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    • 2. 发明授权
    • Image forming apparatus with a toner contamination detecting device
    • 具有调色剂污染检测装置的图像形成装置
    • US08503901B2
    • 2013-08-06
    • US12877548
    • 2010-09-08
    • Hiroshi AkitaSeiko ItagakiNatsuko MinegishiHiroyuki Saito
    • Hiroshi AkitaSeiko ItagakiNatsuko MinegishiHiroyuki Saito
    • G03G21/00
    • G03G15/169
    • An image forming apparatus includes: an image carrier; a latent image forming device; a developing device; an electrode which faces to the image carrier; an electric power source, a toner contamination detecting device for detecting toner contamination onto the electrode; an electrode cleaning device for cleaning the electrode; and a controlling section. The control section controls the electric power source to apply at least an alternating current voltage to the electrode so that toner image is rearranged by reciprocally moving toner of the toner image between the image carrier and the electrode control section and allows the electrode cleaning device to clean the electrode when the toner contamination detecting device detects toner contamination on the electrode, and performs the toner rearrangement by the electrode from which the toner contamination is removed.
    • 图像形成装置包括:图像载体; 潜像形成装置; 显影装置; 面向图像载体的电极; 电源,用于检测调色剂污染到电极上的调色剂污染检测装置; 用于清洁电极的电极清洁装置; 和控制部分。 控制部分控制电源至少向电极施加交流电压,使得通过在图像载体和电极控制部分之间往复移动调色剂图像的调色剂来重新排列调色剂图像,并允许电极清洁装置清洁 当调色剂污染检测装置检测到电极上的调色剂污染并且通过去除调色剂污染的电极执行调色剂重排时,电极。
    • 3. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20110058843A1
    • 2011-03-10
    • US12877548
    • 2010-09-08
    • Hiroshi AkitaSeiko ItagakiNatsuko MinegishiHiroyuki Saito
    • Hiroshi AkitaSeiko ItagakiNatsuko MinegishiHiroyuki Saito
    • G03G21/00
    • G03G15/169
    • An image forming apparatus includes: an image carrier; a latent image forming device; a developing device; an electrode which faces to the image carrier; an electric power source, a toner contamination detecting device for detecting toner contamination onto the electrode; an electrode cleaning device for cleaning the electrode; and a controlling section, wherein the control section controls the electric power source to apply at least an alternating current voltage to the electrode so that toner image is rearranged by reciprocally moving toner of the toner image between the image carrier and the electrode control section and allows the electrode cleaning device to clean the electrode when the toner contamination detecting device detects toner contamination on the electrode, and performs the toner rearrangement by the electrode from which the toner contamination is removed.
    • 图像形成装置包括:图像载体; 潜像形成装置; 显影装置; 面向图像载体的电极; 电源,用于检测调色剂污染到电极上的调色剂污染检测装置; 用于清洁电极的电极清洁装置; 以及控制部分,其中所述控制部分控制所述电源以向所述电极施加至少一个交流电压,使得通过在所述图像载体和所述电极控制部分之间往复移动调色剂图像的调色剂来重新排列调色剂图像,并允许 所述电极清洁装置在所述调色剂污染检测装置检测到所述电极上的调色剂污染物时清洁所述电极,并且通过除去所述调色剂污染物的电极进行所述调色剂重排。
    • 4. 发明授权
    • Image forming apparatus with two developing rollers, and an electrode therebetween
    • 具有两个显影辊的图像形成装置及其间的电极
    • US08244164B2
    • 2012-08-14
    • US12574725
    • 2009-10-07
    • Hiroyuki SaitoSeiko ItagakiHiroshi AkitaNatsuko Minegishi
    • Hiroyuki SaitoSeiko ItagakiHiroshi AkitaNatsuko Minegishi
    • G03G15/08
    • G03G15/0907G03G2215/0634
    • An image forming apparatus includes: a supplying section for supplying developer; a first developing roller including plural magnetic poles and a first sleeve arranged rotatable to the first developing roller; a second developing roller including plural magnetic poles and a second sleeve arranged rotatable to the second developing roller, the second developing roller arranged adjacent to the first developing roller and parallel to the same; an electrode arranged between the first and second developing rollers; and a voltage applying unit for applying bias voltages each having different electric potential corresponding to the first developing roller, the second developing roller and the electrode, wherein an absolute value of the bias voltage to be applied to the electrode is larger than that of the bias voltage to be applied to the first developing roller and smaller than that of the bias voltage to be applied to the second developing roller.
