公开(公告)号：US07548326B2

公开(公告)日：2009-06-16

申请号：US11085017

申请日：2005-03-21

Applicant: Kimitake Fukushima

Inventor： Kimitake Fukushima

IPC: G06K15/00

CPC classification number: H04N1/3878 ,  H04N1/00002 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00076 ,  H04N1/00087 ,  H04N1/0009 ,  H04N1/047 ,  H04N2201/04756 ,  H04N2201/04758 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A printer processor prints out two sheets of test prints by printing a test pattern on two recording sheets of different lengths. The test pattern consists of eight straight-linear lines that are parallel to a main scan direction or a sub scan direction of an exposure section. Dimensions of designated portions of the test pattern are measured on each of the test prints, to detect skew characteristics of the recording sheets, deviations of print starting positions in the main and sub scan directions and fluctuations in transport speed of the recording sheets. Based on the detected values, a skew correcting section, the exposure section and a conveyer device for the recording sheets are controlled to correct skew of the recording sheets, the print starting positions in the main and sub scan directions and the transport speed.

Abstract translation: 打印机处理器通过在两张不同长度的记录纸上打印测试图案来打印出两张测试图。 测试图案由平行于曝光部分的主扫描方向或副扫描方向的8条直线线构成。 在每个测试印刷品上测量测试图案的指定部分的尺寸，以检测记录纸张的偏斜特性，主扫描和副扫描方向上的打印开始位置的偏差以及记录纸张的传送速度的波动。 基于检测值，控制偏斜校正部分，曝光部分和用于记录片材的传送装置，以纠正记录片材的偏斜，主扫描和副扫描方向上的打印开始位置以及传送速度。

公开(公告)号：US20090039594A1

公开(公告)日：2009-02-12

申请号：US12187369

申请日：2008-08-06

Applicant: Kuniaki Sato ,  Masaya Shimmachi ,  Haruo Ishizuka

Inventor： Kuniaki Sato ,  Masaya Shimmachi ,  Haruo Ishizuka

IPC: B65H7/02

CPC classification number: H04N1/17 ,  H04N1/0473 ,  H04N1/121 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04737 ,  H04N2201/04756 ,  H04N2201/04794

Abstract: An image reading apparatus includes a sheet feeding unit configured to sequentially feed a plurality of documents loaded on a document positioning plate, a reading sensor arranged in a conveyance path configured to read a document of the plurality of documents fed by the sheet feeding unit, an acquisition unit configured to acquire an interval of the document between a trailing edge of a preceding document and a leading edge of a next document conveyed through the conveyance path, and a reading unit configured to execute a first reading mode using the reading sensor to read the document conveyed at a first conveyance speed, and a second reading mode using the reading sensor to read the document conveyed at a second conveyance speed that is lower than the first conveyance speed, wherein the reading unit executes the second reading mode after the first reading mode when the interval of the document is less than a predetermined interval.

Abstract translation: 图像读取装置包括：片材进给单元，被配置为顺序地馈送装载在原稿定位板上的多个原稿;布置在输送路径中的读取传感器，该输送路径被配置为读取由送纸单元馈送的多个原稿的原稿; 获取单元，被配置为获取在前一个文档的后沿和通过传送路径传送的下一个文档的前沿之间的文档的间隔;以及读取单元，被配置为使用读取传感器执行第一读取模式以读取 以及第二读取模式，使用读取传感器读取以比第一传送速度低的第二传送速度传送的原稿，其中读取单元在第一读取模式之后执行第二读取模式 当文档的间隔小于预定间隔时。

公开(公告)号：US20060291010A1

公开(公告)日：2006-12-28

申请号：US11512510

申请日：2006-08-29

Applicant: Kuo-Jeng Wang

Inventor： Kuo-Jeng Wang

IPC: H04N1/04

CPC classification number: H04N1/32448 ,  H04N1/0473 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/04756 ,  H04N2201/04794 ,  H04N2201/329

Abstract: A control device and a method for controlling scanning speed of a scanner. The control device includes a decision device and a driving device. The decision device further includes an image buffer, an up-down counter and a comparator. The decision device receives the input image data and utilizes the up-down counter to compute data access volume inside the image buffer. The comparator decides whether to increase or decrease the scanning speed according to the data access volume and also outputs decision data to the driving device.

