Specular diffuse balance correction method

Details Specular diffuse balance correction method Specular diffuse balance correction method

2011-08-30

2011-08-30

Gray, David (Department: 2852)

Electrophotography

Control of electrophotography process

Of plural processes

C399S072000

Reexamination Certificate

active

08010001

ABSTRACT:
According to the invention, a method is provided for calculating a Fractional Area Coverage (FAC) for determining the density of toner to evaluate the effectiveness of a xerographic printing process. The amount of diffuse light being reflected at the specular angle is determined during densitometer calibration and subsequent specular sensor readings are corrected by subtracting a fraction of the diffuse sensor signal from the specular sensor signal. Also provided is a computer readable media having stored computer executable instructions, wherein the computer executable instructions, when executed by a computer, directs a computer to perform a method for calculating a FAC for determining the density of toner to evaluate the effectiveness of a xerographic printing process.

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patent: 6462821 (2002-10-01), Borton et al.
patent: 2004/0253012 (2004-12-01), Ishibashi
patent: 2006/0024077 (2006-02-01), Scheuer et al.
patent: 2006/0153580 (2006-07-01), Mo et al.

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