LASER INK JET
Original Publication Date: 1990-Feb-28
Included in the Prior Art Database: 2004-Apr-05
Xerox Disclosure Journal
Referring to Figure 1, a schematic end view of a thermal ink jet printing device 10 is shown. A laser beam 12 from laser 14 is passed through a beam splitter 16 and split into printing beam 18 and a drying beam 20. The printing beam is selectively reflected off of a polygon 22 and strikes the target area 24 of an ink channel 26 of printhead 34, thus selectively creating a heat source in the channel which forms the momentary bubble and ejects an ink droplet 28 towards the recording medium 30 on a rotatable drum platen 32. The ink is replenished via ink inlet 36 from an ink supply (not shown). The drying beam 20 is used to dry the ink printed on the recording medium.