公开(公告)号：US08095025B2

公开(公告)日：2012-01-10

申请号：US11867391

申请日：2007-10-04

申请人： Hitoshi Ishibashi ,  Shin Hasegawa ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Yushi Hirayama ,  Kentaroh Tomita ,  Shuji Hirai

发明人： Hitoshi Ishibashi ,  Shin Hasegawa ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Yushi Hirayama ,  Kentaroh Tomita ,  Shuji Hirai

IPC分类号： G03G15/00

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

摘要： An image forming apparatus includes an image forming unit configured to form a plurality of toner images on an image carrier, an optical detector configured to detect reflection light from the toner image, and dedicated to detect infrared rays and near-infrared rays, and a controller configured to perform a predetermined control using a detection results of the optical detector. Gradation pattern that is comprised of a plurality of toner patches formed in the image forming unit with an image forming condition to have different adhesive amounts, and is formed of at least two colors, and detection values detected by the optical detector are used for the predetermined control.

摘要翻译： 图像形成装置包括：图像形成单元，被配置为在图像载体上形成多个调色剂图像;光学检测器，被配置为检测来自调色剂图像的反射光，并专用于检测红外线和近红外线;以及控制器 被配置为使用所述光学检测器的检测结果来执行预定的控制。 由形成在图像形成单元中的具有不同粘合剂量的图像形成条件的多个调色剂贴片构成的并且由至少两种颜色形成并由光学检测器检测的检测值的渐变图案用于预定的 控制。

公开(公告)号：US07343126B2

公开(公告)日：2008-03-11

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： G03G15/01

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：US07193642B2

公开(公告)日：2007-03-20

申请号：US11255870

申请日：2005-10-24

申请人： Shuji Hirai ,  Takeo Tsukamoto

发明人： Shuji Hirai ,  Takeo Tsukamoto

IPC分类号： G06T5/00 ,  G06T7/00

CPC分类号： G03G15/5058 ,  G03G2215/0119

摘要： An image quality detecting apparatus detects image quality based on a specified image pattern formed on an image carrier. This apparatus includes a light-emitting device that radiates a spotlight on the image carrier, a lens, a scanning unit that scans the image pattern with the spotlight, and a photoelectric conversion element that detects a quantity of light reflected from the image pattern and the image carrier or light transmitted through the image pattern and the image carrier during the scanning. The image quality is detected by setting a diameter of the spotlight at least in a scanning direction to the reciprocal number of a spatial frequency or smaller in which human eyesight is the most sensitive, for example, to 1000 μm or less.

摘要翻译： 图像质量检测装置基于形成在图像载体上的指定图像图案来检测图像质量。 该装置包括：在图像载体上照射聚光灯的发光装置，透镜，用聚光灯扫描图像图案的扫描单元和检测从图像图案反射的光量的光电转换元件， 在扫描期间通过图像图案和图像载体传输的图像载体或光。 通过将聚光灯的直径至少在扫描方向上设定为人眼最敏感的空间频率或更小的倒数，例如达到1000μm以下，来检测图像质量。

公开(公告)号：US20060038873A1

公开(公告)日：2006-02-23

申请号：US11255870

申请日：2005-10-24

申请人： Shuji Hirai ,  Takeo Tsukamoto

发明人： Shuji Hirai ,  Takeo Tsukamoto

IPC分类号： B41J2/385

CPC分类号： G03G15/5058 ,  G03G2215/0119

摘要： An image quality detecting apparatus detects image quality based on a specified image pattern formed on an image carrier. This apparatus includes a light-emitting device that radiates a spotlight on the image carrier, a lens, a scanning unit that scans the image pattern with the spotlight, and a photoelectric conversion element that detects a quantity of light reflected from the image pattern and the image carrier or light transmitted through the image pattern and the image carrier during the scanning. The image quality is detected by setting a diameter of the spotlight at least in a scanning direction to the reciprocal number of a spatial frequency or smaller in which human eyesight is the most sensitive, for example, to 1000 μm or less.

摘要翻译： 图像质量检测装置基于形成在图像载体上的指定图像图案来检测图像质量。 该装置包括：在图像载体上照射聚光灯的发光装置，透镜，用聚光灯扫描图像图案的扫描单元和检测从图像图案反射的光量的光电转换元件， 在扫描期间通过图像图案和图像载体传输的图像载体或光。 通过将聚光灯的直径至少在扫描方向上设定为人眼最敏感的空间频率或更小的倒数，例如达到1000μm以下，来检测图像质量。

公开(公告)号：US20190196355A1

公开(公告)日：2019-06-27

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： G03G15/043 ,  G03G15/04

CPC分类号： G03G15/043 ,  G03G15/04072 ,  G03G15/5058 ,  G03G2215/00033 ,  G03G2215/00037

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：US09671716B2

公开(公告)日：2017-06-06

申请号：US15009990

申请日：2016-01-29

申请人： Naoto Watanabe ,  Shuji Hirai ,  Satoshi Kaneko ,  Terumichi Ochi ,  Muneaki Iwata

发明人： Naoto Watanabe ,  Shuji Hirai ,  Satoshi Kaneko ,  Terumichi Ochi ,  Muneaki Iwata

IPC分类号： G03G15/00 ,  G03G15/043 ,  H04N1/04 ,  H04N1/06

CPC分类号： G03G15/043 ,  H04N1/0283 ,  H04N1/04 ,  H04N1/06 ,  H04N1/113 ,  H04N2201/04755

摘要： An image forming apparatus includes: a latent image forming unit that forms a latent image on a latent image bearer with light from a light source; and a correction data generating unit that includes: an acquiring unit that acquires, for each position, a correction value of an intensity of the light source to equalize a density distribution of a latent image; a quantizing unit that generates a correction data for each position by quantizing a correction value for each position; and an excessive correction suppressing unit that outputs the correction data after reducing an amount of change from an immediately preceding latent image formation position, with respect to a position at which an absolute value of a restored value indicating a correction amount and generated based on the correction data exceeds an absolute value of the correction value.

公开(公告)号：US09423752B2

公开(公告)日：2016-08-23

申请号：US14726847

申请日：2015-06-01

申请人： Satoshi Kaneko ,  Shinji Kato ,  Shuji Hirai

发明人： Satoshi Kaneko ,  Shinji Kato ,  Shuji Hirai

IPC分类号： G03G15/08 ,  G03G15/16 ,  G03G21/14 ,  G03G15/00

CPC分类号： G03G15/556 ,  G03G15/5058 ,  G03G21/145 ,  G03G2215/0161

摘要： An image forming apparatus includes an image bearer; a toner image forming device; a transfer rotator; a transfer device; a rotation position detector; an image density detector; a density data acquisition unit to causes the toner image forming device to form an adjustment toner image equal to or greater in length than a circumferential length of the image bearer, cause a linear velocity difference between the image bearer and the transfer rotator in transfer of the adjustment toner image, and acquires, from a detected image density of the toner image transferred from the image bearer, detected by the image density detector, image density unevenness data with reference to detection of a reference rotation position of one of the image bearer and a rotator; and a correction unit to adjust an image forming condition according to the reference rotation position, the image density unevenness data, and the linear velocity difference.

摘要翻译： 图像形成装置包括图像载体; 调色剂图像形成装置; 转移旋转器; 转移装置; 旋转位置检测器; 图像浓度检测器; 密度数据获取单元，用于使调色剂图像形成装置形成等于或大于图像载体的周长的调色剂图像，导致图像载体和转印旋转体之间的线速度差异， 调整调色剂图像，并且从图像载体检测到的图像承载检测到的调色剂图像的检测图像浓度中获取图像浓度不均匀性数据，参照图像载体和图像载体之一的基准旋转位置的检测 旋转器 以及校正单元，用于根据基准旋转位置，图像浓度不均匀性数据和线速度差来调整图像形成条件。

公开(公告)号：US09400442B2

公开(公告)日：2016-07-26

申请号：US14802322

申请日：2015-07-17

申请人： Satoshi Kaneko ,  Shinji Kato ,  Shuji Hirai

发明人： Satoshi Kaneko ,  Shinji Kato ,  Shuji Hirai

IPC分类号： G03G15/02

CPC分类号： G03G15/0266 ,  G03G15/5037

摘要： An image forming apparatus includes a latent image carrier; a charger; a charging power supply; a latent image writer to write; a developing device; a rotary attitude sensor; a controller to perform a data formulating process to formulate a change pattern data and a bias changing process to cause the charging power supply to change the charging bias output based on readings from the rotary attitude sensor and the change pattern data, during a print job; and a surface potential sensor to detect a surface potential of the latent image carrier. In the data formulating process, the controller formulates the change pattern data based on the surface potential of the latent image carrier detected by the surface potential sensor, while the charging power supply outputting a constant charging bias, and based on readings from the rotary attitude sensor while the surface potential is being detected.

