Abstract: The present invention aims to provide an process for image formation using an electrophotographic image-receiving sheet having excellent anti-offset properties, adhesion resistance, paper transport properties and gloss, and being resistant to cracks, and able to form a high-definition image. For this purpose, there is provided an electrophotographic image-receiving sheet which includes a toner image-receiving layer containing at least a thermoplastic resin and natural wax having an light transmittance of 78% or less, on a support having an light transmittance of 30% or less, and an process for image formation using this electrophotographic image-receiving sheet.

Abstract: Provided is an image forming apparatus, in which liable to produce remaining curl, highly effective curl correction is performed. The image forming apparatus includes: a roll receiving portion for receiving a continuous recording sheet wound into a roll shape; a sheet transporting portion for transporting the continuous recording sheet from the roll receiving portion; a cutting portion for cutting the continuous recording sheet sent out into a desired size; an image forming portion for forming a toner image on the recording sheet (which has been cut); a fixing portion for fixing the toner image to the recording sheet by heating the recording sheet on which the toner image is formed; a cooling portion for cooling the recording sheet to which the toner image has been fixed; and a curl correcting portion for correcting a curl of the recording sheet when the recording sheet is cooled.

Abstract: The present invention aims to provide a recording material support having superior excellent surface smoothness and water resistance compared to the related art, to a process for efficiently manufacturing this recording material support, to a recording material which can form an image having excellent quality and gloss using this recording material support, and to process for image formation using this recording material. For this purpose, the recording material support comprising at least raw paper satisfies at least one condition selected from the Cobb size (30 seconds) of the surface on the side provided with the image-forming layer of the support, Oken type smoothness, Stökigt sizing degree, central square average roughness (SRa) and variation amount (?SRa) of SRa.

Abstract: An electrophotographic image-receiving sheet which includes a support, a toner-receiving layer which contains thermoplastic resin. The fixing belt electrophotographic sheet has an optimized separation force at a surface of the electrophotographic image-receiving sheet from the toner-receiving layer. Having a highly improved long-run properties, the fixing belt electrophotographic sheet realizes a stable paper feed without offset, and provides a good quality image with rich photographic features.

Abstract: An object is to provide an image forming process, an image forming apparatus, and a color electrophotographic print that can provide a color electrophotograph that has a sufficient density in its dark area, has gloss, has a high glossiness over the entire densities covering bright areas (a white area and a highlight area), areas at intermediate densities, and dark areas (a black area and a shadow area) and can achieve high image quality equivalent to silver halide photographs. An image forming process produces an electrophotographic print which has a black density of 2.0 or more, a black color satisfying the following condition in the CIE 1976 (L*a*b*) color space: (a*)2+(b*)2?9, and a 20-degree minimum glossiness of 60 or more.

Abstract: Provided is an image forming apparatus, in which liable to produce remaining curl, highly effective curl correction is performed. The image forming apparatus includes: a roll receiving portion for receiving a continuous recording sheet wound into a roll shape; a sheet transporting portion for transporting the continuous recording sheet from the roll receiving portion; a cutting portion for cutting the continuous recording sheet sent out into a desired size; an image forming portion for forming a toner image on the recording sheet (which has been cut); a fixing portion for fixing the toner image to the recording sheet by heating the recording sheet on which the toner image is formed; a cooling portion for cooling the recording sheet to which the toner image has been fixed; and a curl correcting portion for correcting a curl of the recording sheet when the recording sheet is cooled.

Abstract: The object of the present invention is to provide an image-receiving sheet for the electrophotography which is excellent in adhesion resistance and resistance to crazing, and can form an image having a high image quality; and also an image-forming process using the image-receiving sheet for the electrophotography. For this object, the present invention provides an image-receiving sheet for the electrophotography comprising a support and a toner image-receiving layer disposed on the support, wherein the toner image-receiving layer comprises an aqueous polymer dispersion and water-dispersible rosins.

Abstract: An electrophotographic image receiving sheet with a toner image receiving layer containing a release agent and formed on a support sheet for use in a fixing belt type electrophotography is disclosed. The toner image receiving layer satisfies the following condition: ?sp0??sp1?2.5[mJ/m2] where ?sp0 and ?sp1 are values of a polar component of surface free energy of the image receiving layer before heating the image receiving sheet and after having heated the image receiving sheet to 120° C. and then cooled it to 25° C., respectively.

Abstract: Provided is an image forming apparatus, in which liable to produce remaining curl, highly effective curl correction is performed. The image forming apparatus includes: a roll receiving portion for receiving a continuous recording sheet wound into a roll shape; a sheet transporting portion for transporting the continuous recording sheet from the roll receiving portion; a cutting portion for cutting the continuous recording sheet sent out into a desired size; an image forming portion for forming a toner image on the recording sheet (which has been cut); a fixing portion for fixing the toner image to the recording sheet by heating the recording sheet on which the toner image is formed; a cooling portion for cooling the recording sheet to which the toner image has been fixed; and a curl correcting portion for correcting a curl of the recording sheet when the recording sheet is cooled.

