Patent ID: 8881651

Claim:
A printing system, comprising: first means for depositing a principal substance on a surface; second means for depositing one of a liquid and gel gating agent in a first region, which defines a non-image area, of a print medium; third means for transferring a portion of the principal substance from the surface to the print medium after the one of a liquid and gel gating agent is applied to the print medium, and a controller coupled to the second means and operable to cause the second means to deposit the one of a liquid and gel gating agent directly onto the print medium in the first region; wherein the principal substance is deposited in a second region of the print medium that is receptive to both principal substance and the one of a liquid and gel gating agent, wherein the one of a liquid and gel gating agent substantially blocks transfer of the principal substance to the first region, and the print medium with the principal substance transferred thereto is an end product of the printing system.