    • 一种图像形成装置包括:用于供应显影剂的供应部分; 包括多个磁极的第一显影辊和可旋转到第一显影辊的第一套筒; 包括多个磁极的第二显影辊和可旋转地连接到第二显影辊的第二套筒,第二显影辊邻近第一显影辊布置并且平行于第二显影辊; 布置在第一和第二显影辊之间的电极; 以及电压施加单元,用于施加各自具有与第一显影辊,第二显影辊和电极对应的不同电位的偏置电压,其中施加到电极的偏置电压的绝对值大于偏置电压的绝对值 施加到第一显影辊上的电压小于要施加到第二显影辊的偏置电压的电压。
    • 5. 发明授权
    • Image forming apparatus with toner forced discharge mode
    • 具有调色剂强制放电模式的图像形成装置
    • US07356289B2
    • 2008-04-08
    • US11338919
    • 2006-01-25
    • Seiko ItagakiHiroshi AkitaIsamu Miura
    • Seiko ItagakiHiroshi AkitaIsamu Miura
    • G03G15/08G03G15/06
    • G03G15/065
    • An image forming apparatus includes: a developing device which applies a developing bias voltage obtained by superimposing an AC bias voltage onto a DC bias voltage to a photoreceptor, and develops a latent image on the photoreceptor with a developer to form a toner image. The apparatus has a toner forced discharge mode for forming a toner image for forced discharge in a first image formation area provided in a non-image formation area other than a second image formation area on the photoreceptor to forcibly discharge a toner from the developing device. When the mode is selected, an AC bias voltage at a frequency lower than that in the second image formation area is applied to the first image formation area to develop a latent image for forced discharge, to form a toner image, and a toner of the toner image is collected by a cleaning device.
    • 图像形成装置包括:显影装置,其将通过将AC偏置电压叠加到DC偏置电压获得的显影偏压施加到感光体,并用显影剂在感光体上显影潜像以形成调色剂图像。 该设备具有调色剂强制放电模式,用于在设置在除感光体上的第二图像形成区域之外的非图像形成区域中的第一图像形成区域中形成用于强制放电的调色剂图像,以强制地从显影装置排出调色剂。 当选择模式时,将低于第二图像形成区域中的频率的AC偏置电压施加到第一图像形成区域以显影用于强制放电的潜像,以形成调色剂图像,并且调色剂 调色剂图像由清洁装置收集。
    • 7. 发明授权
    • Carbon material
    • 碳材料
    • US06770227B2
    • 2004-08-03
    • US09846201
    • 2001-05-02
    • Hiroshi AkitaHiroto Kobayashi
    • Hiroshi AkitaHiroto Kobayashi
    • C01B3102
    • C04B35/524C01B32/20D01F9/24
    • A carbon material which is an isotropic bulk material in which a rigid aromatic polymer or a reinforcing polymer is dispersed in the matrix polymer finely, homogeneously and sufficiently, and which is excellent in physical characteristics, particularly in conductivity, by mixing a matrix polymer with an aromatic heterocyclic copolymer precursor containing functional groups having heterocycle forming ability in which at least one of said functional groups is substituted by another functional group, in an organic solvent to form a mixed solution, removing the solvent therefrom to form a coagulum, thereby preparing a three-dimensional mesh type molecular composite material, and then burning the resulting composite material.
    • 作为各向同性体材料的碳材料,其中刚性芳族聚合物或增强聚合物被细分,均匀且充分地分散在基质聚合物中,并且通过将基质聚合物与 含有具有杂环形成能力的官能团的芳族杂环共聚物前体,其中至少一个所述官能团被其它官能团取代,在有机溶剂中形成混合溶液,从中除去溶剂形成凝结物,从而制备三 三维网状分子复合材料,然后燃烧所得复合材料。
    • 8. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US06577843B2
    • 2003-06-10
    • US10067060
    • 2002-02-04
    • Hiroshi AkitaTakahiro TsuchiyaKyoichi MizunoKunihiro Kawachi
    • Hiroshi AkitaTakahiro TsuchiyaKyoichi MizunoKunihiro Kawachi
    • G03G1500
    • G03G15/5008G03G15/2064G03G15/6564G03G15/6594G03G2215/00468G03G2215/2045G03G2215/2061
    • An image forming apparatus includes, a rotatable image carrier, a writing exposure device to write the image and form a latent image in the rotatable image carrier, a developing device to form a toner image, a registration roller to convey a transfer sheet to an image transfer area where the toner image is transferred from the image carrier onto the transfer sheet, and a fixing roller to heat and fix the toner image, wherein when the length of a transfer sheet is longer than the length of the transfer sheet path between the registration roller and the fixing roller, according to the size of the transfer sheet, the controller changes and controls the relative rotating speed of the registration roller to a rotating speed of the fixing roller, and one of a rotating speed of the rotatable image carrier and a writing speed of the image.