公开(公告)号：US20060197997A1

公开(公告)日：2006-09-07

申请号：US11362026

申请日：2006-02-27

Applicant: Haruhisa Oshida ,  Takeshi Aoyama ,  Shoko Magata ,  Ayumu Murakami ,  Yuichi Yamamoto ,  Takayuki Suga

Inventor： Haruhisa Oshida ,  Takeshi Aoyama ,  Shoko Magata ,  Ayumu Murakami ,  Yuichi Yamamoto ,  Takayuki Suga

IPC: H04N1/04

CPC classification number: H04N1/12 ,  H04N2201/0458 ,  H04N2201/04706 ,  H04N2201/04729 ,  H04N2201/04743 ,  H04N2201/04756 ,  H04N2201/04794

Abstract: An image reading apparatus and an image expansion and contraction correcting method are provided that improve the quality of each read image by restraining image expansion and contraction caused by a variation in the combination of conveying units that are conveying each document. The image reading apparatus that includes conveying units (a first conveying unit, a second conveying unit, and a third conveying unit) that convey each document, and an image reading unit (a first image reading unit and a second image reading unit) that reads an image of each document being conveyed by the conveying units. In the image reading apparatus, the image reading speed of the image reading unit is adjusted in accordance with a change in the combination of conveying units that are conveying a document, so as to correct image expansion and contraction caused by a change in document conveying speed caused by the change in the combination of conveying units.

Abstract translation: 提供了一种图像读取装置和图像扩展和收缩校正方法，其通过抑制由传送每个文档的传送单元的组合的变化而导致的图像扩展和收缩来提高每个读取图像的质量。 图像读取装置，其包括传送各文件的输送单元（第一输送单元，第二输送单元和第三输送单元）以及读取单元（图像读取单元和第二图像读取单元）的图像读取单元 每个文件的图像由传送单元传送。 在图像读取装置中，图像读取单元的图像读取速度根据正在传送文档的传送单元的组合的变化进行调整，以便校正由文档传送速度的变化引起的图像扩张和收缩 由输送单元的组合变化引起的。

公开(公告)号：US06806896B2

公开(公告)日：2004-10-19

申请号：US10646594

申请日：2003-08-22

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.

公开(公告)号：US20040160646A1

公开(公告)日：2004-08-19

申请号：US10724998

申请日：2003-12-02

Inventor： Koichi Kudo ,  Takuroh Kamiya ,  Katsuya Kawagoe ,  Ryuuichi Mimbu ,  Junya Takigawa ,  Toshiyuki Andoh ,  Yoshihiro Sakai

IPC: H04N001/04 ,  H04N001/46

CPC classification number: H04N1/506 ,  H04N1/0473 ,  H04N2201/03108 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04731 ,  H04N2201/04756 ,  H04N2201/04791

Abstract: An optical encoder includes a light emitting unit that emits parallel light onto a plurality of marks that are arranged on an object such as a rotor or a belt, at a predetermined interval in a moving direction of the object, and a light receiving unit that receives light modulated by the marks. The parallel light is generated by a collimating lens.

Abstract translation: 光学编码器包括：发光单元，其在物体的移动方向上以预定间隔将平行的光发射到布置在诸如转子或带的物体上的多个标记上;光接收单元，其接收 光线被标记调制。 平行光由准直透镜产生。

公开(公告)号：US20040125416A1

公开(公告)日：2004-07-01

申请号：US10330709

申请日：2002-12-27

Inventor： Noah J. Gawlik ,  Brian K. Owens ,  Donald N. Spitz ,  Gregory P. Washnock

IPC: H04N001/04

CPC classification number: H04N1/32448 ,  H04N1/0473 ,  H04N1/12 ,  H04N1/193 ,  H04N1/32358 ,  H04N2201/02439 ,  H04N2201/04756 ,  H04N2201/04794 ,  H04N2201/3294

Abstract: A method of scanning an image with an electronic scanner. A print medium or a scan bar is moved in an advance direction at an advance velocity. An image on the print medium is scanned using the scan bar. Scan image data is outputted from the scan bar to a buffer memory. A capacity level of the buffer is monitored at discrete points in time. A rate of change of the capacity level over time is determined. The advance velocity is controlled, dependent upon the rate of change.

Abstract translation: 一种使用电子扫描仪扫描图像的方法。 打印介质或扫描条以提前速度沿提前方向移动。 使用扫描栏扫描打印介质上的图像。 扫描图像数据从扫描条输出到缓冲存储器。 在离散的时间点监视缓冲区的容量级别。 确定容量级别随时间的变化率。 取决于变化率控制提前速度。

公开(公告)号：US06580525B1

公开(公告)日：2003-06-17

申请号：US09533938

申请日：2000-03-23

Applicant: Naoto Iwakiri ,  Satoshi Arakawa

Inventor： Naoto Iwakiri ,  Satoshi Arakawa

IPC: H04N140

CPC classification number: H04N1/0411 ,  H04N1/0402 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/0455 ,  H04N2201/04756 ,  H04N2201/04768

