LIQUID FOR LIQUID DISCHARGE HEAD, LIQUID DISCHARGE USING THIS LIQUID, AND LIQUID DISCHARGE HEAD

摘要

PROBLEM TO BE SOLVED: To eliminate the interference of a coloring material with the movement of a movable member and also prevent the coloring material from being mixed into a bubble generating area by making the granular diameter of a coloring material contained in a first liquid used for a liquid discharge head which guides a bubble to the discharge orifice side by a movable member larger than the width of a slit between the movable member and its periphery. SOLUTION: A first liquid (discharging liquid) is supplied to a first common liquid chamber 15 and then to a first liquid flow path 14 through a first liquid supply path 20 as shown by an arrow mark C, while a second liquid (blowing liquid) is supplied to a second supplied liquid chamber 17 and then to a second liquid flow path 16 through a second liquid supply path 21 as shown by an arrow mark D. The liquid as the discharging liquid is required to have a coloring material whose granular diameter is larger than the width of a slit between a movable member 31 and its periphery. Thus there are no possibilities that the coloring material should interfere with the slit part and consequently, the operation of the movable member 31 should be hampered. In addition, there is no fear that the coloring material should be mixed with the blowing liquid side, hence no problem such as scorching or deposition of the coloring material on a heater.