摘要:
In a method for forming a color image by using a contact type nonmagnetic one-component developing device, a flat sheet-like blade made of a metal flexible member and having a distal end thereof chamfered is used inside the developing device in combination with a toner having a glass transition point of 55 to 70° C. and a weight average particle diameter of 6.0 to 10.0 &mgr;m, and containing up to 20 number % of particles having particle diameters of 5 &mgr;m or below, as a developer. The developing device is simple in construction, can provide high image quality and can, moreover, provide a highly reliable image formation method.
摘要:
In a method for forming a multicolored toner image in accordance with an electrophotographic process, the addition amount of external additives to a non-added toner is 1.5 to 10.0 parts by weight per 100 parts by weight of the non-added toner in each developing step, the aggregation degree of the toner is within the range of 30 to 80%, and the change ratio of the aggregation degree satisfies the relation: 0.8≦(initial aggregation degree/aggregation degree after no-load revolution of developing portion for 20 hours)≦1.2. According to this method, it becomes possible to form a high-quality color image while a toner always keeps a stable degree of aggregation and a charge amount.
摘要:
An image formation process which forms a toner image by the nonmagnetic one-component developing system by bringing an electrically conducting brush impressed with a voltage into contact with a photosensitive material to effect the uniform charging, and forming an electrostatic latent image on the photosensitive material by the exposure to the image-bearing light, wherein the toner that is used as a circularity of from 0.92 to 0.98. The nonmagnetic one-component developing system minimizes irregular electric charging that stems from the use of the electrically conducting brush. This action is obtained even in full-color developing system which effects development many times.
摘要:
An image formation method for forming an image is proposed, which uses an image formation apparatus capable of performing (1) multi-color image formation and printing by superimposing toner images with different colors by use of a plurality of color toners with different colors, including at least a black toner, and (2) monochrome image formation and printing, using only a black toner, with a maximum transferable amount of each color toner onto the image being in a range of 4×10−3 kg/m2 to 8×10−3 kg/m2, wherein an image glossiness (GKC) obtained by the black toner in the maximum transferable amount thereof at the multi-color image printing, an image glossiness (GCC) obtained by each of the color toners other than the black toner in the maximum transferable amount thereof at the multi-color image printing, and an image glossiness (GKM) obtained by the black toner in the maximum transferable amount thereof at the monochrome image printing satisfy a particular relationship as described in the specification. In addition, the above toners and a printed matter prepared by this image formation method are proposed.
摘要翻译:提出了一种用于形成图像的图像形成方法,其使用能够通过使用具有不同颜色的多个彩色调色剂叠加不同颜色的调色剂图像来执行(1)多色图像形成和打印的图像形成装置,包括 至少黑色调色剂,以及(2)仅使用黑色调色剂的单色图像形成和印刷,每个彩色调色剂的最大可转印量在图像上为4×10 -3 kg / m 2 至8×10 -3 kg / m 2,其中通过黑色调色剂在多色图像印刷中的最大可转移量获得的图像光泽度(GKC),通过各色获得的图像光泽度(GCC) 在多色图像打印下,其最大可转印量的黑色调色剂以外的彩色调色剂和在单色图像印刷中其最大可转印量中的黑色调色剂获得的图像光泽度(GKM)满足特定关系作为desc 在规范中加盖。 另外,提出了通过该图像形成方法制备的上述调色剂和印刷物。
摘要:
An image formation method for forming an image is proposed, which uses an image formation apparatus capable of performing (1) multi-color image formation and printing by superimposing toner images with different colors by use of a plurality of color toners with different colors, including at least a black toner, and (2) monochrome image formation and printing, using only a black toner, with a maximum transferable amount of each color toner onto the image being in a range of 4×10−3 kg/m2 to 8×10−3 kg/m2, wherein an image glossiness (GKC) obtained by the black toner in the maximum transferable amount thereof at the multi-color image printing, an image glossiness (GCC) obtained by each of the color toners other than the black toner in the maximum transferable amount thereof at the multi-color image printing, and an image glossiness (GKM) obtained by the black toner in the maximum transferable amount thereof at the monochrome image printing satisfy a particular relationship as described in the specification. In addition, the above toners and a printed matter prepared by this image formation method are proposed.
摘要翻译:提出了一种用于形成图像的图像形成方法,其使用能够通过使用具有不同颜色的多个彩色调色剂叠加不同颜色的调色剂图像来执行(1)多色图像形成和打印的图像形成装置,包括 至少一个黑色调色剂,以及(2)仅使用黑色调色剂的单色图像形成和印刷,每个彩色调色剂的最大可转印量在图像上为4×10 -3 kg / m 2至8×10 -3 kg / m 2,其中通过黑色调色剂在多色图像印刷中的最大可转移量获得的图像光泽度(GKC),除黑色调色剂之外的每种颜色调色剂获得的图像光泽度(GCC)最大 在多色图像打印下的可转印量,以及在单色图像打印下通过黑色调色剂获得的最大可转移量获得的图像光泽度(GKM)满足特定关系,如 规格。 另外,提出了通过该图像形成方法制备的上述调色剂和印刷物。
摘要:
A toner including a binder resin; a colorant; and an external additive, wherein the external additive includes a particulate inorganic material, and a silicone oil, wherein the silicone oil is present on the particulate inorganic material in an amount of Ws by weight and present as a free silicone oil in an amount of Wfs by weight, and a free silicone degree defined as a ratio Wfs/Ws is from 10 to 70%.
