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1. 发明申请

US20120020680A1 IMAGE FORMING APPARATUS WHICH PERFORMS CALIBRATION FOR MAINTAINING IMAGE QUALITY 有权
标题翻译：执行图像质量校准的图像形成装置
公开(公告)号：US20120020680A1
公开(公告)日：2012-01-26
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
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。

2. 发明授权

US07773895B2 Image forming apparatus and control method of the same 有权
标题翻译：图像形成装置及其控制方法
公开(公告)号：US07773895B2
公开(公告)日：2010-08-10
申请号：US11679314
申请日：2007-02-27
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/0855 , G03G15/5062 , G03G2215/0164
摘要： An image forming apparatus capable of detecting the density of an image patter with a sufficient accuracy irrespective of the color and/or the density of the image pattern, making it possible to carry out color stabilizing control of an output image with high accuracy. An image pattern formed on a transfer material is read by an optical sensor, and based on information on the image pattern, image forming conditions are controlled by a controller. In accordance with the color and the density of the image pattern, an accumulation time of the optical sensor is set.
摘要翻译：一种能够以与图像图案的颜色和/或密度无关地以足够的精度检测图像图案的浓度的图像形成装置，使得可以以高精度执行输出图像的颜色稳定控制。通过光学传感器读取形成在转印材料上的图像图案，并且基于关于图像图案的信息，图像形成条件由控制器控制。根据图像图案的颜色和密度，设置光学传感器的累积时间。

3. 发明授权

US07385737B2 Image processing apparatus and its control method 有权
标题翻译：图像处理装置及其控制方法
公开(公告)号：US07385737B2
公开(公告)日：2008-06-10
申请号：US10327185
申请日：2002-12-24
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： H04N1/46
CPC分类号： H04N1/40025 , H04N1/4078
摘要： Image control which requires time and troublesome work cannot be frequently performed, and image quality such as tonality reproducibility cannot be sufficiently stabilized in correspondence with constantly varying image characteristic of image forming apparatus. Accordingly, a density correction characteristic of image processing apparatus is controlled based on an image characteristic of pattern formed on a print sheet, then the image characteristic of pattern formed on an electrostatic drum is held as reference information. Upon normal image formation, a pattern is formed without an image formation area on the electrostatic drum, and the density correction characteristic is corrected based on the difference between the image characteristic of the pattern and the reference information.
摘要翻译：不能频繁地执行需要时间和麻烦的工作的图像控制，并且与图像形成装置的不断变化的图像特性相对应，不能充分稳定诸如音调再现性的图像质量。因此，基于在打印纸上形成的图案的图像特性来控制图像处理装置的浓度校正特性，然后将形成在静电鼓上的图案的图像特性保持为参考信息。在正常图像形成时，在静电鼓上形成没有图像形成区域的图案，并且基于图案的图像特性和参考信息之间的差异来校正浓度校正特性。

4. 发明申请

US20070230978A1 IMAGE FORMING APPARATUS AND CONTROL METHOD OF THE SAME 有权
标题翻译：图像形成装置及其控制方法
公开(公告)号：US20070230978A1
公开(公告)日：2007-10-04
申请号：US11679314
申请日：2007-02-27
申请人： Nobuhiko ZAIMA
发明人： Nobuhiko ZAIMA
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/0855 , G03G15/5062 , G03G2215/0164
摘要： An image forming apparatus capable of detecting the density of an image patter with a sufficient accuracy irrespective of the color and/or the density of the image pattern, making it possible to carry out color stabilizing control of an output image with high accuracy. An image pattern formed on a transfer material is read by an optical sensor, and based on information on the image pattern, image forming conditions are controlled by a controller. In accordance with the color and the density of the image pattern, an accumulation time of the optical sensor is set.
摘要翻译：一种能够以与图像图案的颜色和/或密度无关地以足够的精度检测图像图案的浓度的图像形成装置，使得可以以高精度执行输出图像的颜色稳定控制。通过光学传感器读取形成在转印材料上的图像图案，并且基于关于图像图案的信息，图像形成条件由控制器控制。根据图像图案的颜色和密度，设置光学传感器的累积时间。

