| 摘要 |
PURPOSE:To reduce the number of parts and avoid unnecessary pressurizing and heat generation by pressurizing ink by a repulsing force between the fixed core of a magnet coil and a permanent magnet and sucking ink by the returning force of a spring, etc. CONSTITUTION:By flowing a current through a magnet coil 22 to repulse a fixed core 21 and a permanent magnet 27 and press down the permanent magnet 27, ink in an ink chamber 24 is pressurized by a bellowphragm 23. If the electromagnetization of the magnet coil 22 is stopped, the permanent magnet 27 is pushed up by the returning force of a spring 31, the bellowphragm 23 rises and the ink chamber 24 becomes of negative pressure. |
