EP 0947327 A2 19991006 - 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)
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)
Designated contracting state (EPC)
DE FR GB IT
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