| 摘要 |
PROBLEM TO BE SOLVED: To provide stable discharge amount from various kinds of discharge openings discharging different discharge amount of ink, by controlling initial discharging performance and reduction of image quality such as streaks and unevenness caused by variation of color density or color tone in an inkjet recording head having plural kinds of discharge amount. SOLUTION: A heating resistor 500 for heating is formed on a recording element substrate 1,100 through a heating resistor 219 for discharge and an insulating layer 216 with respect to the laminated direction of structured layers of the recording element substrate 1,100 so as to be disposed between the heating resistor 219 for discharge and an ink flow path 1104, and has a first heating resistor for heating disposed in a first discharge opening array part which is high in discharge amount and a second heating resistor for heating disposed in a second discharge opening array part which is low in discharge amount. And, each heat release amount of the first heating resistor for heating and the second heating resistor for heating is each controlled individually. COPYRIGHT: (C)2009,JPO&INPIT |
