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1. 发明授权

US4755836A Printhead cartridge and carriage assembly 失效
标题翻译：打印头墨盒和托架总成
公开(公告)号：US4755836A
公开(公告)日：1988-07-05
申请号：US47075
申请日：1987-05-05
申请人： Chuong C. Ta , Todd L. Russell , Anthony W. Ebersole
发明人： Chuong C. Ta , Todd L. Russell , Anthony W. Ebersole
IPC分类号： B41J2/175 , B41J25/34 , G01D15/16
CPC分类号： B41J2/17526 , B41J2/1752 , B41J25/34
摘要： A printhead cartridge and carriage assembly (10) for use with ink-jet printers is disclosed. The assembly is provided with means (56) for ensuring that an ink-jet cartridge (20) is securely locked in place in a cartridge carrier (12), means (78, 78a, 80, 80a, 82, 82a) for ensuring that cartridge is registered in a given, fixed, repeatable position each time, means (128) for ensuring that the cartridge is spaced from the printing medium (40) a minimum, fixed distance, means (100) on the carriage for maintaining this fixed distance, and interconnect means (84) for connecting a printhead assembly (34) on the cartridge with a microprocessor for controlling the pattern of ink drop ejection. The assembly further includes a preloader assembly (106) for preventing backward rotational pivoting of the carriage about a slider rod (44) associated with a platen (46) of the printer and for urging the carriage toward the medium on the platen. Finally, a dust barrier (132) protects the interconnect means at the contact to the printhead assembly.
摘要翻译：公开了一种用于喷墨打印机的打印头墨盒和托架组件（10）。组件设置有用于确保喷墨盒（20）被牢固地锁定在盒托架（12）中的适当位置的装置（56），装置（78,78a，80,80a，82,82a）用于确保每次将墨盒注册在给定的，固定的可重复位置，用于确保墨盒与打印介质（40）间隔开最小固定距离的装置（128），用于保持该固定距离的装置（100）以及用于将盒上的打印头组件（34）与用于控制墨滴喷射图案的微处理器连接的互连装置（84）。组件还包括用于防止滑架绕与打印机的压板（46）相关联的滑动杆（44）的向后旋转枢转的预加载器组件（106），并且用于将滑架推向台板上的介质。最后，防尘屏障（132）在与打印头组件的接触处保护互连装置。

2. 发明授权

US5034758A Dust shield for a printer 失效
标题翻译：打印机防尘罩
公开(公告)号：US5034758A
公开(公告)日：1991-07-23
申请号：US423623
申请日：1989-10-17
申请人： Anthony W. Ebersole , Robert W. Beauchamp , Chuong C. Ta
发明人： Anthony W. Ebersole , Robert W. Beauchamp , Chuong C. Ta
IPC分类号： B41J29/12
CPC分类号： B41J29/12
摘要： A dust shield for preventing paper dust from fouling a printer and printhead mechanism is disclosed. In a sprocket-wheel paper drive printer, the sprockets are at least partially encased as they enter and exit the holes in the paper. Paper particles are trapped and then channelled away from mechanisms, such as a thermal ink jet cartridge printhead, whose operation may be detrimentally affected by such dust.
摘要翻译：公开了一种用于防止纸屑污染打印机和打印头机构的防尘罩。在链轮式纸驱动打印机中，链轮在进入和离开纸中的孔时至少部分地被包围。纸颗粒被捕获，然后被引导离开诸如热喷墨墨盒打印头的机构，其操作可能不利地受到这种灰尘的影响。

4. 发明授权

US5880757A Print resolution enhancement by adjusting printhead position 失效
标题翻译：通过调整打印头位置来提高打印分辨率
公开(公告)号：US5880757A
公开(公告)日：1999-03-09
申请号：US711573
申请日：1996-09-10
申请人： Chuong C. Ta
发明人： Chuong C. Ta
IPC分类号： B41J2/205 , B41J2/13 , B41J2/21 , B41J2/485 , B41J2/51 , B41J19/14 , B41J25/304 , G01D9/38 , G01D15/20 , B41J2/145
CPC分类号： B41J25/001 , B41J2/2103 , B41J2/2132 , B41J25/005 , B41J25/304 , G01D15/20 , G01D9/38 , B41J19/142
摘要： A swath type printer including a print carriage supported printhead and a printhead positioning mechanism for adjusting the position of the printhead relative to the media axis at the end of each scan of the carriage along a carriage axis, such that dots printed by printing elements of the printhead in a sequence of a first scan and a second scan of the print carriage are interleaved along the media axis and are separated along the media axis by one-half of the predetermined printing element dot pitch.
摘要翻译：一种带式打印机，包括打印托架支撑的打印头和打印头定位机构，用于在托架的每次扫描结束时沿着滑架轴线调整打印头相对于介质轴的位置，使得由打印机的打印元件打印的点打印头以打印托架的第一扫描和第二扫描的顺序沿着介质轴交错并且沿着介质轴分离预定打印元件点间距的一半。

