公开(公告)号：US20020075528A1

公开(公告)日：2002-06-20

申请号：US09745139

申请日：2000-12-20

Applicant: Xerox Corporation

Inventor： Daniel L. Morris ,  Christopher J. Spencer ,  Michael J. Poirier ,  Timothy G. Shelhart

IPC: H04N001/00 ,  H04N001/46

CPC classification number: H04N1/0071 ,  H04N1/00795 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/044

Abstract: A compact structure and rapid method for calibrating a document scanner provides for a substantially cylindrical calibration casing having a central axis and an outer surface, with a brightness calibration section of the outer surface encompassing a portion of the circumference of the outer surface, a document width detection segment encompassing a second portion of the circumference of the outer surface, and a document backer element encompassing a third segment of the circumference of the outer surface of the casing. A driver selectively positions the casing in different rotational positions in which the different segments of the outer surface of the cylinder face the optical element of the scanner.

Abstract translation: 用于校准文件扫描仪的紧凑结构和快速方法提供了具有中心轴线和外表面的基本上圆柱形的校准壳体，外表面的亮度校准部分包围外表面圆周的一部分，原稿宽度 检测段，其包围外表面的圆周的第二部分，以及包围外壳的外表面的圆周的第三段的文件支撑元件。 驱动器选择性地将壳体定位在不同的旋转位置，其中气缸的外表面的不同段面向扫描仪的光学元件。