| 摘要 |
PURPOSE:To prevent uneven printing or missing of an image by arranging a plurality of needle electrodes such that recording heads juxtaposed on an insulative substrate are inclined against an ink supporter. CONSTITUTION:A needle electrode 31 comprises nickel wires having the diameter of 50mum arranged in main scanning direction of an ink medium 11 at a the density of 12-16 pieces/mm where the front and rear thereof are adhered to insulative substrate 32, 33. A recording head 37 pressure contacts the recording face 38 at the lower end thereof against an ink supporter 12 with proper pressing force under the condition where the upper end is positioned in the front side. Since the lower end of the recording head 37 directs toward the opposite side from the advancing direction of the ink medium 11 and pressure contacts with the ink supporter 12, the pressure contacting force to be applied from the recording head onto the ink supporter 12 functions in the enlarging direction when the ink medium 11 moves and slides against the recording head 37, thereby the recording face 38 and the ink supporter 12 contact reliably thus performing a stable printing of an image. |
