| 摘要 |
PURPOSE:To eliminate the clogging of hole and the decrease of thermal conduction efficiency owing to drying of ink, by a method wherein the recessed part capable of keeping ink is formed on the opposed surface side of the endless belt having many holes to a thermal head and the front part of the thermal head is made to enter into this recessed part. CONSTITUTION:A recessed part 3 is formed by etching on the opposed surface side of an endless belt 1 to a thermal head 4 and this recessed part 3 is made to be filled with ink 5 as well as a hole 2. The front part of thermal head 4 is settled to enter into the depressed part so as to be dipped into the ink 5 of the recessed part 3. When the belt 1 is rotated and the hole 2 filled with ink 5 reaches the position facing the thermal head 4, the ink 5 in the hole 2 is exhausted with the pressure of bubbles generated by quick heating of the thermal head 4 and is recorded on a recording paper 6. Thereafter, the belt 1 is filled up with ink 5 at an ink storage place and the recording is repeated. Because the recessed part 3, too, is filled with ink 5, the clogging of hole 2 is prevented. |
