Optical Character Recognition for Ink Jet Printers
Original Publication Date: 1980-Oct-01
Included in the Prior Art Database: 2005-Feb-13
Printers utilizing their storage capability for storing printed material, for example, in bar code form, so that it may later be recalled by the use of optical character recognition means require that the dye employed for the printer ink absorb light in the 700-1000 nm range. A dye that has been found capable of strong absorption in the desired range by either addition to the existing dye in the ink formulation or by itself appears in chemical abstract services, CAS #3599-32-4. This dye, produced by Eastman Kodak Company, has a particular, described use as a laser dye, but has also been found to be useful in formulations for ink jet printers to give the ink the necessary property for optical character recognition.