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1. 发明授权

EP0067948B1 Method and apparatus for producing liquid drops on demand 有权转让
标题翻译：生产液体液体需求的方法和装置
公开(公告)号：EP0067948B1
公开(公告)日：1985-08-14
申请号：EP82103883.3
申请日：1982-05-05
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Talke, Frank Eberhard
IPC分类号： B41J3/04
CPC分类号： B41J2/155 , B41J2/14298

2. 发明公开

EP0101862A2 Ink jet drop-on demand printing head 失效
标题翻译：打印头控制墨滴的生成。
公开(公告)号：EP0101862A2
公开(公告)日：1984-03-07
申请号：EP83106870.5
申请日：1983-07-13
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Talke, Grank Eberhard
IPC分类号： B41J3/04
CPC分类号： B41J2/2128
摘要： An ink jet drop-on-demand printing system having grey scale capability comprising a transducer having a plurality of separately actuable sections 16. Print data is provided which defines a selected drop volume and control means (14) is provided which is operable in response to the print data to produce drive signals to selectively actuate a particular combination of the separately actuable sections 16 of the transducer to produce a drop 15 of the volume specified by the print data. To provide further control over the drop volume while maintaining the drop velocity within selected limits, the amplitude of the drive signals can also be varied. A further refinement can be provided by varying not only the amplitude of the drive signals but also the pulse width of the drive signals. In the embodiment shown in the drawing the transducer sections are of equal length, while the sections are of unequal length in a second embodiment.

3. 发明公开

EP0147575A3 Drop-on-demand ink jet printers 有权转让
标题翻译：喷墨打印机喷墨打印机
公开(公告)号：EP0147575A3
公开(公告)日：1986-03-12
申请号：EP84113326
申请日：1984-11-06
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Payne, Robert Nolan , Talke, Frank Eberhard
IPC分类号： B41J03/04
CPC分类号： B41J2/2128 , B41J2202/06
摘要： An ink jet drop-on-demand printing system comprising an ink jet print head (10) having an ink cavity (23) supplied with a suitable ink. An electromechanical transducer (16) is mounted in mechanical communication with the ink cavity, and a control means (14) is provided to selectively actuate the transducer to produce an ink drop of a selected size. To produce ink drops of a selected size a source of electrical signals comprised in the control means produces electrical drive signals (60a to 60n) each separated by a fixed time delay (τ) which is short with respect to the drop-on-demand drop production rate (T). Each electrical drive signal (60a to 60n) is capable of ejecting a predetermined volume of ink and all ejected the volumes of ink merge to form a single drop prior to the time the ink drops reach the print medium for printing. By selecting groups (e.g. 60a to 60d, or 60a to 60f) from the signals (60a to 60n) the size of the merged drop can be selected.

4. 发明公开

EP0147575A2 Drop-on-demand ink jet printers 有权转让
标题翻译：喷墨控制液滴产生。
公开(公告)号：EP0147575A2
公开(公告)日：1985-07-10
申请号：EP84113326.7
申请日：1984-11-06
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Payne, Robert Nolan , Talke, Frank Eberhard
IPC分类号： B41J3/04
CPC分类号： B41J2/2128 , B41J2202/06
摘要： An ink jet drop-on-demand printing system comprising an ink jet print head (10) having an ink cavity (23) supplied with a suitable ink. An electromechanical transducer (16) is mounted in mechanical communication with the ink cavity, and a control means (14) is provided to selectively actuate the transducer to produce an ink drop of a selected size. To produce ink drops of a selected size a source of electrical signals comprised in the control means produces electrical drive signals (60a to 60n) each separated by a fixed time delay (τ) which is short with respect to the drop-on-demand drop production rate (T). Each electrical drive signal (60a to 60n) is capable of ejecting a predetermined volume of ink and all ejected the volumes of ink merge to form a single drop prior to the time the ink drops reach the print medium for printing. By selecting groups (e.g. 60a to 60d, or 60a to 60f) from the signals (60a to 60n) the size of the merged drop can be selected.

5. 发明授权

EP0147575B1 Drop-on-demand ink jet printers 有权转让
标题翻译：喷墨打印机喷墨打印机
公开(公告)号：EP0147575B1
公开(公告)日：1988-03-09
申请号：EP84113326.7
申请日：1984-11-06
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Payne, Robert Nolan , Talke, Frank Eberhard
IPC分类号： B41J3/04
CPC分类号： B41J2/2128 , B41J2202/06

6. 发明授权

EP0045382B1 A method of operating an ink jet printer and a drop-on-demand ink jet printer 失效
标题翻译：喷墨打印机和喷墨打印机的操作方法
公开(公告)号：EP0045382B1
公开(公告)日：1984-06-20
申请号：EP81105225.7
申请日：1981-07-06
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Talke, Frank Eberhard
IPC分类号： B41J3/04
CPC分类号： B41J2/125 , B41J2/16526