Abstract: A digital image signal is read out at a predetermined picture element density by causing a light beam to repeatedly scan a recording medium bearing thereon an image in a main scanning direction at a predetermined main scanning speed while moving the recording medium in a sub-scanning direction substantially perpendicular to the main scanning direction at a predetermined sub-scanning speed, thereby two-dimensionally scanning the recording medium with the light beam, photoelectrically detecting signal light emitted from the recording medium upon exposure to the light beam to obtain an analog image signal, sampling the analog image signal at a predetermined intervals, and quantizing the sampled values. A digital image signal at a desired picture element density different from the predetermined picture element density is read out by changing the sub-scanning speed to m(>0) times the predetermined sub-scanning speed, and changing the intervals at which the analog image signal is sampled to intervals n(>0) times the predetermined intervals.

Abstract translation: 通过使光束以预定的主扫描速度在主扫描方向上以主扫描方向重复扫描记录介质，同时沿副扫描方向移动记录介质，以预定像素密度读出数字图像信号 基本上垂直于主扫描方向以预定的副扫描速度，从而利用光束二维地扫描记录介质，在曝光于光束时光电检测从记录介质发射的信号光，以获得模拟图像信号， 以预定间隔对模拟图像信号进行采样，并对采样值进行量化。 通过将副扫描速度改变为预定副扫描速度的m（> 0）来读出与预定像素浓度不同的期望像素浓度的数字图像信号，并且改变模拟图像的间隔 信号被采样到预定间隔的间隔n（> 0）倍。

公开(公告)号：US20030052957A1

公开(公告)日：2003-03-20

申请号：US10214742

申请日：2002-08-09

Inventor： Yasufumi Yamada ,  Mitsuru Takahashi ,  Takuroh Kamiya ,  Mikio Kamoshita ,  Koichi Kudo

IPC: G03G015/01

CPC classification number: H04N1/506 ,  G03G15/0121 ,  G03G15/0173 ,  G03G2215/0158 ,  G03G2215/0177 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04756 ,  H04N2201/04772 ,  H04N2201/04791

Abstract: An image forming apparatus includes a drum, an optical scanning mechanism, a development mechanism, an intermediate transfer member, movement detecting mechanisms, and a controller. The optical scanning mechanism deflects a laser light beam to form a latent image on a photosensitive surface of the drum. The development mechanism contains a plurality of different color toners and develops the latent image into a color toner image. The intermediate transfer member is rotated in synchronism with a rotation of the drum and receives the color toner image multiple times to form thereon a composite color toner image including multiple images of the different color toners overlaying one to another. The movement detecting mechanisms detect respective movements of the drum and the intermediate transfer belt. The controller controls respective rotations of the drum and the intermediate transfer belt with results of respective detection performed by the plurality of movement detecting mechanisms.

Abstract translation: 图像形成装置包括鼓，光学扫描机构，显影机构，中间转印部件，运动检测机构和控制器。 光学扫描机构使激光束偏转以在感光表面上形成潜像。 显影机构包含多种不同颜色的调色剂并将潜像显影成彩色调色剂图像。 中间转印部件与滚筒的旋转同步旋转，并且多次接收彩色调色剂图像，以在其上形成包括彼此重叠的不同颜色调色剂的多个图像的复合彩色调色剂图像。 运动检测机构检测滚筒和中间转印带的相应运动。 控制器通过多个运动检测机构执行的相应检测结果控制滚筒和中间转印带的各旋转。

公开(公告)号：US20030025949A1

公开(公告)日：2003-02-06

申请号：US09920387

申请日：2001-07-31

Inventor： Kuo-Jeng Wang

IPC: H04N001/46

CPC classification number: H04N1/32448 ,  H04N1/0473 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/04756 ,  H04N2201/04794 ,  H04N2201/329

Abstract: A control device and a method for controlling scanning speed of a scanner. The control device includes a decision device and a driving device. The decision device further includes an image buffer, an up-down counter and a comparator. The decision device receives the input image data and utilizes the up-down counter to compute data access volume inside the image buffer. The comparator decides whether to increase or decrease the scanning speed according to the data access volume and also outputs decision data to the driving device.

Abstract translation: 一种用于控制扫描仪的扫描速度的控制装置和方法。 控制装置包括判定装置和驱动装置。 判定装置还包括图像缓冲器，升降计数器和比较器。 判定装置接收输入图像数据，利用上下计数器来计算图像缓冲器内的数据存取量。 比较器根据数据访问量决定是增加还是降低扫描速度，并将判定数据输出到驱动装置。