KR20070001644A - A scanning apparatus - Google Patents

Abstract

A scanning device is provided to improve printing quality of a scanned manuscript and reliability of a product by outputting no dark image caused from scanning of a non-image area and exposing no light of a scanning unit to a user even if the scanning unit is operated in a state that a cover is not completely closed. A scanner body(110) is equipped with a manuscript table(111) for receiving the manuscript. The scanning unit(120) scans the manuscript by being movably installed to the inside of the scanner body. The first and second shielding film covers the non-image area of the manuscript table. The first storing reel(141) and the second storing reel respectively/elastically wind up and store the first and second shielding film. A holding unit keeps the state that the first and second shielding film covers the non-image area. The first shielding film(131) covers a vertical direction of the non-image area and the second shielding film covers a horizontal direction of the non-image area. The first and second shielding films are installed and have different heights each other to prevent interference between the first and second shielding film.

Description

Scanning apparatus {A scanning apparatus}

1 is a plan view schematically showing a typical scanning device;

2 is a plan view schematically showing a scanning device according to an embodiment of the present invention;

3 is a plan view schematically illustrating a state in which the first and second shielding films illustrated in FIG. 2 cover a non-image area;

4A is a cross-sectional view taken along the line IV-IV of FIG. 3;

4B is a cross-sectional view schematically illustrating a closed state of FIG. 4A;

5 is a cross-sectional view taken along the line VV of FIG. 3, and

6 is a cross-sectional view taken along the line VI-VI of FIG. 3.

<Description of the reference numerals for the main parts of the drawings>

110: scanner body 111: document glass

112: cover 120: scanning unit

131: first shielding film 132: second shielding film

141: first storage reel 142: second storage reel

150: holding unit 151: first handle

152: second handle 153: fixing groove

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunction apparatus having functions such as scan, printer and fax, and more particularly, to a scanning apparatus for scanning an image of an original.

In general, the multifunction apparatus scans and stores an image of an original, and also prints or transmits the stored image. Such a multifunction apparatus includes a scanning device for scanning an image of the document, an example of which is schematically illustrated in FIG. 1, which is briefly described as follows.

As shown, the multifunction apparatus includes a scanner body 10 provided with a document table 11 on which a document P is placed, and a scanning unit 20 for scanning the document P.

The multifunction apparatus also includes a cover (not shown) covering the document glass 11 on which the document P is placed upon scanning. The cover is rotatably installed on the scanner body 10.

The scanning unit 20 is movably installed inside the scanner body 10 to scan an image of the document P placed on the document table 11.

The scanning unit 20 is configured to scan an area according to a set standard of the document P placed on the document table 11, for example, A4 or A3. Specifically, as shown in FIG. 1, the scanning unit 20 moves by the area A1 when the document of A4 standard is set and scans the original, and moves by the area of A2 when the document of A3 standard is set. Scan the original.

On the other hand, when scanning an image of a non-standard document such as a book or a letter, unnecessary scanning of the non-image area is performed by the scanning unit 20 which is movable only for the set scan areas A1 and A2.

Therefore, when the non-standard document has a predetermined thickness, a problem arises in that the non-image area is outputted black because the cover is not completely closed. In addition, the light of the scan unit 20 is exposed to the outside through the non-image area due to the open cover, which is not good for the user.

The present invention has been made in view of the above, and an object thereof is to provide a scanning device having an improved structure to cover a non-image area of a document glass on which an original is not placed.

The scanning device according to the present invention for achieving the above object, the scanner body having a document glass on which the document is placed; A scanning unit installed to be movable in the scanner body to scan the document; First and second shielding films covering non-image areas of the document glass on which the originals are not placed; First and second storage reels to elastically wind and store the first and second shielding films, respectively; And a holding unit which maintains a non-image area cover state of the first and second shielding films.

According to a preferred embodiment of the present invention, the first shielding film covers the transverse direction of the original non-image area, and the second shielding film covers the longitudinal direction of the non-document area, and the first shielding film and the It is preferable that the two shielding films are different in height from the original glass so as not to interfere with each other.

In addition, the shielding membrane holding unit, the handle is provided at the front end of the first and second shielding film, respectively; And a plurality of fixing grooves respectively formed on the upper and lower sides and the left and right sides of the upper surface of the scanner body to fix the movement position of the handle on the document glass.

In addition, the first and the second storage reel is preferably disposed inside the scanner body.

Hereinafter, a scanning apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in Figure 2 and 3, the scanning device according to an embodiment of the present invention, the scanner body 110, the scanning unit 120, the first and second shielding film 131, 132, the first and The second storage reel 141, 142, and the holding unit 150 is included.

The scanner body 110 has a document table 111 on which a document P is placed. As shown in FIG. 4A, the scanner body 110 is provided with a cover 112 that rotates in the B direction to selectively open the document glass 111.

As shown in FIGS. 4A and 4B, the scan unit 120 is movably installed inside the scanner body 110 to scan an image of the document P placed on the document table 111.

2 and 3, the scanning unit 120 scans according to a set standard of the document P placed on the platen 111, for example, A4 or A3. The area is set. In detail, the scanning unit 120 scans the document by moving the area A1 when the A4 standard document is set, and scans the document by moving the area A2 when the A3 standard document is set.

The scan unit 120 includes an optical sensor such as a CIS (Contact Image Sensor) or a CCD (Charge Coupled Device) that detects the light reflected from the original P by irradiating light onto the original P. Since the technical configuration of the scan unit 120 can be understood from a known technology, a detailed description thereof will be omitted.

