A volume element (voxel) printing system for printing a three-dimensional object is provided. The system includes a first printhead group, at least one second printhead group, a conveyor and a control system. The first printhead group includes a plurality of first printheads configured to print a first...http://www.google.de/patents/US7597420?utm_source=gb-gplus-sharePatent US7597420 - Volume element (voxel) printing system for printing a three-dimensional object
