Multi-functional device having scanner module and image scanning apparatus employing the scanner module

A multi-functional device comprising:

• a document mount;
• and
• a scanner module installed below the document mount so as to be movable as a single moveable body in a first scanning direction with respect to an object on the document mount, the scanner module including:
• a light source to emit light,
• a light source holder to hold the light source,
• a light guiding unit, which extends lengthwise in a second scanning direction perpendicular to the first scanning direction, to face the document mount and to change a traveling path of the light emitted from the light source to illuminate the document mount,
• a guide holder comprising an installation part to which the light guiding unit is installed and a mounting part to which the light source holder is mounted, the guide holder disposed to expose at least one side of the light guiding unit to the light emitted from the light source,
• a sensor unit to read an image information of the object on the document mount by light reflected from the object,
• a first reflecting mirror to guide the light reflected from the object,
• at least one second reflecting mirror to guide the light reflected from the first reflecting mirror to the sensor unit,
• an imaging lens, which is disposed between the reflecting mirrors and the sensor unit, to focus the light reflected by the reflecting mirrors onto the sensor unit,
• an incident surface disposed at a longitudinal end of the light guiding unit to receive the light from the light source, the light source being disposed at the incident surface,
• a guide surface to reflect and diffuse the light received on the incident surface, the guide surface being surrounded by the guide holder, and
• an exit surface facing the document mount to allow the light reflected and diffused by the guide surface to exit toward the object on the document mount,
• wherein the one of the light source holder and the guide holder comprises a hook member, and the other of the light source holder and the guide holder comprises a projection, such that the hook member is coupled with the projection.

A scanner module movable in a first scanning direction comprising:

• a light guiding unit, which extends lengthwise in a second scanning direction perpendicular to the first scanning direction, to face the document mount and to change a traveling path of the light emitted from the light source onto the object,
• a guide holder comprising an installation part to which the light guiding unit is installed and a mounting part to which the light source holder is mounted, the guide holder disposed to expose at least one side of the light guiding unit to the light emitted from the light source;
• a sensor unit to read an image information of the object on the document mount by light reflected from the object,
• a first reflecting mirror to guide the light reflected from the object,
• at least one second reflecting mirror to guide the light reflected from the first reflecting mirror to the sensor unit,
• an imaging lens, which is disposed between the reflecting mirrors and the sensor unit, to focus the light reflected by the reflecting mirrors onto the sensor unit;
• an incident surface disposed at a longitudinal end of the light guiding unit to receive the light from the light source, the light source being disposed at the incident surface and
• an exit surface facing the object to allow the light reflected and diffused by the guide surface to exit toward the object,
• wherein the guide holder includes at least one spacer protruded from a surface of the installation part to support the light guiding unit.

A scanner module movable in a first scanning direction comprising:

• a light source to emit light,
• a light source holder to hold the light source,
• a light guiding unit, which extends lengthwise in a second scanning direction perpendicular to the first scanning direction, to face the document mount and to change a traveling path of the light emitted from the light source to illuminate the document mount,
• a guide holder comprising an installation part to which the light guiding unit is installed and a mounting part to which the light source holder is mounted, the guide holder disposed to expose at least one side of the light guiding unit to the light emitted from the light source,
• a sensor unit to read an image information of the object on the document mount by light reflected from the object,
• a first reflecting mirror to guide the light reflected from the object,
• at least one second reflecting mirror to guide the light reflected from the first reflecting mirror to the sensor unit,
• an imaging lens, which is disposed between the reflecting mirrors and the sensor unit, to focus the light reflected by the reflecting mirrors onto the sensor unit,
• an incident surface disposed at a longitudinal end of the light guiding unit to receive the light from the light source, the light source being disposed at the incident surface,
• a guide surface to reflect and diffuse the light received on the incident surface, the guide surface being surrounded by the guide holder, and
• an exit surface facing the document mount to allow the light reflected and diffused by the guide surface to exit toward the object on the document mount,
• wherein one of the light source holder and the guide holder comprises a hook member, and the other of the light source holder and the guide holder comprises a projection, such that the hook member is coupled with the projection.