公开(公告)号：US20110123237A1

公开(公告)日：2011-05-26

申请号：US12926247

申请日：2010-11-04

申请人： Koichi Kudo ,  Takashi Hodoshima ,  Yuichi Hirose

发明人： Koichi Kudo ,  Takashi Hodoshima ,  Yuichi Hirose

IPC分类号： G03G15/14

CPC分类号： G03G15/161 ,  G03G15/1615 ,  G03G2215/00143 ,  G03G2215/0016

摘要： A belt meandering preventing device includes a belt displacement detection unit detecting the amount of displacement in a belt width direction of an endless belt rotatably stretched over support parts; and a belt meandering correction unit correcting the displacement in the belt width direction of the endless belt based on the amount of displacement detected by the belt displacement detection unit. The belt displacement detection unit includes a moving part moving in association with the displacement of the endless belt or an edge of the endless belt in the belt width direction and optical sensors outputting signals with output levels corresponding to the proportions of the moving part in optical paths of the optical sensors. The optical sensors are arranged such that the output levels of the optical sensors change as the endless belt is displaced in the belt width direction in a predetermined high-resolution detection range.

摘要翻译： 皮带曲折防止装置包括皮带位移检测单元，其检测可旋转地延伸在支撑部分上的环形皮带的带宽度方向上的位移量; 以及带曲折校正单元，其基于由带位移检测单元检测到的位移量来校正环形带的带宽度方向上的位移。 皮带位移检测单元包括移动部件，其与环带的位移或带宽度方向上的环形带的边缘相关联地移动，并且输出与光路中的移动部件的比例对应的输出信号的光学传感器 的光学传感器。 光学传感器被布置成使得当预定的高分辨率检测范围中环带在带宽度方向上移位时，光学传感器的输出电平变化。

公开(公告)号：US07853189B2

公开(公告)日：2010-12-14

申请号：US11976519

申请日：2007-10-25

申请人： Mikio Kamoshita ,  Koichi Kudo ,  Masahiko Kato ,  Hideaki Kibune

发明人： Mikio Kamoshita ,  Koichi Kudo ,  Masahiko Kato ,  Hideaki Kibune

IPC分类号： G03G15/01 ,  G03G15/20

CPC分类号： G03G15/0131 ,  G03G15/1615 ,  G03G15/1685 ,  G03G2215/00156 ,  G03G2215/0016 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0158

摘要： In a belt moving device that is capable of reducing belt speed fluctuation and positional deviation from a target belt position in a sub-scanning direction and performing highly precise position control in a main scanning direction, and an image forming apparatus that uses this belt moving device to prevent color shift in both the main scanning direction and sub-scanning direction of a formed image such that a high-quality image can be formed, belt shift control means reduce shift position variation within a single round trip of an endless belt by feeding back a target value for canceling out the shift position variation within a single round trip of the endless belt and feeding forward a value obtained by multiplying an inverse transfer characteristic of moving means by a transfer characteristic of a target value of the moving means in relation to the control content of the moving means.

摘要翻译： 在能够减少皮带速度变动和副扫描方向上的目标皮带位置的位置偏离并且在主扫描方向上执行高精度位置控制的皮带移动装置中，以及使用该皮带移动装置的图像形成装置 为了防止形成图像的主扫描方向和副扫描方向的颜色偏移，能够形成高质量的图像，带位移控制装置通过反馈减少环形带的单次往返行驶中的位移变化 用于消除环形带的单次往返行驶期间的换档位置变化的目标值，并且将通过将移动装置的反向传递特性乘以移动装置的目标值的传递特性而获得的值相对于 控制移动装置的内容。

公开(公告)号：US07526230B2

公开(公告)日：2009-04-28

申请号：US11168478

申请日：2005-06-29

申请人： Koichi Kudo ,  Hideyuki Takayama

发明人： Koichi Kudo ,  Hideyuki Takayama

IPC分类号： G03G15/00

CPC分类号： G03G15/50 ,  G03G15/1605 ,  G03G2215/00139 ,  G03G2215/0158

摘要： A mark sensing device of the present invention senses marks formed on a turnable body in a preselected periodic pattern in a direction of movement of the turnable body with light emitted from a light source. A slit mask is formed with slits for splitting the light emitted from the light source. A light receiving portion receives the light thus split and then incident on the mark. The slits of the slit mask each belong to either one of two regions one of which is shifted from the other by one-half of the period of the periodic pattern. The light receiving portion receives the light incident on the mark in each of the two regions and converts the light received to two electric signals. A control signal for controlling the amount of movement of the turnable body is produced from the two electric signals.