5. 发明授权

US5861899A Wide-swath printer/plotter using multiple printheads 失效
标题翻译：宽幅打印机/绘图仪使用多个打印头
公开(公告)号：US5861899A
公开(公告)日：1999-01-19
申请号：US556728
申请日：1995-11-13
申请人： Michael A. Nguyen , Lowell J. Stewart , Daniel S. Kline , Robert A. Boeller , Chuong C. Ta , Robert D. Haselby
发明人： Michael A. Nguyen , Lowell J. Stewart , Daniel S. Kline , Robert A. Boeller , Chuong C. Ta , Robert D. Haselby
IPC分类号： B41J2/01 , B41J2/21 , B41J19/14 , B41J25/304 , G01D9/38 , G01D15/20 , B41J2/07
CPC分类号： B41J25/001 , B41J2/2103 , B41J2/2132 , B41J25/005 , B41J25/304 , G01D15/20 , G01D9/38 , B41J19/142
摘要： Greater throughput is possible by using wider print swaths in each traverse across printing media. Multiple print cartridges are mounted to be offset from each other in the media scan direction (X-axis). The amount of offset is adjustably varied by selective on/off control of individual printing elements as well as by relative mechanical movement of the print cartridges.
摘要翻译：通过在打印介质上的每次横越中使用更宽的打印幅面，可以实现更高的吞吐量。安装多个打印墨盒以便在介质扫描方向（X轴）上彼此偏移。通过对各个打印元件的选择性打开/关闭控制以及通过打印墨盒的相对机械移动可调整地改变偏移量。

6. 发明授权

US5691754A Rigid tube off-axis ink supply 失效
标题翻译：刚性管离轴油墨供应
公开(公告)号：US5691754A
公开(公告)日：1997-11-25
申请号：US700068
申请日：1996-08-19
申请人： Chuong C. Ta
发明人： Chuong C. Ta
IPC分类号： B41J2/175 , B41J29/377
CPC分类号： B41J2/17509 , B41J2/175 , B41J29/377 , B41J2/17596
摘要： An ink jet printer that including a movable print carriage, an ink jet printhead cartridge removably supported by the movable print carriage, a stationary ink reservoir located remotely from the ink jet printhead cartridge, a movable ink conveying coupler fluidically coupled to the stationary ink reservoir, and a rigid ink conveying tube connected between the movable ink conveying coupler and the ink jet printhead cartridge, wherein the movable ink conveying coupler moves relative to the stationary ink reservoir as the movable carriage moves along a carriage axis. A ink pump can be driven by the reciprocating motion of the movable ink conveying coupler, and another rigid ink conveying tube be provided to achieve ink recirculation for printhead cooling.
摘要翻译：一种喷墨打印机，包括可移动的打印托架，由可移动的打印托架可拆卸地支撑的喷墨打印头墨盒，位于远离喷墨打印头墨盒的固定墨水容器，与流体耦合到固定墨水容器的可移动墨水输送耦合器，以及连接在可移动墨水输送联接器和喷墨打印头墨盒之间的刚性墨水输送管，其中当可移动托架沿托架轴线移动时，可移动墨水输送联接器相对于固定墨水容器移动。可以通过可移动墨水输送耦合器的往复运动来驱动墨水泵，并且提供另一个刚性墨水输送管以实现用于打印头冷却的墨水再循环。