Abstract: A POF includes an inner core having a refractive index distribution and an outer core provided on periphery of the inner core. A ratio Ra/Rb of an outer diameter of the inner core to the outer core satisfies 0.67?(Ra/Rb)?0.87 such that an outgoing beam from an end of the POF may have a parallel area of at least 200 ?m. Thus a space between the end for exiting the exit light and a light receiving device can be kept at least 200 mm without members or devices for collimating.

Abstract: The thermosensitive-recording process according to the present invention comprises recording an image on a thermosensitive-recording material through heating the thermosensitive-recording material that comprises a thermosensitive-recording layer on a support, and smoothening the thermosensitive-recording material, wherein said smoothening the thermosensitive-recording material is carried out during at least a period selected from (i) before recording the image, (ii) while recording the image, and (iii) after recording the image, and the heating temperature at smoothening the thermosensitive-recording material is above 70° C. and below 170° C.

Abstract: An image receiving material for electrophotography having, on a support, one or more structural layers including a toner image receiving layer, wherein at least one layer of said structural layers comprises plasticizer, and wherein a flow starting temperature of said toner image receiving layer is at 30° C. or higher that is, as well, lower than a temperature of a flow starting temperature of toner resin+10° C., is disclosed. Using the image receiving material can provide formation of toner reflected images similar to photographs with respect to smoothness (glossiness) and also provide no image degradation by image roughness or removal.

Abstract: In an optical signal transmission system which can perform high-speed optical transmission not lower than 1 Gbps, VCSEL has light-emission points. A core diameter of an optical fiber GI-POF is set to not lower than 200 ?m, and the light-emission points of VCSEL are arranged inside an outer periphery at an end face of GI-POF. A polymerization composition material constituting the core of GI-POF is made of a compound containing deuterated poly methacrylic ester. A wavelength of the light beam of VCSEL is set to the range of 770 nm to 810 nm.

Abstract: The image forming process according to the present invention comprises forming a toner image on an electrophotographic image receiving sheet, wherein the electrophotographic image receiving sheet comprises a support and a toner image receiving layer, the toner image receiving layer comprises a thermoplastic resin, and the toner image receiving layer is formed on at least one surface of the support, and wherein in the electrophotographic image receiving sheet, a peripheral margin exists on which the toner image is not formed, and the width of the peripheral margin is 1.2 mm to 13 mm.

Abstract: Image-receiving sheets for electrophotography are provided, which are excellent in anti-curling property and anti-cracking property of the image surface thereof and which can be easily produced. The image-receiving sheets include a base paper and a toner image-receiving layer made of a thermoplastic resin on at least one surface of the base paper. The toner image-receiving layer contains less than 40% by mass of a pigment, based on the thermoplastic resin. The thermoplastic resin infiltrates into a depth of 1 to 50% of the thickness of the base paper from the surface of the base paper at the toner image-receiving layer side.

Abstract: An image-receiving sheet for electrophotography is provided, which has an excellent gloss and which can be easily produced. The image-receiving sheet includes a base paper and a toner image-receiving layer comprising a thermoplastic resin on at least one surface of the base paper. The toner image-receiving layer contains less than 40% by mass, based on the thermoplastic resin, of a pigment. The thermoplastic resin is infiltrated to a depth of 0.01% to less than 1% of the thickness of the base paper from the surface of the base paper at the image-receiving layer side.

Abstract: Provided is an image forming apparatus, in which liable to produce remaining curl, highly effective curl correction is performed.

Abstract: An object is to provide an image forming process, an image forming apparatus, and a color electrophotographic print that can provide a color electrophotograph that has a sufficient density in its dark area, has gloss, has a high glossiness over the entire densities covering bright areas (a white area and a highlight area), areas at intermediate densities, and dark areas (a black area and a shadow area) and can achieve high image quality equivalent to silver halide photographs. An image forming process produces an electrophotographic print which has a black density of 2.0 or more, a black color satisfying the following condition in the CIE 1976 (L*a*b*) color space: (a*)2+(b*)2≦9, and a 20-degree minimum glossiness of 60 or more.

Abstract: Provided are processes for cleaning which ensure easy cleaning of at least one of a fixing roller and a fixing belt in an electrophotographic apparatus, and image forming apparatuses which employ such processes. To achieve this, an electrophotographic image-receiving sheet which has a support and a toner image-receiving layer containing a thermoplastic resin on the support, and the length of which in the direction of feeding (L1) is longer than at least one of the perimeter of the fixing roller (L2) and the perimeter of the fixing belt (L3), both of which are the heating and pressuring means of the image forming apparatus, is used as a cleaning sheet.

Abstract: To provide a digital printing system that can satisfactorily reproduce yellow, magenta, and cyan colors, respectively, and can excellently reproduce specific skin tones and have significantly improved sensory image quality, a digital printing system reproduces a yellow (Y) color having a* and b* values of −15 to 0 and +71 to +85, respectively, in the CIE 1976 (L*a*b*) color space at a blue density of 1.0; a magenta (M) color having a* and b* values of +50 to +65 and −30 to 0, respectively, at a green density of 1.0; and a cyan (C) color having a* and b* values of −45 to −15 and −40 to −5, respectively, at a red density of 1.0 and produces a print having L*, a*, and b* values of +58 to +78, +20 to +30, and +25 to +32, respectively, from digital image data with RGB values of 239, 167, and 127, respectively.