Patent ID: 6513915
Filing Date: 2003-02-04
Classification: B41J

Abstract:
The ink-jet printer for forming an image by ejecting ink drops from an ejection port, sticking them onto a recording medium and forming dots, comprising(a) an ejection flow passage that decreases in sectional area toward the interior of the flow passage from the ejection port to a boundary that is a minimum sectional area of the flow passage, and that thereafter increases from the boundary further toward the interior; (b) draw-in means for drawing an ink front into the flow passage; and (c) push-out means for pushing said ink front from the flow passage, said draw-in means cooperating with said push-out means to eject a small ink drop having a diameter that is less than said minimum sectional area, said draw-in means and said push-out means cooperating such that said draw-in means draws in said ink front to a place in said flow passage where said sectional area increases, and thereafter said ink is pushed outward by said push-out means at such a speed as to leave from said boundary.