Patent ID: 6817694
Filing Date: 2004-11-16
Classification: B41J

Abstract:
An ink-jet imaging apparatus having a printing head having plural nozzles for ink ejection, and first ink ejection elements formed respectively near each of the nozzles for ejecting the ink from the nozzle; and forming an image by driving the first ink ejection element to eject the ink, wherein the inkjet imaging apparatus comprises:second ink ejection elements formed respectively upstream against the ink ejection direction before the first ink ejection element for ejecting the ink from the nozzles, and a controller which drives, on prescribed ejection recovery, the first ink ejection elements and the second ink ejection elements simultaneously to eject the ink through the nozzles for ink ejection recovery, wherein the controller functions to change timing of ink ejection of the ink ejection element in correspondence with the shape of the ink liquid face at the outlet of the nozzle, wherein the ink ejection element is operated at a time of a maximum outwardly extension of the ink liquid face for providing a greater volume of ink ejection for recovery purposes.