公开(公告)号：US20140301748A1

公开(公告)日：2014-10-09

申请号：US14227169

申请日：2014-03-27

申请人： Shingo SUZUKI ,  Satoshi Kaneko ,  Shuji Hirai ,  Koichi Kudo ,  Jun Yamane ,  Shinji Kato

发明人： Shingo SUZUKI ,  Satoshi Kaneko ,  Shuji Hirai ,  Koichi Kudo ,  Jun Yamane ,  Shinji Kato

IPC分类号： G03G15/00

CPC分类号： G03G15/5025 ,  G03G15/065 ,  G03G15/5058

摘要： An image forming apparatus includes an image carrier; an image forming unit; a processor for controlling the image forming unit according to a predetermined image forming condition setting data; an image density sensor to detect an image density of the toner pattern formed on the image carrier; a reference rotary position detector; an image density fluctuation data acquisition unit to obtain an image density fluctuation data of more than one circumferential length of the photoreceptor drum with reference to the reference rotary position detected by the reference rotary position detector based on a result related to the toner pattern formed on the image carrier detected by the image density sensor; and a correction data generator to generate a correction data to correct a reference image forming condition setting data with a correction amount corresponding to each rotary position of the rotary member to thus reduce the image density fluctuation.

摘要翻译： 图像形成装置包括图像载体; 图像形成单元; 根据预定图像形成条件设置数据控制图像形成单元的处理器; 图像浓度传感器，用于检测形成在图像载体上的调色剂图案的图像浓度; 参考旋转位置检测器; 图像浓度波动数据获取单元，基于与在基准旋转位置检测器上形成的调色剂图案相关的结果，参考由基准旋转位置检测器检测的参考旋转位置，获得感光鼓的多于一个圆周长度的图像浓度波动数据 由图像密度传感器检测的图像载体; 以及校正数据生成器，用于生成校正数据，以校正与旋转构件的每个旋转位置相对应的校正量的参考图像形成条件设置数据，从而减小图像浓度波动。

公开(公告)号：US20130243457A1

公开(公告)日：2013-09-19

申请号：US13782389

申请日：2013-03-01

申请人： Satoshi KANEKO ,  Shinji Kato ,  Hitoshi Ishibashi ,  Shuji Hirai ,  Jun Yamane ,  Koichi Kudo ,  Shingo Suzuki

发明人： Satoshi KANEKO ,  Shinji Kato ,  Hitoshi Ishibashi ,  Shuji Hirai ,  Jun Yamane ,  Koichi Kudo ,  Shingo Suzuki

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G13/22 ,  G03G15/0849 ,  G03G15/22 ,  G03G15/5008 ,  G03G2215/00037 ,  G03G2215/00063 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0161 ,  G03G2215/0164

摘要： An image forming apparatus includes an image carrier; a developer carrier configured to adhere toner onto the image carrier; an image density detector to detect a density of an image on the image carrier formed by the developer carrier adhering the toner on the image carrier; a rotary member to form an image pattern of which density is detected by the image density detector; and a rotational position detector to detect a rotational position of the rotary member. In the image forming apparatus, the image pattern is generated based on the rotational position detected by the rotational position detector and the rotary member that the rotational position detector detects the rotational position thereof is either the image carrier or the developer carrier.

摘要翻译： 图像形成装置包括图像载体; 构造成将调色剂粘附到图像载体上的显影剂载体; 图像浓度检测器，用于检测由图像载体上的调色剂将由显影剂载体形成的图像载体上的图像的浓度; 旋转构件，用于形成由图像浓度检测器检测密度的图像图案; 以及旋转位置检测器，用于检测旋转构件的旋转位置。 在图像形成装置中，基于由旋转位置检测器和旋转构件检测的旋转位置，旋转位置检测器检测到其旋转位置是图像载体或显影剂载体，生成图像图案。

