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1. 发明授权

US08797600B2 Image forming apparatus and gradation correction method with density unevenness detection 有权
标题翻译：具有密度不均匀检测的图像形成装置和灰度校正方法
公开(公告)号：US08797600B2
公开(公告)日：2014-08-05
申请号：US13455070
申请日：2012-04-24
申请人： Takashi Harashima , Hideaki Tanaka , Katsuyuki Hirata , Toru Yamaguchi , Takaaki Kooriya
发明人： Takashi Harashima , Hideaki Tanaka , Katsuyuki Hirata , Toru Yamaguchi , Takaaki Kooriya
IPC分类号： H04N1/40 , G03G15/00 , H04N1/60
CPC分类号： H04N1/60 , G03G15/5058
摘要： Image forming apparatus (100) creates a toner pattern on intermediate transfer belt (11) as a preprocessing of gradation correction, and calculates a cycle at which density unevenness is largest. Then, a toner image for gradation correction is formed so as to cancel cyclic unevenness at a cycle at which the largest density unevenness occurs. As a result of this, it becomes possible to suppress the deterioration of density detection accuracy and perform a highly accurate gradation correction even if density unevenness of any cycle occurs.
摘要翻译：图像形成装置（100）在中间转印带（11）上形成调色剂图案作为灰度校正的预处理，并计算浓度不均匀度最大的循环。然后，形成用于灰度校正的调色剂图像，以便在发生最大浓度不均匀的循环中消除循环不匀。结果，即使发生任何周期的浓度不均匀，也可以抑制密度检测精度的劣化，并且执行高精度的灰度校正。

2. 发明申请

US20120301163A1 Image Forming Apparatus and Image Forming Method 审中-公开
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20120301163A1
公开(公告)日：2012-11-29
申请号：US13471354
申请日：2012-05-14
申请人： Katsuyuki Hirata , Hideaki Tanaka , Toru Yamaguchi , Takashi Harashima , Takaaki Kooriya
发明人： Katsuyuki Hirata , Hideaki Tanaka , Toru Yamaguchi , Takashi Harashima , Takaaki Kooriya
IPC分类号： G03G15/00
CPC分类号： G03G15/1605 , G03G15/0131 , G03G15/0189 , G03G15/5058 , G03G15/6585 , G03G2215/00059 , G03G2215/0132
摘要： Provided are an image forming apparatus and an image forming method capable of easily forming an output image having desired gradation characteristics and capable of reducing running cost. In an intermediate transfer-type image forming apparatus, an image forming section is configured by including a first image forming section which forms a color toner image on a photoconductor, and a second image forming section which is located on the upstream side of the first image forming section and forms a transparent toner image on the photoconductor. Further, after the transparent toner image is formed on an intermediate transfer member by the second image forming section, the first image forming section forms, on the basis of image data (correction gradation values) corrected by a gradation correcting section, a color toner image so that the color toner image is superimposed on the transparent toner image.
摘要翻译：提供了能够容易地形成具有期望的灰度特性并能够降低运行成本的输出图像的图像形成装置和图像形成方法。在中间转印型图像形成装置中，图像形成部通过在光电导体上包括形成彩色调色剂图像的第一图像形成部和位于第一图像的上游侧的第二图像形成部并在感光体上形成透明调色剂图像。此外，在通过第二图像形成部分在中间转印部件上形成透明调色剂图像之后，第一图像形成部分基于由灰度校正部分校正的图像数据（校正灰度值）形成彩色调色剂图像使得彩色调色剂图像叠加在透明调色剂图像上。

3. 发明申请

US20110123211A1 IMAGE FORMING DEVICE AND METHOD 有权
标题翻译：图像形成装置和方法
公开(公告)号：US20110123211A1
公开(公告)日：2011-05-26
申请号：US12745639
申请日：2009-07-23
申请人： Takaaki Kooriya , Kimio Nishizawa , Katsuya Toyofuku
发明人： Takaaki Kooriya , Kimio Nishizawa , Katsuya Toyofuku
IPC分类号： G03G15/10
CPC分类号： H04N1/00002 , G03G15/0136 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/0005 , H04N1/00053 , H04N1/00063 , H04N1/00087 , H04N1/0009 , H04N1/2346 , H04N1/295 , H04N1/40006 , H04N1/4076
摘要： An image forming apparatus including: an image forming unit including an image carrier for carrying a toner image to be transferred onto a sheet and a correcting toner image to be used for adjusting a density of the toner image, a detection sensor for detecting density information of the correcting toner image formed in a non-image area by the image forming unit, and a controller for causing the image forming unit to correct an image forming condition based on the density information to execute a stabilization control, wherein, when receiving at least one information of interruption information, mode switching information and job switching information during execution of the stabilization control, the controller causes the image forming unit continuously form non-formed residual correcting toner images different in density on the image carrier before finishing a processing operation in the stabilization control under execution.
摘要翻译：一种图像形成装置，包括：图像形成单元，包括用于承载要转印到片材上的调色剂图像的图像载体和用于调节调色剂图像的浓度的校正调色剂图像;检测传感器，用于检测调色剂图像的浓度信息由图像形成单元形成在非图像区域中的校正调色剂图像;以及控制器，用于使图像形成单元基于密度信息校正图像形成条件以执行稳定性控制，其中，当接收至少一个在执行稳定控制期间的中断信息，模式切换信息和作业切换信息的信息，控制器使图像形成单元在完成稳定化处理操作之前连续地形成图像载体上不同密度的未形成的残留校正调色剂图像控制执行。

