Samsung Electronics Co., Ltd.

Myung-sik Kwon

Jung-gug Pae

Sang-hoon Mun

An image forming apparatus may includes an image carrying body, a intermediate transferring unit which includes an intermediate transferring belt to which a visible image on the image carrying body is transferred, a driving roller to drive the intermediate transferring belt, and a first roller support unit to support a rotation shaft of the driving roller. The image-forming apparatus also includes a medium transferring unit to transfer a visible image on the intermediate transferring belt to a printing medium and includes a transferring roller to move between a pressing position pressing the driving roller to interpose the intermediate transferring belt therebetween and a separated position separated from the pressing position, and a second roller support unit to support a rotation shaft of the transferring roller. The pressing position of the transferring roller can be regulated by a contact of the first roller support unit and the second roller support unit.

Electrophotographic image forming apparatus with improved image transfer

An optical pickup actuator having a flux shielding magnet, an optical pickup employing the optical pickup actuator, and an optical disc drive apparatus employing the optical pickup. The optical pickup actuator includes: a blade holding the objective lens; coils installed to the blade; and a base having a plurality of driving magnets interacting with a current flowing through the coils and generating a force that drives the blade in a predetermined direction, a shielding magnet arranged opposite to, and having a same polarity facing at least one of the driving magnets, the shielding magnet blocking leakage of magnetic flux from the driving magnets, and a holder having a surface to which the shielding magnet is attached and to which the blade is movably attached.

Optical pickup actuator having flux shielding magnet, optical pickup employing the optical pickup actuator and optical disc drive apparatus employing the optical pickup

An optical pickup actuator which can compensate for a curvature of a disc, an optical pickup employing the optical pickup actuator, and an optical recording/reproducing apparatus employing the optical pickup. The optical pickup actuator includes a base having a holder, a bobbin mounting an objective lens, a plurality of elastic supports having one end coupled to the holder and another end coupled to the bobbin such that the bobbin is movably supported, and a magnetic driving portion which drives the bobbin in a focusing direction and for a tracking direction. The plurality of elastic supports includes inner elastic supports that are positioned on a side of the optical pickup actuator closest to a center of the disc and outer elastic supports that are positioned on an opposite side of the optical pickup actuator closest to an outer perimeter of the disc, and the inner elastic supports and outer elastic supports have different lengths.

Optical pickup actuator, optical pickup employing the optical pickup actuator, and optical recording and/or reproducing apparatus employing the optical pickup

Growing community of inventors

Suwon-si, South Korea

Myung-sik Kwon