JPH0952432A - Printing method for making form impossible to be copied - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printing method wherein printing is applied onto forms for various kinds of bills and checks to make them impossible to be copied by using a low priced printer on the market. SOLUTION: In printing a sum of money on a bill or a check, duplicate printing is applied so as to copy it clearly on a rear side of a form by permeation of ink and so as to stop the permeation of ink inside the form.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing method for printing sheets such as bills and checks on non-copyable sheets, and more particularly to copying sheets such as bills and checks using a commercially available inexpensive printer. It relates to a device devised so that it can be applied to the impossible.

[0002]

2. Description of the Related Art To enter the amount of money on bills and checks,
Usually use a check writer. In this method, the amount is written in Arabic numerals (simultaneous numbers) and, at the same time, unevenness is engraved on the paper. This unevenness makes it impossible to copy. Therefore, when printing a bill or a check, a dedicated printing device with a built-in check writer is used. That is, it is not possible to apply a predetermined paper such as a bill or a check to a non-copyable material without using a printing device dedicated to it.

[0003]

In order to apply a paper such as a bill or a check to a non-copyable paper, an expensive printing device dedicated to the paper is required. For example, when a commercially available inexpensive printer is used, it is impossible to apply a predetermined paper such as a bill or a check to a non-copyable one.

The present invention has been made on the basis of the above points, and it is an object of the present invention to use a commercially available inexpensive printer so that it is impossible to copy predetermined paper such as various bills and checks. It is to provide a printing method that can be applied to.

[0005]

A printing method according to the present invention will be described in order to achieve the above object. First of all, on paper such as bills and checks, the characters printed in advance on the front side do not appear on the back side. In other words, it is assumed that the paper thickness is that much. That is, it is characterized in that overlapping printing is performed so that the image is clearly printed on the back side of the paper due to ink penetration. At this time, ink penetration must not stop on the back side surface of the paper and must be stopped inside the paper.

[0006]

In the case of the present invention, it is assumed that a paper such as a bill or a check is applied to a non-copyable paper, and it is used as a commercially available general-purpose product without using an expensive printing device dedicated to it. It is designed so that it can be applied to something that cannot be copied using the inexpensive printing device of. The phenomenon that ink penetration has stopped inside the paper due to the above printing method cannot be copied. That is, it is a fact that the phenomenon of ink permeation inside the paper cannot be copied. This can be judged from the following points. 1) On paper such as bills and checks, characters printed in advance on the front side do not appear on the back side. In other words, there is that much paper thickness. 2) For copying, the basic mechanism is that heat is applied to fine resin powder called toner to melt the powder, and the powder is attached to the surface of the paper. That is, the paper used for copying is not absorbent and ink permeation by copying does not occur. For example,
It is easy to determine whether or not it can be used as copy paper, assuming absorbent paper. For example, when the ink is dropped on the water collecting paper, the surroundings will bleed and the ink will penetrate into the inside. For example, if ink permeation occurs due to copying, naturally the ink around the surface also bleeds. 3) Assuming the above, whether or not copying is possible such that only a certain part penetrates the ink. The fact is clear and false. 4) When the copy paper is thin, it may be reflected on the back side of the copy paper even if ink penetration does not occur, but in this case, other preprinted characters and the like are also reflected. 5) Whether or not it is possible to directly copy the ink penetration phenomenon on the back side of the paper, that is, inside the paper. This is also clear and false. Copies cannot be copied up to the phenomenon inside the copy paper.

