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21. 发明授权

US07529006B2 Image processing method, image processing apparatus, storage medium, and program for calculating first and second graduation-correction characteristics, and for reducing hue variations of a secondary color 有权
标题翻译：图像处理方法，图像处理装置，存储介质和用于计算第一和第二刻度校正特性的程序，以及用于减少次级颜色的色调变化
公开(公告)号：US07529006B2
公开(公告)日：2009-05-05
申请号：US10742203
申请日：2003-12-18
申请人： Tomohisa Itagaki , Jiro Ishizuka , Nobuatsu Sasanuma , Nobuhiko Zaima
发明人： Tomohisa Itagaki , Jiro Ishizuka , Nobuatsu Sasanuma , Nobuhiko Zaima
IPC分类号： G03F3/08 , H04N1/60
CPC分类号： G03G15/5041 , G03G2215/00063 , G03G2215/0119
摘要： An image processing apparatus for forming an image using at least three color materials includes a first generation device for generating a plurality of patches of secondary colors composed of color materials of two different colors; a first measurement device for measuring the patches; a first correction characteristic calculation device for calculating gradation-correction characteristics corresponding to each of the two color materials; a second generation device for generating a group of patches in accordance with an image signal for the two different color materials and an image signal for color materials other than the two color materials by using an image signal corrected on the basis of the gradation-correction characteristics; a second measurement device for measuring patches generated by the second generation device; and a second correction characteristic calculation device for calculating gradation-correction characteristics of image signals for color materials other than the two different color materials.
摘要翻译：用于使用至少三种颜色材料形成图像的图像处理装置包括：第一生成装置，用于生成由两种不同颜色的彩色材料组成的多个辅助色块; 用于测量所述贴片的第一测量装置; 第一校正特性计算装置，用于计算与两种颜色材料中的每一种对应的灰度校正特性; 第二代装置，用于根据两种不同颜色材料的图像信号产生一组贴片，以及通过使用基于灰度级校正特性校正的图像信号和用于不同于两种颜色材料的彩色材料的图像信号 ; 用于测量由第二代装置产生的贴片的第二测量装置; 以及用于计算除了两种不同颜色材料之外的彩色材料的图像信号的灰度校正特性的第二校正特性计算装置。

22. 发明申请

US20050190386A1 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US20050190386A1
公开(公告)日：2005-09-01
申请号：US11016881
申请日：2004-12-21
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G03G15/00 , G03G15/01 , G03G21/00 , G03G21/14 , H04N1/04 , H04N1/29 , H04N1/40 , H04N1/407 , H04N1/60
CPC分类号： H04N1/4078
摘要： At power-on, an image forming apparatus is in a state after it is leftstanding for some time in many cases, so that an image characteristic is largely different from that when γLUT correction table is prepared by an immediately before correction and is close to that at the time of previous power-on. For this reason, image formation is judged whether it is first image formation after power-on or not (S21), and in the case of the first image formation, the γLUT correction table is replaced with an original γLUT correction table at the time of previous power-on (S22). In the case where the image formation is not the first image formation, the immediately before γLUT correction table obtained after power-on is used as it is. As a result, it becomes possible to stabilize a density or coloring of a first image after power-on while reducing a warm-up time immediately after power-on.
摘要翻译：在通电时，图像形成装置在许多情况下处于一段时间之后处于状态，使得图像特性与当通过紧接在之前的校正准备gammaLUT校正表时的图像特性大不相同，并且接近于在上一次上电时。为此，判断图像形成是否是上电后的第一次图像形成（S21），在第一图像形成的情况下，伽马值校正表被替换为原来的γLUT校正表（S 22）。在图像形成不是第一图像形成的情况下，直接使用在通电之后获得的紧接着的γLUT校正表。结果，能够在上电之后立即使加热时间减少，稳定上电后的第一图像的浓度或着色。

23. 发明授权

US08977143B2 Image forming apparatus which performs calibration for maintaining image quality 有权
标题翻译：执行用于保持图像质量的校准的图像形成装置
公开(公告)号：US08977143B2
公开(公告)日：2015-03-10
申请号：US13175064
申请日：2011-07-01
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G03G15/00 , H04N1/60
CPC分类号： H04N1/6033 , H04N1/6097
摘要： An image forming apparatus forms a pattern image on a first printing medium and creates a first image processing condition for adjusting a tone characteristic based on a first luminance value. When performing the calibration using a second printing medium different from the first printing medium, the apparatus corrects, based on a luminance value of a background region of the second printing medium, a second luminance value output in accordance with light reflected by the second printing medium, and creates the first image processing condition based on the corrected second luminance value.
摘要翻译：图像形成装置在第一打印介质上形成图案图像，并且基于第一亮度值创建用于调整色调特性的第一图像处理条件。当使用与第一打印介质不同的第二打印介质执行校准时，该设备基于第二打印介质的背景区域的亮度值来校正根据由第二打印介质反射的光输出的第二亮度值并且基于校正的第二亮度值创建第一图像处理条件。

