JPH04320162A - Facsimile sheet and facsimile equipment - Google Patents

Abstract

PURPOSE:To secure the secrecy of facsimile information by overlapping plural sheets, coloring and printing an inner side part with an external action and implementing protection print to an outer side. CONSTITUTION:Protection print is attained by printing a pattern or filling the entire face onto a front side of a sheet 1 in sheets 1,1' being a component of a pressure sensitive copying sheets. Then a coloring agent 2 subject to micro capsule is provided to a rear side of the sheet 1 and a developer 3 is coated to the surface of the sheet 1'. When the sheet formed as above is printed out by a printer, the print is recorded on the coloring face 4, then when the sheet is outputted from a facsimile equipment, the sheet is not decoded from the upper side of the sheet so long as the protection sheet 1 is not removed and the secrecy of the facsimile information is secured.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a facsimile system that makes it possible to easily and conveniently maintain the confidentiality of transmitted and received information, and to a facsimile sheet and device that can realize this system. be.

0002

2. Description of the Related Art Conventional methods for maintaining the confidentiality of facsimile information in a facsimile machine that is accessed by multiple users include providing a large-capacity storage section within the facsimile machine, or providing a communication path between the facsimile machines. Facsimile information is temporarily stored in this memory storage section, and facsimile information that is treated as confidential can be stored by a specific individual who is the recipient with a password (
Enter your ID (PIN) or use some other method to enter your ID (
Generally, facsimile information can be received only by clarifying the facsimile information (Identification).

However, in the former case, a large-capacity storage unit is required in case multiple confidential communications overlap, which in turn significantly increases the price of the facsimile machine.
Furthermore, there is a fear that accumulated important confidential information may be erased during a power outage. Furthermore, in the latter case, both the sender and the receiver must register as subscribers to a communication network that makes this possible, and building a communication network requires a huge amount of cost. In any case, information security systems that use passwords require troublesome operations during registration and updates, and there are many other problems, such as whether users can accurately remember their own passwords.

0004

[Problems to be Solved by the Invention] In view of the above-mentioned points, an object of the present invention is to eliminate the need for various operations associated with passwords, etc., and to maintain the confidentiality of facsimile information at low cost. In particular, it is an object of the present invention to provide a facsimile sheet and a facsimile machine which are suitably used for transmitting confidential documents such as confidential documents by facsimile.

[0005]

[Means for Solving the Problems] The present invention, which achieves the above-mentioned objects, has the following configuration.

That is, the facsimile sheet of the present invention is a facsimile sheet consisting of a plurality of sheets stacked one on top of the other, and at least one inner surface of the sheet is colored by an external action and is printable. And,
This facsimile sheet is characterized in that the outer surface of the sheet is protectively printed on at least a portion of one side or the entire surface.

[0007]Further, the facsimile apparatus of the present invention is characterized in that, by selecting and operating a protected communication mode on the sending side, the printed surface of the sheet is protected and printed by receiving the electric signal. This is a facsimile machine.

[0008]

[Operation] The present invention will be explained in more detail below.

The facsimile sheet of the present invention is made up of a plurality of sheets stacked one on top of the other, and in particular, when an external action is applied to the surface of the sheet, at least its inner surface develops color and prints ( (recording), and the outer surface of the sheet is protected and printed.

By using such a facsimile sheet to send and send, the information is printed on the inner surface of the sheet, and although the outer surface of the sheet is once printed, it is protected by printing, so the information is printed on the outer surface of the sheet. It cannot be decoded even if viewed directly from above, and unless the sheet located on top of the stacked sheets is removed, it will not be decoded. That is, when the information is output from a facsimile machine, there is no risk that confidential information or top secret information will be leaked even if it is viewed by an unspecified number of users of the facsimile machine.

[0011] It is preferable that the plurality of stacked sheets have their peripheral edges joined to each other. Also,
Preferably, the joint has perforations on the inside.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in more detail below with reference to embodiments shown in the drawings.

First, an example of application of a typical impact-type facsimile apparatus with printer and pressurized facsimile sheet of the present invention will be described.

FIG. 1 is a cross-sectional model diagram showing an embodiment of a facsimile sheet according to the present invention, in which 1 is a protective printing sheet surface, 1' is a sheet, 2 is a coloring agent layer,
3 is a color developer layer, 4 is a coloring surface (recording surface), and these 1
, 1' constitute a so-called pressure-sensitive copying sheet.

