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公开(公告)号：US20070242980A1
公开(公告)日：2007-10-18
申请号：US11787149
申请日：2007-04-12
申请人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
发明人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0194 , G03G2215/0119 , G03G2215/0132 , G03G2215/0161
摘要： A color image forming apparatus including: a plurality of drum-type photoconductors for forming an image in a different color on each peripheral surface and the photoconductors having at least two different diameters; a plurality of driving sections for driving each photoconductor at a driving speed in accordance with the diameter so that each photoconductor rotates at a predetermined peripheral speed; a correction signal output section for outputting a speed correction signal to correct a periodic pitch fluctuation included in each formed image; and a drive control section for controlling the driving section to correct the driving speed of each photoconductor by the speed correction signal, wherein the speed correction signal is a signal having the same cycle as a rotational cycle of each photoconductor.
摘要翻译： 一种彩色图像形成装置，包括：用于在每个外围表面上形成不同颜色的图像的多个鼓型光电导体和具有至少两个不同直径的光电导体; 多个驱动部分，用于根据直径以驱动速度驱动每个感光体，使得每个感光体以预定的圆周速度旋转; 校正信号输出部分，用于输出速度校正信号以校正每个形成的图像中包括的周期性音调波动; 以及驱动控制部分，用于控制驱动部分以通过速度校正信号校正每个感光体的驱动速度，其中速度校正信号是具有与每个感光体的旋转周期相同周期的信号。
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公开(公告)号：US07636533B2
公开(公告)日：2009-12-22
申请号：US11787149
申请日：2007-04-12
申请人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
发明人： Yoshiteru Kikuchi , Yoshikazu Harada , Norio Tomita , Kengo Matsuyama , Yutaka Eba , Tetsushi Ito
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0194 , G03G2215/0119 , G03G2215/0132 , G03G2215/0161
摘要： A color image forming apparatus including: a plurality of drum-type photoconductors for forming an image in a different color on each peripheral surface and the photoconductors having at least two different diameters; a plurality of driving sections for driving each photoconductor at a driving speed in accordance with the diameter so that each photoconductor rotates at a predetermined peripheral speed; a correction signal output section for outputting a speed correction signal to correct a periodic pitch fluctuation included in each formed image; and a drive control section for controlling the driving section to correct the driving speed of each photoconductor by the speed correction signal, wherein the speed correction signal is a signal having the same cycle as a rotational cycle of each photoconductor.
摘要翻译： 一种彩色图像形成装置，包括：用于在每个外围表面上形成不同颜色的图像的多个鼓型光电导体和具有至少两个不同直径的光电导体; 多个驱动部分，用于根据直径以驱动速度驱动每个感光体，使得每个感光体以预定的圆周速度旋转; 校正信号输出部分，用于输出速度校正信号以校正每个形成的图像中包括的周期性音调波动; 以及驱动控制部分，用于控制驱动部分以通过速度校正信号校正每个感光体的驱动速度，其中速度校正信号是具有与每个感光体的旋转周期相同周期的信号。
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公开(公告)号：US07865119B2
公开(公告)日：2011-01-04
申请号：US11787147
申请日：2007-04-12
IPC分类号： G03G15/01
CPC分类号： G03G15/0194 , G03G2215/0161
摘要： A color registration method in a color image forming apparatus including a plurality of drum-type photoconductors for driving some or all of the photoconductors having the same diameter to match pitch fluctuations which correspond to a rotational cycle of the photoconductors, the method including: a first measurement step for forming a first registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a second measurement step for forming a second registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a calculation step for calculating a periodic fluctuation component being contained in the images in different colors and corresponding to the rotational cycle of the photoconductors so as to obtain phases thereof; and a step for adjusting a rotational phase of the photoconductors in order for the obtained phases matching to each other, wherein the interval between first and second registration images in the rotating direction is set such that disturbance components in which a cycle is assumed beforehand, cancel with each other by calculating the deviation.
