公开(公告)号：US08040577B2

公开(公告)日：2011-10-18

申请号：US11934217

申请日：2007-11-02

Applicant: Shigeki Akiyama

Inventor： Shigeki Akiyama

IPC: H04N1/04

CPC classification number: H04N1/047 ,  H04N1/0464 ,  H04N1/1017 ,  H04N1/12 ,  H04N1/193 ,  H04N1/32448 ,  H04N2201/02416 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: In an image reading apparatus, a retreat control device moves a conveyance target through a conveyance mechanism, when a stop operation is performed by a stop control device, in an opposite direction to an image reading direction to a position further from a restart reference position set by a position setting unit. A reading control device again moves the conveyance target, which has been moved by the retreat control device, at a constant speed in the image reading direction under a predetermined condition; inputs a line start signal to a reading unit when an offset time set by a time setting unit has elapsed from a time point when the conveyance target reaches the restart reference position; and periodically inputs a line start signal to thereby cause the reading unit to perform a reading operation from a point; where the reading unit is located when the offset time has elapsed.

Abstract translation: 在图像读取装置中，退避控制装置在通过停止控制装置执行停止操作时沿与图像读取方向相反的方向通过输送机构移动输送目标到远离重新启动基准位置组的位置 通过位置设定单元。 读取控制装置在预定条件下，在图像读取方向上以恒定的速度再次移动由退避控制装置移动的输送目标; 当从传送目标到达重新启动基准位置的时间点起经过了由时间设定单元设定的偏移时间时，将行开始信号输入到读取单元; 并且周期性地输入行开始信号，从而使读取单元从一点执行读取操作; 当偏移时间过去时读取单元位于哪里。

公开(公告)号：US06882357B2

公开(公告)日：2005-04-19

申请号：US10094974

申请日：2002-03-12

Applicant: Atsushi Suganuma

Inventor： Atsushi Suganuma

IPC: B41J19/20 ,  H04N1/047 ,  H04N1/06 ,  B41J2/435

CPC classification number: H04N1/0678 ,  B41J19/202 ,  H04N1/047 ,  H04N1/06 ,  H04N2201/02443 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04756 ,  H04N2201/04772 ,  H04N2201/04789 ,  H04N2201/04798

Abstract: An image is accurately recorded by a light beam on a PS plate wound on a drum which is rotating at a constant speed. A rotary encoder detects information of a recording position in a main scanning direction by the light beam that is emitted from an optical unit to the PS plate. Based on the detected information, a PLL circuit of a recording synchronizing signal generating unit generates an original clock. Pulses of the original clock are counted by a decimating counter, which outputs a decimating instruction to decimate a pulse from the original clock each time the count reaches a preset count. Based on the decimating instruction, a pulse is decimated from the original clock, and a decimated clock is frequency-divided at a fixed frequency-dividing ratio by a frequency divider, which outputs a pixel clock for recording the image. Since the frequency of the pixel clock is varied by decimating the original clock based on the preset count, the image can accurately be recorded on the PS plate by determining in advance the preset count depending on the positional relationship between the PS plate and the optical unit.

Abstract translation: 通过光束将图像精确地记录在缠绕在以恒定速度旋转的滚筒上的PS板上。 旋转编码器通过从光学单元发射到PS板的光束来检测在主扫描方向上的记录位置的信息。 基于检测到的信息，记录同步信号生成单元的PLL电路产生原始时钟。 原始时钟的脉冲由抽取计数器计数，该计数器在每次计数达到预设计数时输出抽取指令以从原始时钟抽取脉冲。 基于抽取指令，从原始时钟脉冲被抽取，并且抽取的时钟以分频器以固定的分频比进行分频，分频器输出用于记录图像的像素时钟。 由于通过基于预设计数来抽取原始时钟来改变像素时钟的频率，所以可以通过根据PS板和光学单元之间的位置关系预先确定预设计数来将图像准确地记录在PS板上 。

