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1. 发明申请

US20150261162A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150261162A1
公开(公告)日：2015-09-17
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
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。

2. 发明授权

US08818244B2 Developing device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US08818244B2
公开(公告)日：2014-08-26
申请号：US13453286
申请日：2012-04-23
申请人： Yushi Hirayama , Hitoshi Ishibashi , Shuji Hirai , Satoshi Kaneko , Hideo Muroi
发明人： Yushi Hirayama , Hitoshi Ishibashi , Shuji Hirai , Satoshi Kaneko , Hideo Muroi
IPC分类号： G03G15/08
CPC分类号： G03G15/0848 , G03G15/0889 , G03G15/0893
摘要： A developing device for developing an electrostatic latent image on an image bearing member including a developer bearing member opposed to the image bearing member to bear thereon a developer including a toner and a magnetic carrier; a developer containing part to contain the developer to supply the developer to the developer bearing member; an agitating or feeding member to agitate or feed the developer in the developer containing part; a magnetic permeability sensor to measure magnetic permeability of the developer to determine toner concentration of the developer; a developer feeder; a feeding member to feed the developer to the developer containing part through the developer feeder; and a driver to drive the feeding member independently of the agitating or feeding member. The magnetic permeability sensor is arranged on the developer feeder.
摘要翻译：一种显影装置，用于在包括与图像承载部件相对的显影剂承载部件的图像承载部件上显影静电潜像，以承载包括调色剂和磁性载体的显影剂; 显影剂容纳部分，用于容纳显影剂以将显影剂供应到显影剂承载构件; 搅拌或进料构件以搅拌或供给显影剂容纳部分中的显影剂; 用于测量显影剂的磁导率以确定显影剂的调色剂浓度的磁导率传感器; 显影剂供料器供给构件，用于通过显影剂供给器将显影剂供给到显影剂容纳部分; 以及独立于搅拌或进给构件驱动进给构件的驱动器。磁导率传感器设置在显影剂供给器上。

3. 发明授权

US09348288B2 Image forming apparatus forming a plurality of displaced test latent image parts 有权
标题翻译：图像形成装置形成多个位移测试潜像部分
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。

4. 发明授权

US08867937B2 Diffuse reflection output conversion method, attached powder amount conversion method, and image forming apparatus 有权
标题翻译：扩散反射输出转换法，附着粉末量转换法和图像形成装置
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。

5. 发明授权

US10481514B2 Image forming apparatus and image forming method 有权
公开(公告)号：US10481514B2
公开(公告)日：2019-11-19
申请号：US16054397
申请日：2018-08-03
申请人： Atsushi Mori , Hideo Muroi , Makoto Komatsu , Shinji Kato
发明人： Atsushi Mori , Hideo Muroi , Makoto Komatsu , Shinji Kato
IPC分类号： G03G15/00 , G03G15/01 , G03G15/08 , G03G21/10
摘要： An image forming apparatus includes a latent image bearer, an electrostatic latent image forming device, a potential sensor, a toner image forming device, a toner adhesion amount detector, and circuitry. The circuitry controls the electrostatic latent image forming device to create an adjustment pattern on the latent image bearer when the image forming apparatus is not printing, controls the potential sensor to detect an electric potential of the adjustment pattern, controls the electrostatic latent image forming device and the toner image forming device to create a test toner image during a printing period, controls the toner adhesion amount detector to detect a toner adhesion amount of the test toner image, and adjusts at least one image forming condition of the electrostatic latent image forming device and the toner image forming device based on the electric potential of the adjustment pattern and the toner adhesion amount of the test toner image.

