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：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：US07777767B2

公开(公告)日：2010-08-17

申请号：US11592051

申请日：2006-11-01

申请人： Norio Tomita ,  Yoshikazu Harada ,  Kengo Matsuyama ,  Shinichi Yamane

发明人： Norio Tomita ,  Yoshikazu Harada ,  Kengo Matsuyama ,  Shinichi Yamane

IPC分类号： B41J2/385 ,  B41J2/47 ,  B41J2/435 ,  G01D15/14

CPC分类号： G03G15/5033 ,  G03G15/011 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161

摘要： An image forming apparatus includes an image forming unit that forms a color image in which a plurality of color component images are superimposed; and a formation controlling unit that allows the image forming unit to form images for adjustment of formation positions of the respective color component images. The formation controlling unit allows the image forming unit to form, for each color, a plurality of adjustment images having different tilts with respect to a main scanning direction. A shift of a detected position of each adjustment image from a reference position in which each adjustment image should be formed is calculated, a tilt and an intercept of a regression line that uses the reference positions and the calculated shifts as variables are calculated, and a shift in the main scanning direction and a shift in a sub-scanning direction are determined based on the calculated tilt and intercept.

摘要翻译： 图像形成装置包括：图像形成单元，其形成多个彩色分量图像重叠的彩色图像; 以及形成控制单元，其允许图像形成单元形成用于调整各个颜色分量图像的形成位置的图像。 形成控制单元允许图像形成单元针对每种颜色形成相对于主扫描方向具有不同倾斜的多个调整图像。 计算出每个调整图像的检测位置从其中应形成每个调整图像的参考位置的偏移，计算使用参考位置和计算的位移作为变量的回归线的倾斜和截距，并且 基于计算出的倾斜和截距来确定主扫描方向上的偏移和副扫描方向的偏移。

公开(公告)号：US20090255359A1

公开(公告)日：2009-10-15

申请号：US12413693

申请日：2009-03-30

申请人： Tetsushi ITO ,  Yoshikazu Harada ,  Norio Tomita ,  Noriaki Taguchi ,  Shuichi Mochizuki

发明人： Tetsushi ITO ,  Yoshikazu Harada ,  Norio Tomita ,  Noriaki Taguchi ,  Shuichi Mochizuki

IPC分类号： F16H55/08 ,  G03G15/00

CPC分类号： G03G21/186 ,  G03G15/757 ,  G03G21/1647 ,  G03G2221/1657 ,  Y10T74/19972

摘要： A rotational drive transmission mechanism used in an image forming apparatus for transmitting rotational drive force using an internal gear and an external gear having involute tooth profiles, includes photoreceptor drum drive couplings for transmitting rotational drive force to photoreceptor drums and a transfer drive coupling for transmitting rotational drive force to an intermediate transfer belt drive roller. The internal gears provided for these are so formed that all the drive vectors of the rotational drive force transmitted to the teeth of either the internal gear or the external gear in mesh with the internal gear, are made uniform so as to be oriented either outwards from the center of the rotational axis or inwards toward the center of the rotational axis, equivalently relative to the center of the rotational axis.

摘要翻译： 在用于使用内齿轮和具有渐开线齿廓的外齿轮传递旋转驱动力的图像形成装置中使用的旋转驱动传动机构包括用于将旋转驱动力传递到感光鼓的感光鼓驱动联接器和用于传递旋转的传送驱动联接器 对中间转印带驱动辊的驱动力。 为这些设计的内齿轮被形成为使得传递到与内齿轮啮合的内齿轮或外齿轮的齿的旋转驱动力的所有驱动矢量被制成均匀的，以便从 旋转轴线的中心或向着相对于旋转轴线的中心的旋转轴线的中心向内。

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：US08548347B2

公开(公告)日：2013-10-01

申请号：US13176273

申请日：2011-07-05

申请人： Norio Tomita

发明人： Norio Tomita

IPC分类号： G03G15/00

CPC分类号： G03G15/0189 ,  G03G15/0131 ,  G03G15/5058 ,  G03G2215/0132 ,  G03G2215/0161

摘要： A color image forming apparatus including a test pattern formation portion that forms test patterns of a plurality of colors in an image formation area in which images of the plurality of colors are formed on an image carrier and in an image non-formation area outside the image formation area on the image carrier, a detection portion that detects a shift of each of the test patterns of the plurality of colors formed in the image formation area and a shift of each of the test patterns of the plurality of colors formed in the image non-formation area, a computing portion that obtains, for each color, an offset value indicating an offset between the shift of the test pattern in the image non-formation area and the shift of the test pattern in the image formation area, and a storage portion that stores the offset value for each color.

