JP2007210296A5 - - Google Patents

Claims (6)

A discharge port for discharging ink, a heater provided for discharging the ink, a foaming chamber in which bubbles are generated by the heater, and a supply for supplying ink to the discharge port and the foaming chamber A nozzle row in which a plurality of nozzles having a path are arranged;
In the ink jet recording head and a common liquid chamber for supplying ink to the supply passage communicates with the supply passage,
The heaters are arranged in the foaming chambers of the nozzles, and are located on the side of the common liquid chamber with respect to the first heaters. A heater ,
Temperature detecting means for detecting the temperature of the ink in the nozzle or the ink jet recording head;
The first heater is selectively heated when the temperature detected by the temperature detecting means is normal temperature, and the second heater is selectively heated when the temperature detected by the temperature detecting means is higher than the normal temperature. the ink jet recording head is characterized in that and a control means for switching the blowing position in the foaming chamber. 2. The ink jet recording head according to claim 1 , wherein a plurality of the heaters including at least the first heater and the second heater are arranged along a direction orthogonal to an arrangement direction of the nozzle rows. Said control means, said as to gradually raising the normal temperature, an ink jet recording head according to claim 2 for moving the position stepwise to the common liquid chamber side of the heater to be heated. The foaming chamber of each nozzle is positioned on the common liquid chamber side with respect to the first heater and the other heaters, which are located opposite to the discharge ports, and with respect to the first heater and the other heaters. A second heater and a further heater are arranged;
The control means selectively heats the first heater and the other heaters at room temperature, selectively heats the second heater and the other heaters at the time of the temperature rise, The ink jet recording head according to claim 1, wherein the foaming position is switched . Before SL when normal temperature and the Atsushi Nobori, the ink jet recording head according to any one of to the total area of the region contributing to the foaming by the heater to be heated claims 1 being constant 4. A discharge port for discharging ink, a heater provided for discharging the ink, a foaming chamber in which bubbles are generated by the heater, and a supply for supplying ink to the discharge port and the foaming chamber A nozzle row in which a plurality of nozzles having a path are arranged ;
A common liquid chamber that communicates with the supply path and supplies ink to the supply path .
The heaters are arranged in the foaming chambers of the nozzles, and are located on the side of the common liquid chamber with respect to the first heaters. An inkjet recording method for performing recording by discharging ink from an inkjet recording head , comprising a heater ,
The first heater is selectively heated when the temperature of the ink in the nozzle or the ink jet recording head is normal temperature, and the second heater is selectively heated when the temperature is higher than normal temperature. An ink jet recording method comprising switching a foaming position in a room.