Abstract: A recording material processing apparatus includes first teeth that are used for binding processing of a recording material bundle; second teeth that move along a linear route toward the first teeth and presses the recording material bundle located between the first teeth and the second teeth; and a guide portion that is disposed along the linear route and guides the second teeth moving toward the first teeth.

Abstract: A binding device includes a pressing member that has a first tooth, which forms unevenness in a recording material bundle, and a second tooth, which is paired with the first tooth and forms unevenness in the recording material bundle, and presses the recording material bundle with the recording material bundle sandwiched between the first tooth and the second tooth and a control unit that performs control such that pressing is released after a timing when a load on the pressing member decreases from start of pressing of the recording material bundle by the pressing member.

Abstract: A recording material processing apparatus includes first teeth that are used for binding processing of a recording material bundle; second teeth that move along a linear route toward the first teeth and presses the recording material bundle located between the first teeth and the second teeth; and a guide portion that is disposed along the linear route and guides the second teeth moving toward the first teeth.

Abstract: A binding apparatus includes: a first toothed part including teeth arranged in one direction; and a second toothed part that includes teeth arranged in the one direction and is configured to mesh with the first toothed part and to press a bundle of sheets, wherein at least one first groove is formed between adjacent teeth of the first toothed part, the first groove has cross-sectional areas at central and end portions in a direction orthogonal to the one direction and a direction in which the first and second toothed parts mesh with each other, the one direction and the orthogonal direction are normal to the cross-sectional areas, and the cross-sectional area at the end portion is larger than the cross-sectional area at the central portion.

Abstract: A binding device includes a pressing member that has a first tooth, which forms unevenness in a recording material bundle, and a second tooth, which is paired with the first tooth and forms unevenness in the recording material bundle, and presses the recording material bundle with the recording material bundle sandwiched between the first tooth and the second tooth and a control unit that performs control such that pressing is released after a timing when a load on the pressing member decreases from start of pressing of the recording material bundle by the pressing member.

Abstract: An image forming apparatus includes: a needleless binding device configured to form a recessed or raised impression as a needleless binding part by performing needleless binding on a bundle of sheets; an environment sensor; and a controller configured to perform, based on a value detected by the environment sensor, control to display a confirmation image requesting a user to make confirmation on the needleless binding prior to execution of the needleless binding.

Abstract: A binding apparatus includes: a set of binding parts configured to press and bind a bundle of recording materials from one side and a remaining side in a thickness direction; a first support part configured to support the bundle of recording materials from the one side by performing rotation toward the bundle of recording materials around a predetermined fulcrum; and a second support part configured to support the bundle of recording materials from the remaining side so as to face the first support part when binding is performed by the set of binding parts.

Abstract: A binding apparatus includes: a first pressing part that presses a recording material bundle; and a second pressing part that is pushed out toward the first pressing part and presses the recording material bundle. When a recording material or the recording material bundle enters a pressing area where the first pressing part and the second pressing part face each other, at least one of the first pressing part and the second pressing part retreats more downstream than the pressing area in a direction where the recording material or the recording material bundle enters the pressing area.

Abstract: An image forming apparatus includes: a needleless binding device configured to form a recessed or raised impression as a needleless binding part by performing needleless binding on a bundle of sheets; an environment sensor; and a controller configured to perform, based on a value detected by the environment sensor, control to display a confirmation image requesting a user to make confirmation on the needleless binding prior to execution of the needleless binding.

Abstract: A binding member includes: an upper tooth that has an upper tooth form for forming unevenness in a bundle of recording materials; and a lower tooth that has a lower tooth form for forming unevenness in the bundle of recording materials and that forms a pair with the upper tooth. At least one of the upper tooth form and the lower tooth form is formed such that, in a sectional shape, a groove is formed in a trough portion of a concave portion of a tooth form and a length of an inclined portion which comes into contact with the bundle of recording materials is made small compared to a case where the inclined portion of the tooth form has reached a bottom of the trough portion.

