| 摘要 |
PURPOSE:To prevent ink from leaking outside an ink feed container by making the feed container a sealed structure, by using a permanent magnet as a detection mechanism of ink run-out. CONSTITUTION:One end part 6a of a movable ink end detection lever 6 is brought into contact with an upper face of an ink reserving bag 2, and a permanent magnet 7 is attached to the end part 6a opposed thereto. As an ink 3 is being consumed, the contact part 6a gradually falls, and the end part 6a to which the permanent magnet 7 is attached is reversely moved upwards. Then, a magnetic sensor is established at a position capable of detecting magnetism emitted from the permanent magnet 7 when the permanent magnet 7 has risen to a specific position, and the sensor informs a user of an end of the ink when the ink 3 reaches a specific amount. |
