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1. WO2000043210 - INK JET RECORDING HEAD DRIVING METHOD AND CIRCUIT THEREFOR

Publication Number WO/2000/043210
Publication Date 27.07.2000
International Application No. PCT/JP2000/000150
International Filing Date 14.01.2000
Chapter 2 Demand Filed 14.01.2000
IPC
B41J 2/045 2006.01
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
015characterised by the jet generation process
04generating single droplets or particles on demand
045by pressure, e.g. electromechanical transducers
B41J 2/21 2006.01
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
21for multi-colour printing
CPC
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 2/04581
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
04581controlling heads based on piezoelectric elements
B41J 2/04588
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
04588using a specific waveform
B41J 2/04593
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
04593Dot-size modulation by changing the size of the drop
B41J 2/2128
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
21for multi-colour printing
2121characterised by dot size, e.g. combinations of printed dots of different diameter
2128by means of energy modulation
Applicants
  • NEC CORPORATION [JP/JP]; 7-1 Shiba 5-chome Minato-ku, Tokyo 108-8001, JP (AllExceptUS)
  • TAKIZAWA, Fuminori [JP/JP]; JP (UsOnly)
Inventors
  • TAKIZAWA, Fuminori; JP
Agents
  • MARUYAMA, Takao; Maruyama Patent Office Sam Building, 3rd floor 38-23, Higashi-Ikebukuro 2-chome Toshima-ku, Tokyo 170-0013, JP
Priority Data
11/1623525.01.1999JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) INK JET RECORDING HEAD DRIVING METHOD AND CIRCUIT THEREFOR
(FR) PROCEDE D'ENTRAINEMENT DE TETE D'ENREGISTREMENT A JET D'ENCRE ET CIRCUIT CORRESPONDANT
Abstract
(EN)
A high-quality gray scale printing is attained by using an ink jet recording head having a simple and low-cost configuration and a general-purpose structure, and ink having common components. An ink jet recording head driving method comprising repeating a plurality of times a dot forming process for forming a plurality of dots on a recording medium, while an ink jet recording head (1) is moved in a sub-scanning direction; the process comprising the steps of moving the ink jet recording head (1) in a main scanning direction, generating a plurality of drive waveform signals according to a jet amount of ink droplets, selecting any one or none of the plurality of waveform signals for each of a plurality of nozzles according to gray scale information of printing data, and applying voltage to corresponding piezoelectric actuators (71 to 74).
(FR)
On obtient une haute qualité d'impression sur l'échelle des gris en utilisant une tête d'enregistrement à jet d'encre de configuration simple et peu onéreuse et de structure polyvalente, et en utilisant par ailleurs de l'encre à composants communs. Le procédé considéré consiste à entraîner une tête d'enregistrement à jet d'encre pour répéter plusieurs fois un processus de formation de points sur un support d'enregistrement, tandis que la tête (1) considérée se déplace dans une direction de balayage secondaire. On déplace ladite tête (1) dans une direction de balayage principale, ce qui engendre une série de signaux d'entraînement en fonction d'une quantité de gouttelettes de jet d'encre, puis on choisit l'un quelconque ou aucun des signaux pour l'une des buses, selon l'information d'échelle des gris correspondant aux données d'impression, et on applique une tension à des actionneurs piézo-électriques correspondants (71 à 74).
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