Global Patent Index - EP 0936070 A3

EP 0936070 A3 20000517 - Liquid ejecting method and liquid ejecting head

Title (en)

Liquid ejecting method and liquid ejecting head

Title (de)

Flüssigkeitsausstossverfahren und Flüssigkeitsausstosskopf

Title (fr)

Méthode d'éjection de liquide et tête d'éjection de liquide

Publication

EP 0936070 A3 (EN)

Application

EP 99300925 A

Priority

  • JP 2887998 A
  • JP 2883599 A

Abstract (en)

[origin: EP0936070A2] A liquid ejecting method using a liquid ejecting head having electrothermal transducer elements for generating thermal energy sufficient to create bubbles in liquid and ejection outlets disposed opposed to the electrothermal transducer elements which are arranged at a density not less than 300 per 25.4mm in a line, the liquid ejection head also having liquid flow paths in fluid communication with the ejection outlets, respectively, wherein the bubble generated by the thermal energy generated by the electrothermal transducer element is brought into communication with ambience while an internal pressure of the bubble is less than an ambient pressure, and wherein droplets having volumes not more than 15x10<-15>m<3> are ejected at a frequency not less than 7kHz, said method includes the improvement wherein the liquid flow path of the liquid ejecting head has a height not less than 6 mu m, and a distance between an upper surface and a lower surface of the ejection outlet is not more than one half of a minimum opening distance through a center of the ejection outlet. <IMAGE>

IPC 1-7

B41J 2/14

IPC 8 full level

B41J 2/05 (2006.01); B41J 2/14 (2006.01)

CPC (source: EP)

B41J 2/14024 (2013.01); B41J 2/1404 (2013.01); B41J 2002/14169 (2013.01); B41J 2002/14387 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0936070 A2 19990818; EP 0936070 A3 20000517; AU 1637799 A 19990826; CA 2261375 A1 19990810; CA 2261375 C 20030826; CN 1120087 C 20030903; CN 1233561 A 19991103; CN 1269643 C 20060816; CN 1493457 A 20040505; JP H11291500 A 19991026; KR 100320689 B1 20020119; KR 19990072572 A 19990927

DOCDB simple family (application)

EP 99300925 A 19990209; AU 1637799 A 19990210; CA 2261375 A 19990208; CN 03155459 A 19990210; CN 99101791 A 19990210; JP 2883599 A 19990205; KR 19990004765 A 19990210