Toner concentration method for determining concentration of toner in a printing machine uses chromatometry for a toner and/or a toner carrier to determine concentration of toner with a sensor

摘要

A sensor (2) uses chromatometry for a toner (12) and/or a toner carrier (11) to determine concentration of toner. The sensor uses chromatometry of toner particles (10). Concentration of toner is controlled by relying on the concentration of toner detected by the sensor. A source of light emits light in a UV spectral range. An independent claim is also included for a device for determining concentration of toner in a printing machine.