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    Measurement and correction of a scan line length error
    112.
    发明授权
    Measurement and correction of a scan line length error 失效
    扫描线长度误差的测量和校正

    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。

    Image forming apparatus
    113.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    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。

    Image color registration sensor calibration
    114.
    发明授权
    Image color registration sensor calibration 有权
    图像颜色对位传感器校准

    公开(公告)号：US06603574B1

    公开(公告)日：2003-08-05

    申请号：US09447231

    申请日：1999-11-23

    Applicant: Olga Y. Ramirez ,  Mark A. Omelchenko

    Inventor： Olga Y. Ramirez ,  Mark A. Omelchenko

    IPC: B41B0000

    CPC classification number: H04N1/00023 ,  G03G15/0152 ,  G03G15/0168 ,  G03G2215/0158 ,  G03G2215/017 ,  H04N1/00002 ,  H04N1/00031 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/047 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04741

    Abstract: Color imaging methods and systems are provided where each color separation image is to be registered in a composite manner under a variety of machine conditions. Registration sensors are provided to register the color separations under a variety of machine conditions while accounting for the different types of registration sensors used. A controller calibrates the registration sensors automatically based on set-up data and, using the calibrated sensors, controls the output of the image data for one or more of the color separation images to reduce or eliminate image registration offsets. The registration sensors are calibrated by directly measuring set-up marks during set-up. Each registration sensor outputs a feedback to the controller during set-up to account for phenomenon caused by variation in toner concentration or sensor susceptibility. The registration sensors provide a plurality of set-up sensor feedback values, one for each of at least four colors and one for a bare photoreceptor belt. The controller determines the differences between the set-up sensor feedback value for each of the four colors and the set-up feedback value for the bare photoreceptor belt and uses the determined differences to adjust the operating conditions for each sensor, including the amount of driving current applied to the sensor.

    Abstract translation: 提供彩色成像方法和系统，其中在各种机器条件下，以复合方式登记每个分色图像。 提供了注册传感器，用于在各种机器条件下注册分色，同时考虑到使用的不同类型的对位传感器。 控制器基于设置数据自动校准注册传感器，并且使用校准的传感器控制一个或多个颜色分离图像的图像数据的输出，以减少或消除图像配准偏移。 注册传感器通过在设置过程中直接测量设置标记进行校准。 每个配准传感器在设置期间向控制器输出反馈，以解决由调色剂浓度或传感器敏感性变化引起的现象。 配准传感器提供多个设置的传感器反馈值，每个至少四种颜色中的每一个，一个用于裸露感光带。 控制器确定四种颜色中的每一种的设置传感器反馈值和裸露感光带的设置反馈值之间的差异，并使用确定的差异来调整每个传感器的操作条件，包括驱动量 施加在传感器上的电流。

    Method and apparatus for image squareness correction
    115.
    发明申请
    Method and apparatus for image squareness correction 失效
    图像矩形校正的方法和装置

    公开(公告)号：US20030128401A1

    公开(公告)日：2003-07-10

    申请号：US10041025

    申请日：2002-01-07

    Applicant: XEROX CORPORATION

    Inventor： Brian R. Conrow ,  David M. Kerxhalli

    IPC: H04N001/23 ,  H04N001/29

    CPC classification number: H04N1/00015 ,  H04N1/00002 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00087 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0098 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04732 ,  H04N2201/04755

    Abstract: A method of correcting output image squareness in a laser printer system having a Raster Output Scanning (ROS) device with a pivotal mounting. The method includes printing a test pattern that includes a plurality of markers printed in a predetermined geometric arrangement and calculating a skew angle based on the measured distances, preferably using the Law of Cosines. The ROS device is then automatically rotated by an amount sufficient to correct the skew angle. The ROS rotation is performed automatically by an adjustment system connected to the ROS. The method optionally includes a scanner for scanning the test pattern image and making the measurements automatically via a program configured to analyze the scanned image.

