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1. 发明授权

US3134849A Means for sequentially depositing toner powder 失效
标题翻译：用于顺序沉积调色剂粉末的方法
公开(公告)号：US3134849A
公开(公告)日：1964-05-26
申请号：US13033861
申请日：1961-08-09
申请人： METROMEDIA INC
发明人： FROHBACH HUGH F , JONES EARLE D , RICE JR PHILIP J , WRIGHT LOREN G
IPC分类号： G03G15/08 , G03G15/34 , H04N1/032 , H04N1/50
CPC分类号： G03G15/08 , G03G15/346 , H04N1/032 , H04N1/502 , Y10S101/37 , Y10S222/01

2. 发明授权

US4651161A Dynamically varying the pressure of fluid to an ink jet printer head 失效
标题翻译：动态地将流体的压力改变为喷墨打印头
公开(公告)号：US4651161A
公开(公告)日：1987-03-17
申请号：US820520
申请日：1986-01-17
申请人： Leonard G. Rich , Dale G. Blake
发明人： Leonard G. Rich , Dale G. Blake
IPC分类号： B41J2/175 , B41J2/015 , B41J2/04 , B41J2/045 , B41J2/055 , B41J2/17 , G01D15/18
CPC分类号： B41J2/17
摘要： A hydraulic circuit and related method are provided for dynamically varying the pressure of ink supplied to an ink jet printer head to obtain consistent volume ejected ink drops despite differences in the time elapsing between successive drops. A dot rate command signal related to an actuation frequency and corresponding to the pressure of ink at the head necessary for producing an ejected drop having a desired volume is compared with the ink pressure at the head to produce a pressure control signal for varying the pressure of the ink in a variable volume fluid chamber to deliver ink to the head at the desired pressure. The pressure control signal is one chosen by experiment as that required to produce the desired ink drop volume for the specific ink supply and ink jet printer head employed.
摘要翻译：提供了一种液压回路和相关方法，用于动态地改变供应给喷墨打印机头的油墨的压力，以获得一致的体积喷射墨滴，尽管连续滴下时间的差异有所不同。与驱动频率相关的点速率指令信号与产生具有所需体积的喷射液滴所需的油墨压力相对应，与头部处的油墨压力进行比较，以产生用于改变压力的压力控制信号油墨在可变体积的流体室中，以在期望的压力下将油墨输送到头部。压力控制信号是通过实验所选择的那样，为所用的特定供墨和喷墨打印机产生所需的墨滴体积所需的信号。

3. 发明授权

US4580914A Apparatus and method for positioning an ink-jet printing head 失效
标题翻译：用于定位喷墨打印头的装置和方法
公开(公告)号：US4580914A
公开(公告)日：1986-04-08
申请号：US637161
申请日：1984-08-02
申请人： Leonard G. Rich , Jeffrey J. Murray , Brian Phelan
发明人： Leonard G. Rich , Jeffrey J. Murray , Brian Phelan
IPC分类号： B41J2/01 , B41J2/015 , B41J2/02 , B41J2/07 , B41J2/12 , B41J11/00 , B41J25/308 , B41J11/20
CPC分类号： B41J2/01 , B41J11/001 , B41J25/308
摘要： A circuit and related method are provided for maintaining a desired spacing between an ink-jet printing means and a receiving surface along a line scanned by the printing means. An ultrasonic transducer transmits signals at timed intervals to the receiving surface from the printing means. A reflected signal from the receiving surface is sensed by the transducer during a receiving time window after the signal is transmitted. A reference position signal representative of the head to surface spacing at a printing location is compared to the desired head to surface spacing to produce a position error signal. A servomotor responds to the position error signal to move the printing means toward and away from the receiving surface to maintain the desired spacing.
摘要翻译：提供了一种电路和相关方法，用于沿着由打印装置扫描的线保持喷墨打印装置和接收表面之间的期望间隔。超声波换能器以定时的间隔将信号从打印装置传送到接收表面。在发送信号之后的接收时间窗口期间，来自接收表面的反射信号由换能器感测。将表示打印位置处的头对面间距的参考位置信号与期望的头对面间隔进行比较，以产生位置误差信号。伺服电动机响应于位置误差信号以使打印装置朝向和远离接收表面移动以保持所需的间隔。