公开(公告)号：US10474056B2

公开(公告)日：2019-11-12

申请号：US16227980

申请日：2018-12-20

申请人： Yuuichiroh Uematsu ,  Satoshi Kaneko ,  Terumichi Ochi ,  Shuji Hirai

发明人： Yuuichiroh Uematsu ,  Satoshi Kaneko ,  Terumichi Ochi ,  Shuji Hirai

IPC分类号： G03G15/04 ,  G03G15/043 ,  G03G15/00

摘要： An image forming apparatus includes a latent image bearer; a writing device configured to write a latent image onto the latent image bearer; a detection device configured to detect, at a plurality of positions, a density of a toner image obtained through development of the latent image; and a controller configured to correct a writing intensity of the writing device to correct an uneven density based on detection values of the detection device. The controller determines whether each of the detection values is pass or fail. In response to a determination that a detection value is fail, the controller corrects the wiring intensity based on another detection value determined to be pass at a position different from a position at which the detection value is determined to be fail, instead of correcting the writing intensity based on the detection value determined to be fail.

公开(公告)号：US08693053B2

公开(公告)日：2014-04-08

申请号：US13238301

申请日：2011-09-21

申请人： Shuji Hirai

发明人： Shuji Hirai

IPC分类号： H04N1/40

CPC分类号： B41J3/60 ,  G03G15/234 ,  G03G15/235 ,  G03G15/5062 ,  G03G2215/0129 ,  H04N1/00578 ,  H04N1/0058 ,  H04N1/6038 ,  H04N2201/0082

摘要： An image forming apparatus includes a duplex conveyance path where a recording medium can be reversed and re-fed; and an output image detector to detect an image or a test pattern formed on a surface of the recording medium. The image forming apparatus is configured to: detect the test pattern formed on the first side of the recording medium by the output image detector; adjust and correct image forming conditions based on the detection result of the detector; convey the recording medium the first side of which the test pattern is formed on, to a duplex conveyance path; re-feed the recording medium and form a test pattern for verifying correction effect on a backside of the recording medium after correcting and updating the image forming conditions; and detect the test pattern formed on the backside of the recording medium again by the output image detector, thereby verifying the correction effect.

摘要翻译： 图像形成装置包括双面传送路径，其中可以反转并重新馈送记录介质; 以及输出图像检测器，用于检测在记录介质的表面上形成的图像或测试图案。 图像形成装置被配置为：通过输出图像检测器检测在记录介质的第一侧上形成的测试图案; 基于检测器的检测结果调整和校正图像形成条件; 将形成有测试图案的第一侧的记录介质传送到双面传送路径; 在校正和更新图像形成条件之后，重新馈送记录介质并形成用于验证记录介质背面的校正效果的测试图案; 并且通过输出图像检测器再次检测形成在记录介质背面上的测试图案，从而验证校正效果。

公开(公告)号：US20070140728A1

公开(公告)日：2007-06-21

申请号：US11678335

申请日：2007-02-23

申请人： Katsuaki MIYAWAKI ,  Takeshi Iijima ,  Yusuke Takeda ,  Shuji Hirai ,  Sadayuki Iwai ,  Hideki Kosugi ,  Makoto Obu

发明人： Katsuaki MIYAWAKI ,  Takeshi Iijima ,  Yusuke Takeda ,  Shuji Hirai ,  Sadayuki Iwai ,  Hideki Kosugi ,  Makoto Obu

IPC分类号： G03G15/16 ,  G03G15/01

CPC分类号： G03G15/0131 ,  G03G15/0194 ,  G03G15/161 ,  G03G2215/0119 ,  G03G2215/0129 ,  G03G2215/0132 ,  G03G2215/0141

摘要： A tandem image forming device for an image forming apparatus of the present invention includes a plurality of image forming means arranged side by side along an intermediate image transfer belt. The image forming means each include a developing device and a cleaning device arranged around an image carrier. One of nearby image forming means has its cleaning device positioned above the developing device of the other image forming means, e.g., an agitating section forming part of the image forming means. This configuration insures smooth circulation of a developer and therefore obviates an irregular developer distribution while reducing the overall size of the image forming device.