[0015] Here, "protective printing" means that characters, symbols, pictures, patterns, etc. are printed on the surface of the sheet, or the entire surface of the sheet is filled with color, and an ink ribbon is attached to the surface of the sheet for impact printing. This is a condition in which the printed content cannot be read from the outside even if it is printed using a printer or the like. The sheet surface is also called the protective printing surface.

Note that the sheets 1 and 1' are bonded only at the peripheral edge of the sheet surface over the entire circumference, so that they can be handled as a complete sheet. However, of course, joining at the peripheral edge is not an essential requirement for the facsimile sheet of the present invention, and it may be joined at other than the peripheral edge, or the overlapping state may be maintained temporarily. However, as long as it can be handled as a pressure-sensitive copying sheet, it may not be perfectly bonded. The material of the facsimile sheet is not particularly limited, and sheet-like materials such as paper, film, or cloth can be used.

The coloring agent 2 on the back side of the sheet 1 has a core of hydrocarbon oil in which leuco dye, which is a precursor of dyes such as crystal violet and malachite green, is dissolved, and a gelatin-gum arabic aqueous solution system. It is microencapsulated using phase separation. Further, the color developer applied to the front surface of the sheet 1' is, for example, attapulgite clay or phenolic resin.

[0018] The facsimile sheet of the present invention is
In particular, when applied to an impact dot matrix type (impact type) facsimile machine, the macrocapsules in the area where external pressure is applied by the printer are destroyed and the dye precursor that flows out develops color through a chemical reaction with the color developer. , confidential or confidential facsimile information can be recorded on the coloring surface 4 contained therein. At this time, the present invention has the advantage that it is possible to perform a printing operation with the ink ribbon attached, and there is no need to bother with attaching and detaching the ink ribbon each time. This is because the protective printing is applied to the surface of the sheet, so even if a normal printing operation is performed thereon, the contents cannot be read from the outside. Further, in order to achieve this purpose, the facsimile sheet of the present invention is preferably opaque so that the contents printed on the inside from both the front and back sides cannot be read from the outside.

Furthermore, the facsimile apparatus of the present invention has a structure in which at least the printing surface of the received sheet can be protected by printing before the sheet is ejected. In other words, after the transmitted content is printed by the printer of the facsimile machine, another printer (hereinafter referred to as the "protected printing printer") further prints on the surface of the sheet to prevent the transmitted information from being deciphered. It is. The protective printing is achieved by printing characters, symbols, pictures, patterns, etc., or by filling the entire surface of the sheet. The degree of protective printing is determined based on the fact that the transmitted information cannot be read, and the print density, print density, etc. are determined as appropriate. Of course, protective printing should be performed appropriately where necessary, and written parts such as addresses are preferably readable from the outside, and it goes without saying that it is preferable that protective printing not be performed on these written parts.

[0020] Such a protected printing printer is not particularly limited, and conventionally known printing methods can be applied. For example, the methods include mechanical, pressure-sensitive recording, heat-sensitive recording, discharge destruction, inkjet, and electrostatic recording, and are appropriately selected depending on the type of facsimile machine used. Furthermore, the facsimile device of the present invention has a configuration in which, by selecting and operating a protected communication mode on the transmitting side, the electrical signal can be received and the printed surface of the sheet can be protected and printed. By reading a mark indicating protection and recognizing the mark from received information, the printing surface of the sheet can be protected. By applying such a facsimile device, there is an advantage that protected printing can be freely specified on the sending side, and that normal facsimile communication can be performed when protected printing is not specified.

The present invention is not limited to an impact-type facsimile device and its facsimile sheet, but can also be realized in a non-impact type facsimile device with a printer and its facsimile sheet. A typical example is a facsimile sheet that uses a so-called heat-sensitive recording sheet that utilizes a heated color reaction, and that prints (records) on the sheet using a facsimile machine equipped with a printer unit equipped with a thermal element such as a thermal head or thermal pen. It will be done. In printing on the inner surface of the sheet using this method, the heat emitted from the thermal element passes through the outer cover sheet of the facsimile sheet, heats and colors the color-forming material present on the inner surface of the sheet, and prints (records). In order to make the printing clearer or more reliable, such sheets are preferably thinner than ordinary facsimile sheets, and are made of a material that easily conducts heat. preferable. Alternatively, it can be realized by combining the above-mentioned heat-sensitive recording sheet, a laminated sheet made by overlapping a color filter sheet that blocks light in the visible range and transmits light in the infrared range, and an optical printer using an infrared laser as the light source. Ru.