    • 图像形成装置包括:可旋转图像载体;书写曝光装置,用于将图像写入并形成潜像在可旋转图像载体中;显影装置,用于形成调色剂图像;定位辊,用于将转印纸传送到图像 转印区域,其中调色剂图像从图像载体转印到转印片材上;以及定影辊,用于加热和固定调色剂图像,其中当转印片材的长度长于注册之间的转印纸路径的长度时 辊和定影辊,根据转印纸的尺寸,控制器将定位辊的相对旋转速度改变并控制到定影辊的旋转速度,并且可旋转图像载体的旋转速度和 书写速度的图像。
    • 9. 发明授权
    • Developing device, process unit, and image forming apparatus
    • 显影装置,处理单元和成像装置
    • US07801470B2
    • 2010-09-21
    • US12046177
    • 2008-03-11
    • Natsuko MinegishiSeiko ItagakiHiroshi Akita
    • Natsuko MinegishiSeiko ItagakiHiroshi Akita
    • G03G15/08
    • G03G15/095G03G15/0818G03G2215/0634
    • A developing apparatus, comprises an endless belt shaped donor member; a developer supporting member to carry developer including toner and magnetic carrier and to form a toner layer on the donor member; a first supporting member arranged in the inside of the donor member with a predetermined gap against the developer supporting member and to strain the donor member; a second supporting member arranged in the inside of the donor member with a predetermined gap against the developer supporting member and to strain the donor member; a toner supply bias applying section to apply onto the first supporting member a toner supply bias for supplying toner from the developer supporting member to the donor member; and a toner recovery bias applying section to apply onto the second supporting member a toner recovery bias for recovering toner from the donor member to the developer supporting member.
    • 一种显影装置,包括环形带状供体件; 显影剂支撑构件,用于承载包括调色剂和磁性载体的显影剂,并在所述供体构件上形成调色剂层; 第一支撑构件,其在所述施主构件的内部以与所述显影剂支撑构件相对的预定间隙布置并施加所述施主构件; 第二支撑构件,其在所述供体构件的内部以与所述显影剂支撑构件相对的预定间隙布置并施加所述施主构件; 调色剂供应偏压施加部分,用于向第一支撑构件施加用于将调色剂从显影剂支撑构件供应到供体构件的调色剂供应偏压; 以及调色剂回收偏压施加部分,用于向第二支撑构件施加用于将调色剂从供体构件回收到显影剂支撑构件的调色剂回收偏压。
    • 10. 发明授权
    • Sulfonated polyphosphazene derivative and method for producing the same
    • 磺化聚磷腈衍生物及其制备方法
    • US07294685B2
    • 2007-11-13
    • US10893187
    • 2004-07-16
    • Hiroshi Akita
    • Hiroshi Akita
    • C08J5/20C08G79/02
    • C08L81/02C08G79/025C08G2650/02
    • A polyphosphazene derivative and an aromatic ring compound are bonded to one another to obtain an intermediate product. Subsequently, anhydrous sulfuric acid is added in such an amount that the molar ratio is 2 to 8 with respect to a repeating unit of the intermediate product. Further, SO3 and the intermediate product are reacted with each other to sulfonate the intermediate product. The sulfonation is performed under a condition in which the temperature range is −20 to 0° C. and the total time is 5 to 30 hours. Accordingly, a sulfonated polyphosphazene derivative is obtained, in which the number average molecular weight is not less than 25,000 and the ion exchange capacity exceeds 3.0 mmol/g.
    • 聚磷腈衍生物和芳环化合物彼此键合以获得中间产物。 随后,相对于中间产物的重复单元,加入无水硫酸的摩尔比为2-8。 此外,SO 3 3和中间产物彼此反应以使中间产物磺化。 磺化在温度范围为-20〜0℃,总时间为5〜30小时的条件下进行。 因此,得到磺化聚磷腈衍生物,其数均分子量不小于25,000,离子交换容量超过3.0mmol / g。