A nonadhesive phase-change material application apparatus for bonding the tail of a convolutely wound log to the body is provided. The nonadhesive phase-change material application apparatus has at least one nonadhesive phase-change material applicator that defines a cavity conveying a volume of nonadhesive phase-change material from a reservoir to an application site.

An image forming apparatus includes a belt conveyance device that corrects leaning of an endless belt member, the belt conveyance device being detachably attachable to an apparatus body of the image forming apparatus; a first guiding portion that supports a first guided portion provided in a frame member supporting rotatably a first roller on which the belt member is laid under tension and guides the belt conveyance device being attached to or detached from the apparatus body; and a second guiding portion that supports a second guided portion provided in a steering unit supporting rotatably a second roller on which the belt member is laid under tension, releases the second guided portion at an attachment position of the belt conveyance device to the apparatus body, and guides the belt conveyance device being attached to or detached from the apparatus body.

To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

A reeling shaft transfer rail system has two parallel substantially horizontal or slightly sloped rails for supporting the ends (25) of a reeling shaft (20). Hoses are arranged on each of the transfer rails (15) and filled or drained to move and hold the reeling shaft (20). In a method of transferring reeling shafts on transfer rails, the reeling shafts (20) are transferred on two parallel, substantially horizontal or slightly downstream of a main transfer direction inclined transfer rails (15) for supporting each of the supporting ends (25) of a reeling shaft (20). The reeling shafts (20) are transferred or positioned in the reeling shaft transfer rail system (10) by pressurizing hoses (17) arranged on each of the transfer rails. The hoses are arranged so fluid added to or withdrawn from the hoses pushes or holds the reeling shaft (20) on the transfer rails (15).

Embodiments of a compressed and coreless roll of sheet product having a center indicator are disclosed. According to an embodiment of the present invention, a compressed coreless roll of sheet product is provided. The compressed coreless roll of sheet product includes a sheet product having a first end and a second end. The sheet product is wound about an axis beginning with the first end and ending with the second end to partially define an axial cavity along the axis. The first end includes an indicator that is visible when the sheet product roll is compressed such that the axial cavity is substantially collapsed.

To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

A post-processing device includes a paper alignment tray on which a plurality of papers is aligned and a stapleless binder including a stapleless binding portion to compress and bind the plurality of papers and a nozzle in the stapleless binding portion that supplies water vapor to the plurality of papers.

To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

An image forming apparatus includes: a belt conveyance device that corrects leaning of an endless belt member, the belt conveyance device being detachably attachable to an apparatus body of the image forming apparatus; a first guiding portion that supports a first guided portion provided in a frame member supporting rotatably a first roller on which the belt member is laid under tension and guides the belt conveyance device attached to or detached from the apparatus body; and a second guiding portion that supports a second guided portion provided in a steering unit supporting rotatably a second roller on which the belt member is laid under tension, releases the second guided portion at an attachment position of the belt conveyance device to the apparatus body, and guides the belt conveyance device attached to or detached from the apparatus body.