| 摘要 |
<p>Polychromatic acoustic ink printers are disclosed, including several embodiments which utilize a single printhead (62) for ejecting droplets of ink on command from a transport (35) which carries the different-colored inks past the printhead (62) in timed synchronism with the printing of the corresponding color separations (B,Y,M,C). If desired, a diluent (D) also may be provided to permit the printing of an intensity mask. A variety of transports (35) is described, including single-ply solid or perforated films, as well as laminated multiple-ply films composed of a solid or perforated lower layer, a perforated or mesh upper layer, and, in some embodiments, one or more perforated intermediate layers. Furthermore, it is disclosed that a perforated transport (35) may be overcoated with a patterned metallization so that an electric field can be generated to assist in controlling the droplet ejection process. Some of the transports (35) are designed to carry the inks in a liquid state. However, others are suitable for carrying the inks in a solid state, so provision may be made for liquefying the inks, such as by heating them, as they approach the printhead or printheads (62).</p> |