7. 发明授权

US5537227A Paper picking and separator system for facsmile or copy machine 失效
标题翻译：造纸机或复印机的采摘和分选系统
公开(公告)号：US5537227A
公开(公告)日：1996-07-16
申请号：US324288
申请日：1994-10-14
申请人： Morad M. Samii , Chuong C. Ta
发明人： Morad M. Samii , Chuong C. Ta
IPC分类号： G03G15/00 , B41J13/10 , B65H3/06 , B65H3/52 , H04N1/00 , H04N1/04
CPC分类号： B41J13/103
摘要： A facsimile machine containing an improved paper separator system is described where, instead of a symmetrical, cylindrical paper-feed roller, an asymmetrical feed roller (or stripper roller) is used to separate a bottommost sheet from a stack of sheets. Eccentric portions of the feed roller are located at both ends of the roller, and the middle portion of the roller is cylindrical. Paper-feed springs oppose the eccentric portions of the feed roller, while a centrally located separator pad opposes the cylindrical middle portion of the feed roller. The extended radius at the apogee of the eccentric portions allows the eccentric portions to effectively reach out and grab the bottommost sheet even if the stack of sheets were only initially lightly contacting the roller. The eccentric portions of the feed roller also provide surges in the frictional force urging the bottommost sheets toward the separator pad. This surge in force acts to spread out (or pre-separate) the paper in the stack so the paper can be more easily separated by the separator pad.
摘要翻译：描述了包含改进的纸分离器系统的传真机，其中代替对称的圆柱形送纸辊，使用不对称的进给辊（或剥离辊）来将最下面的纸张与一叠纸张分开。进料辊的偏心部分位于辊的两端，辊的中间部分是圆柱形的。送纸弹簧与进给辊的偏心部分相对，而位于中心的分隔垫与进给辊的圆柱形中间部分相对。在偏心部分的远地点处的延伸半径允许偏心部分有效地伸出并抓住最底部的片材，即使一叠片材最初仅轻轻地接触辊子。进给辊的偏心部分也提供了将最下面的薄片推向分隔垫的摩擦力的浪涌。这种浪涌作用用于将纸张分散（或预分离）在堆叠中，使得纸张可以更容易地被分离器垫分离。

8. 发明授权

US5488397A Wide-swath printer/plotter using multiple printheads 失效
公开(公告)号：US5488397A
公开(公告)日：1996-01-30
申请号：US787297
申请日：1991-11-04
申请人： Michael A. Nguyen , Lowell J. Stewart , Daniel S. Kline , Robert A. Boeller , Chuong C. Ta , Robert D. Haselby
发明人： Michael A. Nguyen , Lowell J. Stewart , Daniel S. Kline , Robert A. Boeller , Chuong C. Ta , Robert D. Haselby
IPC分类号： B41J2/01 , B41J2/21 , B41J19/14 , B41J25/304 , G01D9/38 , G01D15/20 , B41J2/07
CPC分类号： B41J25/001 , B41J2/2103 , B41J2/2132 , B41J25/005 , B41J25/304 , G01D15/20 , G01D9/38 , B41J19/142
摘要： Greater throughput is possible by using wider print swaths in each traverse across printing media. Multiple print cartridges are mounted to be offset from each other in the media scan direction (X-axis). The amount of offset is adjustably varied by selective on/off control of individual printing elements as well as by relative mechanical movement of the print cartridges.

9. 发明授权

US4786803A Single channel encoder with specific scale support structure 失效
标题翻译：单通道编码器具有特定的刻度支持结构
公开(公告)号：US4786803A
公开(公告)日：1988-11-22
申请号：US56936
申请日：1987-06-01
申请人： Mark W. Majette , Hatem E. Mostafa , Chuong C. Ta
发明人： Mark W. Majette , Hatem E. Mostafa , Chuong C. Ta
IPC分类号： G01P3/486 , G01D5/245 , G01D5/347 , G01D5/36 , G01D15/24 , G01B11/14
CPC分类号： G01D5/2457 , G01D15/24 , G01D5/34715
摘要： The single channel encoder comprises a transparent scale in which the scale divisions are defined by transverse opaque lines having a width greater than the width between the opaque lines. An emitter holder and a detector holder snap together, clamping an aperture plate there between. The aperture plate has a slit therein which is disposed in the optical path between the emitter and the detector. Projections functioning as scale supports on the opposite sides of the emitter holder and the detector holder are disposed in longitudinally spaced positions and define a gap therebetween for engaging the outside edges of the encoder scale outside of the opaque transverse lines to precisely position the scale in the optical path for maintaining a constant gap between the encoder scale and the aperture plate.

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