摘要 |
A printing apparatus for direct printing comprises an image bearing printing surface (10) that comprises a plurality of cells (12) for storing ink; a means for loading ink into the cells; a means for imaging direction on a substrate (55) by affecting ink properties in a first group of cells to form ink affinity to the substrate; a means for unloading ink by affecting ink properties in a second group of cells to nullify ink affinity to the substrate; and a means for collecting the unloaded ink from the second group of cells.
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