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15 条记录 (耗时 0.026 秒)

    Reloadable ribbon cartridge
    4.
    发明授权
    Reloadable ribbon cartridge 失效
    可重装色带盒

    公开(公告)号：US4772143A

    公开(公告)日：1988-09-20

    申请号：US114816

    申请日：1987-10-29

    申请人： James A. Craft ,  James J. Molloy

    发明人： James A. Craft ,  James J. Molloy

    IPC分类号： B41J32/00 ,  B41J33/28 ,  B41J33/42

    CPC分类号： B41J33/42 ,  B41J32/00 ,  B41J33/28

    摘要： A symmetrical printer ribbon cartridge which is refillable. An internal, continuous drive belt (15) provides tension to push studs (33, 35) of the supply spool (23) and of a take-up spool (29) to the ends of notches (31, 32) in cartridge wall 1. When the original supply spool is emptied, a new spool need only be moved into place and the free end of the ribbon pulled from the new spool, directed through the ribbon path in the cartridge, and attached to the remaining spool.

    Printhead assembly for typewriters or the like
    5.
    发明授权
    Printhead assembly for typewriters or the like 失效
    用于打字机的打印头组件等

    公开(公告)号：US4329075A

    公开(公告)日：1982-05-11

    申请号：US163674

    申请日：1980-06-27

    申请人： Steven L. Applegate ,  James J. Molloy

    发明人： Steven L. Applegate ,  James J. Molloy

    IPC分类号： B41J2/24 ,  B41J2/325 ,  B41J2/335 ,  B41J25/304 ,  B41J33/02 ,  B41J33/38 ,  B41J35/04 ,  B41J35/06 ,  B41J33/04

    CPC分类号： B41J35/06

    摘要： A printhead assembly for a typewriter of the kind that swipes a printhead along a ribbon in producing marks on a receiving medium, is mounted to pivot and includes a ribbon guide that serves to wrap the ribbon around the trailing side (for a forward printing direction) of the printhead. The assembly is positioned to permit the printhead to be rotated to a normal printing position at a printing line. By so arranging the ribbon path that the ribbon directions for arrival and departure of the assembly intersect the pivot axis, essentially zero resultant torque may be applied to the assembly by ribbon tension forces and the printing pressure at the receiving medium is, accordingly, unaffected by ribbon tension variations.

    摘要翻译： 一种打印机组件，用于打印机沿着色带在接收介质上产生标记的打印头的打印机安装以枢转并且包括用于将色带包围在后侧（用于正向打印方向）的色带引导件， 的打印头。 该组件被定位成允许打印头在打印线处旋转到正常打印位置。 通过这样布置色带路径，使得组件的到达和离开的带状方向与枢转轴线相交，基本上零的合成扭矩可以通过色带张力施加到组件，因此接收介质上的印刷压力不受 丝带张力变化。

    Electrically conductive ribbon break detector for printers
    8.
    发明授权
    Electrically conductive ribbon break detector for printers 失效
    用于打印机的导电色带断线检测器

    公开(公告)号：US4375339A

    公开(公告)日：1983-03-01

    申请号：US211886

    申请日：1980-12-01

    申请人： Stanley Dyer ,  James J. Molloy ,  Donald A. Walker

    发明人： Stanley Dyer ,  James J. Molloy ,  Donald A. Walker

    IPC分类号： B41J35/36

    CPC分类号： B41J35/36

    摘要： A ribbon feed failure in a printer can cause serious problems, particularly for a printer that uses heat to cause selective ink transfers. Localized heat buildup may injure the printhead and, if allowed to continue, might injure other printer instrumentalities.According to the invention, it is recognized that for ribbons having a degree of electrical conductivity, a mechanical ribbon failure will almost always result in a detectable change of electrical properties. By monitoring the characteristics of an electrical circuit passing through a section of the ribbon around the print point and, preferably, also the printhead-ribbon interface, abnormal electrical parameter values that indicate ribbon failure may be detected to trigger a cessation of printer operation.For a presently preferred implementation in a printer that uses a printhead with multiple electrodes for supplying current to a ribbon, the electrode voltage levels for a plurality of non-adjacent electrodes are combined to provide a resultant voltage level that is examined to detect abnormalities. By so combining voltages, insignificant excursions in electrical characteristics as might result from minor ribbon imperfections are generally eliminated from the triggering of a shutdown response, while still retaining a rapid response for preventing further heat generation in those situations where a serious ribbon failure has occurred.

