EP 0947327 A3 20010314 - Ink-jet print head, driving method thereof and ink-jet printer using the same
Title (en)
Ink-jet print head, driving method thereof and ink-jet printer using the same
Title (de)
Tintenstrahldruckkopf, Antriebsverfahren dafür und Tintenstrahldrucker mit einem solchen
Title (fr)
Tête d'impression à jet d'encre, procédé de commande et imprimante à jet d'encre utilisant une telle tête
Publication
Application
Priority
JP 8996998 A 19980402
Abstract (en)
[origin: EP0947327A2] In an ink-jet print head, a plurality of sets of pressure chambers (6a, b, c) and supply paths (7a, b, c) are provided to be connected to one another in series between a nozzle (5) and an ink pool (8). Piezoelectric transducers (1a, b, c) are arranged to be opposite to the respective pressure chambers. A driving circuit therefor sequentially applies voltage waveforms to the piezoelectric transducers starting from a piezoelectric transducer provided in the first pressure chamber connected to the ink pool to piezoelectric transducers of the nozzle-side adjacent pressure chambers. At this moment, the piezoelectric transducers provided in the nozzle-side pressure chambers are applied with voltage waveforms delayed in phase by 1/2 of natural periods of pressure waves in the pressure chambers. <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/045 (2006.01); B41J 2/14 (2006.01)
CPC (source: EP)
B41J 2/04573 (2013.01); B41J 2/04581 (2013.01); B41J 2/04588 (2013.01); B41J 2/14233 (2013.01); B41J 2002/14338 (2013.01)
Citation (search report)
- [A] EP 0738599 A2 19961023 - SEIKO EPSON CORP [JP]
- [A] DE 4201923 A1 19920806 - FUJI ELECTRIC CO LTD [JP]
- [DA] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31)
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 0947327 A2 19991006; EP 0947327 A3 20010314; AU 2354899 A 19991014; AU 739877 B2 20011025; CA 2267921 A1 19991002
DOCDB simple family (application)
EP 99106686 A 19990401; AU 2354899 A 19990401; CA 2267921 A 19990401