公开(公告)号：US07929891B2

公开(公告)日：2011-04-19

申请号：US12416692

申请日：2009-04-01

申请人： Norio Tomita ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Yoshikazu Harada ,  Tetsushi Ito

发明人： Norio Tomita ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Yoshikazu Harada ,  Tetsushi Ito

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/0132 ,  G03G2215/0161

摘要： An image forming apparatus include: a plurality of photosensitive drums; a latent image forming unit for forming an electrostatic latent image on each photosensitive drum; a developing unit for developing each electrostatic latent image; a transferring unit for superimposing and transferring the developed images onto a moving record medium; a measurement unit for measuring positions of the transferred images on the record medium; and a control unit for controlling the photosensitive drums, the latent image forming unit, the developing unit, and the transferring unit. The control unit includes: a calculating unit for calculating a value related to alignment errors in the positions measured by said measurement unit in accordance with a sine-curve fitting method; and a correcting unit for correcting the alignment errors by the calculated value.

摘要翻译： 图像形成装置包括：多个感光鼓; 用于在每个感光鼓上形成静电潜像的潜像形成单元; 用于显影每个静电潜像的显影单元; 传送单元，用于将显影图像叠加并传送到移动记录介质上; 测量单元，用于测量记录介质上转印图像的位置; 以及用于控制感光鼓，潜像形成单元，显影单元和转印单元的控制单元。 控制单元包括：计算单元，用于根据正弦曲线拟合方法计算由所述测量单元测量的位置中的对准误差相关的值; 以及校正单元，用于通过计算值校正对准误差。

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。

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。

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

公开(公告)号：US07809309B2

公开(公告)日：2010-10-05

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

公开(公告)号：US20090252540A1

公开(公告)日：2009-10-08

申请号：US12416692

申请日：2009-04-01

申请人： Norio Tomita ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Yoshikazu Harada ,  Tetsushi Ito

发明人： Norio Tomita ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Yoshikazu Harada ,  Tetsushi Ito

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/0132 ,  G03G2215/0161

摘要： An image forming apparatus include: a plurality of photosensitive drums; a latent image forming unit for forming an electrostatic latent image on each photosensitive drum; a developing unit for developing each electrostatic latent image; a transferring unit for superimposing and transferring the developed images onto a moving record medium; a measurement unit for measuring positions of the transferred images on the record medium; and a control unit for controlling the photosensitive drums, the latent image forming unit, the developing unit, and the transferring unit. The control unit includes: a calculating unit for calculating a value related to alignment errors in the positions measured by said measurement unit in accordance with a sine-curve fitting method; and a correcting unit for correcting the alignment errors by the calculated value.

摘要翻译： 图像形成装置包括：多个感光鼓; 用于在每个感光鼓上形成静电潜像的潜像形成单元; 用于显影每个静电潜像的显影单元; 传送单元，用于将显影图像叠加并传送到移动记录介质上; 测量单元，用于测量记录介质上转印图像的位置; 以及用于控制感光鼓，潜像形成单元，显影单元和转印单元的控制单元。 控制单元包括：计算单元，用于根据正弦曲线拟合方法计算由所述测量单元测量的位置中的对准误差相关的值; 以及校正单元，用于通过计算值校正对准误差。

公开(公告)号：US08095040B2

公开(公告)日：2012-01-10

申请号：US12334626

申请日：2008-12-15

申请人： Norio Tomita ,  Hiroshi Tachiki ,  Takahiko Yoshida ,  Yoshikazu Harada ,  Yoshiteru Kikuchi ,  Kenichi Isomi

发明人： Norio Tomita ,  Hiroshi Tachiki ,  Takahiko Yoshida ,  Yoshikazu Harada ,  Yoshiteru Kikuchi ,  Kenichi Isomi

IPC分类号： G03G15/08 ,  G03G15/10

CPC分类号： G03G15/1605 ,  G03G21/1623 ,  G03G21/1647 ,  G03G21/168 ,  G03G2215/0158 ,  G03G2221/1648 ,  G03G2221/169

摘要： In an embodiment of the present invention, an image forming apparatus includes a transfer belt that primarily transfers a toner image formed on a photosensitive drum; a secondary transfer unit including a transfer mechanism portion that secondarily transfers the primarily transferred toner image to a paper; an optical sensor that detects a reference toner image on the transfer belt; and a shutter that protects a detection face of the optical sensor, wherein a separation/contact mechanism portion disposed so as to be brought into contact with both of the shutter and the secondary transfer unit is provided, and the separation/contact mechanism portion allows the shutter to move so as to open and allows the secondary transfer unit to move so as to separate from the transfer belt when the reference toner image is detected by the optical sensor, and allows the shutter to move so as to separate from the transfer belt when the secondary transfer unit is drawn out from an apparatus main body.

摘要翻译： 在本发明的一个实施例中，图像形成装置包括主要传送形成在感光鼓上的调色剂图像的转印带; 二次转印单元，其包括二次将主要转印的调色剂图像转印到纸张上的转印机构部分; 检测转印带上的基准调色剂图像的光学传感器; 以及保护所述光学传感器的检测面的快门，其中设置有与所述挡板和所述二次转印单元接触的分离/接触机构部分，并且所述分离/接触机构部分允许 快门移动以便打开并且允许二次转印单元移动以便当由光学传感器检测到参考调色剂图像时与转印带分离，并且允许快门移动以便与转印带分离，当 二次转印单元从装置主体中抽出。

公开(公告)号：US08339669B2

公开(公告)日：2012-12-25

申请号：US12029354

申请日：2008-02-11

申请人： Norio Tomita ,  Yoshikazu Harada ,  Tetsushi Ito ,  Yoshiteru Kikuchi

发明人： Norio Tomita ,  Yoshikazu Harada ,  Tetsushi Ito ,  Yoshiteru Kikuchi

IPC分类号： G06K15/00 ,  G06K15/02 ,  H04N1/60

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。

公开(公告)号：US20090080914A1

公开(公告)日：2009-03-26

申请号：US12207697

申请日：2008-09-10

申请人： Yoshikazu Harada ,  Norio Tomita ,  Yoshiteru Kikuchi ,  Tetsushi Ito ,  Tetsuya Yamaguchi

发明人： Yoshikazu Harada ,  Norio Tomita ,  Yoshiteru Kikuchi ,  Tetsushi Ito ,  Tetsuya Yamaguchi

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。

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

IPC分类号： G03G15/00 ,  G03G15/01

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。