摘要:
A toner including a core particle, an inner shell layer covering the core, and an outer shell layer covering the inner shell layer is provided. The core particle includes a resin P. The inner shell layer includes fine particles of a resin A. The outer shell layer includes fine particles of a resin B. The toner satisfies the following formulae (1) to (3): 4.5≦T½(P)−Tfb(P)≦14 (1) 20≦T½(A)−Tfb(A)≦40 (2) 23.5≦T½(B)−Tfb(B)≦40 (3) wherein T½(P), T½(A), and T½(B) represent ½ method temperatures of the resins P, A, and B, respectively, and Tfb(P), Tfb(A), and Tfb(B) represent flow beginning temperatures of the resins P, A, and B, respectively, and wherein the ½ method temperatures and the flow beginning temperatures are measured by a flowtester.
摘要翻译:提供了包括芯颗粒,覆盖芯的内壳层和覆盖内壳层的外壳层的调色剂。 核心颗粒包括树脂P.内壳层包括树脂A的细颗粒。外壳层包括树脂B的细颗粒。调色剂满足下式(1)至(3):4.5@T 1/2( P)-Tfb(P)@ 14(1)20 @ T 1/2(A)-Tfb(A)@ 40(2)23.5@T½(B)-Tfb(B)@ 40(3) T 1/2(A)和T 1/2(B)分别表示树脂P,A和B的1/2方法温度,Tfb(P),Tfb(A)和Tfb(B)表示树脂P的流动开始温度 ,A和B,并且其中1/2方法温度和流动开始温度由流动器测量。
摘要:
A toner including a core particle, an inner shell layer covering the core, and an outer shell layer covering the inner shell layer is provided. The core particle includes a resin P. The inner shell layer includes fine particles of a resin A. The outer shell layer includes fine particles of a resin B. The toner satisfies the following formulae (1) to (3): 4.5≦T½(P)−Tfb(P)≦14 (1) 20≦T½(A)−Tfb(A)≦40 (2) 23.5≦T½(B)−Tfb(B)≦40 (3) wherein T½(P), T½(A), and T½(B) represent ½ method temperatures of the resins P, A, and B, respectively, and Tfb(P), Tfb(A), and Tfb(B) represent flow beginning temperatures of the resins P, A, and B, respectively, and wherein the ½ method temperatures and the flow beginning temperatures are measured by a flowtester.
摘要翻译:提供了包括芯颗粒,覆盖芯的内壳层和覆盖内壳层的外壳层的调色剂。 核心颗粒包括树脂P.内壳层包括树脂A的细颗粒。外壳层包括树脂B的细颗粒。调色剂满足下式(1)至(3):4.5@T 1/2( P)-Tfb(P)@ 14(1)20 @ T 1/2(A)-Tfb(A)@ 40(2)23.5@T½(B)-Tfb(B)@ 40(3) T 1/2(A)和T 1/2(B)分别表示树脂P,A和B的1/2方法温度,Tfb(P),Tfb(A)和Tfb(B)表示树脂P的流动开始温度 ,A和B,并且其中1/2方法温度和流动开始温度由流动器测量。
摘要:
It is an object of the present invention to provide a toner that can sustain favorable transferability and cleaning ability for prolonged periods; prevent photoconductor filming; exhibit no variation in image nonuniformity or external additive immersion induced by developer agitation at the time of use; excels in stability with flowability and charge stability over prolonged periods. Therefore, provided is the toner of which the quantity of aggregate of residual external additives found on the sieve of 635-mesh and 452 cm2 of mesh area, after 0.2 g of the toner on the sieve is blasted with air at a blow pressure of 0.2 MPa from 160 mm above the sieve while being air-suctioned at a suction force of 5 mmHg, and then air-suctioned at a suction force of 20 mmHg, is 4,500 or less and 5 or more.
摘要:
It is an object of the present invention to provide a toner that can sustain favorable transferability and cleaning ability for prolonged periods; prevent photoconductor filming; exhibit no variation in image nonuniformity or external additive immersion induced by developer agitation at the time of use; excels in stability with flowability and charge stability over prolonged periods. Therefore, provided is the toner of which the quantity of aggregate of residual external additives found on the sieve of 635-mesh and 452 cm2 of mesh area, after 0.2 g of the toner on the sieve is blasted with air at a blow pressure of 0.2 MPa from 160 mm above the sieve while being air-suctioned at a suction force of 5 mmHg, and then air-suctioned at a suction force of 20 mmHg, is 4,500 or less and 5 or more.