JPH04290770A - Device for taking out form - Google Patents

Abstract

PURPOSE:To detect certainly duplication in feeding without imposing restrictions to printing areas of forms or materials of said forms by a method wherein a number on a form placed uppermost is read after said form is taken out of a hopper in numerical order, and the number of forms are judged by comparing the read-out number with a previous number already stored. CONSTITUTION:On stacking of forms 2 in a hopper 1, a number on the form 2 placed uppermost on the stacked forms is read out with an OCR 5, and the read-out number is stored in a memory 4. A comparator 5 compares, after the form 2 is taken out of the hopper 1, the number on the taken-out form with a number stored in the memory 4 on a previous taking-out, and judges that the current taking-out is correct when the number read out on the current taking-out is larger by one than the previous number in the memory 4, then the previous number is erased out of the memory 4. The same processing is repeated until the forms are taken out in necessary numbers. In the case where the number read out currently is larger by two or more than the previous number stored in the memory 4, the judgment is made that the taking-out is made in duplication, and the processing finishes with an error indication displayed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a form feeding device, and more particularly to a form feeding device suitable for accurately detecting repeated feeding of forms.

0002

2. Description of the Related Art Conventionally, in a form feeding device that needs to feed out forms one by one without overlapping, for example,
As described in Publication No. 11983, it is composed of a plurality of transmissive photoelectric sensors, A/D conversion circuits, logic circuits, etc., and responds to changes in the transmitted light amount and reflected light amount of the plurality of transmissive photoelectric sensors arranged. A method has been proposed in which a logic circuit generates a repeat feed detection pulse signal by ANDing the digital signals output from the document, thereby detecting repeat feed of a form. Also, JP-A-56-82989
In the method described in the publication, the amount of transmitted light of the transported form is detected by the form reading unit, and this is compared with the amount of transmitted light detected and stored previously, thereby accurately duplicating the form. Feed is being detected. On the other hand, in a form dispensing device that issues forms (bonds) with serial numbers, such as a bond issuing device, the bond numbers are read by an OCR (optical character reader) and the issued bonds are managed.

0003

In the above-mentioned prior art, the thickness of the form is determined based on the amount of transmitted light, so it is necessary to limit the printing area of the form to prevent misjudgment. In addition, it is necessary to provide a certain degree of uniformity to the material of the form. Furthermore, when issuing forms with consecutive numbers, OCR
No consideration has been given to the use of the serial numbers read by the system for checking repeat feeds. The purpose of the present invention is to improve such problems, and when issuing forms with serial numbers, without placing restrictions on the printing area or material of the forms.
To provide a form feeding device capable of reliably detecting repeated feeding of forms.

0004

[Means for Solving the Problems] In order to achieve the above object, the form dispensing device of the present invention includes means (OCR) for reading the serial numbers written on the forms, and a hopper for stacking and storing the forms in the order of the numbers. and a conveyance path for conveying the forms, and in a form feeding device that feeds out forms one by one from a hopper in the numerical order, means for storing the number read from the form loaded at the top of the hopper by OCR. (Storage part)
, and means (comparison unit) for comparing the number read this time from the form loaded at the top of the hopper and the number stored in the storage unit, so that the number read this time is the number read last time and stored. If the value is 1 greater than the number, it is determined that the form has been correctly fed out from the hopper, and if not, it is determined that the form has been fed out repeatedly.

[0005]

[Operation] In the present invention, after the documents are fed out from the hopper in numerical order, the number of the document at the top of the hopper is read and the number read this time is compared with the previous number already stored. Determine the number of sheets fed out from. This makes it possible to reliably detect repeated feeding of forms.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a form dispensing device according to an embodiment of the present invention. In Fig. 1, 1 is a hopper for stacking and storing forms 2, 2 is a form with a serial number written on it, 3 is an OCR for reading the number written on the form, and 4 is a memory for the number read when feeding the form. 5 is a comparison unit for comparing the number read when the previous form was fed out with the previous number stored in the storage unit 4; 6 is a form whose set state has been confirmed by a sensor (not shown); This is a feeding unit that feeds out 2 sheets one by one using a roller or the like. In this example, the serial number conventionally read by the OCR 3 to manage the form 2 is used to detect repeated feeding of the form 2.

Next, a method for detecting repeated feeding of the form 2 in this embodiment will be described. FIG. 2 is a flowchart showing the operation of the form dispensing device in one embodiment of the present invention. In this embodiment, when the form 2 is loaded into the hopper 1 (201), the number at the top of the form 2 loaded into the hopper 1 is read by the OCR 3, and the number is stored in the storage unit 4 (202). . After the form 2 is fed out from the hopper 1 in this way, its number is compared with the number similarly stored in the storage unit 4 at the time of the previous feeding (203). As a result, if the number read this time is 1 larger than the previous number in the storage unit 4, it is determined that the number has been correctly played out (204);
The previous number is erased from the recording unit 4 and the same operation is repeated until the required number of sheets is fed out (207). In addition, in step 203, if the number read this time is two or more larger than the previous number stored in the storage unit 4, it is determined that it is a repeat feed (204), and an error occurs in the CRT etc. (not shown in FIG. 1). The information is displayed (205), and the operation ends. In this way, repeated feeding can be reliably detected by reading the consecutive number, comparing the read number with the stored number, and storing the read number each time the form 2 is fed out from the hopper 1. . In this embodiment, the device is stopped when duplicate feeding is detected, but by providing the device with an automatic collection function for duplicated forms, it is possible to collect the duplicated forms, feed out new forms, and continue processing. You can also.

[0008]

[Effects of the Invention] According to the present invention, when issuing a form with consecutive numbers, by reading the serial number printed on the form and comparing it with the previous one, it is possible to do so without being affected by the material of the form or whether or not it is printed. , double feed can be detected accurately.

[0009]

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a form dispensing device in an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of a form dispensing device in an embodiment of the present invention.

[Explanation of symbols]

1 Hopper 2. Report 3 OCR 4. Storage section 5 Comparison section 6. Feeding part

Claims (1)

[Claims] Claim 1: A system comprising means for reading serial numbers written on forms, a hopper for stacking and storing forms in the order of the numbers, and a conveyance path for conveying the forms, and the form is delivered one by one from the hopper in the order of the numbers. In the form feeding device, a means for storing the number read from the form loaded at the top of the hopper by the reading means, and a number read this time from the form loaded at the top of the hopper and the memory. A means for comparing the number with a number stored in the means is provided, and repeat feeding of the form fed out from the hopper is detected depending on whether the number read this time is larger by one than the number read and stored last time. A form feeding device characterized by the following.