JPH0795364A - Information processing equipment - Google Patents

Abstract

(57) [Summary] [Object] To reduce the number of manuscripts for sorting documents by size in an information processing device having an automatic paper feeding device and a standard size reading device. [Arrangement] A document leading edge / rear edge sensor 16 is provided on the upstream side of the reading unit 1a of the document reading device 1, and the size of the document in the conveyance direction is determined by the output of detection of the sensor 16 to set the reading field of view. , Which is designed to be able to perform fixed-size reading at all times. By doing the above, for example, by stacking A4 size originals and A5 size originals with their sides having the same length aligned and mounted on the automatic paper feeding device, the reading can be performed without causing the defects of the conventional device. Since it can be done, the number of manuscripts to be sorted can be greatly reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus, and more particularly to an improvement of its reading device.

[0002]

2. Description of the Related Art FIG. 2 is a system diagram showing an outline of the overall configuration of an information processing apparatus. In this figure, information on a document read by the document reading device 1 passes through a storage device 2 via a control device 3 that controls the reading device 1 and the storage device 2.
Sent to and stored here. The document reading device 1 is additionally provided with an automatic paper feeding device 4. The automatic paper feeding device 4 accommodates a plurality of sheet-shaped originals in a stack, and a signal from the control device 3 or a manual operation is performed. Is sent to the reading device 1 one by one, and the information read here is sent to the storage device 3 and stored therein.

[0003]

In the conventional information processing apparatus having the above-described structure, the original stored in the automatic paper feeding device 4 of the reading device 1 has a fixed size (for example, a fixed size A4 size is A5 size).
However, if a document of non-standard size, for example, a standard size A4 size document is mixed with a standard size A4 size document, the document reading device 1 reads the entire size within the standard size range. Therefore, dust or the like in the margin of the document is read. Therefore, the read image information also includes dust information, and even if information compression is performed, the amount of data is large and the load on the storage device is heavy.

In order to avoid the above problems, the documents may be sorted according to size and mounted in the automatic paper feeder.

However, it is not always easy to sort originals of various sizes according to size, because it is necessary to store data regularly and quickly, and it takes time and time.

The present invention has been made in view of the above circumstances, and provides an information processing apparatus capable of discriminating and sorting originals by size and reducing the number of steps.

[0007]

An information processing apparatus according to the present invention is an information processing apparatus having an automatic paper feeding device, a document reading device, a storage device, and a control device for controlling these devices. Is equipped with a document leading edge / rear edge detection sensor that detects the leading edge / rear edge of the document, and the document size is determined by the detection time interval of this document leading edge / rear edge detection sensor. It is characterized in that reading is performed.

[0008]

In the information processing apparatus of the present invention having the above structure,
When the originals of adjacent numbers in the same column are stacked with their long sides aligned and mounted on the automatic paper feeder, the reading field of the reading device is determined by the output time interval of the document front and rear edge detection sensors. The size is set to match the size, and the standard size is always read. Note that the number of manuscripts for sorting the originals is also reduced as compared with the case where all the originals are sorted according to size.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 in which the same parts as those in FIG.
FIG. 3 is a schematic cross-sectional view of a document reading unit of an information processing apparatus that is an embodiment of the present invention. In the figure, in the housing of the document reading apparatus 1, a document feeding roller 11, a separation roller 12, a document feeding roller 13, a document reading unit 1a, a platen roller 14 facing the document reading unit 1a, and a document discharging roller are arranged in order from the document inlet side. 15 are provided. A document presence / absence detection sensor 16 is provided immediately after the document feeding roller 11, and a document leading edge / rear edge detection sensor 17 is provided immediately after the document feeding roller 13. Further, a document discharge detection sensor 18 is provided immediately before the document discharge roller 15.

In the reading device 1, the document is conveyed at a constant speed. Therefore, the document leading edge / rear edge detection sensor 1
The time from the detection of the leading edge of the document by 7 to the detection of the trailing edge of the document represents the dimension of the document in the document transport direction.

According to the Japanese paper standard, when a rectangular paper is cut in half in its length, the aspect ratio of the cut paper becomes equal to the aspect ratio of the original paper. There is. For example, A5 and B5 are A4 and B4
The aspect ratio is the same as that of the A4 size, and the short side is 1/2 of the long side of the A4 size and the B4 size. Therefore, for example, A5 and A4
In the case where originals of A4 size are mixed, if the long sides of A5 originals are stacked and arranged on the short sides of A4 originals, a paper feed device with a fixed entrance width (width equal to A4 short sides) is used. Can be delivered. Then, the length in the transport direction of the document sent as described above is determined by the document front end / rear end detection sensor 17
If the original is A5 size or A
You can know whether it is 4 size.

As described above, the size of the original is determined,
If the reading field of the reading device is set to A4 size or A5 size, the reading is always performed by the standard reading, and the above-mentioned problem in the conventional reading device does not occur. Although the above description has been made by taking A4 and A5 sizes as an example, it is not limited to A and B sizes, and is not limited to 4 and 5 sizes, but also for other different sheets. Applicable.

Therefore, when sorting the originals, it is not necessary to sort the originals according to their sizes. If the originals are sorted into adjacent sizes such as A4 size and A5 size, B4 size and B5 size. Since it is good, it is possible to reduce the number of sorting operations and time.

[0014]

As described above, according to the present invention, since the reading field of the reading device is set according to the size of the document to be fed and the reading is always performed by the standard reading, unnecessary data due to the reading of dust or the like is obtained. Since the data is not stored, the load on the storage device can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.

FIG. 2 is a system diagram showing an outline of an overall configuration of an information processing device.

[Explanation of symbols]

 1 --- Document reading device 1a-Reading unit 2 --- Storage device 3 --- Control device 4 --- Automatic paper-feeding device 11 --- Document feeding roller 12 --- Document separating roller 13 --- Transport roller 14 Platen roller 15 Document discharge roller 16 Document presence detection sensor 17 Document leading edge / rear edge detection sensor 18 Document ejection detection sensor

Claims (1)

[Claims] 1. An automatic paper feeding device, a means for detecting the leading edge / rear edge of an original, and a document size is discriminated by a detection time interval for detecting the leading edge / rear edge of the original. An information processing apparatus comprising: a document reading device configured to be performed; a storage device for registering read information data; and a control device for controlling these.