Abstract: The present invention relates to a complex composition for preventing or treating hearing loss, including sarpogrelate and a Vaccinium myrtillus extract as active ingredients, wherein the complex composition has been confirmed to effectively inhibit hair cell death by reactive oxygen species generated by hydrogen peroxide, in a small dose, and exhibit an excellent protective effect on zebrafish auditory hair cells, and therefore, the complex composition can be effectively used as a drug or health food for preventing or treating hearing loss.

Abstract: A paper feeding apparatus includes a pickup roller, a knock-up plate to accommodate recording media thereon and capable of moving to a pickup position and a release position, a forward roller to transfer a recording medium picked up by the pickup roller, a retard roller capable of moving to a contact position and to a separation position, a first control unit to move the knock-up plate to the pickup position and the release position, and a second control unit to move the knock-up plate to the contact position and the separation position, wherein the first control unit and the second control unit are driven by a single driving motor.

Abstract: A paper feeding apparatus includes a pickup roller, a knock-up plate to accommodate recording media thereon and capable of moving to a pickup position and a release position, a forward roller to transfer a recording medium picked up by the pickup roller, a retard roller capable of moving to a contact position and to a separation position, a first control unit to move the knock-up plate to the pickup position and the release position, and a second control unit to move the knock-up plate to the contact position and the separation position, wherein the first control unit and the second control unit are driven by a single driving motor.