公开(公告)号：US07532227B2

公开(公告)日：2009-05-12

申请号：US10609577

申请日：2003-07-01

Applicant: Tomohiro Nakajima ,  Akira Kojima ,  Ikuko Yamashiro ,  Seizo Suzuki ,  Taku Amada ,  Yoshinori Hayashi ,  Kazuyuki Shimada

Inventor： Tomohiro Nakajima ,  Akira Kojima ,  Ikuko Yamashiro ,  Seizo Suzuki ,  Taku Amada ,  Yoshinori Hayashi ,  Kazuyuki Shimada

IPC: B41J15/14 ,  B41J27/00

CPC classification number: G06K15/1228 ,  G02B26/123 ,  G03G2215/0132 ,  G03G2215/0141 ,  G06K15/1219 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/0082 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04732 ,  H04N2201/04751 ,  H04N2201/04762 ,  H04N2201/04793

Abstract: An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.

Abstract translation: 光学扫描器能够有效地校正相对于用于扫描串联型彩色图像形成装置的感光鼓的光点的位置之间的副扫描方向的差异。 光学扫描器包括光轴调节部。 光轴调整部使用偏转镜或楔形棱镜相对于副扫描方向偏转光束的光轴。 结果，可以精确地校正各个图像形成站之间的抗蚀剂差异，并且形成没有任何颜色位移的高质量彩色图像。

公开(公告)号：US07491919B2

公开(公告)日：2009-02-17

申请号：US11316683

申请日：2005-12-21

Applicant: David Skurnik ,  Mark Freeman ,  Randy Sprague ,  Margaret Brown ,  Harpal Sira

Inventor： David Skurnik ,  Mark Freeman ,  Randy Sprague ,  Margaret Brown ,  Harpal Sira

IPC: H01L27/00 ,  H01J3/14

CPC classification number: G02B26/105 ,  G09G3/02 ,  H03L7/07 ,  H03L7/0812 ,  H04N1/047 ,  H04N1/1135 ,  H04N2201/0082 ,  H04N2201/04712 ,  H04N2201/04713 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04751 ,  H04N2201/04781 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A circuit for detecting a phase error between a clock signal and a beam position includes a beam generator, a sensor, and a phase detector. The beam generator directs a beam toward a beam sweeper in response to the clock signal, and the sensor detects the beam as directed from the beam sweeper. The phase detector determines from the detected beam the error in the clock phase relative to the beam position. Such a circuit can automatically detect the phase error in the pixel clock and correct this error, thus eliminating the need for a manual phase-error corrector. The circuit may also be able to adjust the width and/or the height of a scan region, and thus may also be able to adjust the width and/or height of an image frame within the scan region.

Abstract translation: 用于检测时钟信号和波束位置之间的相位误差的电路包括波束发生器，传感器和相位检测器。 光束发生器响应于时钟信号将光束引向光束扫描器，并且传感器根据光束扫描器的指示来检测光束。 相位检测器根据检测到的光束确定时钟相位相对于光束位置的误差。 这样的电路可以自动检测像素时钟中的相位误差并纠正该误差，从而消除了对手动相位误差校正器的需要。 该电路还可能能够调整扫描区域的宽度和/或高度，并且因此也可能能够调整扫描区域内的图像帧的宽度和/或高度。

公开(公告)号：US20060267968A1

公开(公告)日：2006-11-30

申请号：US11316326

申请日：2005-12-21

Applicant: Scott Straka ,  Jari Honkanen ,  Philip Black ,  James Moore

Inventor： Scott Straka ,  Jari Honkanen ,  Philip Black ,  James Moore

IPC: G09G5/00

CPC classification number: G02B26/105 ,  G09G3/02 ,  H03L7/07 ,  H03L7/0812 ,  H04N1/047 ,  H04N1/1135 ,  H04N2201/0082 ,  H04N2201/04712 ,  H04N2201/04713 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04751 ,  H04N2201/04781 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A circuit for detecting a phase error between a clock signal and a beam position includes a beam generator, sensor, and phase detector. The beam generator directs a beam toward a beam sweeper in response to a clock signal. The sensor, which is disposed at a mid line of a region that the beam sweeper scans, detects the beam from the beam sweeper, and the phase detector detects an error in the clock phase from the detected beam. Such a circuit can automatically detect the phase error in the pixel clock and correct this error, thus eliminating the need for a manual phase-error corrector.

