IMAGE FORMING APPARATUS AND CONTROL METHOD FOR IMAGE FORMING APPARATUS

摘要

An image forming apparatus includes an image bearer that bears a toner image, a sensor, an adhesion amount calculator, and a wavelength determiner. The sensor includes a light source that emit light onto the image bearer, and an image element that detects reflected light that is emitted from the light source and reflected from the image bearer. The adhesion amount calculator calculates a toner adhesion amount of the toner image on the image bearer based on the reflected light having at least one wavelength among a plurality of wavelengths detected by the sensor. The wavelength determiner determines, based on color information of the image bearer detected by the sensor, a wavelength to be used in calculation of the toner adhesion amount by the adhesion amount calculator.

主权项

1. An image forming apparatus, comprising:
an image bearer to bear a toner image; a sensor including:
a light source to emit light onto the image bearer; andan image element, sensitive to a plurality of wavelength regions each having a different visible light range, to detect reflected light that is emitted from the light source and reflected from the image bearer, an adhesion amount calculator to calculate a toner adhesion amount of the toner image on the image bearer based on the reflected light having at least one wavelength among a plurality of wavelengths detected by the sensor; and a wavelength determiner to determine, based on color information of the image bearer detected by the sensor, a wavelength to be used in calculation of the toner adhesion amount by the adhesion amount calculator.