JPH05292241A - Flat color scanner for printing - Google Patents

Abstract

PURPOSE:To prevent the wrong of a cassette by providing a cut to the external shape of the cassette in parallel to the cassette inserting direction or a groove biased from the center line of the cassette and then forming a projection at a cassette slot in accordant with the cut or the groove. CONSTITUTION:An original 2 is held between both frame bodies 1-A and 1-B of a cassette 100-a, and the screen part of the original 2 is exposed through a window 5. A groove 3-a is formed on the lower surface of the body 1-B at the left side of the center line set in the inserting direction of the cassette 100-a and in parallel to this inserting direction. Then a projection 4-a provided at a cassette slot 200-a can be slided into the groove 3-a. In such a constitution, the misloading like the adverse insertion, etc., of the cassette 100-a can be prevented and the correct position of the original 2 is kept for a scanner. Then the original 2 is correctly read.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a cassette and a cassette receiving portion for holding and supplying an original document to a flat type color scanner for printing.

[0002]

2. Description of the Related Art A flat-bed color scanner for printing subscans an original cassette in which originals are set in a cassette that holds the originals with good flatness by a subscanning mechanism that moves at a constant speed in the subscanning direction on a reading stage. Meanwhile, the original is illuminated by a light source, and a transmitted or reflected light image of the original is imaged on the reading means by an optical system including a mirror, a lens, etc., and the reading means photoelectrically converts and color-separates Y, M, A color separation version of Y, M, C is obtained by obtaining the image signal of each C and outputting each of Y, M, C by the output means.

The original used here is generally a small photographic original, and when it is read and output, it is enlarged to a large screen, so that the reading error of the original is enlarged. Also, depending on the performance of the optical system for reading, if the flatness of the document is poor or if the position of the document on the optical axis is different, the output becomes defective. Therefore, conventionally, as a method of easily obtaining the linearity (flatness) of the original on the main scanning line, a method of winding the original on a cylindrical drum and performing main scanning in the contact line direction of the tangential plane of the cylindrical drum has been implemented. .. However, winding a document around a cylindrical drum complicates the structure of the machine, is troublesome to handle, and may cause scratches and the like on important documents, which is not preferable.

A document cassette (hereinafter simply referred to as a cassette) was devised there. This cassette has a frame with a window opening that exposes the image portion of the document, and there is also a case where a transparent glass or the like is provided in the window opening.

The original document is held in the cassette so that the peripheral edge of the original document is held by a split type frame body to maintain the flatness of the original document.

When setting the original in the cassette,
The reason why the front and back sides of the original are oriented and set in alignment with the cassette is to prevent reading errors as described above. However, when loading the cassette in the reading device, do not load it in the wrong direction. It makes no sense.

Various methods are conceivable for preventing such erroneous loading, and as a prior example in this industry, a plurality of convex portions are formed on at least one surface of the frame of the cassette in an asymmetrical manner in the carrying direction. A document cassette characterized by being provided has been proposed. However, according to this prior example, erroneous loading can be prevented, but when the cassettes are stored, they will be tilted when stacked on top of each other, and several stacks will not be piled up. there were.

[0008]

In view of the above-mentioned drawbacks of the prior art, the present invention prevents erroneous loading and erroneous insertion of cassettes, and allows a large number of stacks to provide a manuscript cassette which is well organized and stored. It is an object of the present invention to provide a flat type color scanner for printing which has a cassette receiving portion for preventing erroneous insertion.

[0009]

The flat color scanner for printing of the present invention which achieves the above-mentioned object is a flat color scanner for printing, wherein the outer shape of a cassette for holding a document and supplying it to a reading section is the cassette. Is provided with a notch or a groove that is offset to one side from the center line parallel to the insertion direction of the flat color scanner for printing, and the notch of the cassette is provided at the cassette receiving port of the flat color scanner for printing. ,
Alternatively, a protrusion attached to the groove is provided.

[0010]

The originals are held in the cassette and supplied to the flat color scanner for printing in order to maintain the flatness of the originals well and to improve the handleability of the plurality of cassettes. This is to prevent the document from being scratched and scratched by holding the document.

In the present invention, the outer shape of the cassette refers to the surface of a rectangular parallelepiped that encloses the outer surface of the member forming the frame, and a notch provided parallel to the insertion direction of the cassette into the flat color scanner for printing. Means that one ridgeline of the rectangular parallelepiped is deleted to form a surface, and the groove that is offset to one side from the center line is formed on one surface of the rectangular parallelepiped in the insertion direction of the surface. By providing the groove so as to be offset to one side with respect to the center line, the insertion in the opposite direction is prevented.