公开(公告)号：US06788438B2

公开(公告)日：2004-09-07

申请号：US09819684

申请日：2001-03-29

Applicant: Masayoshi Takahashi ,  Shinobu Satonaka ,  Kensuke Fujihara

Inventor： Masayoshi Takahashi ,  Shinobu Satonaka ,  Kensuke Fujihara

IPC: H04N140

CPC classification number: H04N1/00806 ,  H04N1/00795 ,  H04N1/00822 ,  H04N1/047 ,  H04N1/193 ,  H04N2201/03108 ,  H04N2201/04756 ,  H04N2201/04768 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: An image reading device including an image sensor for optically reading a document and outputting an electric signal, a period control circuit for controlling the period of a horizontal synchronizing signal in order to change a time period during which charge is stored in the image sensor, and a scanning speed control circuit for controlling the scanning speed of the document to be a speed conforming to the period of the horizontal synchronizing signal. The horizontal synchronizing signal and the scanning speed are variably set to values corresponding to an image reading mode, for example.

Abstract translation: 一种图像读取装置，包括用于光学读取文档并输出电信号的图像传感器，用于控制水平同步信号的周期的周期控制电路，以便改变在图像传感器中存储电荷的时间段;以及 扫描速度控制电路，用于将文件的扫描速度控制为与水平同步信号的周期一致的速度。 例如，水平同步信号和扫描速度被可变地设置为对应于图像读取模式的值。

公开(公告)号：US06667756B2

公开(公告)日：2003-12-23

申请号：US09682379

申请日：2001-08-27

Applicant: Brian R. Conrow ,  David M. Kerxhalli

Inventor： Brian R. Conrow ,  David M. Kerxhalli

IPC: B41J2435

CPC classification number: H04N1/4095 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/00092 ,  H04N1/047 ,  H04N1/12 ,  H04N2201/03108 ,  H04N2201/04717 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04756 ,  H04N2201/04768 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: The relationship between first and second side images is evaluated to determine how the position of the paper and/or the size and arrangement of an image can be manipulated to compensate for paper shrinkage caused by fusing. Show through is reduced by performing setup to adjust a pixel clock frequency and/or a photoreceptor speed, determining a residual magnification error, determining margin shifts to compensate for the residual magnification error, and applying the margin shifts. Paper shrink effects on registration can be compensated for using determinations made during a typical printer setup. Show through errors can be reduced without using a paper conditioner to pre-shrink or re-wet the paper. In simplex and duplex printing, the show through errors worsen as the image moves away from the registration edge. Using information obtained during setup, a margin shift is determined that results in a significant reduction in the maximum show through for each image.

Abstract translation: 评估第一和第二侧面图像之间的关系，以确定如何操纵纸张的位置和/或图像的尺寸和布置以补偿由熔融引起的纸张收缩。 通过执行设置来调整像素时钟频率和/或感光体速度，确定剩余倍率误差，确定边缘偏移以补偿残余放大误差并应用边缘偏移来减少显示。 可以通过在典型打印机设置期间进行的确定来补偿注册时的纸张收缩效果。 无需使用纸张调节器对纸张进行预收缩或再湿润即可显示错误。 在单面和双面打印中，当图像从注册边缘移开时，显示错误会恶化。 使用在设置期间获得的信息，确定了导致每个图像的最大显示的显着减少的边距偏移。

公开(公告)号：US06570671B1

公开(公告)日：2003-05-27

申请号：US09406691

申请日：1999-09-27

Applicant: Jun Yamaguchi ,  Toshihiko Otsubo ,  Michio Kawase ,  Kazuyoshi Suzuki ,  Takahiro Watanabe ,  Tetsuro Fukusaka

Inventor： Jun Yamaguchi ,  Toshihiko Otsubo ,  Michio Kawase ,  Kazuyoshi Suzuki ,  Takahiro Watanabe ,  Tetsuro Fukusaka

