Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Seijiro Takahashi

Haruo Horiguchi

Toyoko Shibata

Takeshi Ishida

Toshiyuki Fujita

Masahiko Kurachi

Seisuke Maeda

Hirofumi Hayata

Kouji Sugama

Tomohiro Oshiyama

Keiichi Inagaki

Hiroshi Nakahara

Yukiko Kusano

Daisuke Kodama

Michiyo Fujita

Kazutoshi Kobayashi

Yukio Hosoya

Tomoko Sakimura

Taiki Amemiya

Kazukuni Nishimura

Hidekazu Kawasaki

Hiroshige Kidera

Provided is a polymer that includes a predetermined structural unit derived from an azomethine derivative having a polymerizable group and is reversibly fluidized and non-fluidized by being irradiated with light.

Photoresponsive high-molecular weight material, adhesive, toner, and image forming method

An electrophotographic image forming system forms an electrostatic latent image on at least a photoreceptor, develops an image using an electrostatic charge image developing toner, and removes the toner using a cleaning blade. A tip ridge of the cleaning blade is pressed against a surface of the photoreceptor. The system includes a photosensitive layer of the photoreceptor and a surface protecting layer that is provided on a surface of the photosensitive layer. The surface protecting layer includes a polymerizable monomer having at least two polymerizable groups in a molecule and a polymer of a hole transporting compound having a polymerizable group represented by General formula (1). The tip ridge of the cleaning blade has an edge angle that is obtuse and less than 120° and is pressed against the surface of the photoreceptor at an effective contact angle that is in a range of 8 to 20°.

Electrophotographic image forming system with cleaning blade

Disclosed is a compound containing a specific structure having an azomethine part, the compound being reversibly fluidized and non-fluidized by being irradiated with light.

Photoresponsive low-molecular weight material, adhesive, toner, and image forming method

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.

Stereoscopic image forming method and stereoscopic image forming apparatus

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.

Image post-processing method, image post-processing apparatus and image forming apparatus

A toner includes toner particles, wherein the toner particles contain a polymer containing a structural unit derived from an azobenzene derivative having a polymerizable group.

Toner and image forming method

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&#xb0; 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.

Image post-processing method and apparatus for emitting a glossiness control light, and image forming apparatus

There is disclosed an image post-processing method for adjusting glossiness of a fixed toner image. The image post-processing method includes a glossiness control step of, with a non-contact heating device, heating a toner image fixed to a recording medium so as to reduce glossiness of the toner image. The non-contact heating device is configured to heat the toner image fixed to the recording medium to a temperature which reduces the glossiness of the fixed toner image.

Gloss reduction in image post-processing method, image post-processing apparatus, and image forming apparatus

Provided is an image recording composition used for an electrostatic image developing toner or an ink-jet ink, containing a photoisomerization compound which is a stilbene derivative having a structure represented by Formula (1), wherein Rrepresents an electron donating group; Rrepresents an electron withdrawing group; Rto Reach independently represent a hydrogen atom or an alkyl group which may have a branch, provided that at least one of Rto Rrepresents an alkyl group which may have a branch.

Image recording composition, electrostatic image developing toner, and image forming method

An object of the present invention is achieved by an image forming method containing the steps of: forming a toner image by developing an electrostatic latent image with a toner; transferring the toner image on a recording medium; and fixing the toner image on the recording medium, wherein the fixing step of the toner image on the recording medium further contains the steps of: irradiating light having a wavelength range of 280 to 480 nm to the toner image; and applying pressure to the toner image.

Image forming method, image forming apparatus, and toner image fixing apparatus

An image forming method uses a toner including toner particles including a binder resin and an ultraviolet light absorber. Content of the ultraviolet light absorber is within a range of 0.1 to 50 mass % with respect to total mass of the toner particles. The method includes: transferring a toner image formed with the toner on a recording medium; and irradiating the toner image transferred on the recording medium with monochromatic light having a maximum emission wavelength within a wavelength range of 280 to 550 nm to melt and fix the toner image.

Image forming apparatus and method using UV light and toner with UV absorber

The present invention provides means for improving the softening rate in photoirradiation and image fixation property. The toner according to the present invention includes an azobenzene derivative represented by the following chemical formula (1), and in the chemical formula (1), Rto Rin the following are groups defined in claim. 

Toner and image formation method

Provided is an electrophotographic photoreceptor including a conductive support having thereon an intermediate layer, a charge generating layer, a charge transporting layer, and a protective layer sequentially laminated in that order, wherein the intermediate layer contains rutile type titanium oxide particles, and 50% or more of the rutile type titanium oxide particles have an organic compound on a surface of the titanium oxide particles; the charge generating layer has a pigment containing a 2,3-butanediol adduct of a phthalocyanine compound; the charge transporting layer contains a charge transporting material having an ionization potential of 5.45 to 5.60 eV; and the protective layer contains metal oxide particles and the charge transporting material in a cured resin prepared by curing a polymerizable compound.

Electrophotographic photoreceptor and image-forming apparatus

An electrophotographic image forming apparatus using an organic photoreceptor in which at least a charge generation layer, a charge transport layer, and a protective layer are laminated in order on a conductive support includes at least a unit for supplying a lubricant onto a surface of the organic photoreceptor and a unit for removing toner remaining on the surface of the organic photoreceptor with a cleaning blade, and satisfying the following conditions (1) to (3): (1) the protective layer of the organic photoreceptor contains at least metal oxide fine particles in a cured resin obtained by curing a polymerizable compound; (2) a universal hardness of the surface of the organic photoreceptor is in a range of 220 to 280 N/mm; and (3) a JIS-A hardness of a portion of the cleaning blade to be abutted on the organic photoreceptor is in a range of 70 to 78&#xb0;.

Electrophotographic image forming apparatus containing organic photoreceptor, unit for supplying lubricant, and cleaning blade

The organic photoreceptor includes a conductive support, an organic photosensitive layer, and a surface layer made of a cured resin, which are stacked in this order. The surface layer is obtained by curing a composition containing a radical polymerizable compound for forming the cured resin, metal oxide fine particles having a surface treated with a silane coupling agent, and a silane compound represented by the following general formula (1), wherein Rto Reach independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 20 carbon atoms, and at least one of Rto Rrepresents an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 20 carbon atoms.

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Kokubunji, Japan

Seijiro Takahashi