    摘要翻译： 打印机中的色带供纸故障可能会导致严重的问题，特别是对于使用热量的打印机进行选择性墨水传输。 局部发热可能会损坏打印头，如果允许继续打印，可能会损坏打印机的其他工具。 根据本发明，应当认识到，对于具有一定程度的导电性的带，机械带故障将几乎总是导致电特性的可检测的变化。 通过监测穿过打印点周围的色带的一部分的电路的特性，并且优选地也可以是打印头 - 色带界面，可以检测指示色带故障的异常电参数值，以触发打印机操作的停止。 对于使用具有多个电极的打印头用于向色带提供电流的打印机中目前优选的实施方案，组合用于多个非相邻电极的电极电压电平，以提供检查以检测异常的合成电压电平。 通过如此组合电压，通常可以从触发关断响应中消除由于较小的带缺陷导致的电特性的微小偏移，同时仍然保持快速响应以防止发生严重色带故障的那些情况下的进一步热产生。

    Thermal printhead actuator responsive to carriage drive and including a four bar linkage and spring
    9.
    发明授权
    Thermal printhead actuator responsive to carriage drive and including a four bar linkage and spring 失效
    热打印头致动器响应于托架驱动并且包括四杆连杆和弹簧

    公开(公告)号：US4775252A

    公开(公告)日：1988-10-04

    申请号：US114176

    申请日：1987-10-28

    申请人： Steven L. Applegate ,  James J. Molloy ,  Deh C. Tao

    发明人： Steven L. Applegate ,  James J. Molloy ,  Deh C. Tao

    IPC分类号： B41J2/325 ,  B41J25/316 ,  B41J3/20

    CPC分类号： B41J25/316

    摘要： A thermal printhead, which is pivotally mounted on a carrier, is moved into and out of its printing position by a four bar linkage, which is responsive to the direction in which the carrier is being advanced, rendering a spring, which urges the thermal printhead into its printing position, effective and ineffective. When the carrier is advanced from left to right to print, the linkage responds to a drive mechanism for the carrier to enable movement of the printhead into its printing position by the spring prior to the carrier drive mechanism moving the carrier. When the carrier is to be moved from right to left in the non-printing direction, the linkage responds to the initial motion of the carrier drive mechanism in this direction to render the spring ineffective and to move the printhead out of its printing position prior to the carrier drive mechanism moving the carrier.

    Feed rates and two-mode embodiments for thermal transfer medium conservation
    10.
    发明授权
    Feed rates and two-mode embodiments for thermal transfer medium conservation 失效
    进料速率和热转印介质保存的双模式实施方案

    公开(公告)号：US4558963A

    公开(公告)日：1985-12-17

    申请号：US640208

    申请日：1984-08-10

    申请人： Steven L. Applegate ,  James J. Molloy ,  Clayton V. Wilbur

    发明人： Steven L. Applegate ,  James J. Molloy ,  Clayton V. Wilbur

    IPC分类号： B41J2/325 ,  B41J33/36 ,  B41J3/20

    CPC分类号： B41J33/36 ,  B41J2/325

    摘要： Conservation of ribbon 40 is achieved by underfeeding ribbon 40 relative to movement of thermal printhead 16. Pressure of printhead 16 may be low enough that smearing from a typical ribbon 40 does not occur. Gears 208, 210, 212, 214 and 216 may be positioned in one of two settings by action of bellcrank 230. One position provides a 1.04 to 1 underfeed ratio and the other provides a 5 to 1 underfeed ratio. Control 232 lowers print current for the 5 to 1 ratio. A printer having a single ratio of 1.04 to 1 provides printing of unimpaired quality with significant saving of ribbon.

    摘要翻译： 色带40的保持通过相对于热打印头16的运动而不足的色带40来实现。打印头16的压力可能足够低，从而不会发生从典型色带40的污迹。 齿轮208,210,212,214和216可以通过曲拐230的动作来定位在两个设置中的一个中。一个位置提供1.04比1的欠进给比，而另一个提供5比1的进给比。 控制232降低5比1的打印电流。 具有1.04比1的单一比例的打印机提供打印质量不受影响的显着节省丝带。