Patent ID: 6036295
Filing Date: 2000-03-14
Classification: B41J

Abstract:
An ink jet printer head comprising:a first orifice which is filed with a transparent solvent and which communicates with a mixing chamber that is initially empty;a second orifice which is filled with an ink and which communicates with said mixing chamber;a water repellent material applied to said mixing chamber;means for quantifying and mixing said ink and said transparent solvent, said means for quantifying and mixing including first pressure generating means in communication with said second orifice and which causes an amount of ink to be discharged which is controlled in accordance with given density data, wherein said mixing chamber for mixing said transparent solvent and said ink receives said amount of ink after being discharged by said first pressure generating means; andmeans for discharging a liquid ink drop of a liquid mixed by said quantifying and mixing means, said means for discharging a liquid ink drop including a second pressure generating means, including a second heating element, in communication with said first orifice and which causes an amount of said liquid ink drop to be ejected from said mixing chamber.