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公开(公告)号：US09483015B2
公开(公告)日：2016-11-01
申请号：US14036397
申请日：2013-09-25
发明人： Yasuo Tamaru , Takuya Yamaguchi
IPC分类号： B41J2/385 , G03G13/04 , G03G21/16 , G03G15/04 , B41J2/41 , G03G15/00 , G01D15/28 , G01D15/06
CPC分类号： G03G21/1661 , G03G15/04054
摘要： An image forming apparatus includes a photoreceptor which is rotatable with respect to a body frame, an exposing member which is movable relative to the body frame, a spacing member which is provided between the exposing member and the photoreceptor to maintain a distance between the photoreceptor and the exposing member, a positioning member which makes a contact with the exposing member to position the exposing member in a direction of rotation of the photoreceptor, and a pressing member which is provided to the body frame to press the exposing member toward the photoreceptor and the positioning member. Accordingly, it is possible to position the exposing member accurately with respect to the photoreceptor, in any of the light-axis direction and the rotational direction of the photoreceptor.
摘要翻译： 图像形成装置包括可相对于主体框架旋转的感光体，相对于主体框架可移动的曝光构件，设置在曝光构件和感光体之间以保持感光体和感光体之间的距离的间隔构件 所述曝光构件，与所述曝光构件接触以使所述曝光构件沿所述感光体的旋转方向定位的定位构件，以及设置到所述主体框架以将所述曝光构件朝向所述感光体按压的按压构件， 定位件 因此，可以在感光体的光轴方向和旋转方向中的任意一个中使曝光构件相对于感光体准确地定位。
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公开(公告)号：US09091956B2
公开(公告)日：2015-07-28
申请号：US14469393
申请日：2014-08-26
IPC分类号： G03G15/04 , G03G15/00 , G03G13/04 , G03G15/043
CPC分类号： G03G15/043 , G03G13/04 , G03G15/5025
摘要： An image forming apparatus includes; an exposure unit configured to perform, based on the image data, first exposure for a photosensitive member and second exposure for the photosensitive member exposed by the first exposure; a determination unit configured to determine a type of the image to be formed based on image data; and a control unit configured to control the exposure unit such that a difference in an exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a character is larger than the difference in the exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a picture.
摘要翻译： 图像形成装置包括： 曝光单元，被配置为基于图像数据执行感光构件的第一曝光和通过第一曝光曝光的感光构件的第二曝光; 确定单元，被配置为基于图像数据确定要形成的图像的类型; 以及控制单元，被配置为控制所述曝光单元，使得当所述图像的类型是字符时，基于所述图像数据执行的所述第一曝光和所述第二曝光之间的曝光量的差异大于所述曝光量的差异 当图像的类型是图像时，基于图像数据执行第一曝光和第二曝光。
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公开(公告)号：US09030516B2
公开(公告)日：2015-05-12
申请号：US13166033
申请日：2011-06-22
IPC分类号： B41J2/385 , G03G13/04 , G03G15/043 , H04N1/401 , H04N1/405 , H04N1/407 , G06K15/02 , G06K15/12
CPC分类号： G03G15/043 , G06K15/1209 , G06K15/1247 , G06K15/1868 , G06K15/1881 , H04N1/4015 , H04N1/405 , H04N1/407
摘要： Compensation is performed for nonuniformity in a printer. The printer has a photoreceptor and a print head with a plurality of different light sources, each light source capable of producing a plurality of different levels of light. A plurality of stored gain control signals for each light source are related to the light output of that light source. Print job data includes screened pixel levels and a halftone screen specification. The stored gain control signals are adjusted based on the halftone screen specification. The screened pixel levels are modified using the adjusted gain control signals to provide engine pixel levels. Those levels are provided to corresponding light sources to expose the photoreceptor in respective pixel areas with light corresponding to the compensated pixel levels.
摘要翻译： 对打印机的不均匀性进行补偿。 打印机具有感光体和具有多个不同光源的打印头，每个光源能够产生多个不同级别的光。 用于每个光源的多个存储的增益控制信号与该光源的光输出有关。 打印作业数据包括屏蔽像素级别和半色调屏幕规格。 存储的增益控制信号根据半色调屏幕规格进行调整。 使用调整后的增益控制信号修改屏蔽像素级，以提供引擎像素级。 这些电平被提供给相应的光源，以使与相应于补偿的像素电平相对应的光曝光在各个像素区域中的感光体。
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公开(公告)号：US09013527B2
公开(公告)日：2015-04-21
申请号：US14178971
申请日：2014-02-12
申请人： Fuji Xerox Co., Ltd.
发明人： Seiji Ohno
CPC分类号： G03G15/04054 , G02B27/0087
摘要： A light-emitting component includes: plural transfer thyristors each configured with a semiconductor layer stack laminating first to fourth semiconductor layers, and shifting to an ON state in order; plural coupling transistors each configured with the first to third semiconductor layers, provided to couple adjacent transfer thyristors, the first and the second semiconductor layers of the coupling transistor being continued to the first and the second semiconductor layers of the former transfer thyristor; plural first resistances, each provided between the third semiconductor layer of each transfer thyristor and a wiring for power supply; a second resistance having a resistance value smaller than a product of a resistance value of the first resistance and a ratio of a collector current of the coupling transistor to a cathode current of the transfer thyristor in the ON state; and plural light-emitting thyristors each configured with the semiconductor layer stack.
