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1. EP1634706 - LIQUID JET DEVICE AND LIQUID JET METHOD

Office
European Patent Office
Application Number 04746236
Application Date 16.06.2004
Publication Number 1634706
Publication Date 15.03.2006
Publication Kind B1
IPC
B41J 2/01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, 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
B41J 2/05
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, 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
05produced by the application of heat
B41J 2/14
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, 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
CPC
B41J 2/04505
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
04505aiming at correcting alignment
B41J 2/04526
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
04526controlling trajectory
B41J 2/04533
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
04533controlling a head having several actuators per chamber
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
B41J 2/04578
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
04578controlling heads based on electrostatically-actuated membranes
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
Applicants SONY CORP
Inventors KUWAHARA SOICHI
TAKENAKA KAZUYASU
USHINOHAMA IWAO
IKEMOTO YUICHIRO
Designated States
Priority Data 2003170269 16.06.2003 JP
Title
(DE) FLÜSSIGKEITSSTRAHLVORRICHTUNG UND FLÜSSIGKEITSSTRAHLVERFAHREN
(EN) LIQUID JET DEVICE AND LIQUID JET METHOD
(FR) DISPOSITIF A JET LIQUIDE ET PROCEDE DE JET LIQUIDE
Abstract
(EN) Even when ejection characteristics of ink droplets are dispersed between unit heads and when arrangement accuracies of unit heads are dispersed, stripe unevenness is alleviated by correction corresponding to each unit head. In a liquid ejection apparatus having a line head (10) arranged by juxtaposing a plurality of (unit) heads (11) of liquid ejection parts so as to connect the head (11) to the adjacent head (11), the liquid ejection apparatus includes ejection direction changing means for enabling the ejection direction of liquid droplets ejected from a nozzle of each liquid ejection part to change in a plurality of directions in the arranging direction of liquid ejection parts and reference direction setting means for individually setting one reference principal direction for each head (11) among a plurality of ejection directions of liquid droplets by the ejection direction changing means. In the (N-1)th and the (N+1)th head 11, the third ejection direction from the left is established as the principal direction while in the Nth head 11, the second ejection direction from the right is established as the principal direction.
(FR) Les défauts de traînée de racle sont réduits par la correction dans chaque tête d'unité même s'il existe une variation de la caractéristique du jet des gouttelettes d'encre parmi les têtes d'unité et même si la précision de disposition des têtes d'unité varie. Un dispositif à jet liquide comprend une tête de ligne (10) dans laquelle sont disposées côte-à-côte des têtes d'unité (11). Le dispositif à jet liquide comprend en outre des moyens de changement de la direction du jet permettant de changer la direction du jet d'une gouttelette liquide éjectée par une buse de chaque partie de jet liquide dans une direction parallèle à la direction de disposition des parties de jet liquide et des moyens de définition de la direction de référence permettant de définir une direction principale servant de référence que l'on peut modifier avec les moyens de changement de direction du jet individuellement pour chaque tête d'unité (11). La direction du jet de la troisième partie de jet liquide dans chacune des têtes « <I>N-1 </I>»ème et « <I>N+1</I> »ème (11) et la direction principale, et la direction du jet de la seconde partie de jet liquide de la tête « <I>N</I> »ème (11) est la direction principale.