6. 发明申请

US20190049872A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
公开(公告)号：US20190049872A1
公开(公告)日：2019-02-14
申请号：US16054397
申请日：2018-08-03
申请人： Atsushi Mori , Hideo Muroi , Makoto Komatsu , Shinji Kato
发明人： Atsushi Mori , Hideo Muroi , Makoto Komatsu , Shinji Kato
IPC分类号： G03G15/01 , G03G15/08 , G03G21/10
CPC分类号： G03G15/0126 , G03G15/0806 , G03G15/0855 , G03G15/0865 , G03G15/0891 , G03G15/0896 , G03G15/5037 , G03G15/5058 , G03G21/105 , G03G2215/0116
摘要： An image forming apparatus includes a latent image bearer, an electrostatic latent image forming device, a potential sensor, a toner image forming device, a toner adhesion amount detector, and circuitry. The circuitry controls the electrostatic latent image forming device to create an adjustment pattern on the latent image bearer when the image forming apparatus is not printing, controls the potential sensor to detect an electric potential of the adjustment pattern, controls the electrostatic latent image forming device and the toner image forming device to create a test toner image during a printing period, controls the toner adhesion amount detector to detect a toner adhesion amount of the test toner image, and adjusts at least one image forming condition of the electrostatic latent image forming device and the toner image forming device based on the electric potential of the adjustment pattern and the toner adhesion amount of the test toner image.

7. 发明授权

US09164458B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09164458B2
公开(公告)日：2015-10-20
申请号：US14499040
申请日：2014-09-26
申请人： Hideo Muroi
发明人： Hideo Muroi
IPC分类号： G03G15/00
CPC分类号： G03G15/55 , G03G15/5041 , G03G15/5054
摘要： An image forming apparatus includes an image carrier, an image forming unit, a density sensor, a gradation characteristic data generator, and a gradation corrector. The density sensor includes a low-pass filter to remove a high-frequency component of an output of the image density sensor. The gradation characteristic data generator forms a gradation correction pattern on the image carrier. The gradation correction pattern is a continuous gradation pattern including first and second patterns. The gradation characteristic data generator continuously detects image density of the continuous gradation pattern and background areas adjacent to the continuous gradation pattern to generate the gradation characteristic data. The gradation characteristic data generator forms a compensation pattern on the image carrier next to and continuous with a leading end of the first pattern in an image carrier rotational direction, to compensate for a response delay of the output of the density sensor due to the low-pass filter.
摘要翻译：图像形成装置包括图像载体，图像形成单元，密度传感器，灰度特性数据生成器和灰度校正器。密度传感器包括用于去除图像浓度传感器的输出的高频分量的低通滤波器。灰度特性数据生成器在图像载体上形成灰度校正图案。灰度校正图案是包括第一和第二图案的连续渐变图案。灰度特性数据发生器连续地检测连续灰度图案的图像浓度和与连续灰度图案相邻的背景区域，以生成灰度特性数据。灰度特性数据发生器在与图像载体旋转方向上的第一图案的前端相邻且连续的图像载体上形成补偿图案，以补偿密度传感器的输出的响应延迟，通过滤波器。

8. 发明授权

US09041974B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09041974B2
公开(公告)日：2015-05-26
申请号：US14275816
申请日：2014-05-12
申请人： Hideo Muroi
发明人： Hideo Muroi
IPC分类号： G06K15/00 , G03G15/00
CPC分类号： G03G15/5058 , G03G2215/0129 , G03G2215/0164
摘要： An image forming apparatus includes an image carrier, an image forming unit to form a multi-gradation image on the image carrier, a density detector to detect density of the multi-gradation image, a gradation characteristic data generator to generate gradation characteristic data, and a gradation corrector to correct image data of the multi-gradation image. The gradation characteristic data generator forms a gradation correction pattern on the image carrier via the image forming unit. The gradation correction pattern is a continuous gradation pattern including a first pattern having gradation levels from a maximum gradation level to a minimum gradation level and a second pattern having gradation levels from the minimum gradation level to the maximum gradation level. The gradation characteristic data generator continuously detects image density of the gradation correction pattern and background areas next to the gradation correction pattern via the density detector to generate the gradation characteristic data.
摘要翻译：图像形成装置包括图像载体，在图像载体上形成多灰度图像的图像形成单元，用于检测多灰度图像的浓度的浓度检测器，生成灰度特性数据的灰度特性数据生成器，以及灰度校正器，用于校正多等级图像的图像数据。灰度特性数据发生器经由图像形成单元在图像载体上形成灰度校正图案。灰度校正图案是包括具有从最大灰度级到最小灰度级的灰度级的第一图案和具有从最小灰度级到最大灰度级的灰度级的第二图案的连续灰度图案。灰度特性数据发生器经由浓度检测器连续地检测灰度校正图案和灰度校正图案旁边的背景区域的图像浓度，以生成灰度特性数据。

