TONER ADHESION AMOUNT MEASURING DEVICE AND TONER ADHESION AMOUNT SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a toner adhesion amount measuring device capable of detecting that toner is unevenly adhered to a transfer body.;SOLUTION: The toner adhesion amount measuring device includes: a transfer body 2; a first light emitting unit 11 for radiating first irradiation light; a second light emitting unit 12 for radiating second irradiation light having an angle different from the first irradiation light; a light emission control unit; polarizers 17, 18; a first light receiving unit 13 for receiving a P wave component of reflected light and outputting a first light receiving signal; a second light receiving unit 14 for receiving an S wave component of the reflected light and outputting a second light receiving signal; and a measuring unit 3. The light emission control unit sequentially irradiates a predetermined position of the transfer body 2 with the first irradiation light and the second irradiation light. A measurement unit 3 measures an amount of toner adhesion based on: the first and second light receiving signals when the predetermined position is irradiated with the first irradiation light and the first and second light receiving signals when the predetermined position is irradiated with the second irradiation light.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT