| 摘要 |
PURPOSE:To easily densify electrode arrangement to a high degree, by opposing two electrode substrates each having electrode patterns which are formed thereto at pitches twice electrode arranging pitches when arranged on a toner conveying surface so as to arrange electrode patterns alternately. CONSTITUTION:Two sheets each of which is fabricated by forming electrode patterns on an insulating film 14 from a magnetic material 15 by a hot etching method are mutually opposed, allowed to approach to each other and adhered. For example, even if each electrode width (b) set to 31mum, the interval (a') between adjacent electrodes comes to 93mum and the electrode can be fabricated with a sufficient surplus. In addition, if an insulating layer 19 is thinly coated, even if the electrode width (b) is further widened to be brought to 50mum, the interval (a') between electrodes can be taken widely, for example, can be brought to 74mum and, therefore, the sufficient plating or photoetching of the magnetic material can be performed. As a result, the volume of the magnetic material 15 is increased and electrode function is enhanced. |