9. 发明申请

US20150093132A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150093132A1
公开(公告)日：2015-04-02
申请号：US14499040
申请日：2014-09-26
申请人： Hideo Muroi
发明人： Hideo Muroi
IPC分类号： G03G15/00
CPC分类号： G03G15/55 , G03G15/5041 , G03G15/5054
摘要： An image forming apparatus includes an image carrier, an image forming unit, a density sensor, a gradation characteristic data generator, and a gradation corrector. The density sensor includes a low-pass filter to remove a high-frequency component of an output of the image density sensor. The gradation characteristic data generator forms a gradation correction pattern on the image carrier. The gradation correction pattern is a continuous gradation pattern including first and second patterns. The gradation characteristic data generator continuously detects image density of the continuous gradation pattern and background areas adjacent to the continuous gradation pattern to generate the gradation characteristic data. The gradation characteristic data generator forms a compensation pattern on the image carrier next to and continuous with a leading end of the first pattern in an image carrier rotational direction, to compensate for a response delay of the output of the density sensor due to the low-pass filter.
摘要翻译：图像形成装置包括图像载体，图像形成单元，密度传感器，灰度特性数据生成器和灰度校正器。密度传感器包括用于去除图像浓度传感器的输出的高频分量的低通滤波器。灰度特性数据生成器在图像载体上形成灰度校正图案。灰度校正图案是包括第一和第二图案的连续渐变图案。灰度特性数据发生器连续地检测连续灰度图案的图像浓度和与连续灰度图案相邻的背景区域，以生成灰度特性数据。灰度特性数据发生器在与图像载体旋转方向上的第一图案的前端相邻且连续的图像载体上形成补偿图案，以补偿密度传感器的输出的响应延迟，通过滤波器。

10. 发明申请

US20130004207A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：US20130004207A1
公开(公告)日：2013-01-03
申请号：US13453286
申请日：2012-04-23
申请人： Yushi HIRAYAMA , Hitoshi Ishibashi , Shuji Hirai , Satoshi Kaneko , Hideo Muroi
发明人： Yushi HIRAYAMA , Hitoshi Ishibashi , Shuji Hirai , Satoshi Kaneko , Hideo Muroi
IPC分类号： G03G15/08
CPC分类号： G03G15/0848 , G03G15/0889 , G03G15/0893
摘要： A developing device for developing an electrostatic latent image on an image bearing member including a developer bearing member opposed to the image bearing member to bear thereon a developer including a toner and a magnetic carrier; a developer containing part to contain the developer to supply the developer to the developer bearing member; an agitating or feeding member to agitate or feed the developer in the developer containing part; a magnetic permeability sensor to measure magnetic permeability of the developer to determine toner concentration of the developer; a developer feeder; a feeding member to feed the developer to the developer containing part through the developer feeder; and a driver to drive the feeding member independently of the agitating or feeding member. The magnetic permeability sensor is arranged on the developer feeder.
摘要翻译：一种显影装置，用于在包括与图像承载部件相对的显影剂承载部件的图像承载部件上显影静电潜像，以承载包括调色剂和磁性载体的显影剂; 显影剂容纳部分，用于容纳显影剂以将显影剂供应到显影剂承载构件; 搅拌或进料构件以搅拌或供给显影剂容纳部分中的显影剂; 用于测量显影剂的磁导率以确定显影剂的调色剂浓度的磁导率传感器; 显影剂供料器供给构件，用于通过显影剂供给器将显影剂供给到显影剂容纳部分; 以及独立于搅拌或进给构件驱动进给构件的驱动器。磁导率传感器设置在显影剂供给器上。

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