Abstract: A liquid development and transfer apparatus includes a plurality of applicators for supplying developing solution uniformly to the surface of an electrostatic latent image. A voltage opposite in polarity to the electrostatic latent image is applied to one applicator and a voltage the same polarity as the latent image is applied to the other applicator. At least one of the applicators is a dish type development electrode. After development of the electrostatic latent image for a given color on the electrostatic latent image carrier, solvent contained in the developed image layer is removed or heated, and color superimposing development is performed consecutively in similar fashion for other colors. By collectively transferring the resulting developed image to a recording paper or an intermediate transfer medium, color superimposing development can be accomplished with high accuracy without mixing of the colors of the developing solutions.

Abstract: A liquid development and transfer apparatus includes an application roller for supplying developing solution to an electrostatic latent image carrier surface, and an applicator for providing developing solution uniformly on the surface of the application roller. A DC bias voltage is applied to the application roller to influence development of an electrostatic latent image of the carrier, and an AC bias voltage is applied between the application roller and the applicator to prevent developer from collecting thereon as might be caused by residual potentials. After development of the electrostatic latent image for a given color on the electrostatic latent image carrier, solvent contained in the developed image layer is removed or heated, and color superimposing development is performed consecutively in similar fashion for other colors.

Abstract: A printing plate including a printing plate member, an easily deformable elastic layer laminated on the printing plate member, a surface layer having a higher elasticity than that of the elastic layer, laminated on the elastic layer, and a printing surface layer formed on the surface layer. The printing surface layer has an image area having an affinity with an ink and a non-image area having an ink repellancy.