公开(公告)号：US06710793B1

公开(公告)日：2004-03-23

申请号：US10305165

申请日：2002-11-27

Applicant: Koji Tanimoto ,  Kenichi Komiya ,  Daisuke Ishikawa ,  Koji Kawai ,  Jun Sakakibara

Inventor： Koji Tanimoto ,  Kenichi Komiya ,  Daisuke Ishikawa ,  Koji Kawai ,  Jun Sakakibara

IPC: B41J2435

CPC classification number: H04N1/047 ,  G02B26/123 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/04712 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04762 ,  H04N2201/04781 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: In an image forming apparatus such as a digital copying machine using a multi-beam optical system, a printing area can be set in the unit equal to or smaller than a clock for image formation by use of a delay pulse for each light beam and the exposure position in the light beam scanning direction (main scanning direction) is always precisely controlled by selecting an optimum set value while the actual light beam position is being checked by use of a sensor.

Abstract translation: 在诸如使用多光束光学系统的数字复印机的图像形成装置中，可以通过使用每个光束的延迟脉冲将打印区域设置为等于或小于用于图像形成的时钟的单位，并且 在通过使用传感器检查实际光束位置的同时通过选择最佳设定值来始终精确地控制光束扫描方向（主扫描方向）上的曝光位置。

公开(公告)号：US06680744B2

公开(公告)日：2004-01-20

申请号：US10096904

申请日：2002-03-14

Applicant: Sueo Ueno

Inventor： Sueo Ueno

IPC: B41J244

CPC classification number: B41J2/471 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: A laser scanner is adapted to cause a laser beam to scan in the main-scanning direction by deflecting the laser beam by means of a deflecting optical system. A horizontal synchronizing signal is obtained by detecting the laser beam by means of a photodetector. Forced emission of laser beam is started after a predetermined time period since the detection of the laser beam, which predetermined time period is variable as a function of the rotary speed of the deflector section. With this arrangement, a horizontal synchronizing signal can be reliably detected if the rotary speed of the deflecting operation system fluctuates.

Abstract translation: 激光扫描器适于使激光束通过偏转光学系统偏转激光束而在主扫描方向上扫描。 通过用光电检测器检测激光束来获得水平同步信号。 激光束的强制发射在从检测到激光束开始的预定时间段之后开始，该预定时间段作为偏转器部分的转速的函数而变化。 利用这种布置，如果偏转操作系统的旋转速度波动，则可以可靠地检测水平同步信号。

公开(公告)号：US06635864B2

公开(公告)日：2003-10-21

申请号：US09905277

申请日：2001-07-13

Applicant: B. Mark Hirst

Inventor： B. Mark Hirst

IPC: H01J314

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: A method for determining a scan line error for a scan line, wherein the scan line is produced from one of a plurality of facets of a rotating reflector of a scanning device. The method comprises the steps of (a) determining a difference between a time of an occurrence of a point in a scan line produced from a first facet and a time of an occurrence of a point in a scan line produced from a second facet, and (b) determining from the difference, a scan line error for the scan line produced from the first facet.

Abstract translation: 一种用于确定扫描线的扫描线误差的方法，其中扫描线由扫描装置的旋转反射器的多个面中的一个产生。 该方法包括以下步骤：（a）确定从第一面产生的扫描线中的点的发生时间与从第二面产生的扫描线中的点的出现时间之间的差异，以及 （b）根据该差异确定从第一面产生的扫描线的扫描线误差。

公开(公告)号：US20030058420A1

公开(公告)日：2003-03-27

申请号：US10251821

申请日：2002-09-23

Applicant: FUJI PHOTO FILM CO., LTD.

Inventor： Masahiro Ohba ,  Takao Ozaki

IPC: G03B027/58 ,  G03B027/62

CPC classification number: H04N1/00018 ,  G03F7/24 ,  H04N1/00034 ,  H04N1/0005 ,  H04N1/00082 ,  H04N1/047 ,  H04N1/06 ,  H04N1/0678 ,  H04N2201/02439 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: An image recording device, wherein deviation of an image-recording start position, which results from a difference in the amount of expansion and contraction based on temperature changes between a printing plate precursor, a rotating support, a mechanism for moving a recording head, and the like, is corrected so that an image can be recorded at a proper position. Temperature 1 near the rotating support is obtained by a first temperature sensor, and temperature 2 near the mechanism is obtained by a second temperature sensor. Then, an amount for correcting an image-recording start position is obtained from a correction table based on the temperatures 1 and 2 and on a size of the printing plate precursor, and the number of drive pulses for correction corresponding to the obtained amount of correction is outputted to a drive motor of the mechanism.

