Image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10698353
APP PUB NO 20180024486A1
SERIAL NO

15647501

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An image forming apparatus includes an image bearing member, a developing unit to develop an electrostatic latent image formed on the image bearing member with toner, and a detachable toner container in which toner for supplying to the developing unit is contained. A measuring unit measures information relating to an amount of toner in the developing unit, and a determination unit determines an amount of toner in the developing unit based on the measured information. In a case where the determination unit determines that the toner container is empty, a supply operation for supplying toner from the toner container to the developing unit is performed and the measuring unit measures the information relating to an amount of toner in the toner container after the supply operation is performed, and in a case where the information relating to an amount of toner in the toner container measured after the supply operation is performed is within a measurement error range, the determination unit determines that the toner container is empty.

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First Claim

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayato, Takuya Kawasaki, JP 2 1
Kobayashi, Nobuyuki Kawasaki, JP 301 2725
Shimizu, Kazumichi Nagareyama, JP 33 72

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