JP2003263084A - Digital copying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital copying machine which can prevent forgery of documents. <P>SOLUTION: Original documents which are desired to be prevented from being copied, patterns such as marks and stamps, and character strings are registered in the digital copying machine. When any one of the registered patterns is detected after the original document is read, copying is not carried out. This prevents copying of the original document which a right holder does not intend. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital copying machine provided with a forgery prevention function.

[0002]

2. Description of the Related Art As for the anti-counterfeiting technology of a digital color copying machine, it seems that it is already on the market as a product (for example, "copying machine" in Japanese Patent Laid-Open No. 4-227365), and when it is copied, it is a banknote. Whether or not the bill drawing pattern is stored is recognized.

[0003]

However, the above-mentioned conventional techniques have been made only in consideration of application to banknotes and securities, and general users may want to personally prevent copying. is there.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a digital copying machine capable of preventing the forgery of a general document by using the forgery prevention technique for an arbitrary pattern. And

[0005]

In order to achieve the above object, the invention according to claim 1 registers an arbitrary manuscript designated by a user as a forgery prevention pattern in a digital copying machine having a forgery prevention function for bills and the like. However, the original document registered as the forgery prevention pattern is not copied.

According to a second aspect of the invention, in the invention of the first aspect, an arbitrary mark designated by a user,
It is characterized in that the stamp is registered as a forgery prevention pattern and the original document including the forgery prevention pattern is not copied.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention described above, a character string pattern designated by a user is registered as a forgery prevention pattern, and a document including the forgery prevention pattern is not copied.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of a digital copying machine of the present invention will be described in detail with reference to the accompanying drawings. 1 to 5, there is shown an embodiment of a digital copying machine of the present invention.

First, the configuration of this embodiment will be described with reference to FIG. When the copy prohibited document registration is designated on the operation panel 101 and the document is read by the reading unit 102, the document pattern is stored in the pattern storage memory unit 103. If the original read by the reading unit 102 is the same as the original pattern obtained from the pattern storage memory unit 103, the image forming unit 104 paints black, and the print output control unit 1
At 05, printing and discharging are performed as usual.

FIG. 2 shows the external shape of the digital copying machine.
Intended for digital copiers. It has an operation panel 201 for instructing registration of copy-prohibited documents. Paper feed tray 2
Printing control such as selection of 02 and the paper discharge tray 203 is performed under the same control as when copying is performed normally.

First, a procedure for registering a document whose copying is prohibited will be described. First, the user presses the "counterfeit prevention pattern registration" button on a page that only the administrator who knows the access code on the initial setting screen can enter. Next, place the original that you want to prevent from forgery on the scanner. Then, the pattern registration password is specified and the pattern registration execution button is pressed. The digital copying machine stores the anti-counterfeit original pattern in a non-volatile memory. Unless you enter a password to cancel the original, if you try to duplicate an original with the same pattern as this original, the copy will be filled with black, and the anti-duplication function will work.

An operation procedure for preventing forgery will be described with reference to the image registered by the above procedure. First, the document is read (step S301). When the copy prohibition registration is not designated (step S302 / No), an image is formed as usual (step S30).
3).

If the copy prohibition registration is designated (step S304 / Yes) and the read original pattern is the same as the designated copy prohibition pattern (step S304).
304 / Yes), and it is regarded as illegal and a black-painted pattern original is generated as illegal image formation (step S305).
The image data is printed out (step S306).

Next, a procedure for registering a pattern such as a mark or stamp for which forgery is to be prevented and forgery for this pattern will be described. First, the user presses the "counterfeit prevention pattern registration" button on a page that only the administrator who knows the access code on the initial setting screen can enter.
Next, marks that you want to prevent from forgery (such as confidential stamps)
Place the pattern on the scanner. Then, the pattern registration password is specified and the pattern registration execution button is pressed. The digital copying machine stores the forgery prevention mark pattern in a non-volatile memory. Unless you enter the password to cancel, if you try to copy a document that contains the same pattern as this pattern, the copy will be filled with black, and the copy protection function will work.

Next, a forgery prevention method using the registered pattern will be described with reference to the flow chart shown in FIG. First, document reading is performed (step S401). When the copy prohibition registration is not designated (step S402 / No), an image is formed as usual (step S403). If the copy prohibition registration is specified (step S402 / Yes) and the specified copy prohibition pattern is present inside the read document (step S404), it is considered to be illegal and a black-painted pattern document is determined as an illegal image formation. It is generated (step S405).
The image data is printed out (step S406).

Next, register a character string whose forgery is to be prevented,
A procedure for preventing counterfeiting of this pattern will be described. First, the user presses the "counterfeit prevention pattern registration" button on a page that only the administrator who knows the access code on the initial setting screen can enter. Next, place the original of the character string that you want to prevent from forgery on the scanner. Then, the pattern registration password is specified and the pattern registration execution button is pressed. The digital copying machine stores the anti-counterfeit original pattern in a non-volatile memory. Unless you enter the password to cancel, if you try to copy an original that contains the same character string as this original, the printed matter will be filled with black, etc.
The anti-duplication function works.

Next, a forgery prevention method using the registered character string pattern will be described with reference to the flow chart shown in FIG. First, the document is read (step S501). When the copy prohibition registration is not designated (step S502 / No), an image is formed as usual (step S503). If the copy prohibition registration is specified (step S502 / Yes), each read line is checked as a character string through an OCR (character recognition program), and if the specified copy prohibited character string pattern exists (step S502). S504 / Yes),
It is regarded as illegal and a black-painted pattern original is generated as an illegal image formation (step S505). The image data is printed out (step S506).

As described above, according to the present embodiment, when a document, a pattern such as a mark or a stamp, or a character string for which copying is desired to be prevented is registered in the digital copying machine and the registered pattern is detected when the document is read, Do not copy. Therefore,
Therefore, it is possible to prevent copying of a document which is not intended by the right holder.

The above-described embodiment is a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.

[0020]

As is apparent from the above description, according to the present invention, an original document for which copying is desired to be prevented, patterns such as marks and stamps, and character strings are registered in a digital copying machine, and the registered pattern is read when the original document is read. When it is detected, copying is not performed. Therefore, it is possible to prevent copying of a document which is not intended by the right holder.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment according to the present invention.

FIG. 2 is a diagram showing an external shape of a digital copying machine.

FIG. 3 is a flowchart showing an operation procedure.

FIG. 4 is a flowchart showing an operation procedure.

FIG. 5 is a flowchart showing an operation procedure.

[Explanation of symbols]

101 Operation panel 102 reading control unit holding unit 103 pattern storage memory 104 image forming unit 105 Print output control unit

Claims (3)

[Claims] 1. A digital copying machine having a forgery prevention function for bills and the like, wherein an arbitrary manuscript designated by a user is registered as a forgery prevention pattern, and the manuscript registered as the forgery prevention pattern is not copied. A digital copying machine. 2. The digital copying machine according to claim 1, wherein an arbitrary mark or stamp designated by a user is registered as a forgery prevention pattern, and a document containing the forgery prevention pattern is not copied. 3. The digital copying machine according to claim 1, wherein a character string pattern designated by a user is registered as a forgery prevention pattern, and a document containing the forgery prevention pattern is not copied.