公开(公告)号：US20030021493A1

公开(公告)日：2003-01-30

申请号：US10188365

申请日：2002-07-03

Applicant: FUJI PHOTO FILM CO., LTD.

Inventor： Daisuke Nakaya ,  Koji Wada ,  Katsuto Sumi ,  Hiroshi Sunagawa

IPC: G06K009/54 ,  G11B007/00

CPC classification number: H04N1/047 ,  G06K15/1238 ,  H04N1/06 ,  H04N1/195 ,  H04N2201/02416 ,  H04N2201/0426 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04755 ,  H04N2201/04762 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: The image recording method and image recording apparatus synchronize phase of a light deflector with rotation of a drum in response to the drum start point detection signal generated each time the drum rotates once, expose the two-dimensional image of one frame formed by a group of light sources disposed two-dimensionally onto the recording medium while causing the image at rest on the recording medium relatively thereto, thereafter move the optical system in the auxiliary scanning direction by an integral multiple of a pixel pitch forming one frame as well as deflect an angle of the light deflector in the main scanning direction by one frame so as to expose the next frame and on for one rotation of the drum. When the position is dislocated in the auxiliary scanning direction at the time the recording medium is to be exposed in a subsequent one rotation of the drum, the method and apparatus correct the dislocation of the position in the auxiliary scanning direction by changing an auxiliary scanning movement speed in a non-exposure time zone between the previous and subsequent rotations of the drum. Accordingly, the method and apparatus can prevent the occurrence of streaked unevenness in the surface exposure and spiral exposure.

Abstract translation: 图像记录方法和图像记录装置响应于每次滚筒旋转一次时产生的滚筒起点检测信号，使光偏转器的相位与滚筒的旋转同步，使由一组的一组形成的一帧的二维图像 将光源二维地设置在记录介质上，同时使相对于其的记录介质上的图像静止，然后将辅助扫描方向上的光学系统移动到形成一帧的像素间距的整数倍，以及偏转角度 的光导向器在主扫描方向上一个框架，以便暴露下一个框架并接通滚筒的一个旋转。 当在随后的鼓的一次旋转中当记录介质被曝光时位置在辅助扫描方向上脱位时，该方法和装置通过改变辅助扫描运动来校正辅助扫描方向上位置的位错 在鼓的先前和随后的转动之间的非曝光时间段内的速度。 因此，该方法和装置可以防止表面曝光和螺旋曝光中出现条纹不均匀。

公开(公告)号：US20030007816A1

公开(公告)日：2003-01-09

申请号：US10189191

申请日：2002-07-05

Inventor： Shuji Ishimaru ,  Kouji Ogino

IPC: G03G015/00

CPC classification number: H04N1/00806 ,  H04N1/00795 ,  H04N1/00822 ,  H04N1/1017 ,  H04N1/1026 ,  H04N1/1043 ,  H04N1/1048 ,  H04N1/1052 ,  H04N1/193 ,  H04N2201/02416 ,  H04N2201/0454 ,  H04N2201/04755 ,  H04N2201/04791

Abstract: An image reading apparatus is provided with an supply device for supplying an original on a supply tray; a transport device for transporting the original to a platen; a discharge device for discharging the original; an optical reading device for scanning the original placed on the platen; a drive device for moving the optical reading device at the first moving speed or the second moving speed; and a detection device for determining a type of image data as either the first type of data or the second type of data. A scan control device obtains and stores image data while scanning a document at the first moving speed. A switching control device switches the drive device to the second moving speed when the detecting device determines the image data read at the first moving speed to be the second type of data.

Abstract translation: 图像读取装置设置有供应装置，用于在供应盘上提供原稿; 用于将原稿输送到压板的输送装置; 用于放出原稿的放电装置; 用于扫描放置在压板上的原稿的光学读取装置; 用于以第一移动速度或第二移动速度移动光学读取装置的驱动装置; 以及用于将图像数据的类型确定为第一类型的数据或第二类型的数据的检测装置。 扫描控制装置在以第一移动速度扫描文档的同时获取并存储图像数据。 当检测装置确定以第一移动速度读取的图像数据为第二类型的数据时，开关控制装置将驱动装置切换到第二移动速度。

公开(公告)号：US20020093561A1

公开(公告)日：2002-07-18

申请号：US10046078

申请日：2002-01-16

Applicant: FUJI PHOTO FILM CO., LTD.