24. 发明授权

US08947728B2 Image forming apparatus which performs calibration for maintaining image quality 有权
标题翻译：执行用于保持图像质量的校准的图像形成装置
公开(公告)号：US08947728B2
公开(公告)日：2015-02-03
申请号：US13159772
申请日：2011-06-14
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： H04N1/60
CPC分类号： H04N1/6097 , H04N1/6033 , H04N2201/0081 , H04N2201/0094
摘要： A luminance value for a second printing medium that has been obtained by reading a pattern image formed on the second printing medium different from a first printing medium is converted into a corresponding density value on the first printing medium. Calibration for the first printing medium can then be performed using the second printing medium.
摘要翻译：通过读取与第一打印介质不同的第二打印介质上形成的图案图像获得的第二打印介质的亮度值在第一打印介质上被转换为相应的浓度值。然后可以使用第二打印介质执行第一打印介质的校准。

25. 发明授权

US08903262B2 Image forming apparatus responsive to image forming conditions 有权
标题翻译：图像形成装置响应图像形成条件
公开(公告)号：US08903262B2
公开(公告)日：2014-12-02
申请号：US13313292
申请日：2011-12-07
申请人： Yasuhito Shirafuji , Nobuhiko Zaima
发明人： Yasuhito Shirafuji , Nobuhiko Zaima
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/5058 , G03G15/0189
摘要： An image forming apparatus includes an image forming unit, a decision unit, an output unit, a control unit, and a setting unit. The image forming unit forms an image on an image bearing member. The decision unit decides a first image forming condition of the image forming unit for forming the image at a width that is wider than a predetermined width. The output unit outputs a signal in accordance with the thickness of the image. The control unit causes the image forming unit to form a measurement image having a width that is narrower than or equal to the predetermined width. The setting unit sets a second image forming condition of the image forming unit so that the thickness of the image that is narrower than or equal to the predetermined width becomes thinner than or equal to the predetermined thickness.
摘要翻译：图像形成装置包括图像形成单元，判定单元，输出单元，控制单元和设置单元。图像形成单元在图像承载部件上形成图像。决定单元确定用于形成宽度大于预定宽度的图像的图像形成单元的第一图像形成条件。输出单元根据图像的厚度输出信号。控制单元使得图像形成单元形成具有窄于或等于预定宽度的宽度的测量图像。设置单元设置图像形成单元的第二图像形成条件，使得窄于或等于预定宽度的图像的厚度变得小于或等于预定厚度。

26. 发明授权

US08879937B2 Image forming apparatus with electric field control 有权
标题翻译：具有电场控制的图像形成装置
公开(公告)号：US08879937B2
公开(公告)日：2014-11-04
申请号：US13484473
申请日：2012-05-31
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G03G15/16 , G03G21/00 , G03G15/00
CPC分类号： G03G15/5041
摘要： In an apparatus which forms an adjustment toner image outside an image area in a direction orthogonal to a moving direction of an image bearing member, a toner change amount of the adjustment toner image which is directly transferred onto and adheres to a transfer roller without interposing a recording medium differs depending on a transfer electric field. Since the transfer electric field is in a direction for reversing a charging polarity of the toner, when the transfer electric field is large, the toner charge amount of the adjustment toner image is reduced. Therefore, in case that the transfer electric field is large, the cleaning electric field is set small. Thereby the toner of the adjustment toner image can be sufficiently cleaned off by an electrostatic cleaning member irrespective of the transfer voltage, and contamination on a back side of a recording material can be avoided.
摘要翻译：在与图像承载部件的移动方向正交的方向上形成图像区域外的调色剂图像的调色剂图像的调色剂变化量直接转印到转印辊上并附着在转印辊上，记录介质根据转印电场而不同。由于转印电场是反转调色剂的充电极性的方向，所以当转印电场大时，调色剂图像的调色剂充电量减少。因此，在转印电场大的情况下，将清洁电场设定得较小。由此，可以通过静电清洁部件充分地清除调色剂图像的调色剂，而与转印电压无关，并且可以避免记录材料背面的污染。

27. 发明申请

US20120321331A1 IMAGE FORMING APPARATUS FOR DETECTING THICKNESS AND AREA RATIO OF TONER LAYER 有权
标题翻译：检测厚度和面积比例的图像形成装置
公开(公告)号：US20120321331A1
公开(公告)日：2012-12-20
申请号：US13489574
申请日：2012-06-06
申请人： Yasuhito Shirafuji , Tomohisa Itagaki , Nobuhiko Zaima , Takahiro Ishihara
发明人： Yasuhito Shirafuji , Tomohisa Itagaki , Nobuhiko Zaima , Takahiro Ishihara
IPC分类号： G03G15/00
CPC分类号： G03G15/5054 , G03G15/043 , G03G15/5025 , G03G15/5058 , G03G2215/00029
摘要： An image forming apparatus includes an image forming unit having an exposure unit and a developing unit; a detection unit configured to detect a thickness and an area ratio of a toner layer of a pattern image formed by the image forming unit; a storage unit configured to store data indicating permissible ranges for the thickness and the area ratio of the toner layer; and a correction unit configured to change, when the thickness or the area ratio of the toner layer detected by the detection unit falls outside the corresponding permissible range indicated by the data stored in the storage unit, a spot diameter of the laser beam so that the thickness and the area ratio of the toner layer respectively fall within the permissible ranges.
摘要翻译：图像形成装置包括具有曝光单元和显影单元的图像形成单元; 检测单元，被配置为检测由所述图像形成单元形成的图案图像的调色剂层的厚度和面积比; 存储单元，被配置为存储指示调色剂层的厚度和面积比的允许范围的数据; 以及校正单元，其被配置为当由检测单元检测到的调色剂层的厚度或面积比落在存储在存储单元中的数据所指示的相应容许范围之外时，改变激光束的光斑直径，使得调色剂层的厚度和面积比分别落在容许范围内。