    Abstract translation: 一种在具有具有枢轴安装的光栅输出扫描（ROS）装置的激光打印机系统中校正输出图像矩形度的方法。 该方法包括打印包括以预定几何布置印刷的多个标记的测试图案，并且优选地使用余弦法来计算基于测量距离的斜角。 然后，ROS装置自动旋转足以校正歪斜角度的量。 ROS旋转由连接到ROS的调整系统自动执行。 该方法可选地包括扫描器，用于扫描测试图案图像并通过经配置以分析扫描图像的程序自动进行测量。

    Optical imaging device with speed variable illumination
    117.
    发明申请
    Optical imaging device with speed variable illumination 失效
    具有速度可变照明的光学成像装置

    公开(公告)号：US20030111589A1

    公开(公告)日：2003-06-19

    申请号：US10027747

    申请日：2001-12-19

    Inventor： Eric Aas ,  Gordon R. Nuttall

    IPC: H01L027/00

    CPC classification number: H04N1/02815 ,  H04N1/031 ,  H04N1/107 ,  H04N2201/0458 ,  H04N2201/0471 ,  H04N2201/04731 ,  H04N2201/04743

    Abstract: The invention discloses a system and method for an optical imaging device comprising an image sensor for reading image data from an original slid over the image sensor, a variable power interface for varying an intensity of an illumination source corresponding to the image sensor, wherein the intensity is varied responsive to velocities of the original slid over the image sensor, and a processor for processing the image data.

    Abstract translation: 本发明公开了一种光学成像装置的系统和方法，包括用于从图像传感器上滑动的原稿读取图像数据的图像传感器，用于改变对应于图像传感器的照明源的强度的可变电源接口，其中强度 响应于原稿在图像传感器上滑动的速度而变化，以及用于处理图像数据的处理器。

    Scan device with elastic reserve type and its scan method
    118.
    发明申请
    Scan device with elastic reserve type and its scan method 失效
    具有弹性储备型的扫描装置及其扫描方法

    公开(公告)号：US20030106939A1

    公开(公告)日：2003-06-12

    申请号：US10010056

    申请日：2001-12-07

    Inventor： Shih-Wen Kuo

    IPC: G06K007/10

    CPC classification number: H04N1/107 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0096 ,  H04N2201/0444 ,  H04N2201/0464 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04739 ,  H04N2201/04786

    Abstract: The invention is a scan device with elastic reserve type and its scan method, mainly applied to the light, thin, short and small scanner, image recorder, etc. The invention includes a guide bar, a chassis, a gear structure, an elastic module, a fastening structure and a sensor device, wherein, a scan module is on the chassis, the gear structure is consisting of at least one gear, the fastening structure is consisting of at least two fasteners and the sensor device is consisting of at least two sensors with one objective. To use the elasticity with the feature of reserving ability and the fastening structure is to move the chassis for scanning. The scanning motion of start and stop is via the sensor device. For combining the function of the above each part, most of them take traditionally mechanical transmission except that scan module is electrical power.

    Abstract translation: 本发明是一种具有弹性储备型及其扫描方式的扫描装置，主要应用于轻，薄，短，小扫描仪，图像记录器等。本发明包括导杆，底盘，齿轮结构，弹性模块 ，紧固结构和传感器装置，其中扫描模块在底盘上，齿轮结构由至少一个齿轮组成，紧固结构由至少两个紧固件构成，并且传感器装置由至少两个 传感器有一个目标。 使用具有预留能力的弹性，紧固结构是移动机箱进行扫描。 启动和停止的扫描运动是通过传感器设备。 为了组合上述各部分的功能，除了扫描模块是电力之外，大部分采用传统的机械传动。

    Sub-pel registration of color planes using cartridge velocity control
    119.
    发明授权
    Sub-pel registration of color planes using cartridge velocity control 有权
    使用墨盒速度控制的彩色平面子像素配准

    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。

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