IPC: G06F1300

CPC classification number: H04N1/0414 ,  G06K15/1247 ,  H04N1/0402 ,  H04N1/0443 ,  H04N1/12 ,  H04N1/193 ,  H04N1/40025 ,  H04N1/4092 ,  H04N2201/03108 ,  H04N2201/04756 ,  H04N2201/04774 ,  H04N2201/04791

Abstract: An image forming apparatus has a recording element array including plural recording elements, an image forming section for causing a relative movement between the recording element array and a recording medium, thereby to form an image, and a drive section for driving the recording element array based on image data. A duty control unit varies the recording duty of the recording elements according to the relative movement speed between the recording element array and the recording medium. In another version, an image forming apparatus has a recording element array including plural recording elements, an image forming unit that effects a relative movement between the recording element array and a recording medium, memory for storing image data, a drive unit for driving the recording element array based on the image data read from the memory and an inhibitor for selectively inhibiting the recording operation by the image read from the memory, according to the relative movement speed between the recording element array and the recording medium. In yet another version, an image forming apparatus has a recording element array including plural recording elements, an image forming unit for causing a relative movement between the recording element array and a recording medium, a smoothing unit for applying a smoothing process to the image data, according to the relative movement speed between the recording element array and the recording medium and drive means for driving the recording element array, based on the image data subjected to the smoothing process by the smoothing unit.

Abstract translation: 一种图像形成装置具有包括多个记录元件的记录元件阵列，用于使记录元件阵列与记录介质之间相对移动从而形成图像的图像形成部件，以及用于驱动记录元件阵列的驱动部件 对图像数据。 占空比控制单元根据记录元件阵列和记录介质之间的相对移动速度改变记录元件的记录占空比。 在另一个版本中，图像形成装置具有包括多个记录元件的记录元件阵列，实现记录元件阵列和记录介质之间的相对移动的图像形成单元，用于存储图像数据的存储器，用于驱动记录的驱动单元 基于从存储器读取的图像数据的单元阵列和抑制器，用于根据记录元件阵列和记录介质之间的相对移动速度选择性地禁止由存储器读取的图像的记录操作。 在另一个版本中，图像形成装置具有包括多个记录元件的记录元件阵列，用于在记录元件阵列和记录介质之间进行相对移动的图像形成单元，用于对图像数据应用平滑处理的平滑单元 根据记录元件阵列和记录介质之间的相对移动速度和驱动记录元件阵列的驱动装置，基于经过平滑处理的平滑处理的图像数据。

公开(公告)号：US06570598B1

公开(公告)日：2003-05-27

申请号：US10121199

申请日：2002-04-12

Applicant: Gregory Lawrence Ream ,  David Anthony Schneider

Inventor： Gregory Lawrence Ream ,  David Anthony Schneider

IPC: G03G1501

CPC classification number: H04N1/047 ,  B41J2/471 ,  G03G2215/0119 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04749 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: An electrophotographic image forming apparatus has defined therein a longitudinal or process direction, and includes plural photoconductive drums, each having an image forming surface. Multiple printhead units are provided for generating image information bearing laser beams. Each printhead unit includes optics for scanning the laser beam to form a plurality of scan lines extending across the corresponding photoconductive drum in a transverse scan direction which traverses the process direction. Registration of a scan line from one printhead with a corresponding scan line from another printhead in the process direction is achieved by adjusting the time required to translate one of the scan lines from a location where it is electrostatically formed to a location where it is transferred to an image receiving medium. Adjustment of the translation time may be achieved by modifying the rotational speed of the associated drum. Printhead optics may include rotatable polygonal prisms having plane reflective surfaces which are started in a random phase relationship. Control of the drum rotational speeds is also effective to achieve a predetermined apparent scanning phase relationship among the prisms.

