Device and method for measuring concentration of liquid toner
AssigneeMitsubishi Heavy Industries, Ltd.
InventorShinichiro Senoo
Life of this patent
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Abstract
In a device and a method for measuring the concentration of liquid toner, for accurate detection of the concentration of liquid toner, provided are a rotary roller; a toner adhesion portion along the outer circumference of the roller, the toner adhesion portion being configured to hold liquid toner T; a sensor for detecting the concentration of the liquid toner based on the amount of light that is reflected from the liquid toner T adhering at a predetermined thickness to the toner adhesion portion; and a scraping blade for scraping off the liquid toner from the toner adhesion portion after the detection by the sensor, and apply voltage of the same polarity as that of the liquid toner to the toner adhesion portion when the liquid toner is scraped off by the scraping blade.
Claims10
A device for measuring the concentration of liquid toner, comprising:
- a rotary roller;
- a toner adhesion portion along the outer circumference of the roller, the toner adhesion portion being configured to hold the liquid toner;
- a sensor for detecting the concentration of the liquid toner based on the amount of light that is reflected from the liquid toner adhering at a predetermined thickness to the toner adhesion portion;
- a scraping blade for scraping off the liquid toner adhering to the toner adhesion portion after the detection of the liquid toner by the sensor;
- and
- applying means for applying voltage of the same polarity as that of the liquid toner to the toner adhesion portion when the liquid toner is scraped off by the scraping blade.
A method for measuring the concentration of liquid toner, comprising:
- holding the liquid toner on a toner adhesion portion along the outer circumference of a roller into a predetermined thickness while rotating the roller;
- detecting the concentration of the liquid toner by a sensor based on the amount of light reflected from the liquid toner adhering to the toner adhesion portion;
- scraping off the adhering liquid toner by a scraping blade after the detection;
- and
- applying voltage of the same polarity as that of the liquid toner to the toner adhesion portion when the liquid toner is scraped off by the scraping blade while rotating the roller.
Dependencies are inferred from the claim text.