4. 发明授权

US08437650B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08437650B2
公开(公告)日：2013-05-07
申请号：US12401979
申请日：2009-03-11
申请人： Takaaki Kooriya , Kimio Nishizawa , Takahiro Kanmaki
发明人： Takaaki Kooriya , Kimio Nishizawa , Takahiro Kanmaki
IPC分类号： G03G15/06
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059
摘要： An image forming apparatus may include a sensor which detects a density of a patch image formed on an image carrier; an image quality control section which controls an image forming condition based on a detection value of the sensor; and a judging section which judges if the detection value has a tendency of increasing or decreasing, or not, wherein, the image quality control section compensates the image forming condition with a first compensating amount in case when the detection value does not have the tendency of increasing nor decreasing, and compensates the image forming condition with a second compensating amount of which absolute value is larger than an absolute value of the first compensating amount corresponding to the second compensating amount, in case when the detection value has the tendency of increasing or decreasing.
摘要翻译：图像形成装置可以包括检测形成在图像载体上的贴片图像的浓度的传感器; 图像质量控制部，其基于所述传感器的检测值来控制图像形成条件; 以及判断部，其判定检测值是否具有增减的趋势，其中，所述图像质量控制部在所述检测值不具有所述检测值的趋势的情况下，以第一补偿量补偿所述图像形成条件当检测值具有增加或减少的趋势的情况下，增加或减小，并且以绝对值大于与第二补偿量相对应的第一补偿量的绝对值的第二补偿量来补偿图像形成条件。

5. 发明授权

US08515299B2 Sheet feeding apparatus and image forming apparatus with stabilization control 有权
标题翻译：片材进给装置和具有稳定控制的成像装置
公开(公告)号：US08515299B2
公开(公告)日：2013-08-20
申请号：US12745639
申请日：2009-07-23
申请人： Takaaki Kooriya , Kimio Nishizawa , Katsuya Toyofuku
发明人： Takaaki Kooriya , Kimio Nishizawa , Katsuya Toyofuku
IPC分类号： G03G15/00
CPC分类号： H04N1/00002 , G03G15/0136 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/0005 , H04N1/00053 , H04N1/00063 , H04N1/00087 , H04N1/0009 , H04N1/2346 , H04N1/295 , H04N1/40006 , H04N1/4076
摘要： An image forming apparatus may include an image carrier for carrying a toner image and a correcting toner image, a detection sensor for detecting density information of the correcting toner image; and a controller for causing the image forming unit to correct an image forming condition based on the density information detected by the detection unit to execute a stabilization control. The image forming unit may form a plurality of correcting toner images different in density over plural non-image areas. The controller may determine which mode is set between a processing speed priority mode and an image quality priority mode. The image forming unit may continuously form correcting toner images on the image carrier in a different manner depending on the mode. The detection sensor may detect density information of the correcting toner images. The image forming unit may finish a processing operation in the stabilization control under execution.
摘要翻译：图像形成装置可以包括用于承载调色剂图像和校正调色剂图像的图像载体，用于检测校正调色剂图像的浓度信息的检测传感器; 以及控制器，用于使图像形成单元基于由检测单元检测到的浓度信息来校正图像形成条件，以执行稳定控制。图像形成单元可以在多个非图像区域上形成不同密度的多个校正调色剂图像。控制器可以确定在处理速度优先模式和图像质量优先模式之间设置哪种模式。图像形成单元可以根据模式以不同的方式连续地在图像载体上形成校正调色剂图像。检测传感器可以检测校正调色剂图像的浓度信息。图像形成单元可以在执行中的稳定控制中完成处理操作。

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