| 摘要 |
A penta-level xerographic unit includes an exposure station (B) which produces five exposure levels on a photoreceptor. The five exposure levels select between a subtractive and an adjacent additive primary color in both the CAD (charge area development) and DAD (discharge area development) operational regimes of a xerographic process. Exposure levels intermediate between the CAD and the DAD result in white. The selection of two possible colors (32,34) in CAD, or two possible colors (36,38) in DAD, or the selection of no toner yields a possibility of five colors. This penta-level xerographic unit can be used for a K + 3 reduced color gamut printer, typically cyan, yellow and red plus black. <IMAGE> |