By providing a notch or groove in the cassette, erroneous insertion is prevented, and since the cassettes do not stack outside of the rectangular parallelepiped as described above, they do not tilt even if stacked, so many Can be stacked.
Therefore, it is also effective when stacking them on a stacker and inserting them one after another for continuous processing.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the relationship between the cassette according to the first embodiment of the present invention and the cassette receiving opening, and FIG. 2 shows the relationship between the cassette according to the second embodiment and the cassette receiving opening. It is a perspective view.

First, in FIG. 1, a document 2 is a cassette 100.
It is sandwiched between the frame 1-A and the frame 1-B of -a, and the window portion 5 exposes the screen portion. On the lower surface of the frame body 1-B, a groove 3-a parallel to the insertion direction is provided in a portion to the left of the center line of the insertion direction (arrow) of the cassette 100-a,
This groove 3-a is a projection 4 provided at the cassette receiving port 200-a.
-A can be slid. In Figure 1, the cassette inlet
The protrusion 4-a of the 200-a has a mountain shape extending in parallel to the insertion direction, but it does not necessarily have to be a mountain shape extending continuously and may be, for example, a pin-shaped protrusion having the same cross-sectional shape.

At the bottom of the cassette 100-b in FIG.
A notch 3-b parallel to the insertion direction (arrow) is provided.
The notch 3-b coincides with the inclined portion 4-b provided in the cassette receiving port 200-b. As shown in FIG. 1 and FIG.
The cassette cannot be inserted in a direction other than the illustrated combination due to the relationship between the groove and the projection or the notch and the slope.

Further, as shown in FIG. 3, the rectangular parallelepiped shape enclosing the outer shape of the cassette enables orderly stacking.

Next, the outline of the printing flat type color scanner 12 of the embodiment will be described with reference to FIG. When the cassette 100 is inserted into the cassette receiving port 200 in the flat-panel color scanner 12 for printing, it is conveyed by the roller pair 13 and the roller 14 and is sent to the center of the moving base 11 which is on standby, and the feeding operation is canceled,
The moving table 11 moves to the right at a constant speed, and the sub-scan is performed.

On the other hand, the original stored in the cassette 100 is passed through the window of the cassette 100 and is reflected by the light source 6 located above the mirror 7.
Then, the light image is emitted by the lens 8 located below and is reflected by the lens 8 located below to pass through the V mirror 9 located below.

The reading means 10 is long in the direction orthogonal to the sub-scanning direction and covers the entire width of the illuminated original,
Main scanning is performed from one end to the other, and the entire screen of the original is read together with the sub-scan. The signal of the reading means 10 is A /
D-converted, signal-corrected, color-corrected and sent to the control means 15 for output. As shown in FIG. 1 or 2, the cassette receiving port 200 is provided with a protrusion that is offset from the center or an inclined portion is provided at a corner so as to fit in a groove or a notch of the cassette. Incorrect insertion such as reverse insertion can be prevented. Therefore, the original position of the scanner is kept correct and correct reading is performed.

[0021]

As described above, since the flat color scanner for printing of the present invention is constructed as described above, erroneous loading and erroneous insertion of cassettes can be prevented, and a large number of cassettes can be stacked. This enables the improvement of operability and space saving.

[Brief description of drawings]

FIG. 1 is a first of a cassette and a cassette receiving port according to the present invention.
FIG.

FIG. 2 is a perspective view of a cassette and a cassette receiving port according to a second embodiment of the present invention.

FIG. 3 is a perspective view showing a state in which cassettes according to the present invention are stacked.

FIG. 4 is an overall configuration diagram of a flat color printer for printing according to the present invention.

[Explanation of symbols]

 1-A, 1-B Frame 2 Original 3-a Groove 3-b Notch 4-a Protrusion 4-b Inclined part 5 Window punch 6 Light source 10 Reading means 11 Moving table 12 Flat color scanner for printing 100, 100 -a, 100-b cassette 200,200-a, 200-b cassette inlet

Claims (1)

[Claims] 1. A flat type color scanner for printing,
The external shape of the cassette that holds the original document and supplies it to the reading unit is provided with a notch or a groove that is offset to one side from the center line parallel to the insertion direction of the cassette into the flat color scanner for printing. A flat color scanner for printing, characterized in that a projection which is attached to a notch or a groove of the cassette is provided at a cassette receiving port of the flat color scanner.