Abstract: An inkless printing device that comprises a plurality of lasers, a rotating polygonal mirror, and an energy recycling unit. The mirror rotates and reflects a laser beam in a manner that allows the beams to reach any point on the paper. The laser turns ON and OFF while the mirrors are rotating to form a printout. Printing on a sheet of paper is achieved by burning to a certain pre-determined depth of the paper, by using the thermal properties of a laser. The energy recycling unit converts the heat energy generated during the printing process to electrical energy and charges a battery cell. Upon the battery cells being charged to a pre-determined power threshold, the power supply to the printer is changed from the AC supply to the battery supply.

Abstract: An inkless printing device that comprises a plurality of lasers, a rotating polygonal mirror, and an energy recycling unit. The mirror rotates and reflects a laser beam in a manner that allows the beams to reach any point on the paper. The laser turns ON and OFF while the mirrors are rotating to form a printout. Printing on a sheet of paper is achieved by burning to a certain pre-determined depth of the paper, by using the thermal properties of a laser. The energy recycling unit converts the heat energy generated during the printing process to electrical energy and charges a battery cell. Upon the battery cells being charged to a pre-determined power threshold, the power supply to the printer is changed from the AC supply to the battery supply.