Abstract translation: 用于检测时钟信号和波束位置之间的相位误差的电路包括波束发生器，传感器和相位检测器。 光束发生器响应于时钟信号将光束引导到扫频器。 设置在扫频器扫描的区域的中间线处的传感器检测来自扫雷器的光束，并且相位检测器从检测到的光束检测时钟相位中的误差。 这样的电路可以自动检测像素时钟中的相位误差并纠正该误差，从而消除了对手动相位误差校正器的需要。

公开(公告)号：US20060187497A1

公开(公告)日：2006-08-24

申请号：US11316683

申请日：2005-12-21

Applicant: David Skurnik ,  Mark Freeman ,  Randy Sprague ,  Margaret Brown ,  Harpal Sira

Inventor： David Skurnik ,  Mark Freeman ,  Randy Sprague ,  Margaret Brown ,  Harpal Sira

IPC: H04N1/40

CPC classification number: G02B26/105 ,  G09G3/02 ,  H03L7/07 ,  H03L7/0812 ,  H04N1/047 ,  H04N1/1135 ,  H04N2201/0082 ,  H04N2201/04712 ,  H04N2201/04713 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04751 ,  H04N2201/04781 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A circuit for detecting a phase error between a clock signal and a beam position includes a beam generator, a sensor, and a phase detector. The beam generator directs a beam toward a beam sweeper in response to the clock signal, and the sensor detects the beam as directed from the beam sweeper. The phase detector determines from the detected beam the error in the clock phase relative to the beam position. Such a circuit can automatically detect the phase error in the pixel clock and correct this error, thus eliminating the need for a manual phase-error corrector. The circuit may also be able to adjust the width and/or the height of a scan region, and thus may also be able to adjust the width and/or height of an image frame within the scan region.

公开(公告)号：US20050237374A1

公开(公告)日：2005-10-27

申请号：US11148650

申请日：2005-06-09

Applicant: Tatsuhito Kataoka ,  Hirokazu Kodama

Inventor： Tatsuhito Kataoka ,  Hirokazu Kodama

IPC: B41J2/525 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G21/14 ,  H04N1/047 ,  H04N1/29 ,  H04N1/50 ,  B41J2/435 ,  B41J2/47

CPC classification number: H04N1/506 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161 ,  H04N1/047 ,  H04N2201/0082 ,  H04N2201/02425 ,  H04N2201/04712 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04751 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: An image forming apparatus includes a plurality of image forming stations each having an image carrier and forming an image on the image carrier; a mark detecting unit for detecting a plurality of registration correction marks formed on a recording medium by the plurality of image forming stations; a correction mechanism for correcting a position difference between images formed by the plurality of image forming stations in accordance with a detection result by the mark detecting unit; and a controller for independently controlling an image forming operation of each of the plurality of the image forming stations so that the image density of each of the registration correction marks formed by the plurality of image forming units has a different predetermined image density.

公开(公告)号：US20040227966A1

公开(公告)日：2004-11-18

申请号：US10808501

申请日：2004-03-25

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Jung-han Lee

IPC: H04N001/58 ,  G03G015/01 ,  G06K015/14 ,  B41J002/385

CPC classification number: H04N1/00015 ,  H04N1/00002 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/047 ,  H04N1/506 ,  H04N2201/04722 ,  H04N2201/04751

Abstract: A color registration control method is provided. The color registration control method includes developing a registration pattern with predetermined colors by overlapping a left-half pattern and a right-half pattern of a second pattern, and a left-half pattern and a right-half pattern of a first pattern, which are arranged symmetrically to a center, respectively, in a scanning direction; detecting density information of the left-half pattern and the right-half pattern of the registration pattern by using a first and a second density sensor, and sending the detected information to a comparator; calculating a color registration error by comparing the density of the left-half pattern with the density of the right-half pattern; and outputting from the control unit a color registration control signal according to an error signal received by the comparator.

Abstract translation: 提供了一种颜色配准控制方法。 颜色配准控制方法包括通过重叠第二图案的左半图案和右半图案以及第一图案的左半图案和右半图案来重叠具有预定颜色的配准图案，其是 分别在扫描方向上对称地布置在中心上; 通过使用第一和第二密度传感器检测登记图案的左半图案和右半图案的浓度信息，并将检测到的信息发送到比较器; 通过将左半图案的密度与右半图案的密度进行比较来计算颜色配准误差; 并根据由比较器接收到的误差信号从控制单元输出彩色登记控制信号。

公开(公告)号：US20040036936A1

公开(公告)日：2004-02-26

申请号：US10609577

申请日：2003-07-01

Inventor： Tomohiro Nakajima ,  Akira Kojima ,  Ikuko Yamashiro ,  Seizo Suzuki ,  Taku Amada ,  Yoshinori Hayashi ,  Kazuyuki Shimada

IPC: G02B026/08

CPC classification number: G06K15/1228 ,  G02B26/123 ,  G03G2215/0132 ,  G03G2215/0141 ,  G06K15/1219 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/0082 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04732 ,  H04N2201/04751 ,  H04N2201/04762 ,  H04N2201/04793

Abstract: An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.