Abstract: An image forming apparatus includes: a needleless binding device configured to form a recessed or raised impression as a needleless binding part by performing needleless binding on a bundle of sheets; an environment sensor; and a controller configured to perform, based on a value detected by the environment sensor, control to display a confirmation image requesting a user to make confirmation on the needleless binding prior to execution of the needleless binding.

Abstract: A binding apparatus includes: a first pressing part that presses a recording material bundle to bind the recording material bundle; a second pressing part that faces the first pressing part; and a pushout part that is formed as a member different from the second pressing part for pushing out the second pressing part toward the first pressing part. The second pressing part is supported to be movable with respect to the pushout part and, when pushed out by the pushout part, presses the recording material bundle.

Abstract: A binding unit includes a first pressing part that presses a recording material bundle to bind the recording material bundle, a second pressing part that faces the first pressing part, and a pushout part that pushes out the second pressing part toward the first pressing part by acting on the second pressing part using an upper shaft lever and by varying a distance from a start portion serving as a start point of pushout movement to the upper shaft lever. The start portion is formed integrally with a member at which the first pressing part is formed.

Abstract: A binding unit includes a pressing portion that binds a recording material bundle, which includes a first pressing portion pressing against the recording material bundle in order to bind the recording material bundle and a second pressing portion facing the first pressing portion, an extruding portion that is separately formed from the second pressing portion, and extrudes the second pressing portion toward the first pressing portion, and a driving source that drives the extruding portion, in which the extruding portion is connected to the pressing portion, the pressing portion retracts to a downstream side in a direction where a recording material enters when the recording material enters, and the driving source does not operate in conjunction with movement of the reaction of the pressing portion.

Abstract: A sheet processing device includes a first pressing unit that presses sheets with a first force, and a second pressing unit that presses the sheets with a second force larger than the first force after the sheets are pressed with the first force. The sheets are bound by the second force.

Abstract: An image forming apparatus includes: a needleless binding device configured to form a recessed or raised impression as a needleless binding part by performing needleless binding on a bundle of sheets; an environment sensor; and a controller configured to perform, based on a value detected by the environment sensor, control to display a confirmation image requesting a user to make confirmation on the needleless binding prior to execution of the needleless binding.

Abstract: A binding apparatus includes: a set of binding parts configured to press and bind a bundle of recording materials from one side and a remaining side in a thickness direction; a first support part configured to support the bundle of recording materials from the one side by performing rotation toward the bundle of recording materials around a predetermined fulcrum; and a second support part configured to support the bundle of recording materials from the remaining side so as to face the first support part when binding is performed by the set of binding parts.

Abstract: A binding apparatus includes: a first toothed part including teeth arranged in one direction; and a second toothed part that includes teeth arranged in the one direction and is configured to mesh with the first toothed part and to press a bundle of sheets, wherein at least one first groove is formed between adjacent teeth of the first toothed part, the first groove has cross-sectional areas at central and end portions in a direction orthogonal to the one direction and a direction in which the first and second toothed parts mesh with each other, the one direction and the orthogonal direction are normal to the cross-sectional areas, and the cross-sectional area at the end portion is larger than the cross-sectional area at the central portion.

Abstract: A sheet processing device includes a binding mechanism that has two pivot members opposed to each other to pivot on a pivot and binds sheets with a pressure by clamping the sheets between the two pivot members, a transmission member that transmits a force to pivot the two pivot members, and an intermediate member that transmits, to the binding mechanism, the force from the transmission member as the pressure with which the two pivot members clamp the sheets. When the intermediate member is in contact with the transmission member to transmit the force from the transmission member to the binding mechanism, the transmission member is held between the intermediate member and a shaft member provided at the pivot of the binding mechanism.

Abstract: A binding unit includes a first pressing part that presses a recording material bundle to bind the recording material bundle, a second pressing part that faces the first pressing part, and a pushout part that pushes out the second pressing part toward the first pressing part by acting on the second pressing part using an upper shaft lever and by varying a distance from a start portion serving as a start point of pushout movement to the upper shaft lever. The start portion is formed integrally with a member at which the first pressing part is formed.