Abstract:
A method for erasing an image (including a character) formed on a printed matter easily and quickly at a low cost, and a device employing such a method. The image is erased by bringing an oxidative gas generated from a remote plasma equipment into contact with a colored part which is composed of a dye forming the image (including a character) on the printed matter.
Abstract:
Disclosed is a method for erasing an image which is formed on a recording medium by applying an ink containing a dye. This image erasing method is characterized in that the image is exposed to an oxidizing gas which is generated by dielectric barrier discharge. Also disclosed are an apparatus for carrying out such an image erasing method, and a method for reclaiming a recording medium wherein such an image erasing method is performed.
Abstract:
This invention provides a method for erasing an image, comprising exposing an image, formed by applying a coloring matter-containing ink onto a recording medium, to an oxidizing gas produced by discharge, characterized in that the coloring matter is an anionic anthraquinone coloring matter. There is also provided a method for reproducing a recording medium.
Abstract:
Provided is a porous material excellent in heat insulating property, mechanical property, and surface properties (such as adhesiveness and abrasion property). The porous material is a polymer porous film of a single layer, including a first porosity size changing portion (613) formed of independent porosities each showing a gradual increase in porosity size across a region accounting for 10% or more of a film thickness from a first surface side (611) toward a second surface side (612).
Abstract:
An organic luminescence device capable of luminescence at a high efficiency, a high luminance and high durability is formed by a pair of electrodes comprising an anode and a cathode, and at least one organic layer disposed between the electrodes. The at least one organic layer includes at least one layer comprising a polymerized film of organic layer having at least two polymerizable double bonds.
Abstract:
An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes. The organic compound layer is composed of an organic compound represented by the following general formula (1): wherein X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic group, each of at least two groups among Ar , Ar , Ar , and Ar is a substituted or unsubstituted fluorenyl group, and the remainder represents a substituted or unsubstituted aryl group.
Abstract:
An electrophotographic photosensitive member is constituted by disposing a photosensitive layer including a charge generation layer and a charge transport layer on an electroconductive support. The charge transport layer has a thickness of at most 12 mu m and is formed by dispersing therein particles having a particle size of 1 - 3 mu m at a density of 1x10 - 2x10 particles/mm . The charge transport layer and the particles described above provides a difference in refractive index of at least 0.10. The photosensitive member is effective in providing good images free from black spots and interference fringes and with a good gradation-reproducing characteristic when used as a structural member of a process cartridge and an image forming apparatus.
Abstract:
A photosensitive member for electrophotography comprising an electroconductive substrate, and an intermediate layer and a photosensitive layer disposed in this order on the substrate; the intermediate layer comprising a resin component and a salt; the intermediate layer containing the salt in an amount of 1-800 ppm based on the weight of the resin component.
Abstract:
An image forming apparatus is constituted by an electrophotographic photosensitive member including a support and a photosensitive layer disposed on the support, charging means for charging the photosensitive member, exposure means for illuminating the charged photosensitive member with a light beam, developing means, and transfer means. The exposure means illuminates the charged photosensitive member with a light beam having a spot area (S) and said photosensitive layer has a thickness (T), wherein S and T provides the product (S x T) of at most 20,000 mu m which is effective in improving a resolution and gradation reproducibility. The photosensitive member and at least one means selected from the group consisting of charging means, developing means, and cleaning means may preferably be integrally supported to form a process cartridge which is detachably mountable to an image forming apparatus main body.