Write head control device for ink jet printer utilizing liquid metal and method thereof

摘要

To maintain a temperature of a liquid metal mass utilized in a write head for an ink jet printer, an improved control device is disclosed which comprises a heating element and a temperature sensor element. In the disclosure, there is provided a write hood device in an ink printer equipment having at least an ink storage chamber inside body of the head, a nozzle for ejecting an ink droplet at one portion of the chamber, an ink channel formed to connect the chamber and an ink cartridge, a pair of electrodes provided at another portion of the chamber and each disposed opposite to each other for charging a liquid metal mass with electricity, a pair of magnetic substances symmetrically disposed to face each other and disposedly arranged at an angle of 90. degree.; with respect to the magnetic substances, wherein said liquid metal mass movably contained at the bottom of the chamber for purging ink to discharge an ink, droplet, said write head comprising; a temperature sensor element for sensing a temperature at a predetermined portion of said write head: and a heating element provided at a predetermined location of said write head, for maintaining the temperature of said liquid metal at a level beyond a prescribed degree by way of directly warming said ink, whereby the temperature of said liquid metal holds a degree of substantially constant level beyond a melting point. As a result, a liquid metal holds the temperature at a substantially constant value during a normal mode of operation, maintaining its phase in liquid state, thereby enhancing the performance of the printer.