28. 发明申请

US20120294643A1 IMAGE FORMING APPARATUS 审中-公开
标题翻译：图像形成装置
公开(公告)号：US20120294643A1
公开(公告)日：2012-11-22
申请号：US13399924
申请日：2012-02-17
申请人： Tomohisa Itagaki , Nobuhiko Zaima , Yasuhito Shirafuji , Takahiro Ishihara
发明人： Tomohisa Itagaki , Nobuhiko Zaima , Yasuhito Shirafuji , Takahiro Ishihara
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/0189 , G03G15/5058 , G03G2215/2074 , G03G2215/209
摘要： An image forming apparatus includes a conveyance unit to convey an image carrier and an image forming unit to form an image on the image carrier. The image forming apparatus also includes a first determining unit, a control unit, an irradiation unit, an output unit, and a second determining unit. The first determining unit determines a first image forming condition of the image forming unit for forming a heavy line image at a particular width and thickness. The control unit causes the image forming unit to form a first measurement image having a particular width and length. The irradiation unit emits light onto the image carrier. The output unit outputs a first signal corresponding to a thickness of the first measurement image by receiving reflected light. The second determining unit determines a second image forming condition for forming a fine line image at a particular width and thickness.
摘要翻译：图像形成装置包括：传送单元，用于传送图像载体和图像形成单元，以在图像载体上形成图像。图像形成装置还包括第一确定单元，控制单元，照射单元，输出单元和第二确定单元。第一确定单元确定用于形成特定宽度和厚度的重线图像的图像形成单元的第一图像形成条件。控制单元使图像形成单元形成具有特定宽度和长度的第一测量图像。照射单元将光发射到图像载体上。输出单元通过接收反射光来输出与第一测量图像的厚度对应的第一信号。第二确定单元确定用于形成特定宽度和厚度的细线图像的第二图像形成条件。

29. 发明授权

US08130409B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08130409B2
公开(公告)日：2012-03-06
申请号：US10863499
申请日：2004-06-09
申请人： Tomohisa Itagaki , Jiro Ishizuka , Nobuhiko Zaima
发明人： Tomohisa Itagaki , Jiro Ishizuka , Nobuhiko Zaima
IPC分类号： G03F3/06 , G05K15/02 , H04N1/60 , H06N1/403 , H04N1/40 , B41J2/15 , G03G17/04 , G03G15/00
CPC分类号： H04N1/40068
摘要： The image forming apparatus includes image forming device for forming an image, switching device for switching resolution of an image formed by the image forming device, processing device for performing stabilization processing for stabilizing quality of the image formed by the image forming device and changing device for changing a processing procedure of the stabilization processing in accordance with the resolution switched by the switching device. With these features, it is possible to avoid deterioration of image quality even if the resolution is switched.
摘要翻译：图像形成装置包括用于形成图像的图像形成装置，用于切换由图像形成装置形成的图像的分辨率的切换装置，用于执行用于稳定由图像形成装置形成的图像的质量的稳定化处理的处理装置和用于根据由切换装置切换的分辨率来改变稳定处理的处理步骤。利用这些特征，即使切换分辨率，也可以避免图像质量的劣化。

30. 发明申请

US20090016753A1 IMAGE FORMING APPARATUS AND CONTROL METHOD THEREFOR 审中-公开
标题翻译：图像形成装置及其控制方法
公开(公告)号：US20090016753A1
公开(公告)日：2009-01-15
申请号：US12169381
申请日：2008-07-08
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G03G15/043
CPC分类号： G03G15/326 , G03G15/0435 , G03G2215/0404 , G03G2215/0407
摘要： An image forming apparatus which improves the degree of freedom for changing the shape, diameter, light intensity distribution of the section of a laser beam. Emission of the plurality of lasers provided in a light source unit is separately controlled based on image data of one pixel. The laser lights emitted from the plurality of lasers are focused and a laser beam is formed. Exposure scanning of a photosensitive body is performed by the laser beam. A light emission pattern of the plurality of lasers is changed according to image data of each pixel.
摘要翻译：一种改善激光束截面的形状，直径，光强度分布的自由度的图像形成装置。基于一个像素的图像数据分别控制设置在光源单元中的多个激光器的发射。从多个激光器发射的激光被聚焦并且形成激光束。通过激光束进行感光体的曝光扫描。根据各像素的图像数据来改变多个激光器的发光图案。

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