| 摘要 |
<p>PURPOSE:To provide the developing method by which a satisfactory picture quality is obtained even when plain paper is used, by a simple constitution. CONSTITUTION:In the developing method for developing a toner image on the surface of an image carrier 1 by radiating an optical signal from the back of the image carrier 1 by providing the image carrier 1 consisting of an optical semiconductor material of transparency, and a developing roll 5 for forming a magnetic brush, this method uses the image carrier 1 formed in positive chargeability, and a magnetic developer obtained by mixing a positive chargeability toner formed in 10<2>-10<8>OMEGA.cm volume specific resistance, and 5-20mum average particle diameter, and a negative chargeability magnetic particle formed in 10<3>-10<12>OMEGA.cm volume specific resistance, and 10-100mum average particle diameter.</p> |