7. 发明公开

EP0105156A3 Ink jet printing apparatus and methods of operating such apparatus 失效
标题翻译：喷墨打印设备和操作这种设备的方法
公开(公告)号：EP0105156A3
公开(公告)日：1986-01-02
申请号：EP83108127
申请日：1983-08-17
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Niweigha, Tiefa Kingsley , Talke, Frank Eberhard
IPC分类号： B41J03/04
CPC分类号： B41J2/04581 , B41J2/04588 , B41J2/04596 , B41J2/12
摘要： A drop-on-demand ink jet printing apparatus comprising a print head having an electromechanical transducer mounted in mechanical communication with the fluid in a fluid chamber within the print head. The transducer is selectively energized with a drop ejecting signal so that one drop of ink is ejected for each drop ejecting signal. In addition the transducer is energized with a series of low amplitude excitation signals which serve to maintain substantially constant dynamic ink characteristics so that quality printing is produced especially during start-up of the apparatus. The excitation pulses can be asynchronous with respect to the drop ejecting signals or synchronous but delayed with respect to the drop ejecting signals. Isolation means are provided to prevent concurrent excitation of the transducer with both a drop ejecting signal and an excitation signal. The data to be printed is stored in device 30 and passed to character generator 31 which produces the bit patterns required to energise the drivers 35 under control of clock generator 32. The driver output pulses are coupled to the associated transducer input terminal via terminal 41. The required series of low amplitude excitation signals are produced by pulse source 33 and Darlington drive circuit 36. The diodes 39 are provided to isolate the two pulse sources. In addition if a data pulse from driver 35 is present at the same time as a pulse from driver 36, the diode is effective to block the low amplitude pulse.

8. 发明授权

EP0020984B1 Ink jet printing system and method of generating liquid droplets 有权转让
标题翻译：喷墨打印系统和液滴滴定仪的生成方法
公开(公告)号：EP0020984B1
公开(公告)日：1983-08-03
申请号：EP80102582.6
申请日：1980-05-09
申请人： International Business Machines Corporation
发明人： Juliana Jr., Anthony , Koepcke, Richard Wayne , Mills, Ross Neal , Talke, Frank Eberhard
IPC分类号： B41J3/04
CPC分类号： B41J2/04581 , B41J2/04588 , B41J2/04596 , B41J2002/14387

9. 发明公开

EP0045382A1 A method of operating an ink jet printer and a drop-on-demand ink jet printer 失效
标题翻译：一种操作喷墨打印机和下降请求的喷墨打印机的方法。
公开(公告)号：EP0045382A1
公开(公告)日：1982-02-10
申请号：EP81105225.7
申请日：1981-07-06
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Talke, Frank Eberhard
IPC分类号： B41J3/04
CPC分类号： B41J2/125 , B41J2/16526
摘要： The drawing shows part of the print head and associated drive circuitry of an ink jet printer. The head comprises a tubular piezo-electric transducer (11,12, 13b) driven from a periodic source 37 running at the resonant frequency of the piezoelectric cavity 17 or from a clock source 46 gated by print signals. During driving by source 37 the transducer is energized with a series of pulses for a preselected short time period (delay 39) and at a repetition rate substantially equal to a resonant frequency of the ink cavity (17). This effectively purges any entrapped air from the ink system. Except during purging, the transducer operates asynchronously in drop-on-demand mode in response to discrete binary print signals.
Purging is accomplished automatically as a part of the start up operation and also if, during operation, the velocity V. of the ink droplets (26), as sensed by a sensor (41), drops below a preselected reference value Vr.
摘要翻译：该图示出了打印头的一部分和喷墨打印机的相关的驱动电路。所述头部包括一管状压电换能器（11，12，13B）从在压电腔17的谐振频率或从通过打印信号选通的时钟源46上运行的周期性源37驱动。期间由源37驱动换能器被激励与预选短的时间周期（延迟39），并且在一个重复频率基本上等于所述墨腔（17）的谐振频率的一系列脉冲。这有效地清除任何夹带的空气从墨水系统，除了净化期间，换能器在异步滴按需模式响应于离散二进制打印信号进行操作。 ... 吹扫作为的一部分自动完成的启动操作，因此，如果在手术过程中，墨滴（26）的速度V5，如由传感器（41）感测到低于预选基准值 VR。

10. 发明公开

EP0101862A3 Ink jet drop-on demand printing head 失效
标题翻译：墨水喷墨打印头打印头
公开(公告)号：EP0101862A3
公开(公告)日：1985-12-27
申请号：EP83106870
申请日：1983-07-13
申请人： International Business Machines Corporation
发明人： Lee, Francis Chee-Shuen , Mills, Ross Neal , Talke, Grank Eberhard
IPC分类号： B41J03/04
CPC分类号： B41J2/2128
摘要： An ink jet drop-on-demand printing system having grey scale capability comprising a transducer having a plurality of separately actuable sections 16. Print data is provided which defines a selected drop volume and control means (14) is provided which is operable in response to the print data to produce drive signals to selectively actuate a particular combination of the separately actuable sections 16 of the transducer to produce a drop 15 of the volume specified by the print data. To provide further control over the drop volume while maintaining the drop velocity within selected limits, the amplitude of the drive signals can also be varied. A further refinement can be provided by varying not only the amplitude of the drive signals but also the pulse width of the drive signals. In the embodiment shown in the drawing the transducer sections are of equal length, while the sections are of unequal length in a second embodiment.

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