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US 8,254,007 B2Granted
Scanner and image forming apparatus including the same
AssigneeSamsung Electroncis Co., Ltd.
InventorSe-Tae Kim
Life of this patent
Estimating the term…
Abstract
Disclosed are a scanner and an image forming apparatus employing the same. The scanner may produce bidirectional scanning of light by oscillating a deflecting mirror about a first axis substantially parallel to the mirror surface, and may compensate for skewing of the scan lines by rotating the mirror about a second axis that is substantially perpendicular to the first axis so as to allow the light to be scanned at an angle.
Claims24
A scanner, comprising:
- a mirror having a reflective surface;
- a rotational body spaced apart from and surrounding the mirror;
- a first bar connecting the mirror and the rotational body;
- and
- a driving unit configured to rotate the rotational body around an axis perpendicular to reflective surface of the mirror,
- wherein the mirror is configured to vibrate about the first bar in synchronization with the rotation of the rotation body and scanning is performed using the vibration of the mirror, and
- the rotation of the mirror reduces skew of a scanning line caused during scanning.
4 more elements
An image forming apparatus, comprising:
- a light source configured to produce a light beam;
- a scanner configured to receive the light beam from the light source and to deflect the received light beam across a scanning line;
- a photosensitive medium having a photosensitive surface upon which the light beam deflected by the scanner is incident to thereby form on the photosensitive surface an electrostatic latent image;
- a developing unit arranged adjacent the photosensitive member, the developing unit configured to apply developing agent to the photosensitive surface so as to develop the electrostatic latent image into a visible image;
- and a transfer unit configured to transfer the visible image onto a printing medium, wherein the scanner comprises:
- a mirror having a reflective surface;
- a rotational body spaced apart from and surrounding the mirror, the rotational body being configured to rotate about a rotational axis substantially perpendicular to the reflective surface of the mirror;
- a first bar connecting the mirror to the rotational body such that the mirror rotates together with the rotational body about the rotational axis;
- and
- a driving unit configured to drive the rotational body to rotate about the rotational axis,
- wherein the mirror is configured to vibrate about the first bar in synchronization with the rotation of the rotation body and scanning is performed using the vibration of the mirror, and
- the rotation of the mirror reduces skew of a scanning line caused during scanning.
9 more elements
A light scanning apparatus, comprising:
- a light source configured to generate light;
- and
- a mirror having a reflective surface upon which the light generated by the light source is incident, the mirror being configured to oscillate about a first axis substantially parallel to the reflective surface, the mirror being further configured to be rotatable about a second axis substantially perpendicular to the first axis and the reflective surface,
- wherein the mirror is configured to vibrate about the first bar in synchronization with the rotation of the rotation body and scanning is performed using the vibration of the mirror, and
- the rotation of the mirror reduces skew of a scanning line caused during scanning.
2 more elements
Dependencies are inferred from the claim text.