Inventor： Takao Ozaki ,  Atsushi Suganuma

IPC: B41J002/325

CPC classification number: H04N1/0678 ,  B41J19/202 ,  H04N1/047 ,  H04N1/06 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: An image recording apparatus records an image on a printing plate wound around a rotating drum with a light beam emitted from an exposure head. In the image recording apparatus, an actual drum rotational speed Nx is recognized, and the image is recorded on the printing plate in an accelerating period in which the actual drum rotational speed Nx is equal to or higher than a predetermined rotational speed, a constant-rotational-speed period, and a decelerating period. An exposure beam position, an exposure beam output, and an auxiliary scanning speed of the exposure head are corrected dependent on the peripheral speed of the drum in the accelerating period and the decelerating period.

Abstract translation: 图像记录装置利用从曝光头发射的光束将图像记录在卷绕在旋转滚筒上的印刷板上。 在图像记录装置中，识别出实际的滚筒转速Nx，并且在实际滚筒转速Nx等于或高于预定旋转速度的加速时段中将图像记录在印版上， 转速期间和减速期间。 曝光光束位置，曝光光束输出以及曝光头的辅助扫描速度根据加速期间和减速期间的鼓的圆周速度进行修正。

公开(公告)号：US06219463B1

公开(公告)日：2001-04-17

申请号：US09003585

申请日：1998-01-06

Applicant: Haruhiro Hyodo

Inventor： Haruhiro Hyodo

IPC: G06K932

CPC classification number: H04N1/0405 ,  G06K7/10722 ,  H04N1/0432 ,  H04N1/0458 ,  H04N1/0473 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/02416 ,  H04N2201/04703 ,  H04N2201/04715 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04755 ,  H04N2201/04791

Abstract: There is provided an image reading device capable of preventing disorder of an aspect ratio of an image even when a reading magnification ratio deviates from a set value due to a mechanical error and easily obtaining an accurate image. In this image reading device, a reference mark and a center mark of a line pattern of a reference pattern are projected on a CCD by a zoom lens, and an actual projection magnification ratio of the zoom lens is detected by use of addresses of pixels corresponding to a projection image. Then, a sub-scanning speed calculating section calculates a sub-scanning speed corresponding to the detected actual projection magnification ratio and drives a sub-scanning motor. Therefore, the sub-scanning speed corresponding to the actual projection magnification ratio is set regardless of the presence or absence of a magnification ratio error attributed to a mechanical error in a zooming stage on the lens side, thereby allowing an image accuracy to be guaranteed.

Abstract translation: 提供了一种图像读取装置，即使当读取倍率由于机械误差而偏离设定值并且容易获得准确的图像时，也能够防止图像的纵横比的混乱。 在该图像读取装置中，参考图案的线图案的基准标记和中心标记通过变焦透镜投影在CCD上，并且通过使用对应的像素的地址来检测变焦镜头的实际投影倍率 投影图像。 然后，副扫描速度计算部分计算与检测到的实际投影倍率相对应的副扫描速度并驱动副扫描马达。 因此，与实际的投影放大率相对应的副扫描速度被设定，而不管存在或不存在由于透镜侧的变焦级中的机械误差引起的放大率误差的存在或不存在，从而允许图像精度得到保证。

公开(公告)号：US6108107A

公开(公告)日：2000-08-22

申请号：US871889

申请日：1997-06-09

Applicant: Minoru Suzuki

Inventor： Minoru Suzuki

IPC: H04N1/03 ,  H04N1/113 ,  H04N1/193 ,  H04N3/08 ,  H04N5/225 ,  H04N1/40

CPC classification number: H04N3/08 ,  H04N1/03 ,  H04N5/2259 ,  H04N1/113 ,  H04N1/193 ,  H04N2201/02416

Abstract: A scanner scans a object using a one-dimensional image sensor via imaging lens. The imaging lens is supported by a lens barrel, which is moved in the direction of an optical axis of the lens for focusing. In order to ensure that the lens barrel does not incline with respect to the direction of the image sensor (i.e., the main-scanning direction), the lens barrel is biased to incline in the direction perpendicular to the image sensor.

