Hewlett-packard Development Company, L.p.

Seung Beom Yang

Jung Hoon Lee

Ji Young Lee

Jang Won Seo

Takuya Ito

Soo Hyun Kim

Koo Won Park

Sung Hyun Yoon

Seung Rae Kim

Jae Hoon Lee

Whan Woo Lee

Sung Dae Kim

Ho Jun Jang

Dae Lim Shin

An image reading apparatus includes an image sensor, a document feeder, and a processor. The document feeder includes a first driving device, a second driving device, a third driving device, a first sensor, and a second sensor. The first driving device includes a pick-up member to move documents from a tray to a document conveying path using a driving force through a first clutch. The second driving device is to move the tray with the documents to a side of the pick-up member using a driving force through a second clutch. The third driving device to move the documents along the document conveying path onto the image sensor using the driving force of the motor. The first and second sensors detect the documents on the document conveying path. The processor controls an operation of the first clutch based on the signals of the first and second sensors.

Document feeder using single motor and image reading apparatus including the same

An image reading apparatus includes an image sensor, a document feeder, and a processor. The document feeder includes a first driving device, a second driving device, a third driving device, a first sensor, and a second sensor. The first driving device includes a pick-up member to move documents from a tray to a document conveying path using a driving force through a first clutch. The second driving device is to move the tray with the documents to a side of the pick-up member using a driving force through a second clutch. The third driving device to move the documents along the document conveying path onto the image sensor using the driving force of the motor The first and second sensors detect the documents on the document conveying path. The processor controls an operation of the first clutch based on the signals of the first and second sensors.

A cartridge which is detachably mountable in a printer main body includes a rotatable member and a coupler to rotate the rotatable member by receiving rotation power from an external source. The coupler includes a coupler body connected to the rotatable member and a coupler arm provided at the coupler body so as to be movable to a first position and a second position. The first position is farther from a center of rotation of the coupler than the second position, and the coupler arm is to push and rotate the coupler body when the rotation power is received by the coupler. The coupler also includes an elastic member to apply an elastic force to the coupler arm in a direction in which the coupler arm returns to the first position from the second position.

Cartridge having rotatable coupler

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Suwon-si, South Korea

Seung Beom Yang