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1. 发明申请

US20050007609A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20050007609A1
公开(公告)日：2005-01-13
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： G03G15/00 , H04N1/29 , H04N1/40 , G06K15/14 , H04N1/60
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。

2. 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。

3. 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。

4. 发明授权

US08929757B2 Image forming apparatus for detecting and correcting thickness and area ratio of toner layer 有权
标题翻译：图像形成装置，用于检测和校正调色剂层的厚度和面积比
公开(公告)号：US08929757B2
公开(公告)日：2015-01-06
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： G03G15/01 , G03G15/043 , 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，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对应允许范围之外时，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。

5. 发明授权

US08666265B2 Image forming apparatus and image forming method of electrophotography 有权
标题翻译：图像形成装置和电子照像的图像形成方法
公开(公告)号：US08666265B2
公开(公告)日：2014-03-04
申请号：US13366922
申请日：2012-02-06
申请人： Takahiro Ishihara , Tomohisa Itagaki , Nobuhiko Zaima , Yasuhito Shirafuji
发明人： Takahiro Ishihara , Tomohisa Itagaki , Nobuhiko Zaima , Yasuhito Shirafuji
IPC分类号： G03G15/00 , G03G15/043
CPC分类号： G03G15/043 , G03G15/5062
摘要： An image forming apparatus that is capable of reducing a sequential variation of graininess and keeping imaging quality. An exposure unit exposes the photoconductor to a light beam to form an electrostatic latent image. A development unit develops the electrostatic latent image with a toner. A change unit changes a height of toner image by changing an exposure spot area of the light beam on the photoconductor. A formation unit forms test patterns corresponding to different exposure spot areas on a recording sheet. A read unit reads the test patterns. A control unit detects graininess of each test pattern based on information about the test patterns read by the read unit, determines an exposure spot area where the graininess becomes good relatively, and controls the height of toner image on the photoconductor by setting the exposure spot area determined so as to be an exposure spot area for image formation.
摘要翻译：一种图像形成装置，其能够降低粒度的顺序变化并保持成像质量。曝光单元将光电导体暴露于光束以形成静电潜像。显影单元用调色剂显影静电潜像。改变单元通过改变光电导体上的光束的曝光光斑面积来改变调色剂图像的高度。形成单元形成对应于记录纸上的不同曝光点区域的测试图案。读取单元读取测试图案。控制单元基于由读取单元读取的测试图案的信息检测每个测试图案的颗粒度，确定相对于颗粒度变好的曝光点区域，并通过设置曝光点区域来控制调色剂图像在感光体上的高度确定为成像的曝光点区域。

6. 发明授权

US09116470B2 Adjustment of image density, using a density adjustment condition, in image forming apparatus 有权
标题翻译：在图像形成装置中使用密度调节条件调整图像浓度
公开(公告)号：US09116470B2
公开(公告)日：2015-08-25
申请号：US13563133
申请日：2012-07-31
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 , G03G15/16 , G03G15/01
CPC分类号： G03G15/161 , G03G15/0131 , G03G15/5058 , G03G2215/00059
摘要： An image forming apparatus configures a normal transfer potential in a yellow primary transfer unit, and configures a transfer potential which does not cause any retransfer phenomenon of a yellow measurement image in image carriers located on the downstream side of the yellow primary transfer unit. When a color difference obtained from a reference density and a density of a measurement image on an intermediate transfer belt becomes equal to or larger than a prescribed value, the image forming apparatus determines that multinary-color density adjustment is required.
摘要翻译：图像形成装置构成黄色一次转印单元中的正常转印电位，构成在黄色一次转印单元的下游侧的图像载体中不引起黄色测定图像的再次发生现象的转印电位。当从中间转印带上的参考浓度和测量图像的浓度获得的色差变得等于或大于规定值时，图像形成装置确定需要进行多色浓度调节。