The first and second shielding films 131 and 132 cover the non-image area N of the document table 111 on which the document P is not placed. Specifically, as shown in FIGS. 3 and 4A, the first shielding film 131 moves in the C direction of the document glass 111 to cover the horizontal direction of the non-image area N. FIG. 3 and 5, the second shielding film 132 moves in the D direction to cover the longitudinal direction of the non-image area N of the document glass 111.

In the non-image area N, as shown in FIG. 3, when a non-standard document P, which is not an A4 or A3 standard document, is placed on the platen 111, the scanning unit 120 is set. It refers to an area generated by scanning an area other than the image area S on which the document P is placed by moving by the area A1 or A2.

In this embodiment, as shown in Figure 3, it is shown that the original (P) larger than the A4 standard and smaller than the A3 standard is placed on the platen 111. Thus, the scan unit 120 is moved by the A2 region.

In addition, the first and second shielding films 131 and 132 may have different heights with respect to the platen 111 so as not to interfere with each other. In this embodiment, the installation position of the first shielding film 131 is shown to be lower than the second shielding film 132. Thus, after the first shielding film 131 is moved in the C direction, it is shown that the second shielding film 132 is moved in the D direction. However, the installation height relationship of the first and second shielding films 131 and 132 is not necessarily limited to the case of the illustrated example.

As shown in FIGS. 4A to 5, the first and second storage reels 141 and 142 elastically wind and store the first and second shielding films 131 and 132, respectively. Thus, each of the first and second storage reels 141 and 142 is wound in a direction in which the first and second shielding films 131 and 132 are wound to the first and second storage reels 141 and 142, respectively. First and second elastic members 141a and 142b which provide elastic force to the intervening members are interposed therebetween.

In addition, the first and second storage reels 141 and 142 are disposed inside the scanner body 110. However, the present invention is not necessarily limited thereto, and the first and second storage reels 141 and 142 may be installed at an outer side of the scanner body 110.

The holding unit 150 maintains a non-image area (N) cover state of the first and second shielding films 131 and 132, and the first and second handles 151, 152 and the fixing groove 153. ).

The first and second handles 151 and 152 are provided at the front end of the first and second shielding films 131 and 132, respectively. Accordingly, the user grasps the first and second handles 151 and 152 and selectively moves the first and second shielding films 131 and 132 to thereby control the first and second shielding films 131 and 132. The location can be determined.

As shown in FIG. 6, the fixing groove 153 fixes the moving positions of the first and second handles 151 and 152 on the platen 111, thereby the scanner body 110. A plurality of upper and lower sides and left and right sides of the upper surface are formed.

On the other hand, in the present embodiment, although the fixing groove 153 is formed on the upper surface of the scanner body 110, it is shown to be exposed to the outside, but is not necessarily limited thereto. That is, although not shown, the guide groove is formed in the longitudinal direction on the upper portion of the scanner body, the fixing groove is formed in the inner upper or lower portion of the guide groove, it is natural that the modified embodiment such that it is not exposed to the outside is possible. Do.

An operation state of a scanning apparatus according to an embodiment of the present invention having the above configuration will be described with reference to the accompanying drawings.

2 and 4B, before the document P is placed on the document glass 111, only the first and second handles 151 and 152 are exposed to the outside of the scanner body 110 and It is placed at the boundary between the ancient 111 and the scanner body 110. In this case, the first and second shielding films 131 and 132 are wound around the first and second storage reels 141 and 142.

Thereafter, when the cover 112 is rotated in the B direction shown in FIG. 4A to open the document glass 111, the document P is placed on the document glass 111 as shown in FIG. . Here, the document P is an original having a predetermined thickness larger than the A4 standard and smaller than the A3 standard.

Before scanning the image of the document P, the user moves the first and second handles 151 and 152 in the C and D directions, respectively, as shown in FIGS. 3, 4A and 5. The first and second shielding films 131 and 132 may be brought into contact with the document P. In this case, as shown in FIG. 6, the first and second handles 151 and 152 are fixed to the fixing grooves 153, respectively, whereby the first and second shielding films 131 and 132 are moved. Is fixed.

As such, the first and second shielding layers 131 and 132 cover the non-imaging region N on the document glass 111 so that the light of the scan unit 120 is not exposed through the non-imaging region N. It is also possible to prevent the image from being output black.

According to the present invention as described above, since the first and second shielding films cover the non-image area of the document glass on which the original is placed, the scan unit is not exposed to the outside through the non-image area. Therefore, even if the scan unit is operated while the cover is not completely closed, the scan unit scans the non-image area so that a black image is output or the light of the scan unit is not exposed to the user. That is, the print quality of the scanned document can be improved, and the reliability of the product can be improved.

While the invention has been shown and described in connection with the preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (4)

A scanner body having a document glass on which a document is placed; A scanning unit installed to be movable in the scanner body to scan the document; First and second shielding films covering non-image areas of the document glass on which the originals are not placed; First and second storage reels to elastically wind and store the first and second shielding films, respectively; And And a holding unit which maintains the non-image area cover state of the first and second shielding films. The method of claim 1, The first shielding film covers the transverse direction of the original image non-image area, and the second shielding film covers the longitudinal direction of the original image non-image area, and the first shielding film and the second shielding film do not interfere with each other. Scanning device, characterized in that the height is installed differently from ancient times. The method of claim 2, wherein the shielding film holding unit, Handles provided at the ends of the first and second shielding films, respectively; And And a plurality of fixing grooves respectively formed on the upper and lower sides and the left and right sides of the upper surface of the scanner main body to fix the movement position of the handle on the document glass. The method of claim 1, And the first and second storage reels are arranged inside the scanner body.

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