4. 发明授权

US4638373A Method and apparatus for improving gray scale resolution in an ink jet printing system 失效
标题翻译：用于改善喷墨打印系统中的灰度分辨率的方法和装置
公开(公告)号：US4638373A
公开(公告)日：1987-01-20
申请号：US708744
申请日：1985-03-06
申请人： David J. Logan
发明人： David J. Logan
IPC分类号： B41J2/205 , B41J2/52 , H04N1/23 , H04N1/405 , H04N1/41 , H04N1/21 , G01D9/00 , G01D15/16
CPC分类号： H04N1/4051
摘要： Image processing apparatus for increasing the gray scale resolution of a graphic generated by an ink jet printing system wherein the graphic is made up of pixel areas on a receiving surface and each pixel area is comprised of a fixed number of potential dot positions printed with substantially equal sized dots. A sequential series of image density signals representative of the gray scale color intensity is generated from an original graphic and converted to a dot level value for each pixel. A pixel's dot level value is compared to a set of integer and non-integer values and pixels having dot level values falling between the same two successive integer values are selected. A predetermined dot level value is alternately added to the identified adjacent pixels so that one is increased and the other is decreased by the predetermined dot value. The resulting values are rounded off to the nearest integer and each pixel is printed with its respective new value. The resulting gray scale color intensity represented by the two printed pixels is the average of the sums of the two printed pixels' dot level values.
摘要翻译：用于增加由喷墨打印系统生成的图形的灰度分辨率的图像处理装置，其中图形由接收表面上的像素区域和每个像素区域组成，其中固定数量的潜在点位置基本相等大小的点。从原始图形生成代表灰度色彩强度的连续系列图像浓度信号，并将其转换为每个像素的点电平值。将像素的点电平值与一组整数和非整数值进行比较，并且选择具有落在相同的两个连续整数值之间的点电平值的像素。将预定的点电平值交替地添加到所识别的相邻像素，使得一个增加，另一个减小预定的点值。结果值被四舍五入为最接近的整数，并且每个像素都以其相应的新值打印。由两个印刷像素表示的所得灰度色彩强度是两个印刷像素的点电平值的和的平均值。

5. 发明授权

US4599626A Ink drop ejecting head 失效
标题翻译：墨滴喷头
公开(公告)号：US4599626A
公开(公告)日：1986-07-08
申请号：US637163
申请日：1984-08-02
申请人： Leonard G. Rich
发明人： Leonard G. Rich
IPC分类号： B41J2/01 , B41J2/02 , B41J2/045 , B41J2/055 , B41J2/14 , B41J2/175 , B41J2/18 , B41J2/185 , B41J2/20 , G01D15/18
CPC分类号： B41J2/1429 , B41J2/20 , B41J2002/14362
摘要： An ink jet head for ejecting drops of ink in an ink jet printing system is designed for easy disassembly for cleaning and can readily be made in different sizes including one capable of ejecting relatively large volume drops of heavily pigmented and relatively viscous ink as may be used for printing outdoor billboards or other large scale graphics. The head also includes a means for reducing the size of or entirely eliminating any blob of ink which may form over the ejection port at low actuating frequencies, thereby making the velocity and other characteristics of the ejected drops more uniform over the full range of operating frequencies.
摘要翻译：用于在喷墨打印系统中喷射油墨的喷墨头设计成易于拆卸清洁，并且可以容易地制成不同的尺寸，包括能够喷射可能使用的相当大体积的重度着色和相对粘稠的油墨的液滴的尺寸用于印刷户外广告牌或其他大型图形。头部还包括用于减小或完全消除在低致动频率下可能在喷射口形成的任何墨斑的装置，从而使喷射的速度和其它特性在整个工作频率范围内更均匀。

6. 发明授权

US4547786A Ink jet printing system 失效
标题翻译：喷墨打印系统
公开(公告)号：US4547786A
公开(公告)日：1985-10-15
申请号：US637151
申请日：1984-08-02
申请人： David J. Logan , Kenneth O. Wood , Thomas A. Gordon , John E. Ladue
发明人： David J. Logan , Kenneth O. Wood , Thomas A. Gordon , John E. Ladue
IPC分类号： B41J2/01 , B41J11/00 , G09F15/02 , H04N1/10 , H04N1/23 , H04N1/50 , G01D15/18 , G01D15/34 , H04N1/46
CPC分类号： B41J11/001 , B41J2/01 , G09F15/02 , H04N1/1008 , H04N1/506
摘要： An ink jet printing system suited to the making of large scale graphics, such as outdoor billboards, includes an endless carrier for moving a plurality of rigid flat panels, onto which a graphic is to be printed in sections, repetitively past an ink jet printing station. At the printing station each panel moves in purely rectilinear fashion in a direction parallel to its ink drop receiving face so that such face remains essentially at a uniform spacing from the ink jet printing heads of the printing station as the printing occurs. A means for timing the operation of the ink jet heads takes into account irregularities or changes in the motion of the panels past the printing station so that the ink drops are correctly placed despite such irregularities or changes. The ink jet heads can eject relatively large drops of pigmented ink. In the case of polychromatic half-tone printing, for each pixel of a panel different colors are printed at substantially different times so that the printed ink drops of one color can dry before those of another color are printed, and a heating means may be used to enhance the drying.
摘要翻译：适用于制造诸如户外广告牌的大型图形的喷墨打印系统包括用于移动多个刚性平板的环形托架，图形将被打印到其上，重复地经过喷墨印刷站。在印刷站，每个面板以平行于其墨滴接收面的方向以纯直线方式移动，使得当打印发生时，这些面基本保持与印刷站的喷墨打印头的均匀间隔。考虑到喷墨头的操作的定时的装置考虑了经过印刷台的板的运动的不规则或变化，使得尽管存在这种不规则或变化，墨滴也被正确放置。喷墨头可以喷出相对大量的着色油墨。在多色半色调印刷的情况下，对于面板的每个像素，以不同的颜色印刷大致不同的时间，使得一个颜色的印刷墨滴在打印另一种颜色之前可以干燥，并且可以使用加热装置以增强干燥。

