EP 0749834 A2 19961227 - Ink-jet print head with integrated driving components
Title (en)
Ink-jet print head with integrated driving components
Title (de)
Tintenstrahldruckkopf mit integrierten Betätigungskomponenten
Title (fr)
Tête d'impression à jet d'encre avec composants de commande intégrés
Publication
Application
Priority
IT TO950521 A 19950622
Abstract (en)
In an ink jet printhead (100) comprising ejection resistors (Ri) and MOS transistors (TRi) for supplying the resistors the energy for ejecting droplets of ink, integrated on the same semiconductor substrate, a given range of values is defined for the ratio of the channel resistance (Rc) during conduction of the MOS transistor to the resistance (R) of the ejection resistor so that the energetic operating point (El) of the ejection resistor is automatically compensated for variations in temperature (Ts) of the substrate, thereby assuring quality of printing and preventing ejection resistor conditions of operation liable to damage the resistor itself. <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/05 (2006.01)
CPC (source: EP)
B41J 2/04515 (2013.01); B41J 2/0454 (2013.01); B41J 2/04541 (2013.01); B41J 2/0458 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0749834 A2 19961227; EP 0749834 A3 19970723; EP 0749834 B1 20010404; DE 69612327 D1 20010510; DE 69612327 T2 20011129; IT 1276431 B1 19971031; IT TO950521 A0 19950622; IT TO950521 A1 19961222; JP 3795959 B2 20060712; JP H091800 A 19970107
DOCDB simple family (application)
EP 96109564 A 19960614; DE 69612327 T 19960614; IT TO950521 A 19950622; JP 15368496 A 19960614