Patent ID: 6819886
Filing Date: 2004-11-16
Classification: G03G

Abstract:
An on-line gloss/density meter for an electrostatographic reproduction apparatus in which pigmented marking particle images are fixed to receiver members respectively by application of heat and/or pressure as such receiver members travel along a transport path through a fuser assembly, said on-line gloss/density meter comprising:at least one light emitter for emitting a collimated light beam, said light emitter mounted in operative association with said transport path; at least one light collector, mounted in operative association with said at least one light emitter and said transport path to detect light from said at least one light emitter, reflected from a receiver member transported along said transport path, and produce a signal corresponding to such reflected light; a guide element associated with said transport path for directing a receiver member into a predetermined specified location relative to the beam of light from said at least one light emitter to reflect light toward said at least one light collector; and a logic and control unit for controlling operative parameters of said electrostatographic reproduction apparatus, said logic and control unit responsive to signals from said at least one light collector, whereby upon said at least one light collector providing appropriate signals, said logic and control unit precisely controls operating parameters for said electrostatographic reproduction apparatus to control, on-line, gloss and/or density.