公开(公告)号：US5612722A

公开(公告)日：1997-03-18

申请号：US601384

申请日：1996-02-14

申请人： Monty L. Francis ,  Edmund H. James, III ,  Donald N. Spitz

发明人： Monty L. Francis ,  Edmund H. James, III ,  Donald N. Spitz

IPC分类号： B41J2/165

CPC分类号： B41J2/16538

摘要： A wiper for an ink jet printhead comprises a monolithic body having a mounting portion and a head portion, the head portion including a wiper portion and a beam portion for supporting the wiper portion on the mounting portion. The mounting portion has a bottom surface and a slot centered in the bottom surface where the slot extends toward the head portion from the bottom surface and receives a mounting beam that is movable. The wiper is characterized in that the wiper portion has two non-parallel side surfaces which diverge from the beam portion and intersect a flat top surface of the wiper portion at acute angles so as to form two parallel wiping edges which may alternately wipe the printhead as the printhead moves back and forth relative to the wiper. Because the side surfaces of the head portion form angles of less than 90.degree. with the top surface there is less tendency for the head to trap and ride on ink wiped from the printhead. The beam portion has a hole extending through it thus making it more flexible. This permits a harder material to be used in the wiper without causing damage to the printhead. The wiper is normally supported on the opposite side of the plane of record feed from the printhead and may be raised into the path of travel of the printhead. An optional blotter may be provided for absorbing from the wiper the ink which is wiped from the printhead.

摘要翻译： 用于喷墨打印头的擦拭器包括具有安装部分和头部部分的整体式主体，头部包括擦拭器部分和用于在安装部分上支撑擦拭器部分的梁部分。 安装部分具有底表面和在底表面中心的槽，其中槽从底表面朝向头部延伸并且接收可移动的安装梁。 擦拭器的特征在于，擦拭器部分具有两个非平行的侧表面，该两个非平行的侧表面与梁部分分开并且以锐角与擦拭器部分的平坦顶表面相交，以便形成两个平行的擦拭边缘，其可以交替地将打印头擦拭为 打印头相对于刮水器来回移动。 由于头部的侧面与顶面形成小于90°的角度，所以头部不易陷入并骑在从打印头擦拭的墨水上的倾向较小。 梁部分具有延伸通过它的孔，使得其更加柔性。 这允许在擦拭器中使用更硬的材料而不会损坏打印头。 擦拭器通常被支撑在来自打印头的记录进给平面的相反侧上，并且可以被升高到打印头的行进路径中。 可以提供可选的吸墨纸，用于从擦拭器吸收从打印头擦去的墨水。

公开(公告)号：US5563637A

公开(公告)日：1996-10-08

申请号：US143328

申请日：1993-10-26

申请人： Monty L. Francis ,  Paul Harrington III ,  Randall D. Mayo ,  Katherine A. Profitt ,  Donald N. Spitz

发明人： Monty L. Francis ,  Paul Harrington III ,  Randall D. Mayo ,  Katherine A. Profitt ,  Donald N. Spitz

IPC分类号： B41J2/165

CPC分类号： B41J2/16547

摘要： A maintenance station for an ink jet printer comprises two modules supported from the printer middle frame by a tongue and groove arrangement and secured in place only by retaining elements integrally formed with the middle frame. The first module includes a wiper element and a cap to provide an air seal around the nozzles. The wiper and cap are mounted on a pivoted rocker element so that as the wiper is moved toward the printhead the cap is moved away therefrom and visa-versa. The second module carries a small DC motor, a nut with a pair of forked arms, and gearing for converting bidirectional rotation of the motor into linear reciprocal motion of the forked arms. The forked arms engage projections on the rocker element so that the wiper or cap is moved toward or away from the printhead depending on the direction of rotation of the motor. In a first position of the rocker element the wiper is positioned in the path of the printhead so as to wipe the nozzles as the printhead is moved back and forth. In a second position the cap presses against the printhead to form an air seal around the nozzles. In a third position the wiper and cap are both spaced away from the path of the printhead and below the plane of the record feed path. The printer controller senses motor current and controls positioning of the rocker element without the need for a position feedback encoder.

摘要翻译： 用于喷墨打印机的维护站包括通过榫槽布置从打印机中间框架支撑的两个模块，并且仅通过与中间框架一体形成的保持元件固定就位。 第一模块包括擦拭器元件和盖，以在喷嘴周围提供空气密封。 刮水器和盖子安装在枢转的摇臂元件上，使得当刮水器朝向打印头移动时，盖子从其移开，反之亦然。 第二个模块带有一个小直流电动机，一个带有一对分叉臂的螺母，以及用于将电动机的双向旋转转换为叉形臂的线性往复运动的传动装置。 叉形臂与摇臂元件上的突起接合，使得刮水器或帽根据马达的旋转方向朝向或远离打印头移动。 在摇臂元件的第一位置中，擦拭器位于打印头的路径中，以便当打印头前后移动时擦拭喷嘴。 在第二位置，盖压靠打印头以在喷嘴周围形成空气密封。 在第三位置，擦拭器和盖子都与打印头的路径间隔开并且在记录馈送路径的平面之下。 打印机控制器感测电机电流并控制摇臂元件的定位，而不需要位置反馈编码器。