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US 9,541,859 B2Granted
Electrophotographic image forming apparatus, toner cartridge for the same, imaging cartridge for the same, and method of controlling toner level in developing chamber of the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSeong-ho Jeong, Sang-jin Park, Byeong-no Jeong, Jong-won Han
Life of this patent
Estimating the term…
Abstract
An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.
Claims10
A toner cartridge that is detachable from an imaging cartridge disposed in a main body of an image forming apparatus, the toner cartridge comprising:
- a toner container to contain toner to be supplied to a development chamber disposed in the imaging cartridge;
- and
- an optical sensor comprising a light emitter to irradiate light into the development chamber and a light receiver to receive light that is emitted out of the development chamber after passing through the development chamber, and to detect a toner level in the development chamber.
Dependencies are inferred from the claim text.