公开(公告)号：EP0811491A3

公开(公告)日：1998-08-19

申请号：EP97303928

申请日：1997-06-06

申请人： CANON KK

发明人： KIMURA MAKIKO ,  ASAKAWA YOSHIE ,  KASHINO TOSHIO ,  ISHINAGA HIROYUKI ,  TANAKA HIROKAZU ,  OKAZAKI TAKESHI ,  YOSHIHIRA AYA ,  KUDO KIYOMITSU

IPC分类号： B41J2/175 ,  B41J2/05 ,  B41J2/14

CPC分类号： B41J2/14145 ,  B41J2/14048 ,  B41J2002/14362 ,  B41J2002/14379 ,  B41J2002/14387 ,  B41J2202/12 ,  B41J2202/21

摘要： A liquid discharging method is provided with heat generating elements (2) for creating air bubbles for discharging liquid, discharge ports (18) arranged corresponding to the heat generating elements, first liquid flow paths (14) conductively connected with the discharge ports, second liquid flow paths (16) arranged corresponding to the heat generating elements, and a separation wall to separate the first and second liquid flow paths. This separation wall is provided with the free end, which is caused to be displaced to the first liquid flow side by pressure exerted by air bubbles created by the heat generating elements, thus leading the pressure toward the discharge port side for discharging liquid from the discharge ports. For this liquid discharging method, liquids are supplied to the second liquid flow paths and to the first liquid flow paths from different sides, respectively, in order to stabilize the flow of liquid for the enhancement of the discharging efficiency and power, while reducing the influence of cavitation with respect to the heat generating elements to make the life thereof longer.

摘要翻译： 一种喷液方法为用于排出液体产生气泡设置有发热元件，排出口布置为对应于发热元件，第一液流通道与喷口导通的，第二液体流动通道布置为对应于发热元件 和分离壁以分离第一和第二液体流动路径。 该分离壁设置有自由端，所有这一切都被导致通过由发热元件产生，从而导致朝排放口侧的压力为从排出排出液体的气泡施加的压力位移到第一液体流动侧 端口。 对于这种喷液方法，液体被提供给第二液体流动通道，并从不同的侧面，分别与第一液体流道，以稳定的液体排放效率和功率的提高的流动，同时减少了影响 相对于所述发热元件的气穴，使它们的更长的寿命。

公开(公告)号：EP0811489A3

公开(公告)日：1998-07-29

申请号：EP97303919

申请日：1997-06-06

申请人： CANON KK

发明人： KIMURA MAKIKO ,  ASAKAWA YOSHIE ,  TAKENOUCHI MASANORI ,  KASHINO TOSHIO ,  OKAZAKI TAKESHI ,  YOSHIHIRA AYA ,  KUDO KIYOMITSU

IPC分类号： B41J2/14 ,  B41J2/05

CPC分类号： B41J2/14056 ,  B41J2/14048

摘要： This specification discloses a liquid discharging method of discharging liquid from a discharge port by the use of a liquid discharging head having a flow path communicating with the discharge port (3), and a discharge energy generating element (5) provided in the flow path for causing energy for discharging the liquid to act on the liquid, having the step of driving the discharge energy generating element to thereby discharge the liquid from the discharge port, and the step of displacing the free end of the movable member (9) of a fluid element having an air bubble producing area disposed upstream of the discharge energy generating element in the flow path for producing an air bubble, and a movable member (9) provided in facing relationship with the air bubble producing area and provided with a fulcrum and a free end, by producing an air bubble in the air bubble producing area. The specification also discloses a liquid discharging head for carrying out such liquid discharging method. The specification further discloses a liquid discharging head cartridge having such liquid discharging head and a liquid container holding therein the liquid to be supplied to the liquid discharging head. The specification furthermore discloses an ink jet recording apparatus having such liquid discharging head and means for conveying a recording medium receiving the ink discharged from the liquid discharging head.

公开(公告)号：EP0578331B1

公开(公告)日：1997-12-29

申请号：EP93202400

申请日：1990-09-17

申请人： CANON KK

发明人： SAIKAWA HIDEO ,  KARITA SEIICHIRO ,  KASHINO TOSHIO ,  SAITO AKIO ,  NAKAGOMI HIROSHI ,  ARASHIMA TERUO ,  KIMURA MAKIKO ,  SUGITANI HIROSHI ,  HATTORI YOSHIFUMI ,  IKEDA MASAMI ,  IZUMIDA MASAAKI ,  TANAKA SHIGEAKI ,  KUWABARA NOBUYUKI ,  SAITO ASAO ,  MASUDA KAZUAKI ,  ORIKASA TSUYOSHI

IPC分类号： B41J2/175

CPC分类号： B41J2/1752 ,  B41J2/17506 ,  B41J2/17513

公开(公告)号：EP0631869A4

公开(公告)日：1995-05-17

申请号：EP93922649

申请日：1993-10-18

申请人： CANON KK

发明人： KIMURA MAKIKO ,  SUGITANI HIROSHI ,  SUGAMA SADAYUKI ,  ISHINAGA HIROYUKI

IPC分类号： B41J2/14 ,  B41J2/16 ,  B41J2/165 ,  B41J2/135

CPC分类号： B41J2/16538 ,  B41J2/14 ,  B41J2/14016 ,  B41J2/14201 ,  B41J2/1433 ,  B41J2/1606 ,  B41J2/1652 ,  B41J2002/14475 ,  B41J2002/16502 ,  B41J2202/03

摘要： This invention is directed to prevent an ink jet inactivation state which is induced when ink droplets adhering to the jet port surface of an ink jet head reach the jet port, and is characterized by including a water repellent region in the proximity of the jet port disposed on the jet port surface and a groove-like hydrophilic region inside a region spaced apart by a predetermined distance from the jet port and adjacent to the water repelling region. Since the groove-like hydrophilic region is disposed, the ink droplets adhering to the jet port surface can be taken into the hydrophilic region. Accordingly, excellent recording can be accomplished even under the condition of high speed recording and high frequency driving.