摘要翻译： 本发明的图像形成装置的串联图像形成装置包括沿着中间图像转印带并排布置的多个图像形成装置。 图像形成装置各自包括显影装置和布置在图像载体周围的清洁装置。 附近的图像形成装置之一具有其清洁装置，其位于另一图像形成装置的显影装置上方，例如形成图像形成装置的一部分的搅动部分。 这种构造确保了显影剂的平滑循环，因此消除了不规则的显影剂分布，同时减小了图像形成装置的整体尺寸。

公开(公告)号：US07151901B2

公开(公告)日：2006-12-19

申请号：US10716536

申请日：2003-11-20

申请人： Shuji Hirai

发明人： Shuji Hirai

IPC分类号： G03G15/00 ,  G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G15/0855 ,  G03G2215/0607

摘要： An image forming apparatus including a latent carrier and a charging device. The charging device is configured to charge a surface of the latent carrier. An exposure device is configured to expose a surface of the latent carrier for forming a latent image thereon. A transfer device is provided to transfer a developed toner image on the latent carrier to a recording medium. The image forming apparatus includes a developing device having a pooling portion configured to pool a two-component developer and an agitating device configured to agitate developer in the pool portion. A developer carrier replenishes developer to the latent carrier. A first measurement device and a second measurement device are configured to measure developer characteristics wherein the first and second measurement devices compare their respective outputs to measure a deterioration rate of the developer.

摘要翻译： 一种包括潜载体和充电装置的图像形成装置。 充电装置构造成对潜载体的表面充电。 曝光装置被配置为暴露潜像载体的表面以在其上形成潜像。 提供转印装置以将潜载体上显影的调色剂图像转印到记录介质上。 图像形成装置包括显影装置，其具有被配置为汇集双组分显影剂的汇集部分和构造成搅拌游泳池部分中的显影剂的搅拌装置。 开发商运营商将开发商补充到潜在运营商。 第一测量装置和第二测量装置被配置为测量显影剂特性，其中第一和第二测量装置比较它们各自的输出以测量显影剂的劣化率。

公开(公告)号：US09348288B2

公开(公告)日：2016-05-24

申请号：US14619387

申请日：2015-02-11

申请人： Satoshi Kaneko ,  Shinji Kato ,  Shuji Hirai ,  Hideo Muroi ,  Terumichi Ochi

发明人： Satoshi Kaneko ,  Shinji Kato ,  Shuji Hirai ,  Hideo Muroi ,  Terumichi Ochi

IPC分类号： G03G15/00 ,  G03G15/043 ,  G03G15/06

CPC分类号： G03G15/5041 ,  G03G15/043 ,  G03G15/065

摘要： An image forming apparatus includes a latent image bearer, a toner image forming unit, and a transfer device. The toner image forming unit includes a charger, a latent image forming device, and a developing device, and is configured to form a test latent image pattern on a surface of the latent image bearer, and to develop the test latent image pattern into a test toner pattern. The test latent image pattern includes a plurality of test latent image parts partly offset from one another in a main scanning direction. The image forming apparatus also includes a developing current detector and a processor to detect uneven image density in the main scanning direction using the test latent image pattern, based on the developing current detected by the developing current detector, to adjust the uneven image density in the main scanning direction.

摘要翻译： 图像形成装置包括潜像载体，调色剂图像形成单元和转印装置。 调色剂图像形成单元包括充电器，潜像形成装置和显影装置，并且被配置为在潜像承载体的表面上形成测试潜像图案，并将测试潜像图案显影成测试 墨粉图案。 测试潜像图案包括在主扫描方向上彼此部分偏移的多个测试潜像部分。 图像形成装置还包括显影电流检测器和处理器，用于基于由显影电流检测器检测到的显影电流，使用测试潜像图案来检测主扫描方向上的不均匀图像浓度，以调整不均匀图像浓度 主扫描方向。

