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US 9,285,705 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
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Abstract
An electrophotographic image forming apparatus includes 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.
Claims23
An image forming apparatus comprising:
- a main body;
- an imaging cartridge comprising a photoreceptor, a development chamber, and a development roller to supply toner from the development chamber to the photoreceptor to develop an electrostatic latent image on the photoreceptor, wherein the image cartridge is detachable from the main body;
- a toner cartridge, detachable from the imaging cartridge, to contain toner;
- a first optical sensor mounted in the imaging cartridge to detect a toner level in the development chamber;
- and
- a second optical sensor mounted in the toner cartridge to detect the toner level in the development chamber.
3 more elements
An image forming apparatus comprising:
- a main body;
- an imaging cartridge;
- a toner cartridge which is detachable from the imaging cartridge;
- a first toner level detector mounted in one of the imaging cartridge and the toner cartridge to detect a toner level in a development chamber of the imaging cartridge;
- and
- at least a portion of a second toner level detector mounted in the other one of the imaging cartridge and the toner cartridge to detect another toner level in the development chamber.
3 more elements
Dependencies are inferred from the claim text.