JPS62237863A - Original stationary type image input device - Google Patents

Abstract

PURPOSE:To improve the the accuracy of the set position and the operability by incorporating a display device changing the transmittivity of light such as a liquid crystal display device to an original document read face so as to set the original in matching with an index directly on the original read face. CONSTITUTION:The size of an inputted original and the length of the trimmed area in the X, Y directioins are supplied advance to an imge input device 11 and a marker 13 and a ruled line 14 representing the effective read range of the original are displayed on the original document read face 12 by a liquid crystal device. The original is set in matching with the marker 13 and the ruled line 14 or the like displayed on the face 12, then the liquid crystal display 13 on the face 12 is erased by an original read command to make the display transparent and then the read processing is executed. Thus, the original is set in matching with the index on the face 12 directly, the accuracy of set position is improved and the operation of a guide plate or the like is not required to improve the operability.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a document-fixing type image-powered device, and more particularly to a document reading surface on which the document is set.

Conventional technology An image input device with a fixed original uses a method in which the original to be input is set on an original reader made of a transparent plate such as a glass plate, and is read optically from the opposite side of the original reader. It is being

Normally, fixed-document type image input devices are designed to scan multiple documents with different paper sizes, or to perform trimming input in which only a portion of the document is input. It is necessary to accurately set the input document at a predetermined position on the document reading surface 1- determined by the characteristics of the imager according to the reading range.

Problems to be Solved by the Invention In conventional image input devices that fixed originals, it is necessary to set the original reading position to indicate the position of the input original when the manual original is placed on the original reading surface. Various methods are used to confirm the gutter position on the document by writing an index around the document or by placing a guide plate over the document to define the document setting position.

However, in order to read various types of originals including sizes other than the specified size and place them at specified positions as necessary, it takes a careful tl=rev of 7, making it difficult to operate.

The present invention has been made in view of the above-mentioned conventional circumstances, and
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a novel document-fixed image input device which makes it possible to eliminate the writing defects inherent in the conventional technology.

Means for Solving the Problems In order to achieve the above-mentioned object, the original fixed type image input device according to the present invention has a liquid crystal display on the whole or part of the original reading surface of the original fixed type image input device. It is constructed by incorporating an indicator that changes the transmittance of light.

Embodiment Next, a preferred embodiment of the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

Referring to FIG. 1, a display device that changes the transmittance of light using a liquid crystal display or the like is incorporated into the glass surface of the original reading unit 12 of the image input device II, and a marker 13, a contour line 14, etc., indicating the original setting position is incorporated. is displayed on the document reading surface using a liquid crystal display as necessary.

In other words, the size of the manual manuscript, the area to be trimmed
, the length in the Y direction, etc. are given to the image input device 11 in advance, and the marker +3, the marking line 14, etc. indicating the effective reading area of the document are displayed on the document reading device 12J: on the liquid crystal display. When setting the manuscript,
Center the document according to the marking lines, markers, etc. displayed on the document reading surface 2.

After setting the original, when a command to read the original is received, the liquid crystal display 13 on the original reading surface is erased, and the reading process is executed after making the original reading surface transparent.

As described in detail, according to the present invention, by displaying the th mark indicating the document setting position on the document reading surface,
When setting the original, the original can be set directly in line with the index on the original reading surface, improving the accuracy of the original setting position. In addition, there is no need to operate a guide plate, etc., and the operability of document setting work (1) can also be improved.

In addition, there are other uses such as masking the document by making a part of the document reading surface opaque by using a liquid crystal display when reading the document, which is highly effective.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, and shows a state in which an index indicating a document setting position is displayed on a document reading surface of a fixed document type image input device.

Claims (1)

[Claims] In a fixed original image input device that sets an original on the original reading surface and reads the contents of the original using an optical method, a display device that changes the light transmittance of the whole or part of the original reading surface using a liquid crystal display, etc. An image input device for fixing originals, which is characterized by incorporating the following.