公开(公告)号：US08867937B2

公开(公告)日：2014-10-21

申请号：US13495405

申请日：2012-06-13

申请人： Hideo Muroi ,  Yushi Hirayama ,  Shuji Hirai ,  Hitoshi Ishibashi

发明人： Hideo Muroi ,  Yushi Hirayama ,  Shuji Hirai ,  Hitoshi Ishibashi

IPC分类号： G03G15/00 ,  G01N21/47

CPC分类号： G03G15/5058 ,  G01N21/4738 ,  G01N21/4785 ,  G03G2215/0148

摘要： In an embodiment, a diffuse reflection output conversion method is executed in an apparatus detecting a plurality of gradation patterns. The apparatus includes a light emitter and light receiver, and detects specular reflection and diffuse reflection simultaneously. A region before specular reflection saturation is a region where the specular reflection component decreases and saturates at minimum level. A diffuse reflection detector is calibrated by: obtaining a diffuse reflection output resulting from an amount of attached powder at a border between the region before specular reflection saturation and the region after specular reflection saturation; calculating a ratio between the diffuse reflection output and a reference diffuse reflection output calculated in advance as a calibration coefficient; and multiplying a diffuse reflection output obtained from the gradation patterns by the calibration coefficient calculated at the calculating.

摘要翻译： 在一个实施例中，在检测多个灰度图案的装置中执行漫反射输出转换方法。 该装置包括光发射器和光接收器，同时检测镜面反射和漫反射。 镜面反射饱和之前的区域是镜面反射分量降低并在最小水平饱和的区域。 漫反射检测器通过以下方式来校准：获得由镜面反射饱和之前的区域与镜面反射饱和之后的区域之间的边界处附着的粉末的量产生的漫反射输出; 计算预先计算的漫反射输出与参考漫反射输出之间的比值作为校准系数; 并将从灰度图案获得的漫反射输出乘以在计算时计算的校准系数。

公开(公告)号：US08265494B2

公开(公告)日：2012-09-11

申请号：US12604819

申请日：2009-10-23

申请人： Hiroyuki Kawamoto ,  Kazunari Tonami ,  Shuji Hirai ,  Hiroshi Okuda

发明人： Hiroyuki Kawamoto ,  Kazunari Tonami ,  Shuji Hirai ,  Hiroshi Okuda

IPC分类号： G03G15/08

CPC分类号： G03G15/5062 ,  G03G15/0853 ,  G03G15/0856 ,  G03G15/0893

摘要： An image-information acquiring unit acquires the image information divided at least in one of a main-scanning direction and a sub-scanning direction. A supply control unit calculates basic-supply patterns of a supply amount of toner and controls the supply amount at a supply point in a developing unit using a toner supply pattern combined with the basic-supply patterns that eliminate temporal variation in toner density of the developer, at the specific point, due to development of the latent image.

摘要翻译： 图像信息获取单元获取至少在主扫描方向和副扫描方向之一中划分的图像信息。 供应控制单元计算调色剂供应量的基本供给模式，并使用与消除显影剂的调色剂密度的时间变化的基本供给图案组合的调色剂供给图案来控制显影单元的供给点处的供给量 ，具体来说，由于潜像的发展。

公开(公告)号：US20090324267A1

公开(公告)日：2009-12-31

申请号：US12482782

申请日：2009-06-11

申请人： Akira YOSHIDA ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Shuji Hirai ,  Kayoko Tanaka ,  Yushi Hirayama ,  Tetsuya Muto

发明人： Akira YOSHIDA ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Shuji Hirai ,  Kayoko Tanaka ,  Yushi Hirayama ,  Tetsuya Muto

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G2215/00059 ,  G03G2215/00063

摘要： An image forming apparatus forms a plurality of tone patterns of different colors, each of which containing a plurality of toner patches having different toner densities. Some of the toner patches in each of the tone patterns are formed with a predetermined fixed developing bias and the rest of the toner patches in each of the tone patterns are formed with developing biases set based on previous developing biases that have been obtained through a previous control process. The largest toner density of the toner patches in each of the tone patterns is determined based on a magnitude relation of previous index values obtained through the previous control process.

摘要翻译： 图像形成装置形成不同颜色的多个色调图案，每个色调图案包含具有不同调色剂浓度的多个调色剂贴片。 每个色调图案中的一些调色剂贴片以预定的固定的显影偏压形成，并且每个色调图案中的其余调色剂贴片形成有基于先前显影偏差设定的显影偏压， 控制过程。 基于通过先前的控制处理获得的先前指标值的大小关系确定每个色调图案中的调色剂贴片中最大的调色剂浓度。