| 摘要 |
PURPOSE:To make it possible to obtain noiseless and high quality recording, in a magnetic fluid recording device which is designed to obtain recording image by allowing a magnetic fluid ink fly by Coulomb's force, by providing a discharging circuit for a stylus and a charging circuit for a gate. CONSTITUTION:In a magnetic fluid recording device which is so designed that a gate 1 and a stylus 2 are arranged through a recording paper 3, the gate 1 is equipped with image signal voltage, the stylus 2 is equipped with a record driving circuit for impression of control voltage, while the stylus 2 is supplied with an ink composed of magnetic fluid and printing is performed by flying the ink on the stylus electrode 2 by the control of the record driving circuit. A discharging circuit is provided on a stylus drive circuit for making forced discharge of the electric charge accumulated on the stylus 2, and a gate drive circuit is equipped with a charging circuit. By executing discharge after completion of inputting control signal and image signal onto the stylus and the gate, deformations in the output voltage wave are removed and noiseless recording is obtained. |
