| 摘要 |
<p>An electrophotographic method and apparatus for developing and printing colour images by the electrostatic projection of dry powder colour toners (104) onto a photoconductive member (10). A plurality of colour developing devices (28,30,32,34) are spaced from the photoconductive member (10) and are AC and DC biased (46,48,52,118) to sequentially project each of the cyan, yellow, magenta, and black color planes onto the photoconductive member (10). The photoconductive member (10) is directly driven against an intermediate transfer member (60) which sequentially receives and stores each of the colour planes to thereby form a composite colour image, and each colour plane is transferred from the photoconductive member (10) before the next colour plane is received thereon. The composite colour image is then directly transferred to the print medium (72), whereby the use of the intermediate transfer member (60) eliminates the problems of counter potentials at the surface of the photoconductive member (10) and enables dot-on-dot (DOD) formatting to be utilized for achieving the maximum resolution and print quality of the printed image. <IMAGE></p> |
