JPS58216267A - Copying device - Google Patents

Abstract

PURPOSE:To make arrangement that the copying can be performed only when specified marks on both originals and copying paper are read, by installing two readers which read the specified marks on originals and copying paper. CONSTITUTION:The 1st mark reader 11 is to read a specified mark put on an original (0) and installed to a position near the 1st scanning mirror 4 where the reader 11 does not obstruct the transmission of the light image of the original (0). The 2nd mark reader 12 is installed to a position, from which the reader 12 can read a specified mark put on the copying paper (P) in a paper feeding cassette 8. When the specified mark is put on an original, the copying can be performed only when the copying paper with the specified mark is read, and no copying is performed when other copying paper is fed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reproduction apparatus, ie a so-called copy machine.

There are some documents that should not be allowed to be copied without restriction.

For example, it is a document containing confidential matters.

the ability to make unlimited copies of such confidential documents;
leading to the leakage of secrets. Conventional copying machines were capable of copying all documents, regardless of whether they were specific documents or not, so it was necessary to strictly manage confidential documents.

This invention can be applied to specific manuscripts such as secret documents.
It is an object of the present invention to provide a copying device that cannot make copies unless specific copying paper is used.

A copying apparatus according to the present invention includes a first mark reader that reads a specific mark on a document, a second mark reader that reads a specific mark on copy paper, and a second mark reader that reads a specific mark on a copy sheet. The present invention is characterized in that it includes a control device that permits copying only when a specific mark is read from the copying sheet.

For specific manuscripts for which unlimited copying should not be permitted,
If a specific symbol such as a mark [phase] is attached to the required location, this mark can be read by the first mark φ reader number. Also, a specific copy paper is prepared which is used only for copying such specific originals, and this copy paper is recorded with specific marks such as bar codes or the above-mentioned symbols, or is watermarked. ing. Specific marks on such copy sheets are detected by a second mark reader. If a specific mark is detected on the document, the specific mark is attached, the copy paper is set in a predetermined position, and this mark or a second mark is added.
Copying is possible only when read by a reader,
Copies cannot be made even if other copy paper is set.

Therefore, it is important to strictly manage specific types of copy paper.
This prevents unauthorized or unlimited number copying of specific manuscripts, such as confidential documents. Confidential documents, in addition to their own strict management, are also protected by the paper on which they should be copied. It also allows for double checking, which helps prevent secrets from being leaked.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows the internal arrangement of the copying machine, FIG. 2 shows its top surface, and FIG. 3 shows its electrical structure. As is well known, a document table glass (2) is provided on the top surface of the copying device (1). This glass (2)
An illumination light (3) and a first scanning mirror (4) are movably arranged below the glass (the original placed on the second side (0)).
) is scanned. The optical image of the original (0) is transferred to the second scanning mirror (
5) and lens system (6), then the rotating photoreceptor drum (
7) Image the top one. Arranged around this drum (7) are a corona discharger that forms an electrostatic latent image based on a light image, a developing device that develops this latent image to form a toner image, a static eliminator, a cleaner, etc. has been done. Copy paper (P
L is stored in the paper feed cassette (8), and during copying (this is fed out one by one from this cassette (8), and after the toner image on the drum (7) is transferred, it is transferred to the heat fixing device (9). The image is fixed in the image, and the image is ejected as an image.

In this embodiment, an FM signal of the type scanned by illumination lights and mirrors is used.
Although a tf device is shown, the present invention is also applicable to a device in which the document (0) moves. Also, although only one paper feed cassette is shown in the figure, a device in which a document (0) is moved is also applicable. Needless to say, it is well known.

On the top of the copying device (1), there is an indicator 05) that indicates that copying is not possible, and an indicator light (1) that indicates that copying is possible.
6), a numeric keypad (1η) for inputting necessary numerical information such as the number of copies, a power switch (18+), a copy start switch +191, an indicator for copy paper size, a switch for specifying this size, etc. are arranged. .

The first mark i-reader (11) reads a specific mark attached to the original (0), and is located near the first scanning mirror and transmits the optical image of the original (0). The light image of a specific mark on the original to+ may be guided to the mark reader (11) through a splitter such as a Hartz mirror. ) as a mark attached to "l",
For example, there are [phase] symbols, bar codes, etc. It is preferable that the position of this mark is set at a certain location on the document (0), for example, at the upper left or upper right position, which allows the mark reader (11) to be fixed.

