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1. 发明申请

WO1997035726A1 INK JET PRINTHEAD AND METHOD OF MAKING 审中-公开
标题翻译：喷墨打印机和制作方法
公开(公告)号：WO1997035726A1
公开(公告)日：1997-10-02
申请号：PCT/US1997005090
申请日：1997-03-25
申请人： IMAGING TECHNOLOGY INTERNATIONAL CORPORATION , MILLS, Ross, Neal
发明人： IMAGING TECHNOLOGY INTERNATIONAL CORPORATION
IPC分类号： B41J02/135
CPC分类号： B41J2/1625 , B41J2/162 , B41J2/1628 , B41J2/1631 , B41J2/1632 , B41J2/1634 , B41J2/1637 , B41J2/1642 , B41J2/1643 , B41J2/1646
摘要： An ink jet printhead includes a nonconductive substrate into which a plurality of tapered nozzle holes are formed with the wide hole area coincident with an ink entry side and with the narrow hole area coincident with an ink exit side, and with an ink reservoir mounted on the ink entry side. A metal layer covers the interior of each nozzle hole, and also provides an electrical control-signal conductor on the ink entry side for each metallized nozzle hole. The metal layer also provides a tubular metal extension for each metallized nozzle, these extensions extending a common distance beyond the ink exit side. A plurality of metal conductors may be provided on the ink exit side to facilitate nozzle control using signal-multiplexing techniques, or a field compensation electrode may be provided on the ink exit side.
摘要翻译：一种喷墨打印头包括一个不导电基底，多个锥形喷嘴孔形成有多个锥形喷嘴孔，其具有与墨入口侧重合的宽孔区域，并且窄孔区域与墨出口侧重合，并且墨盒安装在墨水入口侧。金属层覆盖每个喷嘴孔的内部，并且还在每个金属喷嘴孔的墨入口侧上提供电控信号导体。金属层还为每个金属化喷嘴提供管状金属延伸部，这些延伸部延伸出超出墨水出口侧的公共距离。可以在墨出口侧设置多个金属导体，以便于使用信号复用技术的喷嘴控制，或者可以在墨出口侧设置场补偿电极。

2. 发明申请

WO1997015447A1 SHADOW PULSE COMPENSATION OF AN INK JET PRINTER 审中-公开
标题翻译：喷墨打印机的阴影脉冲补偿
公开(公告)号：WO1997015447A1
公开(公告)日：1997-05-01
申请号：PCT/US1996016891
申请日：1996-10-22
申请人： IMAGING TECHNOLOGY INTERNATIONAL CORPORATION , MILLS, Ross, Neal
发明人： IMAGING TECHNOLOGY INTERNATIONAL CORPORATION , KERR, James, Elwood , FEBVRE, Jon-Christophe, Bernard
IPC分类号： B41J02/06
CPC分类号： B41J2/06 , B41J2002/061
摘要： In an electrostatic ink jet printer, all nozzles (10, 11, 12, 13, 14) of a printhead (20) are spaced generally the same distance from a moving paper print substrate (15). Three voltage levels (VB, VS, VP) are selectively applied to each nozzle of the printhead. As the paper moves past the printhead, a bias voltage (VB) is applied to all nozzles which have a static protruding meniscus which shape is determined by a balance between the internal pressure, surface tension, and bias voltage. When the paper arrives at a print row, non-printing nozzles (11, 12) and field compensation electrodes each have a shadow pulse (VS) applied thereto, and printing nozzles have a higher magnitude print pulse (VP) applied thereto. The magnitude of the shadow pulse causes an additional excursion of the ink meniscus (50, 60) to form at each non-printing nozzle. The higher magnitude of the print pulse causes an ink filament (200, 213, 214) to move from a printing nozzle (10, 13, 14) to the paper. The time duration of each print pulse is varied in accordance with an ink density parameter up to a range that is determined by the duration of the shadow pulse. The electrostatic field difference between printing nozzles and each of non-printing nozzles and field compensation electrodes is of a low magnitude that inhibits ink filament deflection and ink volume differences due to crosstalk between nozzles.
摘要翻译：在静电喷墨打印机中，打印头（20）的所有喷嘴（10,11,12,13,14）与移动的纸张打印基板（15）的距离基本相同。选择性地将三个电压电平（VB，VS，VP）施加到打印头的每个喷嘴。当纸移动通过打印头时，偏压（VB）被施加到具有静态突出弯液面的所有喷嘴，其形状由内部压力，表面张力和偏置电压之间的平衡决定。当纸张到达打印行时，非打印喷嘴（11,12）和场补偿电极各自具有施加到其上的阴影脉冲（VS），并且打印喷嘴具有施加到其上的较大幅度的打印脉冲（VP）。阴影脉冲的大小导致在每个非印刷喷嘴处形成墨水弯液面（50,60）的附加偏移。打印脉冲的较大幅度使得墨丝（200,213,214）从打印喷嘴（10,13,14）移动到纸张上。每个打印脉冲的持续时间根据墨水密度参数而变化，直到由阴影脉冲的持续时间确定的范围。打印喷嘴与非打印喷嘴和场补偿电极之间的静电场差异具有低的幅度，其抑制由于喷嘴之间的串扰引起的墨丝变形和墨体积差异。

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