Image formation apparatus, toner amount measurement apparatus, and toner amount measurement method

Light is applied by a laser diode 121 onto a photosensitive roll 110 formed with a developed toner image 161, the surface potential of the photosensitive roll 110 to which the light is applied is measured with a surface potential sensor 122, and the toner amount of the developed toner image 161 on t...

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Bibliographische Detailangaben
Hauptverfasser: HISANO TOHRU, KITAZAWA KAZUKI, OHASHI SHINICHI, YOSHIDA KAORU, WATANABE YOICHI
Format: Patent
Sprache:eng
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Zusammenfassung:Light is applied by a laser diode 121 onto a photosensitive roll 110 formed with a developed toner image 161, the surface potential of the photosensitive roll 110 to which the light is applied is measured with a surface potential sensor 122, and the toner amount of the developed toner image 161 on the photosensitive roll 110 is derived based on the measured surface potential.