作者: James P. Kitchen , Eric M. Gross
DOI:
关键词: Reflectivity 、 Voltage 、 Materials science 、 Light-emitting diode 、 Intensity (heat transfer) 、 Optics 、 Optoelectronics
摘要: A system is provided that determines the amount of toner on a photo receptor in xerographic operation. charged one or more locations to create an image. developer places patch predetermined onto charge receptor. light emitting diode projects receptor, wherein intensity varies based voltage LED. An optical reflective sensor measures reflectance placed related known way direct relationship between LED and allow for accurate extrapolation at intensities greater than point saturation.