摘要翻译： 发光部件包括：多个传输晶闸管，每个转移晶闸管配置有层叠第一至第四半导体层的半导体层堆叠，并依次转换为导通状态; 多个耦合晶体管，每个配置有第一至第三半导体层，设置成耦合相邻的转移晶闸管，耦合晶体管的第一和第二半导体层延续到前一个转移晶闸管的第一和第二半导体层; 多个第一电阻，各自设置在每个转移晶闸管的第三半导体层和用于电源的布线之间; 电阻值小于第一电阻的电阻值与耦合晶体管的集电极电流与导通状态下的转移晶闸管的阴极电流的乘积的乘积的第二电阻; 以及分别配置有半导体层叠层的多个发光晶闸管。
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5.发明授权Image forming and processing apparatuses for requantizing quantized data using sigma-delta modulation and compensating for uneveness of exposure intensity 有权图像形成和处理装置，用于使用Σ-Δ调制重新量化量化数据并补偿曝光强度的不均匀性公开(公告)号：US08964257B2
公开(公告)日：2015-02-24
申请号：US13306222
申请日：2011-11-29
申请人： Shimpei Matsuo
发明人： Shimpei Matsuo
CPC分类号： G06K15/1868 , G06K15/1209 , G06K15/1247 , H04N1/40031 , H04N1/4015
摘要： An image forming apparatus of this invention, when an exposure unit performs exposure, applies, to image data quantized by a first number of bits, compensation data for compensating for unevenness of the exposure intensity occurring on a photosensitive member caused by a lens array used in the exposure unit. This compensation data is obtained by quantizing, by a second number of bits larger than the first number of bits, data corresponding to a change in measurement value obtained by measuring unevenness of exposure occurring on the photosensitive member from a reference value used in the measurement, and requantizing the quantized data by the first number of bits by using sigma-delta modulation.
摘要翻译： 本发明的图像形成装置，当曝光单元执行曝光时，对由第一位数量化的图像数据应用补偿数据，用于补偿由使用的透镜阵列引起的感光构件上产生的曝光强度的不均匀性 曝光单元。 该补偿数据通过以比第一比特数大的第二比特量化，通过从测量中使用的参考值测量在感光构件上发生的曝光不均匀而获得的测量值的变化， 以及通过使用Σ-Δ调制对量化数据重新量化第一比特数。
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公开(公告)号：US08929759B2
公开(公告)日：2015-01-06
申请号：US13889781
申请日：2013-05-08
IPC分类号： G03G15/00 , G03G13/04 , G03G15/043
CPC分类号： G03G13/04 , G03G15/043 , G03G15/5041 , G03G15/5054 , G03G15/55
摘要： An image forming apparatus includes: a density detection unit that detects densities of an image developed by a developing unit at a plurality of positions in a main-scanning direction; a processing unit that obtains at least one of an amplitude and a phase of a first periodical density change of the image, of which cycle is a rotation cycle of a photosensitive drum, at the plurality of positions in the main-scanning direction on the basis of an output signal of the density detection unit, and corrects a drive signal for the light source so as to suppress the first periodical density change of the image at each position in the main-scanning direction on the basis of the rotation cycle of the photosensitive drum and at least one of the amplitude and the phase.
摘要翻译： 图像形成装置包括：浓度检测单元，其检测由主扫描方向上的多个位置处的显影单元显影的图像的浓度; 处理单元，其基于在主扫描方向上的多个位置处获取图像的第一周期性密度变化的幅度和相位中的至少一个，哪个周期是感光鼓的旋转周期 并且校正用于光源的驱动信号，以便基于感光体的旋转周期来抑制主扫描方向上每个位置处的图像的第一周期性密度变化 鼓和振幅和相位中的至少一个。
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公开(公告)号：US08854408B2
公开(公告)日：2014-10-07
申请号：US13755977
申请日：2013-01-31
IPC分类号： B41J2/47 , B41J2/435 , G03G15/00 , G03G13/04 , G03G15/043
CPC分类号： G03G15/043 , G03G13/04 , G03G15/5025
摘要： An image forming apparatus includes; an exposure unit configured to perform, based on the image data, first exposure for a photosensitive member and second exposure for the photosensitive member exposed by the first exposure; a determination unit configured to determine a type of the image to be formed based on image data; and a control unit configured to control the exposure unit such that a difference in an exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a character is larger than the difference in the exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a picture.