Abstract translation: 电子照相图像形成装置在其中限定了纵向或加工方向，并且包括多个感光鼓，每个具有图像形成表面。 提供多个打印头单元用于产生承载激光束的图像信息。 每个打印头单元包括用于扫描激光束以形成跨过对应的感光鼓的横扫扫描方向的多条扫描线的光学器件。 通过调整将扫描线从静电形成的位置转移到其被转移到的位置所需的时间来实现在扫描线从一个打印头与来自另一打印头的处理方向上的相应扫描线的对准 图像接收介质。 可以通过修改关联的滚筒的转速来实现平移时间的调节。 打印头光学元件可以包括具有以随机相位关系启动的平面反射表面的可旋转多边形棱镜。 鼓旋转速度的控制对于实现棱镜之间的预定的视在扫描相位关系也是有效的。

公开(公告)号：US20020101502A1

公开(公告)日：2002-08-01

申请号：US10094974

申请日：2002-03-12

Applicant: FUJI PHOTO FILM CO., LTD.

Inventor： Atsushi Suganuma

IPC: B41J002/435 ,  B41J002/47

CPC classification number: H04N1/0678 ,  B41J19/202 ,  H04N1/047 ,  H04N1/06 ,  H04N2201/02443 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04756 ,  H04N2201/04772 ,  H04N2201/04789 ,  H04N2201/04798

Abstract: An image is accurately recorded by a light beam on a PS plate wound on a drum which is rotating at a constant speed. A rotary encoder detects information of a recording position in a main scanning direction by the light beam that is emitted from an optical unit to the PS plate. Based on the detected information, a PLL circuit of a recording synchronizing signal generating unit generates an original clock. Pulses of the original clock are counted by a decimating counter, which outputs a decimating instruction to decimate a pulse from the original clock each time the count reaches a preset count. Based on the decimating instruction, a pulse is decimated from the original clock, and a decimated clock is frequency-divided at a fixed frequency-dividing ratio by a frequency divider, which outputs a pixel clock for recording the image. Since the frequency of the pixel clock is varied by decimating the original clock based on the preset count, the image can accurately be recorded on the PS plate by determining in advance the preset count depending on the positional relationship between the PS plate and the optical unit.

Abstract translation: 通过光束将图像精确地记录在缠绕在以恒定速度旋转的滚筒上的PS板上。 旋转编码器通过从光学单元发射到PS板的光束来检测在主扫描方向上的记录位置的信息。 基于检测到的信息，记录同步信号生成单元的PLL电路产生原始时钟。 原始时钟的脉冲由抽取计数器计数，该计数器在每次计数达到预设计数时输出抽取指令以从原始时钟抽取脉冲。 基于抽取指令，从原始时钟脉冲被抽取，并且抽取的时钟以分频器以固定的分频比进行分频，分频器输出用于记录图像的像素时钟。 由于通过基于预设计数来抽取原始时钟来改变像素时钟的频率，所以可以通过根据PS板和光学单元之间的位置关系预先确定预设计数来将图像准确地记录在PS板上 。

公开(公告)号：US06307579B1

公开(公告)日：2001-10-23

申请号：US09519587

申请日：2000-03-06

Applicant: Akihiko Kida

Inventor： Akihiko Kida

IPC: B41J2385

CPC classification number: H04N1/00013 ,  G02B26/122 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/0009 ,  H04N1/047 ,  H04N1/1017 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02416 ,  H04N2201/03108 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: A first polygonal motor correction value and a first drum motor correction value are provided to the polygonal motor and the photosensitive drum motor so that an image formed by a printer unit has a 100% magnification on the basis of data provided from a reference pattern generating unit which generates an ideal pattern data having no magnification error. Next, a document, on which a predetermined pattern is printed, is scanned by a scanner unit, and then, a second polygonal motor correction value and a carriage motor correction value are provided to the polygonal motor and the carriage motor so that an image printed using the printer unit has a 100% magnification. In the case of forming an image by the printer unit in a state that a main scanning/feed direction of the scanned image is inverted, an image is formed using the first polygonal motor correction value, the carriage motor correction value and a second drum motor correction value calculated from the first and second polygonal motor correction values and the first drum motor correction value.

