Patent ID: 7715733
Filing Date: 2010-05-11
Classification: B41J,C10M,C10N,G03G

Abstract:
1. A method for authenticating an imaging material, comprising: tagging an imaging material with at least one fluorescent tag, wherein the imaging material is a fuser lubricant and the fluorescent tag is present in the fuser lubricant in an amount of from about 0.01 to about 100 ppm; generating an energy source for stimulating an emission of fluorescent light from the fluorescent tagged fuser lubricant; stimulating the emission of fluorescent light from the fluorescent tagged fuser lubricant; subjecting the stimulated emission of fluorescent light from the fluorescent tagged fuser lubricant to a filter to remove background interference before measuring the emission of fluorescent light from the fluorescent tagged fuser lubricant at the predetermined wavelength, wherein the filter is selected from the group consisting of an acousto-optic tunable filter, a fiber tunable filter, a thin-film interference filter, an optical band-pass filter, and a digital filter; measuring the emission of fluorescent light from the fluorescent tagged fuser lubricant at a predetermined wavelength; and identifying a test fuser lubricant as authentic when the measured emission of fluorescent light from the test fuser lubricant meets a predetermined emission of fluorescent light from the fluorescent tagged fuser lubricant at the predetermined wavelength.