公开(公告)号：WO9722944A2

公开(公告)日：1997-06-26

申请号：PCT/US9618648

申请日：1996-11-20

Applicant: MARKEM CORP

Inventor： EMGE GARY M ,  CARTER STEPHEN W ,  GEORGIS DAVID G ,  MCCANN JAMES T

IPC: B41J2/44 ,  B23K26/067 ,  B41J2/32 ,  B41J2/45 ,  B41J2/455 ,  G06K1/12 ,  G06K15/02 ,  G06K

CPC classification number: B23K26/067 ,  B23K26/0673 ,  B23K26/082 ,  B23K26/705 ,  B41J2/44 ,  B41J2/471 ,  G06K1/121 ,  G06K1/126 ,  G06K15/029

Abstract: A technique for marking pixels on workpieces by routing a scanned beam to different marking stations to mark individual pixels on the workpieces. A diffractive scan lens focuses the beam. A mark is formed on a workpiece by producing the mark and curing the mark. Angular position of a scanning mirror in a raster scanner is determined by moving a beam, reflected from the scanner, across rulings on a optical element during scanning. A print head for printing spots on a surface of a workpiece has a walled, internally pressurized chamber and structure for causing an inked web to conform to a contour of the chamber wall and to be pulled along the chamber wall. A print head has a compliant-walled, internally pressurized chamber. A print head has a chamber having a low-coefficient of friction coating. Two workpieces may be marked at two marking stations by two-directional scanning.

Abstract translation: 通过将扫描的光束路由到不同的标记位置来标记工件上的各个像素来标记工件上的像素的技术。 衍射扫描透镜对光束进行聚焦。 通过产生标记并固化标记，在工件上形成标记。 光栅扫描仪中的扫描镜的角度位置是通过在扫描期间将从扫描仪反射的光束移动到光学元件上的刻度来确定的。 用于在工件的表面上印刷点的打印头具有壁的内部加压的室和结构，用于使着墨的幅材符合室壁的轮廓并沿着室壁被拉动。 打印头具有柔性壁的内部加压室。 打印头具有具有低摩擦系数涂层的室。 两个工件可以通过双向扫描标记在两个标记站。