摘要翻译： 一种彩色图像形成装置，包括测试图形形成部分，其形成在图像载体上的图像形成区域中形成多种颜色的测试图案，并且在图像外部的图像非形成区域中形成多个颜色的图像 形成在图像载体上的形成区域，检测部分，其检测在图像形成区域中形成的多种颜色的每个测试图案的移位以及在图像非形成中的多种颜色的每个测试图案的移位， 为每个颜色获得指示图像非形成区域中的测试图案的偏移与图像形成区域中的测试图案的移动之间的偏移的偏移值的计算部分，以及存储器 存储每种颜色的偏移值的部分。

公开(公告)号：US08456712B2

公开(公告)日：2013-06-04

申请号：US12704655

申请日：2010-02-12

申请人： Shohichi Fukutome ,  Mitsuharu Yoshimoto ,  Norio Tomita ,  Takeshi Mutoh ,  Kazuma Ogawa

发明人： Shohichi Fukutome ,  Mitsuharu Yoshimoto ,  Norio Tomita ,  Takeshi Mutoh ,  Kazuma Ogawa

IPC分类号： H04N1/36

CPC分类号： H04N1/00002 ,  H04N1/00013 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/00689 ,  H04N1/00732 ,  H04N1/00745 ,  H04N1/00782 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/0091

摘要： In one embodiment, image reading apparatuses 100a and 100b start reading an original image after a reading start time Ta has elapsed since detecting the transport timing of an original G on the upstream side in a transport direction Y1 relative to an original reading position R1, adjust the reading start time Ta based on a reading timing adjustment time T1a from when the transport timing of an adjustment sheet P is detected until when original reading portions 200a and 200b read a position considered to be a leading edge P′ in a first mark Q1 on the adjustment sheet P, and correct the reading start timing of the original G based on a leading edge reading error correction time T2a stored in advance.

摘要翻译： 在一个实施例中，图像读取装置100a和100b从检测到原稿G在传送方向Y1上相对于原始读取位置R1的上游侧的传送定时经过读取开始时间Ta之后开始读取原始图像，调整 读取开始时间Ta基于从检测到调色片P的传送定时直到原稿读取部分200a和200b读取第一标记Q1中被认为是前沿P'的位置的读取定时调整时间T1a 调整片P，并且基于预先存储的前缘读取错误校正时间T2a来校正原稿G的读取开始定时。

公开(公告)号：US20100014878A1

公开(公告)日：2010-01-21

申请号：US12497783

申请日：2009-07-06

申请人： Norio Tomita

发明人： Norio Tomita

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/161 ,  G03G15/50 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/0164

摘要： To provide an image forming apparatus which can prevent malfunction of the open/close control of a shutter due to erroneous detection of the toner on the transfer belt when the opening and closing of the shutter is detected from the output from an optical sensor. The separation/contact assembly for moving a cleaning member into and out of contact includes an arm rotationally supported on a pivot, an abutment part fixed to the body frame so as to limit the rotation of the arm and a spring for pressing the arm in the clockwise direction. The cleaning member is attached at the distal end of the arm. The cleaning member cleans the transfer belt surface when the shutter is closed, so that the cleaned transfer belt surface can be always detected when the shutter is open.

摘要翻译： 提供一种图像形成装置，当从光学传感器的输出检测到快门的打开和关闭时，可以防止由于错误地检测转印带上的调色剂而导致的快门的打开/关闭控制的故障。 用于将清洁构件移动和移出接触的分离/接触组件包括旋转地支撑在枢轴上的臂，固定到主体框架的抵靠部件，以限制臂的旋转和用于将手臂按压在弹簧中的弹簧 顺时针方向 清洁构件附接在臂的远端。 当快门关闭时，清洁构件清洁转印带表面，使得当快门打开时可以始终检测清洁的转印带表面。