Abstract translation: 一种图像记录装置，其中基于印刷版前体，旋转支撑件，用于移动记录头的机构的温度变化引起的膨胀和收缩量的差异导致的图像记录开始位置的偏离，以及 被校正，使得可以在适当的位置记录图像。 通过第一温度传感器获得靠近旋转支撑件的温度1，并且通过第二温度传感器获得机构附近的温度2。 然后，根据温度1和2以及印版前体的尺寸和与所获得的校正量相对应的用于校正的驱动脉冲数，从校正表中获得用于校正图像记录开始位置的量 被输出到机构的驱动电动机。

公开(公告)号：US06529222B1

公开(公告)日：2003-03-04

申请号：US09431258

申请日：1999-11-01

Applicant: Seung-deog An

Inventor： Seung-deog An

IPC: B41J2385

CPC classification number: H04N1/053 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04741 ,  H04N2201/04744 ,  H04N2201/04786 ,  H04N2201/04794

Abstract: An optical scanning system for a printer. The optical scanning system includes: an optical scanning unit installed to scan light onto a circulating photoreceptor web; a photodetector installed for receiving scanning light emitted from the optical scanning unit; a defective edge area detector for comparing pulse signals output in sequence from the photodetector to determine whether the edge of the photoreceptor web has a defect, and outputting an edge defect signal if a defective area is detected; an estimated pulse width calculator for outputting a predetermined estimated pulse width, and updating the estimated pulse width for the next line image scanning using the signal from the defective edge area detector, the predetermined estimated pulse width, and the pulse signal from the photodetector; a line scanning synchronous signal generator for generating a line scanning synchronous signal in synchronicity with the predetermined estimated pulse width; and an optical scanning unit driver for driving the optical scanning unit such that the optical scanning unit emits image information light onto the photoreceptor web synchronized with the line scanning synchronous signal. By the optical scanning system and a method for adjusting the start point of image scanning, errors in writing an image can be suppressed, which are caused by defects at the edge of the photoreceptor web.

Abstract translation: 一种用于打印机的光学扫描系统。 光学扫描系统包括：光学扫描单元，被安装成将光扫描到循环感光体网上; 安装用于接收从光学扫描单元发射的扫描光的光电检测器; 用于比较从光电检测器顺序输出的脉冲信号以确定感光体网的边缘是否具有缺陷的缺陷边缘区域检测器，以及如果检测到缺陷区域则输出边缘缺陷信号; 用于输出预定的估计脉冲宽度的估计脉冲宽度计算器，以及使用来自缺陷边缘区域检测器的信号，预定估计脉冲宽度和来自光电检测器的脉冲信号来更新用于下一行图像扫描的估计脉冲宽度; 线扫描同步信号发生器，用于与预定的估计脉冲宽度同步地产生行扫描同步信号; 以及用于驱动光学扫描单元的光学扫描单元驱动器，使得光学扫描单元将图像信息光发射到与行扫描同步信号同步的感光体网上。 通过光学扫描系统和调整图像扫描起点的方法，可以抑制由感光体网边缘的缺陷引起的图像写入误差。

公开(公告)号：US06527182B1

公开(公告)日：2003-03-04

申请号：US09560353

申请日：2000-04-28

Applicant: Hirotaka Chiba ,  Tsugio Noda

Inventor： Hirotaka Chiba ,  Tsugio Noda

IPC: G06K710

CPC classification number: H04N1/3263 ,  H04N1/047 ,  H04N1/107 ,  H04N1/32678 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04734 ,  H04N2201/04787 ,  H04N2201/04794

Abstract: An image reading apparatus comprises an image reading section which optically reads one line of an image on a paper at a specific time interval and inputs the acquired image data to an image signal processing section which converts the image data into a binary image data. An amount of movement detection section is provided which outputs a signal to an image data generation section when the image reading section moves by one line. When such a signal is received more than one time during one time interval, the image data generation section generates a binary image data corresponding to the number of lines whose data is not available from the binary image data for a line acquired during that time interval.

Abstract translation: 图像读取装置包括图像读取部，其以特定时间间隔光学地读取纸张上的一行图像，并将获取的图像数据输入到将图像数据转换为二值图像数据的图像信号处理部。 提供了一种移动量检测部分，当图像读取部分移动一行时，其将信号输出到图像数据生成部分。 当在一个时间间隔期间接收到这样的信号多于一次时，图像数据生成部分生成对应于在该时间间隔期间获取的线的二进制图像数据的数据不可用的行数的二进制图像数据。

公开(公告)号：US20030030686A1

公开(公告)日：2003-02-13

申请号：US10247294

申请日：2002-09-20

Applicant: Canon Kabushiki Kaisha

Inventor： Junkichi Abe ,  Hiroyuki Miyake

IPC: B41J029/38

CPC classification number: B41J15/165 ,  B41J3/4078 ,  G06K15/02 ,  H04N1/047 ,  H04N1/12 ,  H04N1/128 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0468 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04787 ,  H04N2201/04794

Abstract: The invention provides an image forming method and apparatus capable of forming an image with a desired shape at a correct position on a recording medium having expansion and contraction properties. Boundary lines formed on the recording medium being conveyed are detected by a sensor. Distortion of the recording medium is evaluated on the basis of the detected boundary lines. Image data is corrected in accordance with the result of the evaluation and an image is formed in accordance with the corrected image data. In the above process, image data within the respective areas surrounded by the boundary lines is deformed such that the image is printed at a correct location even when the recording medium has distortion due to expansion/contraction.

