Patent ID: 8045156
Filing Date: 2011-10-25
Classification: G01N,G02B

Abstract:
1. A system for providing correlates of a xerographic imaging member layer relative thickness, comprising: a reflected light microscope, comprising a light source and a dark field objective for applying a light beam to a pigmented xerographic imaging layer, wherein a reflected beam is produced; a beam splitter and fiber optic cable for transporting the reflected beam to a spectrometer; a spectrometer for obtaining a spectrum of the pigmented xerographic imaging layer positioned on a top portion of a xerographic imaging member and defining the spectrum associated with the pigmented xerographic imaging layer, wherein the spectrum is normalized such that a base spectrum is subtracted from a composite spectrum of the xerographic imaging member to define the spectral response associated with the topmost pigmented xerographic imaging layer; and circuitry for correlating imaging member characteristics with the measurements obtained from the spectrometer and microscope, wherein such correlating information is used to adjust xerographic imaging layer production or monitor xerographic imaging layer wear.