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1. EP3717246 - CIRCUITS MULTIPLES COUPLÉS À UNE INTERFACE

Office
Office européen des brevets (OEB)
Numéro de la demande 19706138
Date de la demande 06.02.2019
Numéro de publication 3717246
Date de publication 07.10.2020
Type de publication B1
CIB
B41J 2/045
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
41IMPRIMERIE; LIGNARDS; MACHINES À ÉCRIRE; TIMBRES
JMACHINES À ÉCRIRE; MÉCANISMES D'IMPRESSION SÉLECTIVE, c. à d. MÉCANISMES IMPRIMANT AUTREMENT QUE PAR UTILISATION DE FORMES D'IMPRESSION; CORRECTION D'ERREURS TYPOGRAPHIQUES
2Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus
005caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression
01à jet d'encre
015caractérisés par le procédé de formation du jet
04en produisant à la demande des gouttelettes ou des particules séparées les unes des autres
045par pression, p.ex. à l'aide de transducteurs électromécaniques
B41J 2/14
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
41IMPRIMERIE; LIGNARDS; MACHINES À ÉCRIRE; TIMBRES
JMACHINES À ÉCRIRE; MÉCANISMES D'IMPRESSION SÉLECTIVE, c. à d. MÉCANISMES IMPRIMANT AUTREMENT QUE PAR UTILISATION DE FORMES D'IMPRESSION; CORRECTION D'ERREURS TYPOGRAPHIQUES
2Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus
005caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression
01à jet d'encre
135Ajutages
14Leur structure
CPC
B41J 2/04555
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
015characterised by the jet generation process
04generating single droplets or particles on demand
045by pressure, e.g. electromechanical transducers
04501Control methods or devices therefor, e.g. driver circuits, control circuits
04555detecting current
B41J 2/04563
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
015characterised by the jet generation process
04generating single droplets or particles on demand
045by pressure, e.g. electromechanical transducers
04501Control methods or devices therefor, e.g. driver circuits, control circuits
04563detecting head temperature; Ink temperature
B41J 2/0458
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
015characterised by the jet generation process
04generating single droplets or particles on demand
045by pressure, e.g. electromechanical transducers
04501Control methods or devices therefor, e.g. driver circuits, control circuits
0458controlling heads based on heating elements forming bubbles
B41J 2/14072
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
135Nozzles
14Structure thereof ; only for on-demand ink jet heads
14016Structure of bubble jet print heads
14072Electrical connections, e.g. details on electrodes, connecting the chip to the outside...
B41J 2/14153
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
135Nozzles
14Structure thereof ; only for on-demand ink jet heads
14016Structure of bubble jet print heads
14153Structures including a sensor
B41J 2/04541
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
015characterised by the jet generation process
04generating single droplets or particles on demand
045by pressure, e.g. electromechanical transducers
04501Control methods or devices therefor, e.g. driver circuits, control circuits
04541Specific driving circuit
Déposants HEWLETT PACKARD DEVELOPMENT CO
Inventeurs GARDNER JAMES MICHAEL
LINN SCOTT A
CUMBIE MICHAEL W
États désignés
Titre
(DE) MIT EINER SCHNITTSTELLE GEKOPPELTE MEHRFACHSCHALTUNGEN
(EN) MULTIPLE CIRCUITS COUPLED TO AN INTERFACE
(FR) CIRCUITS MULTIPLES COUPLÉS À UNE INTERFACE
Abrégé
(EN)
An integrated circuit to drive a plurality of fluid actuation devices includes an interface, a first sensor, a second sensor, and control logic. The interface is to connect to a single contact pad of a host print apparatus. The first sensor is of a first type and is coupled to the interface. The second sensor is of a second type and is coupled to the interface. The second type is different from the first type. The control logic enables the first sensor or the second sensor to provide an enabled sensor. A voltage bias or a current bias applied to the interface generates a sensed current or a sensed voltage, respectively, on the interface indicating the state of the enabled sensor.

(FR)
La présente invention concerne un circuit intégré pour commander une pluralité de dispositifs d'actionnement de fluide qui comprend une interface, un premier capteur, un second capteur et une logique de commande. L'interface doit être connectée à un seul plot de contact d'un appareil d'impression hôte. Le premier capteur est d'un premier type et est couplé à l'interface. Le second capteur est d'un second type et est couplé à l'interface. Le second type est différent du premier type. La logique de commande permet au premier capteur ou au second capteur de fournir un capteur activé. Une polarisation de tension ou une polarisation de courant appliquée à l'interface génère un courant détecté ou une tension détectée, respectivement, sur l'interface indiquant l'état du capteur activé.

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