In the present invention, "coloring due to external action" means that coloring occurs due to the action of externally applied force or heat, and printing (recording) is possible. The effect may be any type of energy such as pressing force, heat, or laser beam, and is not particularly limited.

Further, in the facsimile apparatus of the present invention, when the sending side selects and transmits a specific communication mode such as confidential or top secret, the receiving side receives the electrical signal of the specific communication mode and determines the type of sheet to be supplied. It has a configuration that allows you to select. To explain in more detail, after securing a communication path and before transmitting a message, the transmitting side sends an electrical signal in the specific communication mode described above. The receiving side recognizes this and selects the tray in which confidential or top secret cut sheets are stocked, that is, drives the sheet conveying roller of the tray, guides the sheet to the printer section, and prints the communication message. Let's do it. Furthermore, the facsimile device of the present invention may include a mark indicating that the transmitted document is confidential or confidential, such as "confidential", "confidential", "□□□-□", "☆☆☆", "0101", etc. ,
If it is written as "AASS", the mark is recognized from the received information and the type of supply sheet designated by the mark can be selected. With this configuration, the facsimile device of the present invention can select and receive specific sheets depending on the type of information, and is extremely suitable for specific transmission and reception of confidential or top secret information. It is also possible to use it as a facsimile.

[0024] The facsimile sheet of the present invention is
If the periphery is joined, after receiving the facsimile information, the joint,
It is even more preferable to provide perforations on the inner circumferential side of the bonded portion.

Although the size of the facsimile sheet according to the present invention is not particularly defined, for example, the size of the facsimile sheet is A.
4. It may be a single sheet of an appropriate size such as B4,
Furthermore, a continuous sheet forming a continuous body of such sheets may be used. Further, in order to increase the accuracy of sheet feeding, perforations called sprockets may be added at both ends parallel to the sheet feeding direction.

[0026]

[Effects of the Invention] As described above, the facsimile system formed by the facsimile sheet and device of the present invention is
This has the excellent effect of completely eliminating the need for various operations associated with conventional passwords and maintaining the confidentiality of facsimile information at low cost. For this reason, it is effectively used for communicating various confidential and confidential information, such as deposit account borrowing details, stock transaction reports, confidential and confidential documents, and the receipt and transmission of privacy documents.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional model diagram showing one embodiment of facsimile paper according to the present invention.

[Explanation of symbols]

1: Sheet (protected printing surface) 1': Sheet 2: Color former layer 3: Color developer layer 4: Coloring surface (recording surface)

Claims (13)

[Claims] 1. A facsimile sheet consisting of a plurality of sheets stacked one on top of the other, at least one surface of the inner surface of the sheet is colored and printable by an external action, and the outer surface of the sheet is A facsimile sheet characterized in that at least a portion of one side or the entire surface is printed with protective printing. 2. The facsimile sheet according to claim 1, wherein a plurality of sheets are stacked with their peripheral edges joined to each other. 3. The facsimile sheet according to claim 1, further comprising a perforation on the inside of the joint. 4. The facsimile sheet according to claim 1, wherein the material of the sheet is paper, film, or cloth. 5. The facsimile sheet according to claim 1, wherein the sheet is opaque. 6. A facsimile apparatus characterized in that, by selecting and operating a protected communication mode on the transmitting side, the printed surface of the sheet is protected and printed by receiving the electric signal. 7. The transmitter according to claim 6, wherein the printed surface of the sheet is protected by reading a mark indicating protection on the transmitted original sheet and recognizing the mark from the received information. facsimile machine. 8. The facsimile apparatus according to claim 6, wherein the printer section is an impact printer. 9. The facsimile apparatus according to claim 8, wherein the impact type printer section is a dot matrix type printer. 10. The facsimile apparatus according to claim 6, wherein the printer section is a non-impact type printer. 11. The facsimile apparatus according to claim 10, wherein the non-impact printer section is a thermal printer. 12. The facsimile apparatus according to claim 8, wherein the type of sheet to be supplied is selected by receiving the electric signal by selecting a communication mode on the transmitting side. 13. The facsimile apparatus according to claim 8, wherein the type of supplied sheet is selected by reading a mark written on the transmission document sheet and recognizing the mark from received information.