7. 发明授权

US08908225B2 Image forming apparatus in which tone correction setting is controlled 有权
标题翻译：其中调节色调校正设置的图像形成装置
公开(公告)号：US08908225B2
公开(公告)日：2014-12-09
申请号：US13472703
申请日：2012-05-16
申请人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
发明人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
IPC分类号： G06K15/02 , H04N1/60
CPC分类号： H04N1/6027 , G06K15/027 , H04N1/6033 , H04N1/6097
摘要： An apparatus includes a forming unit; a reading unit; a conversion unit converting a signal corresponding to the image read by the reading unit into a signal indicating a density value; a correction unit performing tone correction on the density value of the signal output by the conversion unit; and a control unit controlling a tone correction setting in the tone correction unit by controlling the reading unit to read a tone correction image that was formed on a recording material by the forming unit. When controlling the tone correction setting, the control unit further changes a setting for image formation in the forming unit and a setting for conversion into a density value in the conversion unit according to the recording material used in the control of the tone correction setting.
摘要翻译：一种装置包括一个成形单元; 阅读单位转换单元，将与由读取单元读取的图像相对应的信号转换为指示密度值的信号; 校正单元，对由转换单元输出的信号的浓度值执行色调校正; 以及控制单元，通过控制读取单元读取由成形单元在记录材料上形成的色调校正图像来控制色调校正单元中的色调校正设置。当控制色调校正设置时，根据在色调校正设置的控制中使用的记录材料，控制单元进一步改变形成单元中的图像形成设置和转换单元中的浓度值的设置。

8. 发明申请

US20120314227A1 IMAGE FORMING APPARATUS IN WHICH TONE CORRECTION SETTING IS CONTROLLED 有权
标题翻译：音调校正设置的图像形成装置被控制
公开(公告)号：US20120314227A1
公开(公告)日：2012-12-13
申请号：US13472703
申请日：2012-05-16
申请人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
发明人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
IPC分类号： G06K15/02
CPC分类号： H04N1/6027 , G06K15/027 , H04N1/6033 , H04N1/6097
摘要： An apparatus includes a forming unit; a reading unit; a conversion unit converting a signal corresponding to the image read by the reading unit into a signal indicating a density value; a correction unit performing tone correction on the density value of the signal output by the conversion unit; and a control unit controlling a tone correction setting in the tone correction unit by controlling the reading unit to read a tone correction image that was formed on a recording material by the forming unit. When controlling the tone correction setting, the control unit further changes a setting for image formation in the forming unit and a setting for conversion into a density value in the conversion unit according to the recording material used in the control of the tone correction setting.
摘要翻译：一种装置包括一个成形单元; 阅读单位转换单元，将与由读取单元读取的图像相对应的信号转换为指示密度值的信号; 校正单元，对由转换单元输出的信号的浓度值执行色调校正; 以及控制单元，通过控制读取单元读取由成形单元在记录材料上形成的色调校正图像来控制色调校正单元中的色调校正设置。当控制色调校正设置时，根据在色调校正设置的控制中使用的记录材料，控制单元进一步改变形成单元中的图像形成设置和转换单元中的浓度值的设置。

9. 发明授权

US08199181B2 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US08199181B2
公开(公告)日：2012-06-12
申请号：US13021563
申请日：2011-02-04
申请人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
发明人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
IPC分类号： B41J2/47 , B41J27/00
CPC分类号： G03G15/0415 , G03G15/5062 , G03G2215/00751
摘要： Restricting a screen line number to prevent degradation in graininess depending on the type of recording paper causes a problem in which the image quality of output matter deteriorates. An image forming apparatus according to the present invention changes an exposure area for one pixel used in image formation in accordance with recording paper in consideration of differences in the influence of the height of toner on graininess depending on recording paper.
摘要翻译：根据记录纸的类型限制屏幕线号码以防止颗粒度的退化导致输出物质的图像质量恶化的问题。根据本发明的图像形成装置考虑到调色剂的高度对根据记录纸的颗粒度的影响的差异，根据记录纸改变用于图像形成中的一个像素的曝光区域。

10. 发明申请

US20110193923A1 IMAGE FORMING APPARATUS 失效
标题翻译：图像形成装置
公开(公告)号：US20110193923A1
公开(公告)日：2011-08-11
申请号：US13021563
申请日：2011-02-04
申请人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
发明人： Nobuhiko Zaima , Tomohisa Itagaki , Yasuhito Shirafuji , Takahiro Ishihara
IPC分类号： B41J2/385
CPC分类号： G03G15/0415 , G03G15/5062 , G03G2215/00751
摘要： Restricting a screen line number to prevent degradation in graininess depending on the type of recording paper causes a problem in which the image quality of output matter deteriorates. An image forming apparatus according to the present invention changes an exposure area for one pixel used in image formation in accordance with recording paper in consideration of differences in the influence of the height of toner on graininess depending on recording paper.
摘要翻译：根据记录纸的类型限制屏幕线号码以防止颗粒度的退化导致输出物质的图像质量恶化的问题。根据本发明的图像形成装置考虑到调色剂的高度对根据记录纸的颗粒度的影响的差异，根据记录纸改变用于图像形成中的一个像素的曝光区域。

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