A static elimination device includes: a first static elimination member that makes contact with a medium that is transported; a second static elimination member arranged such that the medium is inserted between the first static elimination member and the second static elimination member; and a power source that applies a voltage to at least one of the first static elimination member or the second static elimination member, in which at least one of the first static elimination member and the second static elimination member has an elastic body.

In a sealed letter producing device which folds and seals, with a content, an envelope sheet on which pressure-sensitive adhesives are provided, sealing with pressure rollers smaller than in conventional rollers is achieved. Pressure-sensitive adhesives 106 are provided in both edge portions in the width direction of an envelope sheet 100, and remoistening paste 107 is provided inwardly of both edge portions. The remoistening paste is moistened when the envelope sheet wrapping a content is bent and formed into an envelope 50, the entire surface of the envelope is pressurized by low-pressure rollers and adhered with the remoistening paste, and further only both edge portions of the envelope 50 are pressurized by an upper and lower set and a left and right pair of the pressure rollers 80, 80 having a small width to adhere the pressure-sensitive adhesive 106. High pressure required for adhesion of the pressure-sensitive adhesives is only necessary in both edge portions of the envelope, and therefore small pressure rollers 80 will suffice.

Print glossing is described. Print glossing can be performed on a glossing drum having a location affixed to a circumferential outer surface thereof, where the location transits from a first position in an apparatus having a first temperature range selected to enable reflow of ink applied to a substrate that is placed at the location to a second position in the apparatus having a second temperature range selected for clean release from the location of the ink applied to the substrate.

An adhesion apparatus includes: an image forming unit configured to form, through an electrophotographic process, an adhesive image of a powder adhesive on a sheet that is conveyed; and a control unit configured to control the image forming unit to use a first pattern in a first conveyance period, and use a second pattern different from the first pattern in a second conveyance period following the first conveyance period, as a formation pattern in an adhering section corresponding to part of a width direction orthogonal to a conveyance direction of the sheet.

A stereoscopic image forming method forms a color stereoscopic image on a recording medium having a thermal expansion property. The stereoscopic image forming method includes the steps of: fixing a color image on the thermally expandable recording medium using a color material; and irradiating the fixed color image with light of a light source having a maximum emission wavelength in a wavelength range of 280 to 780 nm. This light is absorbed by a compound contained in the color material to generate heat of the compound.

A static elimination device includes: a first static elimination member that makes contact with a medium that is transported; a second static elimination member arranged such that the medium is inserted between the first static elimination member and the second static elimination member; and a power source that applies a voltage to at least one of the first static elimination member or the second static elimination member, in which at least one of the first static elimination member and the second static elimination member has an elastic body.

Provided is a stereoscopic image forming method for forming a color stereoscopic image on a recording medium having a thermal expansion property, the stereoscopic image forming method including the steps of: fixing a color image on the thermally expandable recording medium using a color material; and irradiating the fixed color image with light of a light source having a maximum emission wavelength in a wavelength range of 280 to 780 nm that is absorbed by a compound contained in the color material to generate heat of the compound.

An image post-processing method includes a glossiness control step of irradiating a fixed toner image with a glossiness control light. The toner image is formed with a toner containing a compound that absorbs light. The glossiness control light is capable of at least reducing a glossiness of the fixed toner image. The glossiness control light has a maximum emission wavelength in a wavelength region which is absorbed by the compound.

There is disclosed an image post-processing method for adjusting glossiness of a fixed toner image. The method includes a glossiness control step and a temperature control step. The glossiness control step is a step of, to a toner image formed of a toner containing a light absorbing compound and fixed to a recording medium, emitting glossiness control light so as to reduce or increase glossiness of the toner image. The temperature control step is a step of heating the toner image immediately before the light is emitted to the toner image such that the toner image has a surface temperature which is at least 20 C. lower than a softening temperature of the toner. The glossiness control light has a maximum emission wavelength in a wavelength range in which the compound absorbs light and is made to at least reduce the glossiness of the toner image.

Provided is a powder pasting device for pasting powder on an image pattern formed on one main surface of a recording medium, the powder pasting device includes: a powder holding member having a powder holding surface holding powder by sticking; a powder supplying member that supplies powder to the powder holding surface; a rubbing member that rubs the powder holding surface to which powder has been supplied from the powder supplying member; and a facing member that is disposed at a position facing the powder holding surface of the powder holding member, sandwiches a recording medium having an image pattern functioning as an adhesive between the powder holding surface and the facing member, and thereby transfers the powder held on the powder holding surface by sticking onto the image pattern.