摘要翻译： 图像形成装置包括： 曝光单元，被配置为基于图像数据执行感光构件的第一曝光和通过第一曝光曝光的感光构件的第二曝光; 确定单元，被配置为基于图像数据确定要形成的图像的类型; 以及控制单元，被配置为控制所述曝光单元，使得当所述图像的类型是字符时，基于所述图像数据执行的所述第一曝光和所述第二曝光之间的曝光量的差异大于所述曝光量的差异 当图像的类型是图像时，基于图像数据执行第一曝光和第二曝光。
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8.发明授权Image processing apparatus, method for controlling the same, and storage medium 有权图像处理装置，其控制方法和存储介质公开(公告)号：US08730007B2
公开(公告)日：2014-05-20
申请号：US12486677
申请日：2009-06-17
申请人： Ritsuko Otake
发明人： Ritsuko Otake
IPC分类号： G05B19/00 , G05B23/00 , G06K15/00 , G06F3/12 , G06K15/02 , H04N1/60 , H04N1/21 , G03G13/04 , B41J29/38 , G03G15/00
CPC分类号： G06F21/6209 , G06F21/608
摘要： A method for controlling an image processing apparatus configured to output image data includes accepting, from a user, selection about whether to permit inputting biometric information, and performing control such that outputting the image data is permitted in a case where the selection for permitting inputting the biometric information is made, and the outputting the image data is prohibited in a case where the selection for permitting inputting the biometric information is not made.
摘要翻译： 用于控制被配置为输出图像数据的图像处理装置的方法包括从用户接受关于是否允许输入生物信息的选择，并且执行控制，使得在允许输入图像数据的选择的情况下允许输出图像数据 进行生物体信息，并且在不进行用于允许输入生物体信息的选择的情况下，禁止输出图像数据。
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9.发明授权Image forming apparatus and image correction method for correcting scan-line position error with error diffusion 有权用误差扩散校正扫描线位置误差的图像形成装置和图像校正方法公开(公告)号：US08422079B2
公开(公告)日：2013-04-16
申请号：US12179133
申请日：2008-07-24
申请人： Yasuyuki Nakamura
发明人： Yasuyuki Nakamura
CPC分类号： H04N1/0473 , G03G15/0194 , G03G2215/0129 , G03G2215/0161 , H04N1/1135 , H04N2201/04787 , H04N2201/04793
摘要： It is determined whether the pixel of interest in image data to be processed belongs to area 1 not close to a scan line changing point where a scan line changing process is done (S101). If the pixel of interest belongs to area 1, an error diffusion process is performed using an error diffusion matrix for area 1 (S102). If the pixel of interest belongs to area 2 close to the scan line changing point, the error diffusion process is performing using an error diffusion matrix for downward scan line changing for area 2 when the scan line changing process is changing to a lower line, or an error diffusion matrix for upward scan line changing for area 2 when the scan line changing process is changing to an upper line.
摘要翻译： 确定要处理的图像数据中的感兴趣像素是否属于不靠近扫描线改变处理的扫描线改变点的区域1（S101）。 如果感兴趣像素属于区域1，则使用区域1的误差扩散矩阵执行误差扩散处理（S102）。 如果感兴趣像素属于靠近扫描线变化点的区域2，则当扫描线改变处理变为下一行时，误差扩散处理使用用于区域2的向下扫描线改变的误差扩散矩阵执行，或 当扫描线改变处理变为上一行时，用于区域2的向上扫描线改变的误差扩散矩阵。
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公开(公告)号：US08243110B2
公开(公告)日：2012-08-14
申请号：US12270479
申请日：2008-11-13
申请人： Yasunori Saito , Tsutomu Ishii , Shigehiko Sasaki , Masahiro Sato , Akira Ichiboshi , Kyotaro Tomoda
发明人： Yasunori Saito , Tsutomu Ishii , Shigehiko Sasaki , Masahiro Sato , Akira Ichiboshi , Kyotaro Tomoda
IPC分类号： G03G13/04
CPC分类号： G11B31/006 , G02F1/1334 , G02F1/1354 , G02F1/13718
摘要： An optical writing device performs writing on an exposure region of a light writing display medium. The optical writing device includes an accommodation section, a light irradiation member, a voltage application member, a medium conveyance member and control means. The control means performs control for: applying voltage with the voltage application member to a first medium; the light irradiation member irradiating the light bearing image information and moving a first distance in the first direction over the first medium; the voltage application member applying voltage to a second medium; the light irradiation member irradiating the light for image erasure onto the second medium and moving a second distance in the second direction over the second medium; and, simultaneously the movement of the light irradiation member in the second direction, the medium conveyance member conveying the first medium.
摘要翻译： 光写入装置在光写入显示介质的曝光区域上进行写入。 光学写入装置包括容纳部分，光照射部件，电压施加部件，介质传送部件和控制装置。 控制装置执行以下步骤的控制：用电压施加构件施加电压到第一介质; 所述光照射部件照射所述承载图像信息，并且在所述第一介质上沿所述第一方向移动第一距离; 电压施加构件向第二介质施加电压; 所述光照射部件将用于图像擦除的光照射到所述第二介质上，并且在所述第二介质上沿所述第二方向移动第二距离; 并且同时沿着第二方向移动光照射部件，传送第一介质的介质输送部件。
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