Abstract translation: 光学扫描器能够有效地校正相对于用于扫描串联型彩色图像形成装置的感光鼓的光点的位置之间的副扫描方向的差异。 光学扫描器包括光轴调节部。 光轴调整部使用偏转镜或楔形棱镜相对于副扫描方向偏转光束的光轴。 结果，可以精确地校正各个图像形成站之间的抗蚀剂差异，并且形成没有任何颜色位移的高质量彩色图像。

公开(公告)号：US20030161058A1

公开(公告)日：2003-08-28

申请号：US10369472

申请日：2003-02-20

Applicant: Konica Corporation

Inventor： Mitsuo Azumai

IPC: G02B001/00

CPC classification number: H04N1/047 ,  H04N2201/0082 ,  H04N2201/0091 ,  H04N2201/0093 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04751 ,  H04N2201/04758

Abstract: An image forming apparatus includes: a pattern generator for generating pattern data for recording a set of test patterns at respective specified positions thereof on the recording sheet; a positional deviation detector for detecting a positional deviation at each characteristic point included in the set of test patterns generated by the pattern generator, in the image data read from the recording sheet on which the image containing the set of test patterns has been formed, by comparing with a position of the proper output at each characteristic point; and a deviation correcting device for calculating operational values for a correction of each pixel with reference to the respective positional deviations of the characteristic points detected by the positional deviation detector and for carrying out a processing to eliminate the positional deviation of each pixel at the time of image formation by using the operational values.

Abstract translation: 一种图像形成装置包括：图案发生器，用于产生图案数据，用于在记录纸上的各个指定位置记录一组测试图案; 一个位置偏差检测器，用于检测由图案发生器产生的测试图形集合中包括的图像数据中包含的每个特征点处的位置偏差，该图像数据是从其上已经形成了包含该组测试图案的图像的记录片材读出的图像数据中的， 与每个特征点处的适当输出的位置进行比较; 以及偏差校正装置，用于参考由位置偏差检测器检测的特征点的各个位置偏差来计算每个像素的校正的操作值，并执行消除每个像素时的位置偏差的处理 通过使用操作值形成图像。

公开(公告)号：EP2428031A1

公开(公告)日：2012-03-14

申请号：EP10719816.0

申请日：2010-04-22

Applicant: Eastman Kodak Company

Inventor： WARNES, Allan

IPC: H04N1/047 ,  H04N1/06 ,  B41J2/00 ,  B41J29/393

CPC classification number: H04N1/047 ,  B41J11/008 ,  B41J29/38 ,  B41J29/393 ,  H04N1/06 ,  H04N2201/04717 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04743 ,  H04N2201/04751 ,  H04N2201/04755 ,  H04N2201/04767 ,  H04N2201/04787

Abstract: The present invention relates to a method for changing the calibration of a recording apparatus (10) to adjust for geometric distortion, comprising: providing a media support (12) for receiving recording media (17); operating a recording head (16) comprising plurality of individually addressable recording channels (23) to form a first image feature (60) on the recording media while the recording media is positioned with a first orientation (50A) on the media support; operating a recording head to form a second image feature (62) on the recording media while the recording media is positioned with a second orientation (50B) on the media support, the second orientation being different from the first orientation; detecting variance in an expected separation between the first image feature and the second image feature; and making an imaging correction in accordance with the detected variance.

Abstract translation: 本发明涉及一种用于改变记录设备（10）的校准以调整几何失真的方法，包括：提供用于接收记录介质（17）的介质支撑件（12）; 操作包括多个可单独寻址的记录通道（23）的记录头（16），以在所述记录介质在所述介质支撑件上以第一定向（50A）定位的同时在所述记录介质上形成第一图像特征（60） 操作记录头以在记录介质在介质支撑件上以第二取向（50B）定位时在记录介质上形成第二图像特征（62），第二取向不同于第一取向; 检测所述第一图像特征与所述第二图像特征之间的预期分离的差异; 并根据检测到的方差进行成像校正。

公开(公告)号：EP1613052A2

公开(公告)日：2006-01-04

申请号：EP05101202.9

申请日：2005-02-17

Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.

Inventor： Oki, Makoto Konica Minolta Business Tech., Inc.

IPC: H04N1/047

CPC classification number: H04N1/047 ,  H04N1/0058 ,  H04N2201/04717 ,  H04N2201/04718 ,  H04N2201/04732 ,  H04N2201/04751 ,  H04N2201/04793

Abstract: In one embodiment, an image forming apparatus: forms, on both sides of a reference chart sheet 10, reference positioning images which are determined in advance relative to reference positions on both sides of the reference chart sheet 10; reads reference images through the image readable area from a plurality of parts on both sides of the reference chart sheet 10 or from the folded reference chart sheet 10; and adjusts image forming positions on both sides of a paper according to read-out information obtained from the reference images. The image forming positions are corrected on both sides of the paper which is greater in size than the image readable area of the image reader 11 by reading the images from multiple parts of the reference chart sheet 10 or from the folded reference chart sheet 10.

Abstract translation: 在一个实施例中，图像形成装置：在参考图表10的两侧上形成相对于参考图表10的两侧的参考位置预先确定的参考定位图像; 从参考图表10的两侧的多个部分或从折叠的参考图表10读取通过图像可读区域的参考图像; 并且根据从参考图像获得的读出信息来调整纸张两侧的图像形成位置。 通过从参考图表10的多个部分或从折叠的参考图表10读取图像，在尺寸比图像读取器11的图像可读区域更大的纸张的两侧校正图像形成位置。