摘要翻译： 一种彩色图像形成装置中的彩色配准方法，该彩色图像形成装置包括用于驱动具有相同直径的一部分或全部感光体的多个鼓式光电导体，以匹配与感光体的旋转周期对应的音调波动，该方法包括：第一 测量步骤，用于形成每个颜色的第一登记图像，并测量每个配准图像中的多个预定部分的形成位置; 第二测量步骤，用于形成每种颜色的第二对准图像，并测量每个配准图像中的多个预定部分的形成位置; 计算步骤，用于计算包含在不同颜色的图像中的周期性波动分量，并且对应于感光体的旋转周期，以获得其相位; 以及用于调整所述光电导体的旋转相位以使所获得的相位相互匹配的步骤，其中，将所述旋转方向上的第一和第二对准图像之间的间隔设定为预先假定周期的干扰分量， 通过计算偏差。
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公开(公告)号：US20070242986A1
公开(公告)日：2007-10-18
申请号：US11787147
申请日：2007-04-12
IPC分类号： G03G15/01
CPC分类号： G03G15/0194 , G03G2215/0161
摘要： A color registration method in a color image forming apparatus including a plurality of drum-type photoconductors for driving some or all of the photoconductors having the same diameter to match pitch fluctuations which correspond to a rotational cycle of the photoconductors, the method including: a first measurement step for forming a first registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a second measurement step for forming a second registration image for each color and measuring formation positions of a plurality of predetermined portions in each registration image; a calculation step for calculating a periodic fluctuation component being contained in the images in different colors and corresponding to the rotational cycle of the photoconductors so as to obtain phases thereof; and a step for adjusting a rotational phase of the photoconductors in order for the obtained phases matching to each other, wherein the interval between first and second registration images in the rotating direction is set such that disturbance components in which a cycle is assumed beforehand, cancel with each other by calculating the deviation.
摘要翻译： 一种彩色图像形成装置中的彩色配准方法，该彩色图像形成装置包括用于驱动具有相同直径的一部分或全部感光体的多个鼓式光电导体，以匹配与感光体的旋转周期对应的音调波动，该方法包括：第一 测量步骤，用于形成每个颜色的第一登记图像，并测量每个配准图像中的多个预定部分的形成位置; 第二测量步骤，用于形成每种颜色的第二对准图像，并测量每个配准图像中的多个预定部分的形成位置; 计算步骤，用于计算包含在不同颜色的图像中的周期性波动分量，并且对应于感光体的旋转周期，以获得其相位; 以及用于调整光电导体的旋转相位以使所获得的相位彼此匹配的步骤，其中第一和第二对准图像之间的旋转方向上的间隔被设定为使得预先假定周期的干扰分量取消 通过计算偏差。
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5.发明授权Image forming apparatus and image forming method with sheet slip compensation 有权图像形成装置和片材滑移补偿的图像形成方法公开(公告)号：US08339669B2
公开(公告)日：2012-12-25
申请号：US12029354
申请日：2008-02-11
CPC分类号： G03G15/011 , G03G15/041 , G03G15/326 , G03G2215/0132 , G03G2215/0141 , G03G2215/0465 , G03G2215/0482
摘要： An LD switch is turned ON to output image data outputted from an image processing section to a laser diode, and to irradiate a laser light to a photosensitive drum. The number of pixel dots included in the image data outputted from the image processing section is computed by line basis to detect an image density based on the total sum of the pixel dots of each color at a timing when the image data of Nth line is outputted from the image processing section. The detected image density is compared with a threshold value to turn OFF the LD switch at a timing when the image data of (N+α)th line is outputted when the image density is greater than the threshold value. This suppresses a variation in a rear-end-void length due to sheet slippage.