摘要翻译： 本发明的标记感测装置利用从光源发射的光，以可选择的周期性图案在可转动体的运动方向上感测形成在可转动体上的标记。 狭缝掩模形成有用于分离从光源发射的光的狭缝。 光接收部分接收由此分裂的光然后入射到标记上。 狭缝掩模的狭缝各自属于两个区域中的一个区域，其中一个区域从周期性图案的周期中的另一个偏移了一半。 光接收部分接收两个区域中的每一个中入射到标记上的光，并将接收的光转换成两个电信号。 用于控制可转动体的移动量的控制信号由两个电信号产生。

公开(公告)号：US20080174791A1

公开(公告)日：2008-07-24

申请号：US12003242

申请日：2007-12-21

申请人： Koichi Kudo

发明人： Koichi Kudo

IPC分类号： G06K1/00

CPC分类号： G01D5/34784

摘要： A position detection device, includes a scale; and an image pickup device which is configured to capture a mark pattern of the scale formed with a consecutive mark pattern generated by a change in prescribed reflectivity or permeability, the mark pattern of the scale being formed with substantially identical mark patterns which are disposed in a main moving direction of the scale continuously, and the mark pattern being arranged such that a part of the mark pattern in a sub moving direction intersecting with the main moving direction is projected, when the mark pattern is projected on the image pickup device, the position detection device being configured to detect a moving position of the scale by capturing the mark pattern of the scale with the image pickup device.

摘要翻译： 一种位置检测装置，包括标尺; 以及图像拾取装置，被配置为捕获通过由规定的反射率或磁导率的变化产生的连续的标记图案形成的标尺的标记图案，标尺的标记图案形成有基本相同的标记图案，其设置在 所述标尺图案的主移动方向是连续的，并且所述标记图案被布置成使得当与所述主移动方向相交的副移动方向上的所述标记图案的一部分被投射时，当所述标记图案被投影到所述图像拾取装置上时， 检测装置被配置为通过用图像拾取装置捕获标尺的标记图案来检测标尺的移动位置。

公开(公告)号：US07174237B2

公开(公告)日：2007-02-06

申请号：US10927344

申请日：2004-08-27

申请人： Hideyuki Takayama ,  Koichi Kudo

发明人： Hideyuki Takayama ,  Koichi Kudo

IPC分类号： G06F7/00

CPC分类号： G03G15/5008 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/55 ,  G03G2215/00075 ,  G03G2215/0119

摘要： A scale having marks disposed at a predetermined interval is provided on an intermediate transfer belt. A sensor detects the scale and outputs a binary signal. A counter counts a wave number of the binary signal. The wave number of the binary signal detected when the sensor detects a normal scale within a predetermined time is stored in a memory. A difference between the wave number stored and a wave number counted within a same period of time as the predetermined time is greater than a predetermined value, degradation of the scale and a change in a control of speed of the intermediate transfer belt into a control by a dummy signal is displayed on a display.

摘要翻译： 在中间转印带上设置具有以预定间隔设置的标记的刻度。 传感器检测刻度并输出二进制信号。 计数器对二进制信号的波数进行计数。 当传感器在预定时间内检测到正常刻度时检测到的二进制信号的波数被存储在存储器中。 所存储的波数与在规定时间以内的同一时间段内计数的波数大于预定值，缩放比例和中间转印带的速度变化变为控制的差 在显示器上显示虚拟信号。

公开(公告)号：US06925279B2

公开(公告)日：2005-08-02

申请号：US10368574

申请日：2003-02-20

申请人： Mikio Kamoshita ,  Koichi Kudo

发明人： Mikio Kamoshita ,  Koichi Kudo

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G2215/0158

摘要： A belt moving device of the present invention includes a drive shaft for moving the belt and a drive transfer line for transferring the output torque of a motor to the drive shaft. A marker sensor senses a marker positioned on the belt to thereby determine the position of the belt in the direction of movement. A rotation condition sensor senses the rotation condition of the drive shaft. A first correction information generating circuit generates, based on the output of the marker sensor, correction information for correcting the position of the belt. A second correction information generating circuit generates, based on the output of the rotation condition sensor, correction information for correcting the rotation condition of the drive shaft. A controller controls the movement of the motor in accordance with the correction information output from the first and second correction information generating circuits.

