JPH07280758A - Image distinguishing method - Google Patents

Abstract

PURPOSE:To easily position a sheet to be examined at a properly pressing and heating position by installing a microswitch in a step part of a distinguishing sheet supporting means as a sheet-to-be-examined detecting means. CONSTITUTION:A step part 50-3 is formed in a distinguishing sheet supporting means 70 and when a sheet to be examined 2 is inserted thereinto, a microswitch 50-5b is started working by utilizing the stiffness of the sheet 2 to be examined. Consequently, whether the sheet 2 to be examined is positioned at properly pressing and heating position is detected and the position of the sheet 2 to be examined can be corrected. Then, a distinguishing sheet 1 is pressed to the sheet 2 to be examined on a heater part 30. At that time, if the image in the pressed part is an image formed with a thermally fusable toner, the distinguishing sheet 1 adheres to the sheet 2 to be examined. When the sheet 2 to be examined is separated steadily, the distinguishing sheet 1 is drawn out while adhering to the sheet 2 to be examined and thus the sheet 2 to be examined is found to be a copy. If not, only the sheet 2 to be examined is drawn out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to banknotes, stamps, ticket,
The present invention relates to an image identification device capable of reliably and easily identifying a copy of an electrophotographic copying device such as a gift certificate.

[0002]

2. Description of the Related Art In recent years, with the progress and widespread use of color copying apparatus technology, color copies of securities such as banknotes can be easily obtained, which has become a social problem. At first glance, the quality of the copy is so high that authenticity cannot be identified. Among them, a dry electrophotographic copying apparatus is often used, which has a high recording speed, enables recording on plain paper, and has a low recording cost.

Therefore, effective measures are needed to prevent the use of such illegally copied securities.

As a countermeasure, a technique of peeling off the toner image by utilizing the heat melting property of the toner (Japanese Patent Laid-Open No. 1-22)
97294 and Japanese Patent Laid-Open No. 4-333088), an identification sheet is superposed on a test sheet, and an image portion of the test sheet and the identification sheet are pressed in a contact state,
After heating, whether the image of the test sheet is adhered to the identification sheet or not and whether the image is formed of a coloring material containing a thermoplastic (welding) resin as a main component is determined. An image identification means for identifying is known.

In the procedure by the image identifying means, first, an identification sheet composed of a small piece hooked at the lower end of the holder is pressed against the test sheet placed on the heater section. Next, the holder is separated from the test sheet. At this time, if the image of the pressed portion is the heat-fused toner image, the identification sheet adheres to the test sheet, and otherwise, it remains in the holder.

[0006]

In the conventional image identifying means, since a handy holder is manually held and pressed,
The work of aligning the image portion of the inspection sheet with the pressurizing and heating positions must be visually judged for each inspection sheet and the identification work must be performed, and the pressurizing and heating positions are likely to be unstable and the work is complicated. Becomes

It is an object of the present invention to provide an image identifying device which can easily place a test sheet at an appropriate pressure and heating position.

[0008]

In order to achieve the above object, the present invention has the following constitution. (1). The inspection sheet is superposed on the identification sheet, and the image portion of the inspection sheet and the identification sheet are pressed and heated in a close contact state, and whether or not the image of the inspection sheet adheres to the identification sheet is determined. In the image identifying apparatus for identifying whether the image is formed of a coloring material containing a thermoplastic (welding) resin as a main component, a pressurizing / heating unit for performing the pressurizing and heating, An inspected sheet supporting section for supporting the inspected sheet; an inspected sheet supporting section having a second intervening region in which the pressurizing / heating means intervenes; an identification sheet supporting section for supporting the identification sheet; A first intervening region in which the pressurizing / heating means intervenes is provided, and a member for detecting whether or not the test sheet is positioned in the first intervening region and the second intervening region on the test sheet supporting means is detected. Having inspection sheet detection means And (claim 1).

(2). In (1), the identification sheet supporting means has a guide portion and a positioning portion for the identification sheet,
The inspection sheet supporting means has a guide portion and positioning means for the inspection sheet, and the first and second intervening areas are respectively predetermined from the positioning means of the inspection sheet supporting means and the identification sheet supporting means. The opening or the recess is set at the position (claim 2).

(3). In (1) or (2), the distance from the first intervening region and the second intervening region to the inspection sheet detecting means is set to about 25 mm (claim 3).