Abstract translation: 扫描仪通过成像透镜使用一维图像传感器扫描物体。 成像透镜由透镜镜筒支撑，镜筒在透镜的光轴方向上移动以进行聚焦。 为了确保镜筒相对于图像传感器的方向（即，主扫描方向）不倾斜，镜筒被偏置成在与图像传感器垂直的方向上倾斜。

公开(公告)号：US3875587A

公开(公告)日：1975-04-01

申请号：US36180473

申请日：1973-05-18

Applicant: CROSFIELD ELECTRONICS LTD

Inventor： PUGSLEY PETER C

IPC: G03F3/08 ,  H04N1/053 ,  H04N1/06 ,  H04N1/203 ,  H04N1/207 ,  H04N1/50 ,  H04N1/22 ,  H04N1/46

CPC classification number: H04N1/0642 ,  H04N1/053 ,  H04N1/0657 ,  H04N1/0678 ,  H04N1/203 ,  H04N1/2036 ,  H04N1/207 ,  H04N1/508 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/02443 ,  H04N2201/0404 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04768 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794 ,  H04N2201/04798

Abstract: In a method and apparatus of image reproduction in which a light-sensitive surface is scanned by a light beam modulated by a reproducing head in accordance with a signal representing the densities of successive image elements to be reproduced, a component of the scanning motion is obtained by mounting the light-sensitive surface on the non-rotating surface of a cylinder and rotating a portion of the reproducing head within the cylinder so as to define a circular track on the output surface during one revolution of the rotatable portion of the reproducing head. A rotatable prism having a plurality of internal reflecting surfaces, such as a pentaprism, may reflect the light beam and may move axially within the cylinder to provide the other component of scanning motion. The pentaprism is advantageous during the presence of rotational vibration. Additionally, a plurality of light-sensitive surfaces may be placed sequentially on the surface of the cylinder to form respective color separations.

Abstract translation: 在通过根据表示要再现的连续图像元素的密度的信号通过由再现头调制的光束来扫描感光表面的图像再现的方法和装置中，获得扫描运动的分量 通过将感光表面安装在圆筒的非旋转表面上，并使圆筒内的再现头部的一部分旋转，以便在再现头的可旋转部分的一转期间在输出表面上限定圆形轨道。 具有多个内反射表面（例如五棱镜）的可旋转棱镜可以反射光束并且可以在圆柱体内轴向移动以提供扫描运动的另一分量。 五棱镜在旋转振动的存在期间是有利的。 此外，多个感光表面可以顺序地放置在圆柱体的表面上以形成相应的分色。

公开(公告)号：JP2014134781A

公开(公告)日：2014-07-24

申请号：JP2013251041

申请日：2013-12-04

Applicant: Canon Inc ,  キヤノン株式会社

Inventor： MUROTANI HIROSHI ,  NIWA KUNIHIRO ,  ASAMI JUNYA ,  NISHIGUCHI TETSUYA ,  KOBAYASHI HISAMICHI

IPC: G02B26/10 ,  B41J2/44 ,  G02B7/00 ,  H04N1/113

CPC classification number: H04N1/02481 ,  G02B26/123 ,  H04N1/113 ,  H04N2201/02416 ,  H04N2201/02435 ,  H04N2201/02481

Abstract: PROBLEM TO BE SOLVED: To restrict an increase in the size of the positioning member of a light source unit with respect to the direction of the rotation axis of the rotary polygon mirror.SOLUTION: An optical scanner comprises: first and second light source units, each having a light source; a rotary polygon mirror configured to deflect and scan a laser beam emitted from the light source of each of the first and second light source units; and a positioning member having a first abutment part on which the first light source unit abuts and a second abutment part on which the second light source unit abuts, and configured to position the first and second light source units. The first and second light source units are positioned by the positioning member such that they are arranged side by side in the direction of the rotation axis of the rotary polygon mirror. The positioning member is a single member provided between the first and second light source units with respect to the direction of the rotation axis.