7. 发明授权

US4575730A Ink jet printing randomizing droplet placement apparatus 失效
标题翻译：喷墨印刷随机分散液滴装置
公开(公告)号：US4575730A
公开(公告)日：1986-03-11
申请号：US671291
申请日：1984-11-14
申请人： David J. Logan , Leonard G. Rich
发明人： David J. Logan , Leonard G. Rich
IPC分类号： B41J2/07 , B41J2/015 , B41J2/075 , B41J2/12 , G01D15/18
CPC分类号： B41J2/12
摘要： Ink jet printing apparatus is provided for vertically randomizing the flight paths of ink drops ejected from an ink jet printing head to print dots at positions randomly deviated vertically with respect to a line scanned by the printing head. Ejected ink drops are passed through an electric field having a randomly varying intensity and direction to randomly deflect the ink drop flight path with respect to a line scanned by the printing head.
摘要翻译：喷墨打印设备用于使从喷墨打印头喷射的墨滴的飞行路径垂直随机化，以在相对于由打印头扫描的线垂直方向上随机偏移的位置上打印点。喷射的墨滴通过具有随机变化的强度和方向的电场，以相对于由打印头扫描的线随机偏转墨滴飞行路径。

8. 发明授权

US4562445A Apparatus and method for driving ink jet printer 失效
标题翻译：用于驱动喷墨打印机的设备和方法
公开(公告)号：US4562445A
公开(公告)日：1985-12-31
申请号：US634499
申请日：1984-07-26
申请人： Leonard G. Rich
发明人： Leonard G. Rich
IPC分类号： B41J2/045 , B41J2/015 , B41J2/055 , B41J2/07 , B41J2/13 , B41J25/34 , G01D15/16
CPC分类号： B41J2/07 , B41J25/34
摘要： A circuit and related method are provided for driving an ink jet printer to achieve a consistent velocity of ejected ink drop despite differences in the time elapsing between successive drops. Timing pulses timing the ejection of drops each trigger the production of a fundamental waveform. This waveform is then multiplied by a multiplying factor selected from a look-up table in response to the time elapsing between the timing pulse causing the generation of the waveform and the preceding timing pulse, and the modified waveform so produced is used to drive the printing head through a power amplifier. The multiplying factor is one chosen by experiment as that required to produce the desired ink jet velocity. In a preferred embodiment both the fundamental waveform and the multiplying factor may each be obtained through the use of an associated PROM so that the waveform shape and multiplying factor versus dot frequency characteristic may be readily changed to suit the particular printer head in question.
摘要翻译：提供一种用于驱动喷墨打印机的电路和相关方法，以尽管连续滴下时间间隔的差异来实现喷射墨滴的一致速度。计时滴定脉冲的定时脉冲触发产生基波形。然后，响应于导致产生波形的定时脉冲与先前定时脉冲之间的时间的时间，将该波形乘以从查找表中选择的乘法因子，并且使用如此产生的修改波形来驱动打印通过功率放大器。倍增因子是通过实验选择的，因为产生所需的喷墨速度所需的倍率。在优选实施例中，基本波形和乘法因子可以各自通过使用相关联的PROM来获得，使得可以容易地改变波形形状和倍频因子与点频率特性以适合所讨论的特定打印头。

9. 发明授权

US3230303A Half-tone color display generating system 失效
标题翻译：半色调彩色显示生成系统
公开(公告)号：US3230303A
公开(公告)日：1966-01-18
申请号：US20691462
申请日：1962-07-02
申请人： METROMEDIA INC
发明人： ALBERT MACOVSKI , JONES EARLE D , FROHBACH HUGH F , REMINGTON DAVID G
IPC分类号： G03G15/01 , H04N1/207 , H04N1/50 , H04N1/52
CPC分类号： G03G15/011 , H04N1/207 , H04N1/508 , H04N1/52 , Y10S101/37

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