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1. 发明公开

EP0865921A3 Piezoelectric element driving circuit and ink jet recording apparatus 失效
标题翻译：元素与天赋
公开(公告)号：EP0865921A3
公开(公告)日：1999-08-11
申请号：EP97305778.9
申请日：1997-07-31
申请人： FUJITSU LIMITED
发明人： Nakamura, Shigeyoshi , Moroo, Jun , Nou, Hiroshi
IPC分类号： B41J2/045
CPC分类号： B41J2/0452 , B41J2/04541 , B41J2/04581 , B41J2/04588
摘要： A piezoelectric element driving circuit drives a plurality of piezoelectric elements having common electrodes and independent electrodes which are driven independently. The piezoelectric element driving circuit includes a first switch circuit (25; 25-1 to 25-n) enabling each of a plurality of piezoelectric elements of a first piezoelectric element group (34) having the common electrodes coupled in common in response to a first enable signal, a second switch circuit (26) enabling each of a plurality of piezoelectric elements of a second piezoelectric element group (35) in response to a second enable signal, where the piezoelectric elements of the second piezoelectric element group are different from the piezoelectric elements of the first piezoelectric element group, and a driving circuit part (31, 32, 33-1 to 33-n) driving in common the independent electrodes of the corresponding piezoelectric elements of the first and second piezoelectric element groups based on recording data.
摘要翻译：压电元件驱动电路驱动具有公共电极的多个压电元件和独立驱动的独立电极。压电元件驱动电路包括第一开关电路（25; 25-1至25-n），其能够使第一压电元件组（34）的多个压电元件中的每一个具有共同的电极，第一压电元件组响应于第二使能信号使第二压电元件组（35）的多个压电元件中的每一个的第二开关电路（26），其中第二压电元件组的压电元件不同于压电元件第一压电元件组的元件以及基于记录数据共同驱动第一和第二压电元件组的相应压电元件的独立电极的驱动电路部分（31,32,33-1至33-n）。

2. 发明公开

EP0812689A1 Method of driving piezoelectric type ink jet head 失效
标题翻译： Verfahren zum Antreiben eines piezoelektrischen Antriebs
公开(公告)号：EP0812689A1
公开(公告)日：1997-12-17
申请号：EP97304028.0
申请日：1997-06-10
申请人： FUJITSU LIMITED
发明人： Nakamura, Shigeyoshi , Nou, Hiroshi , Semba, Satoshi , Mikami, Tomohisa
IPC分类号： B41J2/045 , B41J2/21
CPC分类号： B41J2/04541 , B41J2/04563 , B41J2/04581 , B41J2/04588 , B41J2/2128
摘要： Disclosed is a method of driving a piezo-electric type ink jet head for jetting inks out of a nozzle by making use of a distortion of a piezo-electric element. The driving method includes a first step of driving the piezo-electric element so that a meniscus of inks is receded from an initial position of the nozzle to a first position within the nozzle, a second step of driving the piezo-electric element so that the meniscus quickly advances from the first position to a second position within the nozzle, and a third step of driving the piezo-electric element so that the meniscus slowly advances from the second position to the initial position. A particle quantity of ink particles is changed by changing a movement quantity from the fist position to the second position in the second step.
摘要翻译：公开了一种通过利用压电元件的变形来驱动从喷嘴喷出墨的压电型喷墨头的方法。驱动方法包括驱动压电元件的第一步骤，使得墨水的弯液面从喷嘴的初始位置退回到喷嘴内的第一位置，驱动压电元件的第二步骤，弯液面从喷嘴内的第一位置快速前进到第二位置，并且驱动压电元件使得弯液面从第二位置缓慢前进到初始位置的第三步骤。在第二步骤中通过改变从第一位置到第二位置的移动量来改变墨颗粒的颗粒量。

3. 发明授权

EP0812689B1 Method of driving piezoelectric type ink jet head 失效
标题翻译：一种用于驱动压电致动器的方法
公开(公告)号：EP0812689B1
公开(公告)日：1999-09-08
申请号：EP97304028.0
申请日：1997-06-10
申请人： FUJITSU LIMITED
发明人： Nakamura, Shigeyoshi , Nou, Hiroshi , Semba, Satoshi , Mikami, Tomohisa
IPC分类号： B41J2/045 , B41J2/21
CPC分类号： B41J2/04541 , B41J2/04563 , B41J2/04581 , B41J2/04588 , B41J2/2128

4. 发明公开

EP0865921A2 Piezoelectric element driving circuit and ink jet recording apparatus 失效
标题翻译：驱动电路，用于压电元件和喷墨式记录装置
公开(公告)号：EP0865921A2
公开(公告)日：1998-09-23
申请号：EP97305778.9
申请日：1997-07-31
申请人： FUJITSU LIMITED
发明人： Nakamura, Shigeyoshi , Moroo, Jun , Nou, Hiroshi
IPC分类号： B41J2/045
CPC分类号： B41J2/0452 , B41J2/04541 , B41J2/04581 , B41J2/04588
摘要： A piezoelectric element driving circuit drives a plurality of piezoelectric elements having common electrodes and independent electrodes which are driven independently. The piezoelectric element driving circuit includes a first switch circuit (25; 25-1 to 25-n) enabling each of a plurality of piezoelectric elements of a first piezoelectric element group (34) having the common electrodes coupled in common in response to a first enable signal, a second switch circuit (26) enabling each of a plurality of piezoelectric elements of a second piezoelectric element group (35) in response to a second enable signal, where the piezoelectric elements of the second piezoelectric element group are different from the piezoelectric elements of the first piezoelectric element group, and a driving circuit part (31, 32, 33-1 to 33-n) driving in common the independent electrodes of the corresponding piezoelectric elements of the first and second piezoelectric element groups based on recording data.

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