| 摘要 |
PURPOSE:To inexpensively obtain a back electrode suitable for obtaining a high quality recording image, by constituting the back electrode so as to have such a structure that an electric conductive fine wire is provided under tension in parallel to the longitudinal direction of a slit like ink jet orifice. CONSTITUTION:A back electrode 11 is obtained by fixing one end of an electric conductive fine wire to the back electrode fixing member 15 provided between back electrode tensioning mount substrates 13, 14 and connecting the other end thereof to a fine wire take-up mechanism to wind the fine wire around said take-up mechanism and providing the electric conductive fine wire between back electrode support members 12, 12' under tension. The back electrode 11 is regulated and fixed so that the end surfaces of the back electrode tensioning mount substrates 13, 14 on the side opposed to an ink recording head, that is, the end surface of the back electrode 11 on the tensioning mount side thereof becomes a plane containing a straight line A-A, and recording paper 4 is fed in the state brought into contact with the end surfaces of the back electrode substrates 13, 14. The leading end parts of the recording electrodes 21 arranged at predetermined arrangement density in the longitudinal direction of a slit like ink jet orifice are arranged in the slit like ink jet orifice in parallel to the back electrode 11 mounted under tension. |