摘要翻译： LD开关导通，将从图像处理部输出的图像数据输出到激光二极管，并将激光照射到感光鼓。 通过线性计算包括在从图像处理部分输出的图像数据中的像素点的数量，以在第N行的图像数据被输出的定时基于每种颜色的像素点的总和来检测图像浓度 从图像处理部分。 将检测图像浓度与阈值进行比较，以在图像浓度大于阈值时输出第（N +α）行的图像数据的定时关闭LD开关。 这抑制了由于片材滑动导致的后端空隙长度的变化。
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公开(公告)号：US08055145B2
公开(公告)日：2011-11-08
申请号：US12335938
申请日：2008-12-16
申请人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Noriaki Taguchi , Yoshiteru Kikuchi , Kenichi Isomi
发明人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Noriaki Taguchi , Yoshiteru Kikuchi , Kenichi Isomi
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00042 , G03G2215/00059
摘要： An image forming apparatus includes a controller for detecting the opening and closing of a shutter from the output from an optical sensor and controlling the opening and closing operation of the shutter based on the detected result. The controller determines that if the optical sensor is turned “ON” within a predetermined period of time from when the shutter begins opening, the operation of the shutter from the closed state to the open state is correctly detected. When no reflected light is detected by the optical sensor even after a predetermined time has elapsed, the controller determines that an anomaly has occurred and closes the shutter and repeat another detecting process.
摘要翻译： 图像形成装置包括控制器，用于根据检测结果检测来自光学传感器的输出的快门的打开和关闭，并控制快门的打开和关闭操作。 控制器确定如果在从快门开始打开之后的预定时间段内光学传感器被“接通”，则正确地检测到快门从关闭状态到打开状态的操作。 即使经过了规定的时间后，即使光学传感器没有检测到反射光，控制器也判断出异常发生，关闭快门并重新进行另一检测处理。
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公开(公告)号：US20090180803A1
公开(公告)日：2009-07-16
申请号：US12335938
申请日：2008-12-16
申请人： Norio TOMITA , Yoshikazu Harada , Tetsushi Ito , Noriaki Taguchi , Yoshiteru Kikuchi , Kenichi Isomi
发明人： Norio TOMITA , Yoshikazu Harada , Tetsushi Ito , Noriaki Taguchi , Yoshiteru Kikuchi , Kenichi Isomi
IPC分类号： G03G15/16
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00042 , G03G2215/00059
摘要： An image forming apparatus includes a controller for detecting the opening and closing of a shutter from the output from an optical sensor and controlling the opening and closing operation of the shutter based on the detected result. The controller determines that if the optical sensor is turned “ON” within a predetermined period of time from when the shutter begins opening, the operation of the shutter from the closed state to the open state is correctly detected. When no reflected light is detected by the optical sensor even after a predetermined time has elapsed, the controller determines that an anomaly has occurred and closes the shutter and repeat another detecting process.
摘要翻译： 图像形成装置包括：控制器，用于根据光学传感器的输出检测快门的打开和关闭，并根据检测结果控制快门的打开和关闭操作。 控制器确定如果在从快门开始打开之后的预定时间段内光学传感器被“接通”，则正确地检测到快门从关闭状态到打开状态的操作。 即使经过了规定的时间后，即使光学传感器没有检测到反射光，控制器也判断出异常发生，关闭快门并重新进行另一检测处理。
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公开(公告)号：US20090080914A1
公开(公告)日：2009-03-26
申请号：US12207697
申请日：2008-09-10
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , G03G2215/0158
摘要： A sub CPU of an image forming section forms a toner image based on test line data on an intermediate transfer belt, detects an inclination of the formed toner image for each color component, calculates an adjustment indicative value for correcting the detected inclination for each color component, and outputs the adjustment indicative values to the BK adjusting section, C adjusting section, M adjusting section, and Y adjusting section, respectively, of an inclination adjusting section. The BK adjusting section, C adjusting section, M adjusting section, and Y adjusting section generate, based on the respective adjustment indicative values obtained from the sub CPU, adjustment amounts for an inclination adjustment process to be executed on image data, execute the inclination adjustment process based on the generated adjustment amounts, and output the obtained image data to the respective LDs of an exposure unit.
