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AssigneeXerox Corporation
InventorsEric M. Gross, Scott M. Silence, Ralph A. Shoemaker, Douglas A. Kreckel, Jean A. Maksymiak, Raymond L. Mongeon, Joseph A. Mastrandrea, R. Enrique Viturro
Estimating the term…
A toner maintenance system for an electrophotographic developer unit, including a sump for storing a quantity of developer material comprised of toner material; a first member for transporting developer material from the sump, a viewing window, in communication with toner material, in the sump; an optical sensor, for measuring reflected light off the viewing window and toner material, and generating a signal indicative thereof. A toner concentration controller is adapted to receive a signal from the optical sensor and to generate an “Add Toner” signal to replenish toner material in the sump.
A toner maintenance system for an electrophotographic developer unit, comprising:
An electrophotographic printing machine having a toner maintenance device in which a toner image is developed on a photoreceptive member, having a toner maintenance device, comprising:
An apparatus for measuring toner concentration of a sample composed of toner and carrier, the apparatus comprising:
Dependencies are inferred from the claim text.