Abstract translation: 第一多边形电动机校正值和第一鼓电动机校正值被提供​​给多边形电动机和感光鼓电动机，使得由打印机单元形成的图像基于从参考图案生成单元提供的数据具有100％的放大倍率 其产生没有放大误差的理想图案数据。 接下来，通过扫描器单元扫描其上印有预定图案的文档，然后向多边形马达和滑架马达提供第二多边形马达校正值和托架马达校正值，使得打印的图像 使用打印机单元放大100％。 在扫描图像的主扫描/馈送方向反转的状态下，通过打印机单元形成图像的情况下，使用第一多边形电动机校正值，滑架电动机校正值和第二鼓电动机形成图像 由第一和第二多边形电动机校正值和第一鼓电动机校正值计算的校正值。

公开(公告)号：US20010012135A1

公开(公告)日：2001-08-09

申请号：US09773584

申请日：2001-02-02

Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHA

Inventor： Yuichi Kurosawa

IPC: H04N001/04

CPC classification number: H04N1/0414 ,  H04N1/0402 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/10 ,  H04N1/1008 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/02416 ,  H04N2201/03108 ,  H04N2201/0408 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04791

Abstract: A film scanner performs a main-scan of a film by an imaging device and performs a sub-scan of the imaging device so as to enable scanning at any resolution using a simple configuration. The scanning mechanism, for the sub-scan of the film with respect to the imaging device, has a transport table for supporting the film held by a film holder and transporting it in a sub-scan direction and a transport mechanism for moving the transport table in the sub-scan direction. The source of the drive power of the transport mechanism is a scan motor (stepper motor) driven by a pulse signal output from a motor drive circuit. The motor drive circuit is configured to enable micro-stepping of the scan motor.

Abstract translation: 胶片扫描仪通过成像装置执行胶片的主扫描并执行成像装置的副扫描，以便能够以任何分辨率使用简单的配置进行扫描。 用于相对于成像装置的薄膜副扫描的扫描机构具有用于支撑由胶片保持器保持并且沿副扫描方向传送的胶片的传送台和用于移动传送台的传送机构 在副扫描方向。 传送机构的驱动力的来源是由从电动机驱动电路输出的脉冲信号驱动的扫描电动机（步进电动机）。 电动机驱动电路构成为能够进行扫描电动机的微步进。

公开(公告)号：US08384752B2

公开(公告)日：2013-02-26

申请号：US12076200

申请日：2008-03-14

Applicant: Yasumasa Tomita

Inventor： Yasumasa Tomita

IPC: B41J2/435

CPC classification number: B41J2/473 ,  G02B26/125 ,  G02B26/127 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082 ,  H04N2201/03108 ,  H04N2201/04755 ,  H04N2201/04756

Abstract: An optical scanning unit used in an image forming apparatus having a latent image carrier includes a light emitter, a rotary deflector, an inclination adjustment unit, and a controller. The light emitter emits a light beam. The rotary deflector deflects and scans the light beam onto a surface of the latent image carrier. The inclination adjustment unit adjusts an inclination of a scan line corresponding to the light beam relative to a reference scan line on the latent image carrier. The controller changes at least one of a linear velocity of the latent image carrier and a rotation speed of the rotary deflector so as to change a ratio between the linear velocity of the latent image carrier and a scan speed of the light beam, and controls the inclination adjustment unit based on the ratio to keep the scan line from inclining relative to the reference scan line.

Abstract translation: 在具有潜像载体的图像形成装置中使用的光学扫描单元包括光发射器，旋转偏转器，倾斜调节单元和控制器。 光发射器发射光束。 旋转偏转器将光束偏转并扫描到潜像载体的表面上。 倾斜调整单元相对于潜像载体上的基准扫描线调整与光束对应的扫描线的倾斜度。 控制器改变潜像载体的线速度和旋转偏转器的旋转速度中的至少一个，以便改变潜像载体的线速度和光束的扫描速度之间的比率，并且控制 倾斜调整单元，其基于比例，以使扫描线相对于参考扫描线倾斜。