| 摘要 |
PURPOSE:To prevent magnetic toner from being dropped and to obtain excellent picture quality by heating the magnetic toner simultaneously with development or immediately after development. CONSTITUTION:When printing information is impressed to a multistylus 1a, the voltage of the stylus 1a is set up to about +300-+400V or -300--400V and sucks developer 4 carried on a developing roll 5 to which -300--500V or +300-+500V is previously impressed and charged with reverse polarity based on the potential difference, so that developer is stuck to the surface of recording paper 2. On the other hand, the recording paper 2 is preheated by a preheater 6 and a heating part 1c before the passage of the recording paper 2 under a stylus head 1, and when the recording paper is heated by a heating part 1c after sticking developer to the recording paper between the multistylus 1a and a developing roll 5, the temperature of the recording paper 2 reaches 350-400 deg.C and prescribed fixing is executed. |
