| 摘要 |
<p>A closed loop thermal transfer recording system and color transfer ribbon having a plurality of different color ink stripes thereon are provided for recording a color tonal image on a recording sheet. Precise control over the size of dots formed by ink transfer is achieved by monitoring the density of a thermally sensitive indicator layer on the back side of the ribbon which provides, for each different ink color, indicator marks that are proportional to recorded pixel density, and feeding this information back to a control system which compares monitored density with desired density and regulates heat input to the ribbon accordingly.</p> |