Abstract translation: 要解决的问题：限制光源单元的定位构件相对于旋转多面镜的旋转轴线的方向的尺寸的增加。解决方案：光学扫描器包括：第一和第二光源单元， 每个都有一个光源; 配置为偏转和扫描从所述第一和第二光源单元中的每一个的光源发射的激光束的旋转多面镜; 以及定位构件，其具有第一光源单元抵接的第一抵接部和与第二光源单元抵接的第二抵接部，并配置成使第一和第二光源单元定位。 第一和第二光源单元由定位构件定位成使得它们沿旋转多面镜的旋转轴线的方向并排布置。 定位构件是相对于旋转轴线的方向设置在第一和第二光源单元之间的单个构件。

公开(公告)号：JP4875896B2

公开(公告)日：2012-02-15

申请号：JP2006003705

申请日：2006-01-11

Applicant: 株式会社リコー

Inventor： 泰正 富田

IPC: G02B26/10

CPC classification number: H04N1/1135 ,  H04N1/032 ,  H04N2201/02414 ,  H04N2201/02416 ,  H04N2201/02431

Abstract: An optical scanning unit includes a light source, a lens, a deflector, a lens holder, a support member, a force-generating member, and a force-transmitting member. The light source emits a light beam. The lens passes through the light beam. The deflector rotatably deflects the light beam coming from the lens. The lens holder, provided between the light source and the deflector, holds the lens. The support member has a first face faced to a vertically-downward direction, and extends in a direction from the light source to the deflector. The lens holder is movably supported by the first face of the support member. The force-generating member, provided to a second face of the support member, generates a force. The second face is opposite to the first face. The force-transmitting member transmits the force generated by the force-generating member to the lens holder to move the lens holder along the first face.

公开(公告)号：JP2011217136A

公开(公告)日：2011-10-27

申请号：JP2010083565

申请日：2010-03-31

Applicant: Brother Industries Ltd ,  ブラザー工業株式会社

Inventor： YAMAMOTO KEISUKE

IPC: H04N1/04 ,  G06T1/00 ,  H04N1/028 ,  H04N1/21

CPC classification number: H04N1/0473 ,  H04N1/00814 ,  H04N1/1013 ,  H04N1/12 ,  H04N1/193 ,  H04N1/32609 ,  H04N1/3263 ,  H04N1/32667 ,  H04N2201/0081 ,  H04N2201/02416 ,  H04N2201/03108 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04791

Abstract: PROBLEM TO BE SOLVED: To suppress deterioration in image quality of read image data due to interruption of a process even without making a line start signal synchronous with an encoder signal.SOLUTION: An image reading apparatus makes a line sensor execute a periodical reading operation by inputting a periodical line start signal, while conveys the line sensor at constant speed by feedback control which is based on a target position trajectory. Then, when constant speed conveyance of the line sensor is interrupted to invalidate the reading operation by shortage of spare of a buffer which temporarily stores the read image data, a line sensor position where the reading operation is invalidated based on the target position trajectory is specified as an interrupted position. In addition, conveyance control of the line sensor is started according to input of a line start signal, and prior to start of the conveyance control, a target position trajectory to be used is set as a target position trajectory where the line start signal is inputted when the line sensor arrives at an interrupted position.

Abstract translation: 要解决的问题：为了抑制由于处理中断而导致的读取图像数据的图像质量的劣化，即使不使编码器信号同步的线开始信号。图像读取装置使线传感器执行周期性读取操作， 输入定期行开始信号，同时通过基于目标位置轨迹的反馈控制传送线传感器恒定速度。 然后，当线路传感器的恒定速度传送被中断以使暂时存储读取的图像数据的缓冲器的备用件的备用的读取操作无效时，指定基于目标位置轨迹读取操作无效的行传感器位置 作为中断位置。 此外，线路传感器的输送控制根据行开始信号的输入开始，在开始输送控制之前，将要使用的目标位置轨迹设定为输入行开始信号的目标位置轨迹 当线传感器到达中断位置时。

公开(公告)号：JP4159813B2

公开(公告)日：2008-10-01

申请号：JP2002185257

申请日：2002-06-25

Applicant: シャープ株式会社

Inventor： 竜一 中島 ,  浩司 久保田 ,  佳彦 久軒 ,  靖雄 吉岡 ,  義隆 山中 ,  幸彦 杉本

IPC: B41J2/01 ,  B41J19/18 ,  G03G21/14 ,  H04N1/04

CPC classification number: H04N1/04 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/046 ,  H04N2201/04755 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: A printer is provided with a scanner mounted to a printer main body includes control for suppressing the scanning speed of the carriage during a reading operation of a document image by a scanner. With this structure, the printer can perform an image forming operation at maximum speed and the time required for forming an image can be reduced while suppressing a reading inferior resulting from the vibrations generated from the carriage by suppressing such vibrations.