摘要翻译： 本发明的皮带移动装置包括用于移动皮带的驱动轴和用于将马达的输出扭矩传递到驱动轴的驱动传递线。 标记传感器感测位于皮带上的标记，从而确定皮带在运动方向上的位置。 旋转状态传感器感测驱动轴的旋转状态。 第一校正信息生成电路基于标记传感器的输出生成用于校正带的位置的校正信息。 第二校正信息生成电路基于旋转状态传感器的输出生成用于校正驱动轴的旋转状态的校正信息。 控制器根据从第一和第二校正信息产生电路输出的校正信息来控制电动机的移动。

公开(公告)号：US20050137745A1

公开(公告)日：2005-06-23

申请号：US10927344

申请日：2004-08-27

申请人： Hideyuki Takayama ,  Koichi Kudo

发明人： Hideyuki Takayama ,  Koichi Kudo

IPC分类号： G03G21/00 ,  G03G15/00 ,  G03G15/01 ,  G03G15/16 ,  G03G21/14 ,  G03G15/02

CPC分类号： G03G15/5008 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/55 ,  G03G2215/00075 ,  G03G2215/0119

摘要： A scale having marks disposed at a predetermined interval is provided on an intermediate transfer belt. A sensor detects the scale and outputs a binary signal. A counter counts a wave number of the binary signal. The wave number of the binary signal detected when the sensor detects a normal scale within a predetermined time is stored in a memory. A difference between the wave number stored and a wave number counted within a same period of time as the predetermined time is greater than a predetermined value, degradation of the scale and a change in a control of speed of the intermediate transfer belt into a control by a dummy signal is displayed on a display.

摘要翻译： 在中间转印带上设置具有以预定间隔设置的标记的刻度。 传感器检测刻度并输出二进制信号。 计数器对二进制信号的波数进行计数。 当传感器在预定时间内检测到正常刻度时检测到的二进制信号的波数被存储在存储器中。 所存储的波数与在规定时间以内的同一时间段内计数的波数大于预定值，缩放比例和中间转印带的速度变化变为控制的差 在显示器上显示虚拟信号。

公开(公告)号：US10121040B2

公开(公告)日：2018-11-06

申请号：US15497500

申请日：2017-04-26

申请人： Hiroshi Katayama ,  Koichi Kudo ,  Toshihiro Okamoto ,  Tamon Sadasue ,  Ken Oikawa ,  Hanako Bando ,  Daisuke Maeda

发明人： Hiroshi Katayama ,  Koichi Kudo ,  Toshihiro Okamoto ,  Tamon Sadasue ,  Ken Oikawa ,  Hanako Bando ,  Daisuke Maeda

IPC分类号： G06K7/14

摘要： A recognition apparatus includes one or more processors, a memory to store a plurality of instructions which, when executed by the processors, cause the processors to extract an optically-readable symbol from an optically captured image including an image of the optically-readable symbol, the optically-readable symbol including a first cell line having a plurality of first cells, and one or more second cell lines each having one or more second cells, each of the one or more second cell lines connected to respective ones of the plurality of first cells of the first cell line, recognize first information expressed by the first cell line included in the extracted optically-readable symbol, recognize second information expressed by the one or more second cell lines included in the extracted optically-readable symbol, and acquire identification information included in the optically-readable symbol based at least in part on the first information and the second information.

公开(公告)号：US20170355205A1

公开(公告)日：2017-12-14

申请号：US15617224

申请日：2017-06-08

申请人： Katsuhiro Tobita ,  Koichi Kudo

发明人： Katsuhiro Tobita ,  Koichi Kudo

IPC分类号： B41J13/00

摘要： A conveyed object detector includes first and second image obtaining units disposed at first and second positions different in a conveyance direction, to image a conveyed object to obtain first and second image data; respectively; a recognition unit to recognize an object adhering to the first and second image obtaining units based on imaging at the first and second positions to generate first and second stain data, respectively; a removal unit to remove the first and second stain data from the first and second image data, respectively; and a calculator to generate at least one of a position, a movement amount, and a moving speed of the conveyed object based on first and second corrected image data. Each of the first and second image obtaining units include a light source, an area sensor, and an optical element disposed between the area sensor and the conveyed object.

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。