5. 发明申请

US20060056864A1 Image forming apparatus and image control method 失效
标题翻译：图像形成装置和图像控制方法
公开(公告)号：US20060056864A1
公开(公告)日：2006-03-16
申请号：US11219734
申请日：2005-09-07
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G03G15/00 , G03G15/08 , G03G15/02 , G03G15/16
CPC分类号： G03G15/5058 , G03G2215/00042
摘要： An image forming apparatus 100 includes detection means 116 which detects an image characteristic of an image formed on an image bearing member 103; a first control means which controls a toner concentration in the developer, based on a detection result by the detection means, of an image characteristic of a first reference image for a first control for controlling the toner concentration in the developer; second control means which controls an image parameter, different from the toner concentration in the developer, thereby controlling an image density, based on a detection result by the detection means, of an image characteristic of a second reference image for a second control, different from the reference image for the first control; and correction means 231 which receives detection results of both image characteristics of the first and second reference images, and which, based on the detection result of the image characteristic of either of the reference images for the first and second controls, corrects the other control.
摘要翻译：图像形成装置100包括检测装置116，其检测形成在图像承载部件103上的图像的图像特性; 基于检测装置的检测结果控制显影剂中的调色剂浓度的第一控制装置，用于控制显影剂中调色剂浓度的第一控制的第一参考图像的图像特性; 第二控制装置，其控制与显影剂中的调色剂浓度不同的图像参数，从而基于检测装置的检测结果控制图像浓度，用于第二控制的第二参考图像的图像特性不同于第一个控制的参考图像; 以及校正装置231，其接收第一和第二参考图像的两个图像特征的检测结果，并且基于用于第一和第二控制的参考图像中的任一个的图像特征的检测结果来校正另一个控制。

6. 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。

7. 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。

8. 发明授权

US08879113B2 Image forming apparatus forming images in accordance with image forming conditions 有权
标题翻译：图像形成装置，根据图像形成条件形成图像
公开(公告)号：US08879113B2
公开(公告)日：2014-11-04
申请号：US13540831
申请日：2012-07-03
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G06K15/02 , H04N1/405 , G03G15/01 , G03G15/00
CPC分类号： G03G15/0173 , G03G15/5041 , G03G15/5054 , G06K15/027 , G06K15/1868
摘要： A processor determines a combination of the result of a comparison between a statistical value indicating the graininess of small dots and a predetermined reference value SDa and the result of a comparison between a statistical value indicating the graininess of large dots and a predicted value SDp. This combination shows which factors degrade image quality and which image forming conditions should be corrected and to what extent. Thus, the processor selects the image forming conditions to be corrected based on a combination of these comparison results, determines their correction values, and corrects the selected image forming conditions using the correction values. This makes it possible to properly correct the image forming conditions that correspond to the factors affecting image quality.
摘要翻译：处理器确定表示小点的粒度的统计值与预定参考值SDa之间的比较结果与表示大点的粒度的统计值与预测值SDp之间的比较结果。这种组合表明哪些因素会降低图像质量，哪些图像形成条件应该被修正以及在多大程度上。因此，处理器基于这些比较结果的组合来选择要校正的图像形成条件，确定它们的校正值，并使用校正值校正所选择的图像形成条件。这使得可以适当地校正与影响图像质量的因素相对应的图像形成条件。

9. 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。

10. 发明申请

US20130016365A1 IMAGE FORMING APPARATUS FORMING IMAGES IN ACCORDANCE WITH IMAGE FORMING CONDITIONS 有权
标题翻译：图像形成装置根据图像形成条件形成图像
公开(公告)号：US20130016365A1
公开(公告)日：2013-01-17
申请号：US13540831
申请日：2012-07-03
申请人： Nobuhiko Zaima
发明人： Nobuhiko Zaima
IPC分类号： G06K15/02
CPC分类号： G03G15/0173 , G03G15/5041 , G03G15/5054 , G06K15/027 , G06K15/1868
摘要： A processor determines a combination of the result of a comparison between a statistical value indicating the graininess of small dots and a predetermined reference value SDa and the result of a comparison between a statistical value indicating the graininess of large dots and a predicted value SDp. This combination shows which factors degrade image quality and which image forming conditions should be corrected and to what extent. Thus, the processor selects the image forming conditions to be corrected based on a combination of these comparison results, determines their correction values, and corrects the selected image forming conditions using the correction values. This makes it possible to properly correct the image forming conditions that correspond to the factors affecting image quality.
摘要翻译：处理器确定表示小点的粒度的统计值与预定参考值SDa之间的比较结果与表示大点的粒度的统计值与预测值SDp之间的比较结果。这种组合表明哪些因素会降低图像质量，哪些图像形成条件应该被修正以及在多大程度上。因此，处理器基于这些比较结果的组合来选择要校正的图像形成条件，确定它们的校正值，并使用校正值校正所选择的图像形成条件。这使得可以适当地校正与影响图像质量的因素相对应的图像形成条件。

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