Patent ID: 6079822
Filing Date: 2000-06-27
Classification: B41J

Abstract:
A method for driving a printer apparatus having a print head with a first pressure chamber into which a quantitative medium is introduced, a second pressure chamber into which a discharge medium is introduced, a first nozzle in communication with said first pressure chamber and a second nozzle in communication with said second pressure chamber wherein the first and second nozzles penetrate through a plate member and opening parts of both said first and second nozzles are side by side, a first pressure applying element for pushing out the quantitative medium by applying pressure to the quantitative medium in said first pressure chamber and a second pressure applying element for discharging the discharge medium by applying pressure to the discharge medium in said second pressure chamber, the driving method comprising the steps of:operating said first pressure applying clement to push out the quantitative medium from a stationary state so as to cause the quantitative medium to ooze from said first nozzle to the opening part of said second nozzle on said plate member;operating said second pressure applying element to discharge the discharge medium from the opening part of said second nozzle so as to discharge the quantitative medium and the discharge medium; andcompleting operation of said first pressure applying element is followed by the completion of operation of said second pressure applying element.