QUARTZ CRYSTAL BASED SOLID AREA DENSITY CONTROL
Original Publication Date: 1990-Apr-30
Included in the Prior Art Database: 2004-Apr-05
Xerox Disclosure Journal
The subject disclosure relates to xerographic image density measurement by accumulating toner on a quartz crystal surface representative of the photoreceptor and determining the amount of toner by the shift in frequency of the quartz crystal oscillator.