(4). In (1) or (2) or (3), the test sheet detection means includes a microswitch provided on a stepped portion for positioning the leading edge of the test sheet provided on the test sheet support means. (Claim 4).

(5). In (1) or (2) or (3) or (4), display means is provided which functions by detecting the sheet by the inspection sheet detecting means (claim 5).

(6). In (1) or (2) or (3) or (4) or (5), the pressurizing / heating means comprises a heater and a pressing means provided above the heater and capable of coming into contact with and separating from the heater. (Claim 6).

(7). In (6), the inspected sheet detecting means also serves as a warning means for preventing overheating of the inspected sheet (claim 7).

[0015]

The sheet detection means detects whether or not the sheet to be inspected is in the proper pressurization and heating position, and the user can know this, and the position of the sheet to be inspected can be corrected. .

[0016]

【Example】

1. Outline of Image Identification Method and Apparatus In FIGS. 2 and 24, reference numeral 1 indicates an identification sheet. A treatment for facilitating the welding of the coloring material containing a thermoplastic (welding) resin as a main component is performed on one surface of the identification sheet 1.

The above-mentioned processing surface of the identification sheet 1 is superposed so as to face the image to be inspected on the inspection sheet, and the inside of the circle of the identification mark 3 at the identification position consisting of a picture of a magnifying glass is pressed and heated by the heating means. To be done.

After that, by peeling off the identification sheet from the test sheet and observing the mark portion of the identification sheet, it is possible to easily inspect whether toner adheres. Since a part of the identification sheet is pressed and heated, it is easy to peel the identification sheet from the test sheet.

As the identification sheet, a resin film can be used and it may be transparent or opaque. When a transparent one is used, it can be inspected through the presence or absence of toner adhesion.

In the case of using a so-called OHP sheet for an overhead projector, a treatment for facilitating the welding of a coloring material containing a thermoplastic (welding) resin as a main component is made on one side in advance. It is convenient.

The identification sheet 1 shown in FIG. 24 has a rectangular shape, and has instruction marks 3 on both front and rear end sides thereof in the mounting direction to the image identification device. With this, when the toner adheres, it is possible to perform the inspection twice by changing the direction with one identification sheet.

Since it is a condition of the inspection that the above-mentioned processed surface is faced and overlapped with the sheet to be inspected, it is necessary to judge whether it is the processed surface or not, that is, the front and back sides, so as not to set it by mistake. The display is made. In the example of FIG. 24, this display is composed of the characters "Please set this side up."

2. Description of Pressure Member The cross section of the main part of the image identification device is as shown in FIG. In FIG. 2, reference numeral 10 indicates a pressure member, and the identification sheet 1
And a press button portion 10-1 which is separate from the press contact portion. Push button part 10
-2 can appropriately process a member having rigidity, synthetic resin, metal, wood, etc., and an elastic material such as rubber, synthetic resin or the like can be selected as the press contact portion 10-2.

As shown in FIG. 19, the pressure contact portion 10-1 has a cylindrical shape with a flange, and the pressure contact surface is composed of a large number of small projection surface groups. As a result, the pressure per unit area on each pressure contact surface is increased and the pressure contact surfaces are distributed, so that the toner adhesion condition is good and the confirmation is easy. Moreover, the adhesion to the identification sheet is eliminated.

The pressure contact surface composed of these small projections is smaller than the identification sheet, and since the identification sheet 1 is partially pressed against the test sheet 2, it is peeled off after pressurization and heating for confirmation of toner adhesion. Easy to work.

3. Description of Heater Arrangement In FIG. 2, the pressurizing member 10 is supported by the elastic plate 20 and locked by the upper case 21 so as to face the heater 30. The elastic plate 20 has its base end supported in a cantilevered manner on the apparatus body case 40.

An opening 20-1 is provided at the free end side of the elastic plate 20.
Is formed, and the small diameter portion (diameter 10
(about mm) is fitted and is prevented from coming off by the collar portion, and the collar portion is in contact with the push button portion 10-1.

The push button portion 10-1 has its flange portion abutted against the folded portion 21-1 of the hole formed in the upper case 21 to prevent the push button portion 10-1 from coming off. It has been blocked by contact. The elastic plate 20 and the pressure member 10 constitute a pressing means 60 for pressing the pressure member 10 against the heater 30.