The second mark reader (121 is the paper feed cassette (8)
There is one position on the copy paper (P) where old specific marks can be read. Paper cassette (8)
If two or more mark readers (12) are set, two or more mark readers (12) are prepared accordingly. Copy paper (
Specific marks that may be placed on the Pl include a watermark in which the paper itself is numbered, a [phase] symbol, a bar code, and the like. Each mark reader fill Ul is selected depending on the mark to be read. Mark readers generally detect marks optically, but if the mark is recorded using other physical quantities such as magnetism, a corresponding sensor is used.

A microprocessor (hereinafter referred to as MPU) is preferably used as a control device for this copying apparatus (1).

The MPU 20+ is equipped with a memory 1) for storing its programs and necessary data. Also MPU
IM includes a display device (15), a display device (t23) including an indicator light (16), a numeric keypad +17), and other keys (1B).
A key group control circuit C including f19+, a mark reader fill (121, and a drive control device for controlling a drive mechanism for copying, such as a motor) are connected via an interface (2). Copying device (1
) is relatively simple to control, the control device can also be configured by hardware.

FIG. 4 shows a procedure for controlling copying by the control device.

When the power switch (18) is turned on, the heat fixing device (
9) Warming up such as heating is performed (step +311), and when copying is possible, a blue indicator will appear.
l'(1'[il is lit (step 021) and waits for the start switch (19) to be turned on (step beginning)).

When the start switch f11 is turned on, it is checked whether the mark reader (11) has read a specific mark from the document (0) (step), and if it has not been read, it is normal because it is not a specific document. The copying operation is started (step (351)).

When the set predetermined number of copies have been completed, the copying operation ends (step 06).

If a specific mark is read from the document (0) by the mark reader (1]), the next mark reader (
121 is checked (step (9)).

When a specific copy paper is stored in the cassette (8), the mark reader (121) reads a specific mark on the paper IPI. In this case, the process moves to step (35) and copying starts immediately. Ru.

If the copy paper in the cassette (8) is not the specified one, the mark reader (1) does not read the specific mark, so copying is immediately prohibited (step +38+), and the display f15+ indicates that copying is not possible. is displayed, and the indicator light (16) is turned off.When the mark-reader (11) moves or scans, the document (0) is displayed.
In the case of reading a mark, the movement or scanning of the mark is also stopped and the mark reader (11) returns to its original position.

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t-+ir rrm By replacing the stored paper, a specific copy paper is set, or a specific original on the document table (2) is removed. If the specific document is removed, the mark reader (11) will no longer detect the specific mark on the document, so the answer at step (40) is NO and the process returns to step (33). Then, the copying is either given up or the copying of another manuscript is moved on.

If the specific original is left as it is and the copy paper is replaced, YES is returned in step (40), and step @(
I'm back. If the newly set copy paper is a specific one, the answer is YES in step 351i, and copying becomes possible.

In step (341@i), the fact that a particular mark has been read means that each mark reader (Ill +1
This means that the pattern of the mark read by 21 matches the predetermined pattern.

This pattern matching also includes the fact that the read signal of the mark reader simply exceeds or falls below a predetermined threshold (level discrimination). Of course, it is not necessary that the patterns of mark readers (11) and (121) match.If there are multiple cassettes (8), one of the mark readers (12) corresponding to the name cassette or paper If the mark reader corresponding to the cassette number designated by the size designation switch number reads a specific mark on the copy paper, the answer is YES in step ((5)).

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a layout diagram of a copying device, FIG. 2 is a top view of the same device, FIG. 3 is a block diagram showing the electrical configuration of the same device, and FIG. 4 is a block diagram showing an electrical configuration of the same device. is a flowchart 1 showing the procedure of a copying operation. (S...Fist and belly copy Mt J111121...Mark...
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Ha; (槁、lp) **-Copy paper. Special+? 11 people, 1 person, 4 people outside of Tateishi Electric Co., Ltd. Figure 2

Claims (1)

[Claims] A first mark for reading a specific mark attached to a document.
a second mark reader that reads a specific mark on the copy paper, and a control that allows copying only when a specific mark is read from the copy paper if a specific mark is read from the original. A copying machine, which is equipped with a device.