EP 0775580 A3 19971022 - Print head for bubble jet printer
Title (en)
Print head for bubble jet printer
Title (de)
Druckkopf für eine mit Bläschen angetriebene Tintenstrahldruckvorrichtung
Title (fr)
Tête d'impression pour imprimante à projection d'encre par bulles
Publication
Application
Priority
- KR 19950043906 A 19951127
- KR 19960045118 A 19961010
Abstract (en)
[origin: EP0775580A2] A print head for a bubble jet printer which enables gray scale printing is provided. The print head includes a substrate having a predetermined ink chamber into which ink is supplied, a nozzle plate having a plurality of nozzles disposed above the substrate, a plurality of electrodes attached to the substrate, and a heat generating unit having a plurality of heat generating subunits corresponding to the nozzle and each connected to the plurality of electrodes. Therefore, the size of discharged ink bubbles is controlled by changing the area heated by the heat generating subunits. <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/05 (2006.01); B41J 2/14 (2006.01); B41J 2/16 (2006.01)
CPC (source: EP)
B41J 2/14072 (2013.01); B41J 2/1412 (2013.01)
Citation (search report)
- [XY] US 4251824 A 19810217 - HARA TOSHITAMI, et al
- [X] US 5172139 A 19921215 - SEKIYA TAKURO [JP], et al
- [Y] EP 0124312 A2 19841107 - HEWLETT PACKARD CO [US]
- [X] US 4965594 A 19901023 - KOMURO HIROKAZU [JP]
- [Y] PATENT ABSTRACTS OF JAPAN vol. 012, no. 141 (M - 691) 28 April 1988 (1988-04-28)
- [Y] PATENT ABSTRACTS OF JAPAN vol. 016, no. 026 (M - 1202) 22 January 1992 (1992-01-22)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0775580 A2 19970528; EP 0775580 A3 19971022; JP H09164683 A 19970624
DOCDB simple family (application)
EP 96308587 A 19961127; JP 31078296 A 19961121