moved to a position where the sheet can pass when the sheet is guided from the first conveying path to the second conveying path, and the guide portion is moved to a position where the guide portion guides the sheet to the third conveying path while blocking between the first and second conveying paths such that the sheet can not intrude from the second conveying path into the first conveying path when the sheet conveyed by the sheet reverse conveying portion is conveyed in the second direction.

Abstract: An oblique feeding roller and a reference guide are provided on a re-conveying path for conveying a sheet in which an image has been formed on one side by an image forming unit to the image forming unit again. The sheet is obliquely fed by the oblique feeding roller. A side edge of the sheet abuts to a reference surface provided for the reference guide along a sheet conveying direction, thereby correcting the oblique motion and a positional deviation of the sheet. The reference guide is moved to a position according to a length in a width direction of the sheet which is conveyed by a movement of a cam.

Abstract: An oblique feeding roller and a reference guide are provided on a re-conveying path for conveying a sheet in which an image has been formed on one side by an image forming unit to the image forming unit again. The sheet is obliquely fed by the oblique feeding roller. A side edge of the sheet abuts to a reference surface provided for the reference guide along a sheet conveying direction, thereby correcting the oblique motion and a positional deviation of the sheet. The reference guide is moved to a position according to a length in a width direction of the sheet which is conveyed by a movement of a cam.

Abstract: Positioning in the width direction of a sheet is performed by a skew correcting unit which is provided on a re-conveying path for reversing the sheet and conveying it again to an image forming unit and which has a reference surface that is come into contact with a side edge of the sheet and a plurality of diagonal feed units which obliquely convey the sheet so as to be come into contact with the reference surface. The pressures in nip portions of the other diagonal feed units excluding one of the plural diagonal feed units are reduced or cancelled by a reducing/cancelling unit according to a length in the sheet conveying direction of the sheet which is conveyed.

Abstract: Positioning in the width direction of a sheet is performed by a skew correcting unit which is provided on a re-conveying path for reversing the sheet and conveying it again to an image forming unit and which has a reference surface that is come into contact with a side edge of the sheet and a plurality of diagonal feed units which obliquely convey the sheet so as to be come into contact with the reference surface. The pressures in nip portions of the other diagonal feed units excluding one of the plural diagonal feed units are reduced or cancelled by a reducing/cancelling unit according to a length in the sheet conveying direction of the sheet which is conveyed.

Abstract: A sheet conveying apparatus includes a reference guide, a sheet introducing portion, a passage portion, a sheet guide portion, and an upstream side guide. The upstream side guide is provided at a position away from a sheet conveyed in a thickness direction of the sheet rather than the sheet guide portion so that an inclined surface side of the sheet is deflected when the end portion of the sheet abuts against an inclined surface of the sheet introducing portion. The sheet conveying apparatus further includes an inclined guide which is provided at the downstream side of the upstream side guide in the passage portion, guides the sheet conveyed by the upstream side guide, and is inclined in the thickness direction of the sheet so as to narrow a path interval of the passage portion.

Abstract: A sheet conveying apparatus according to the invention includes a first conveying path; a sheet reverse conveying portion; a second conveying path; a third conveying path; and a movable guide portion configured to guide the conveyed sheet. The guide portion is moved to a position where the sheet can pass when the sheet is guided from the first conveying path to the second conveying path, and the guide portion is moved to a position where the guide portion guides the sheet to the third conveying path while blocking between the first and second conveying paths such that the sheet can not intrude from the second conveying path into the first conveying path when the sheet conveyed by the sheet reverse conveying portion is conveyed in the second direction.

Abstract: An oblique feeding roller and a reference guide are provided on a re-conveying path for conveying a sheet in which an image has been formed on one side by an image forming unit to the image forming unit again. The sheet is obliquely fed by the oblique feeding roller. A side edge of the sheet abuts to a reference surface provided for the reference guide along a sheet conveying direction, thereby correcting the oblique motion and a positional deviation of the sheet. The reference guide is moved to a position according to a length in a width direction of the sheet which is conveyed by a movement of a cam.

Abstract: An image forming apparatus in which with a guide surface that is disposed upstream of a reference guide and is oblique so as to come close to a central portion in a width direction orthogonal to a sheet conveying direction of a re-conveying path as it extends from upstream to downstream, a sheet having been conveyed with deviated on the opposite side to the central portion side in the re-conveying path from a reference surface of the reference guide, is guided while being changed its orientation to the direction of the reference guide side. Furthermore, with a guide portion disposed along the guide surface, there is formed with respect to the guide surface a space acting to flex an edge portion of the sheet when the sheet is contacted with the guide surface.

Abstract: An image-forming apparatus includes a movable lever which functions as a recording medium detector for detecting the passage of a recording medium and a temperature detecting portion provided on the movable lever. The temperature of the recording medium is detected without providing an additional space for a sensor for detecting the temperature of the recording medium.

Abstract: Positioning in the width direction of a sheet is performed by a skew correcting unit which is provided on a re-conveying path for reversing the sheet and conveying it again to an image forming unit and which has a reference surface that is come into contact with a side edge of the sheet and a plurality of diagonal feed units which obliquely convey the sheet so as to be come into contact with the reference surface. The pressures in nip portions of the other diagonal feed units excluding one of the plural diagonal feed units are reduced or cancelled by a reducing/cancelling unit according to a length in the sheet conveying direction of the sheet which is conveyed.