EP 0629503 A2 19941221 - Inkjet recording apparatus having electrostatic actuating means and method of controlling it.
Title (en)
Inkjet recording apparatus having electrostatic actuating means and method of controlling it.
Title (de)
Tintenstrahlaufzeichnungsgerät mit elektrostatischem Betätiger und Verfahren zu seiner Steuerung.
Title (fr)
Appareil d'enregistrement par jet d'encre avec actionneur électrostatique et son procédé de commande.
Publication
Application
Priority
JP 14521293 A 19930616
Abstract (en)
An inkjet recording apparatus is provided with an inkjet head having a nozzle (4) , an ink passage (6, 7, 8) that is connected to the nozzle, and an electrostatic actuator composed of a diaphragm (5) that is provided in a part of the ink passage and an electrode (21) placed outside of the ink passage opposite to the diaphragm. Recording is performed by moving the diaphragm by means of an electrostatic force generated by applying a voltage to the actuator thereby ejecting ink droplets from the nozzle. A drive circuit for the actuator comprises a timing pulse generator, a charge circuit and a discharge circuit. The drive circuit controls an amount of charge to be supplied to the actuator as well as the charge rate, preferably corresponding to environmental operating conditions of the recording apparatus. Thus a durably stable and precise ink ejection can be realized. <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/045 (2006.01); B41J 2/08 (2006.01); B41J 2/14 (2006.01)
CPC (source: EP)
B41J 2/04541 (2013.01); B41J 2/04553 (2013.01); B41J 2/04566 (2013.01); B41J 2/0457 (2013.01); B41J 2/04578 (2013.01); B41J 2/08 (2013.01); B41J 2/14314 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0629503 A2 19941221; EP 0629503 A3 19950816; EP 0629503 B1 19980902; DE 69412917 D1 19981008; DE 69412917 T2 19990401; SG 79907 A1 20010417
DOCDB simple family (application)
EP 94109195 A 19940615; DE 69412917 T 19940615; SG 1996004191 A 19940615