| 摘要 |
PURPOSE:To ensure a long life with a simple construction by providing a latent carrier moving endlessly and a multistylus head having a compressed gas injection port containing a recording electrode arranged at a specified position for the outer circumference thereof. CONSTITUTION:As introduced from pipes 20 and 21 and passed through air holes 18 and 19 of a multistylus head 17, a compressed air proceeds in the direction of the arrow D and then, branches off in the directions of the arrows E and F from between the multistylus head 17 and a drum 16. As the compressed air passes the circumferential surface of the drum 16, the multistylus head 17 moves in the direction G and is balanced with a pressing force of plate springs 23 and 24 in the direction of the drum 16 to generate an air gap of DELTAa between the drum 16 and the multistylus head 17. This air gap DELTAa is a fixed value in case the pressure of the compressed air introduced is under a certain condition. |