公开(公告)号：US06512605B1

公开(公告)日：2003-01-28

申请号：US09365721

申请日：1999-08-03

Applicant: Tatsumi Watanabe ,  Yasuhiro Kuwahara ,  Akio Kojima

Inventor： Tatsumi Watanabe ,  Yasuhiro Kuwahara ,  Akio Kojima

IPC: H04N146

CPC classification number: H04N1/486 ,  H04N1/0473 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04743 ,  H04N2201/04787 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: An inexpensive image reading apparatus which does not need a delay buffer and which permits image inputting with an image sensor array with reduced color dislocation on character edge etc. Color images are inputted in this process: Line reading circuit 102 reads three color data simultaneously. On the basis of the top and end points of a line of green data obtained by encoders and scanned position detection circuit, offset size deriving circuit 107 works out the top and end scanned positions for the data on the other colors, that is, red and blue. From the top to the end scanned positions for the respective colors, the mapping coordinates deriving circuit 108 works out the coordinates of the picture elements for the read color data. Mapping circuit 109 maps the respective color data on the image memory 110 at the positions corresponding to the coordinates obtained by the mapping coordinates deriving circuit 108.

Abstract translation: 不需要延迟缓冲器的便宜的图像读取装置，其允许使用字符边缘等处具有减少的颜色位错的图像传感器阵列进行图像输入。在该处理中输入彩色图像：行读取电路102同时读取三个颜色数据。 基于由编码器和扫描位置检测电路获得的一行绿色数据的顶点和终点，偏移尺寸导出电路107对于其他颜色的数据的顶部和末端扫描位置，即红色和 蓝色。 从相应颜色的上到下扫描位置，映射坐标导出电路108对读出的颜色数据的图像元素的坐标进行计算。 映射电路109将对应于由映射坐标导出电路108获得的坐标的位置映射到图像存储器110上的各个颜色数据。

公开(公告)号：US06507416B1

公开(公告)日：2003-01-14

申请号：US09299088

申请日：1999-04-26

Applicant: Ricke Tang

Inventor： Ricke Tang

IPC: H04N104

CPC classification number: H04N1/0287 ,  H04N1/03 ,  H04N1/0303 ,  H04N1/0305 ,  H04N1/1017 ,  H04N2201/02408 ,  H04N2201/02416 ,  H04N2201/02433 ,  H04N2201/02435 ,  H04N2201/02439 ,  H04N2201/04794

Abstract: An adjustable chassis for variable brightness for a scanner includes a light source, a reflection means, a lens, a charge coupled device and a brightness adjuster. The brightness adjuster may be a reflection mirror adjuster which can change the angle of a first reflection mirror, or a lamp holder adjuster which can change the light emitting angle toward the scanning document, or a light source adjuster which can change the distance between the light source and the scanning document so that brightness on the document may be obtained at an optimum degree to achieve better scanning quality.

Abstract translation: 用于扫描器的可变亮度的可调底盘包括光源，反射装置，透镜，电荷耦合装置和亮度调节器。 亮度调节器可以是可以改变可以改变朝向扫描原稿的发光角度的第一反射镜或灯座调节器的角度的反射镜调节器，或者可以改变光的距离的光源调节器 源和扫描文档，使得可以以最佳程度获得文档上的亮度以实现更好的扫描质量。

公开(公告)号：US06493019B1

公开(公告)日：2002-12-10

申请号：US09489945

申请日：2000-01-24

Applicant: Hideaki Hirasawa

Inventor： Hideaki Hirasawa

IPC: B41J247

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04781 ,  H04N2201/04794

Abstract: An image forming apparatus, includes an image forming unit including an image bearing member, a beam generating unit for generating a plurality of light beams and an optical scan system for scanning the image bearing member with the plurality of light beams to write an image, a beam detecting unit for detecting the plurality of light beams scanning the image bearing member at predetermined positions and obtaining a plurality of beam detection signals, a clock generating unit for generating a single clock signal, a controller for controlling the frequency of the single clock signal and a synchronization circuit for controlling the phase of the single clock signal in accordance with the plurality of beam detection signals obtained by the beam detecting unit, and generating a plurality of control clocks, wherein the plurality of beams are generated in accordance with the plurality of control clocks.

Abstract translation: 一种图像形成装置，包括：图像形成单元，包括图像承载部件;用于产生多个光束的光束产生单元;以及用于利用多个光束扫描图像承载部件以写入图像的光学扫描系统; 光束检测单元，用于检测在预定位置扫描图像承载部件的多个光束并获得多个光束检测信号;时钟产生单元，用于产生单个时钟信号;控制器，用于控制单个时钟信号的频率;以及 同步电路，用于根据由波束检测单元获得的多个波束检测信号来控制单个时钟信号的相位，并产生多个控制时钟，其中根据多个控制产生多个波束 时钟。