公开(公告)号：US09024989B2

公开(公告)日：2015-05-05

申请号：US13540889

申请日：2012-07-03

申请人： Takenori Ohtoshi ,  Norio Tomita ,  Kiyoshi Sasoh ,  Yuji Kumagai

发明人： Takenori Ohtoshi ,  Norio Tomita ,  Kiyoshi Sasoh ,  Yuji Kumagai

IPC分类号： B41J2/47 ,  B41J2/525 ,  G03G21/20 ,  G03G15/04 ,  H04N1/00 ,  H04N1/113 ,  H04N1/23 ,  H04N1/50

CPC分类号： B41J2/525 ,  B41J2/473 ,  G03G15/04045 ,  G03G21/20 ,  G03G2215/0158 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00055 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/0009 ,  H04N1/1135 ,  H04N1/2346 ,  H04N1/506 ,  H04N2201/0094 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04732

摘要： In a registration step, the temperature near a polygon mirror (83) is detected by a first temperature sensor (85), and the internal ambient temperature of an image forming apparatus (1) is detected by a second temperature sensor (86). Also, a registration adjustment value of each color is determined and stored in a memory (75). In a printing step, the registration adjustment value (A) of each color determined in the registration step is corrected based on a change in the temperature near the polygon mirror (83) and a change in the internal ambient temperature of the image forming apparatus (1). Furthermore, the write timing of an electrostatic latent image onto each photosensitive drum (13) by an optical scanning device (11) is controlled. Then, the position of the electrostatic latent image on each photosensitive drum (13) is shifted by an amount corresponding to the corrected registration adjustment value.

摘要翻译： 在配准步骤中，通过第一温度传感器（85）检测多面镜（83）附近的温度，通过第二温度传感器（86）检测图像形成装置（1）的内部环境温度。 此外，确定每种颜色的配准调整值并将其存储在存储器（75）中。 在打印步骤中，基于多面镜83附近的温度变化和图像形成装置的内部环境温度的变化来校正在配准步骤中确定的每种颜色的配准调整值（A） 1）。 此外，控制通过光学扫描装置（11）将静电潜像写入每个感光鼓（13）的时序。 然后，将各感光鼓（13）上的静电潜像的位置移动与校正的对准调整值对应的量。

公开(公告)号：US08706001B2

公开(公告)日：2014-04-22

申请号：US13083837

申请日：2011-04-11

申请人： Kohichi Yamauchi ,  Shinichi Takeda ,  Norio Tomita ,  Shinji Nakazawa ,  Noriaki Taguchi ,  Kenichi Isomi ,  Shuichi Mochizuki

发明人： Kohichi Yamauchi ,  Shinichi Takeda ,  Norio Tomita ,  Shinji Nakazawa ,  Noriaki Taguchi ,  Kenichi Isomi ,  Shuichi Mochizuki

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

CPC分类号： G03G21/1619 ,  G03G15/0142 ,  G03G2221/1603 ,  G03G2221/1678

摘要： An image forming apparatus of the present invention includes a resin frame composed of a resin and an image forming unit that is removably inserted in the resin frame. The resin frame includes a base having a supporting surface that supports the image forming unit, a guide portion that extends in the base in an insertion direction in which the image forming unit is inserted along the supporting surface and that guides the image forming unit in the insertion direction while limiting movement of the image forming unit in an orthogonal direction that is orthogonal to the insertion direction, and a side plate portion that is provided at a peripheral edge of the base so as to extend in a direction perpendicular to the supporting surface, the base, the guide portion, and the side plate portion being integrally molded from a resin. A mold opening direction of a mold for molding the guide portion is set to a direction parallel to the orthogonal direction, and downstream end portions of the side plate portion in the mold opening direction are integrally connected to each other and extend essentially parallel to the perimeter of the base.

摘要翻译： 本发明的图像形成装置包括由树脂构成的树脂框架和可移除地插入树脂框架中的图像形成单元。 树脂框架包括具有支撑图像形成单元的支撑表面的基部，沿着插入方向在基部中沿着支撑表面插入图像形成单元的引导部，并且将图像形成单元引导到 插入方向，同时限制图像形成单元在与插入方向正交的正交方向上的移动;以及侧板部，其设置在基部的周缘处以沿与支撑表面垂直的方向延伸， 基座，引导部分和侧板部分由树脂整体模制。 用于模制导向部分的模具的开模方向设置成与正交方向平行的方向，并且侧板部分在开模方向上的下游端部彼此一体地连接并且基本上平行于周边延伸 的基地。