[0007]

The first embodiment of the present invention will be described below. In the case of the present embodiment, basically, it is possible to apply various types of paper such as bills and checks by banks to non-copyable ones by using a commercially available inexpensive printer. For example, FIG. 1 is a bill. FIG. 3 is a check. In both cases, only the amount of money is printed in Chinese numerals. FIG. 2 is the back side of the bill. Reference numeral 1 indicates an ink penetration phenomenon inside the paper. It should be noted that the back of the check is plain and is only an ink penetration phenomenon. That is, the papers such as bills and checks are unified papers, but the paper quality differs depending on the bank. However, the following are common. Paper such as bills and checks has excellent absorbency and is characterized by ink penetration. Also, characters such as bills and checks that have been printed on the front side of the paper do not appear on the back side. In other words, there is that much paper thickness.
When the amount of money is printed on a paper such as a bill or a check having the above-mentioned characteristics with a printer, it may appear thin on the back side of the paper. So much
It is easy for ink to penetrate. For example, the quality of paper used by the bank, the characteristics of the printer used, etc.
Assuming that the usage environment is different, it cannot be absolutely certain that the image will appear behind the scenes. That is, by performing the overlapping printing, it is possible to more clearly copy it on the back side. Overprinting is adapted to, for example, the quality of paper used by a bank, the characteristics of the printer used, or the like, that is, the usage environment. Further, by performing overlapping printing, further ink permeation occurs on the back side of the paper, but it stops inside the paper due to the paper thickness of the paper. In other words, the phenomenon of ink permeation inside the paper can be realized depending on the paper thickness of the paper. That is, in a paper such as a bill or a check, it is possible to realize a phenomenon in which the ink is clearly printed on the back surface of the paper due to the ink penetration, and the ink penetration does not appear on the back surface of the paper, and the ink stops inside the paper. In other words, it is a fact that the ink penetration phenomenon inside the paper cannot be copied.

That is, it is appropriate to perform duplicate printing twice or three times. This is because it relates to bills, checks, etc., and is as follows. Immediately after printing, the phenomenon of ink penetration inside the paper must be visually recognizable. This is because it must be judged that copying is impossible. Note that suppressing the number of times of duplicate printing leads to suppressing ink penetration. In other words, there is an advantage that the image quality on the back side of the paper immediately after printing is a guideline. After a lapse of time, the image becomes slightly dark and clear due to ink penetration, but it does not change extremely. Basically,
It is good if ink penetration does not appear on the back side surface of the paper, but if the number of times increases, it will appear more clearly, but it will be difficult to judge whether or not it has appeared on the back side surface. In reality, duplicate printing five times or more is meaningless. On the contrary, the usage environment may be adjusted. For example, even if the overlapped printing is performed three times, but only a faint image is visible on the back side, the printer ribbon may be newly replaced and the overlapped printing may be performed twice.

A second embodiment of the present invention will be described below with reference to FIG. For example, FIG. 2 is the back side of a bill. Reference numeral 1 indicates an ink penetration phenomenon inside the paper. The right side of FIG. 2 corresponds to the upper side of the front side, and the left side of FIG. 2 corresponds to the lower side of the front side. That is, since the back side of the handprint is used for endorsement, it may be overwritten by the endorsement, and the ink permeation phenomenon inside the handprint paper may not be determined. That is, the fact that copying is impossible is eliminated. Therefore, since the bill is a unified paper, if the amount print position of the bill is printed from the left end of the amount column, the back side of this position is not used in endorsement, that is, it is the place where the endorsement is not written, The letters will appear in this place. The Arabic numeral (arithmetic numeral) is "\" for printing, and the Chinese numeral printing is for "gold".
It is a fact that even this single character cannot be copied.

[0010]

As described above in detail, according to the non-copyable printing method of the present invention, a commercially available inexpensive printer is used for various types of paper such as bills and checks issued by various banks. Thus, there is an effect that it can be applied to something that cannot be copied.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an example of a bill.

FIG. 2 is the back side of a bill.

FIG. 3 illustrates an example of a check.

[Explanation of symbols]

 1 Indicates the phenomenon of ink penetration inside the paper.

Claims (2)

[Claims] 1. When printing the amount of money on a bill or a check, in order to clearly print on the back side of the paper due to ink permeation and to prevent ink permeation inside the paper,
A printing method characterized by performing duplicate printing. 2. The printing method according to claim 1, wherein the amount printing position on the bill is printed from the left end portion of the amount column.