摘要翻译： 图像形成部的副CPU基于中间转印带上的测试线数据形成调色剂图像，检测所形成的调色剂图像对于每种颜色成分的倾斜度，计算用于校正每种颜色成分的检测倾斜度的调整指示值 ，并将调整指示值分别输出到倾斜调节部分的BK调节部分，C调节部分，M调节部分和Y调节部分。 BK调整部，C调整部，M调整部，Y调整部基于从副CPU获得的各调整指示值生成对图像数据执行的倾斜调整处理的调整量，执行倾斜调整 基于生成的调整量进行处理，并将所获得的图像数据输出到曝光单元的各个LD。
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9.发明授权公开(公告)号：US07706705B2
公开(公告)日：2010-04-27
申请号：US11944896
申请日：2007-11-26
申请人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Showtaro Okamoto , Tetsuya Yamaguchi , Yoshiteru Kikuchi
发明人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Showtaro Okamoto , Tetsuya Yamaguchi , Yoshiteru Kikuchi
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00025 , G03G2215/00059 , G03G2215/0016 , G03G2215/0132 , G03G2215/0161
摘要： An image forming apparatus including: image forming sections, each image forming section forming an image of a color component among plural color components under a predetermined condition, and forming a pattern of each color component for adjusting the condition; a detecting section that reads the formed patterns so as to perform a temporary detection and a main detection of a deviation from a reference under the condition; and a correction control section that determines whether the deviation of the temporary detection exceeds a predetermined threshold value or not, and when the deviation exceeds the threshold value, executes the main detection to fully detect the deviation so as to correct the condition, wherein the correction control section controls to form the pattern for the temporary detection, the number of the color components for the temporary detection being fewer than those of the patterns to be used for the main detection.
摘要翻译： 一种图像形成设备，包括：图像形成部分，每个图像形成部分在预定条件下形成多个颜色分量中的颜色分量的图像，并且形成用于调节条件的每个颜色分量的图案; 检测部，其读取形成的图案，以便在该条件下执行临时检测和主要检测与参考的偏差; 以及校正控制部，其判断临时检测的偏差是否超过规定的阈值，并且当偏差超过阈值时，执行主检测以完全检测偏差，以便校正该条件，其中校正 控制部分控制以形成用于临时检测的图案，用于临时检测的颜色分量的数量少于用于主检测的图案的颜色分量的数量。
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公开(公告)号：US20080298841A1
公开(公告)日：2008-12-04
申请号：US12127090
申请日：2008-05-27
申请人： Norio TOMITA , Yoshikazu Harada , Tetsushi Ito , Tetsuya Yamaguchi , Yoshiteru Kikuchi , Kenichi Isomi , Showtaro Okamoto
发明人： Norio TOMITA , Yoshikazu Harada , Tetsushi Ito , Tetsuya Yamaguchi , Yoshiteru Kikuchi , Kenichi Isomi , Showtaro Okamoto
IPC分类号： G03G15/00
CPC分类号： G03G15/757
摘要： It is an object to prevent distortions and deviations of images caused by the eccentricity of a driven gear mounted to a rotational shaft of a photosensitive drum. There are provided a driving gear which is secured to a rotational shaft of a rotational driving power source and is rotated at a constant peripheral speed, a driven gear secured coaxially to a rotational shaft of a cylindrical-shaped photosensitive member, a phase control gear having the same diameter as that of the driven gear and having the same rotational speed variation characteristic as that of the driven gear, and a transmission gear, and a driving force from the driving gear is transmitted to the driven gear through the phase control gear and the transmission gear.
摘要翻译： 本发明的目的是防止由安装到感光鼓的旋转轴的从动齿轮的偏心引起的图像的变形和偏差。 提供了一种驱动齿轮，该驱动齿轮固定在旋转驱动动力源的旋转轴上并以恒定的圆周速度旋转，同轴地与圆柱形感光构件的旋转轴固定的从动齿轮，具有 与从动齿轮的直径相同，并且具有与从动齿轮相同的转速变化特性和传动齿轮，并且来自驱动齿轮的驱动力通过相位控制齿轮传递到从动齿轮，并且 传动齿轮
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