摘要翻译： 图像形成装置包括潜像载体; 充电器 充电电源; 潜象写作者写作; 显影装置; 旋转姿态传感器; 控制器，用于执行数据制定过程以制定改变模式数据和偏差改变过程，以在打印作业期间使充电电源基于来自旋转姿态传感器和改变模式数据的读数来改变充电偏压输出; 以及用于检测潜像载体的表面电位的表面电位传感器。 在数据制作过程中，控制器基于由表面电位传感器检测到的潜像载体的表面电位，同时输出恒定充电偏压的充电电源，并且基于来自旋转姿态传感器的读数来制定改变模式数据 同时正在检测表面电位。

公开(公告)号：US09250592B2

公开(公告)日：2016-02-02

申请号：US14592278

申请日：2015-01-08

申请人： Ryota Yamashina ,  Keitaro Shoji ,  Shuji Hirai ,  Takumi Waida ,  Terumichi Ochi

发明人： Ryota Yamashina ,  Keitaro Shoji ,  Shuji Hirai ,  Takumi Waida ,  Terumichi Ochi

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/5029 ,  G03G15/2039

摘要： An image forming apparatus includes a storage to store recording media, a smoothness detector to detect smoothness of the recording media, a memory unit to store smoothness values detected by the smoothness detector, a transfer device to transfer a toner image onto the recording media, a fixing device to fix the toner image onto the recording media, a temperature controller to determine a target fixing temperature for a second and subsequent recording media based on a predicted value calculated from the smoothness values, and a processor to reset the smoothness values in response to detection of an external factor that causes the smoothness detector to provide a smoothness value out of a predetermined range of the predicted value during an image forming operation from when the processor receives a sheet-feeding permission signal of one of the recording media stored in the storage until the recording medium is ejected.

摘要翻译： 图像形成装置包括存储记录介质的存储器，用于检测记录介质的平滑度的平滑度检测器，存储由平滑度检测器检测的平滑度值的存储单元，将调色剂图像转印到记录介质上的传送装置， 固定装置，用于将调色剂图像固定到记录介质上，温度控制器，用于基于从平滑度值计算的预测值来确定第二和随后的记录介质的目标定影温度，以及处理器，以响应于 检测在图像形成操作期间使平滑度检测器在预定值的预定范围内提供平滑度值的外部因素，从处理器接收到存储在存储器中的记录介质之一的送纸允许信号 直到记录介质被排出。

公开(公告)号：US20140270827A1

公开(公告)日：2014-09-18

申请号：US14203847

申请日：2014-03-11

申请人： Tetsuya MUTO ,  Shuji Hirai ,  Shinichi Akatsu ,  Shingo Suzuki ,  Satoshi Kaneko ,  Keita Gotoh ,  Yuuichiroh Uematsu

发明人： Tetsuya MUTO ,  Shuji Hirai ,  Shinichi Akatsu ,  Shingo Suzuki ,  Satoshi Kaneko ,  Keita Gotoh ,  Yuuichiroh Uematsu

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G2215/0116 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0161 ,  G03G2215/0164

摘要： An image forming apparatus includes an image carrier, a rotation-position detector, a development device, a transfer unit, a density sensor, and an image-forming-condition determination unit. The density sensor senses a density of a toner image on a transfer body. The image-forming-condition determination unit forms an image pattern, acquires periodical density variation information sensed by the density sensor and detection information of the rotation-position detector, and determines an image forming condition based on the periodical density variation information and the detection information acquired. The image carrier and the transfer body are different in linear velocity in an image formation in which the toner image is transferred to a recording medium. The image carrier and the transfer body are controlled to be equal in linear velocity in an information acquisition in which the image-forming-condition determination unit acquires the periodical density variation information and the detection information.

摘要翻译： 图像形成装置包括图像载体，旋转位置检测器，显影装置，转印单元，密度传感器和图像形成条件确定单元。 密度传感器感测转印体上的调色剂图像的浓度。 图像形成条件确定单元形成图像图案，获取由密度传感器感测的周期密度变化信息和旋转位置检测器的检测信息，并且基于周期密度变化信息和检测信息确定图像形成条件 获得了 在将调色剂图像转印到记录介质的图像形成中，图像载体和转印体的线速度不同。 在图像形成条件确定单元获取周期密度变化信息和检测信息的信息获取中，图像载体和转印体被控制为线性速度相等。