In FIG. 2, the test sheet supporting means 50A constructed by utilizing a part of the upper surface of the apparatus body case 40.
The sheet supporting portion 50 to be inspected and the sheet supporting portion 5 to be inspected.
A concave portion 50-1 formed in a part of 0 is provided.
The recess may be an opening.

The pressing means 60 can be brought into and out of contact with the heater 30 through the opening 20-1 by the elasticity of the elastic plate 20. That is, the pressure contact portion 10-2 is normally held at a distance from the heater 30 so that the identification sheet 1 and the inspection sheet 2 can be positioned, and the push button portion 10-1 is pressed during inspection. By doing so, as shown in FIG.
Pressurization and heating can be performed. Note that the test sheet and the identification sheet are not shown in FIG. 28 in order to avoid complexity.

4. Description of the inspection sheet, the identification sheet, the pressurizing / heating means, and the mutual positional relationship In FIG. 2, the pressing means 60 and the heater 30 constitute pressurizing / heating means. The upper surface portion of the apparatus body case 40 has a test sheet supporting portion 50 and a recess 50-1 and constitutes a part of the test sheet supporting means 50A.

The heater 30 is located in the recess 50-1,
This constitutes a second intervening region of the heating / pressurizing unit, which is the region where the pressing unit 60 descends.

As shown in FIG. 4, in the identification sheet 1, the identification sheet supporting means 70A has an identification sheet supporting portion 70 for placing the identification sheet, and guide portions 70-1 which are folded back and guide the identification sheet. Have

The identification sheet supporting means 70A is composed of a plate piece having a metal or a suitable composition, and its base end portion is supported by the apparatus body case 40 in a cantilever manner.

On the free end side of the identification sheet guide portion 70, a first intervening area 70-2 having a U-shaped opening is formed. The first intervening region 70-2 is provided to enable the pressure contact portion 10-2 to pass through via the identification sheet 1. Therefore, the heater 30 is located at a position facing the recess 50-1 serving as the second intervening region in which the heater 30 is housed.

As shown in FIGS. 2 and 4, the base end side of the identification sheet guide means 70A is cut and raised to form a positioning portion 70-3 for the identification sheet 1. Therefore, when the identification sheet 1 is attached, both sides are guided by the guide portions 70-1 and the back end is abutted against the positioning portion 70-3 to be positioned. As a result, FIG.
Of the two instruction marks 3 at the identification position shown in FIG. 4, the instruction mark 3 marked on the side opposite to the side in contact with the positioning portion 70-3 is directly below the pressure contact portion 10-2 and directly above the heater 30. Will be located.

Therefore, the first intervening region 70-2 and the second intervening region (recessed portion 50-1) have a predetermined distance from the positioning portion 70-3, that is, the instruction mark 3 at the identification position attached to the identification sheet 1. It is located at a certain distance determined by the relationship. Moreover, the first intervening region 70-2 and the second intervening region (recessed portion 50-1) are provided at the midpoint positions of the opposing guide portions 70-1.

In FIG. 4, the supporting means 50A for supporting the inspection sheet, which is constituted by a part of the upper surface of the apparatus body 40, is spaced apart from the inspection sheet supporting portion 50 for supporting the inspection sheet. In addition, there are a convex strip guide portion 50-2 for the test sheet and a step portion 50-3 for positioning the leading end of the test sheet, which are long in the insertion direction of the test sheet.

The tip of the sheet 2 to be inspected is abutted against the step portion 50-3 and positioned. First intervening region 7
0-2 and the second intervening region (recessed portion 50-1) are stepped portions 50-3.
From a predetermined position, that is, at a position corresponding to many distances corresponding to the image forming area of the bill.

This distance is indicated by symbol L in FIG. 2 and is approximately 25 mm in this example. The position at this distance is shown in FIG.
Among the instruction marks 3 of the identification sheet 1 shown in FIG. 4, the instruction mark 3 on the front side in the insertion direction is also commonly located.

Regarding the sheet 2 to be inspected, FIGS.
As shown by hatching, the distance is generally at the position corresponding to the dark portion of the image inside the sheet. As indicated by the broken line, the light-colored part does not adhere well to the toner, so avoid it if possible. Specifically, FIG.
20,000 yen bill, Fig. 22 (b) is 5,000 yen bill, Fig. 2
2 (c) is a front side of a 1,000-yen bill, FIG. 23 (a) is a 10,000-yen bill, FIG. 23 (b) is a 5,000-yen bill, and FIG. 23 (c) is a 1,000-yen bill. The respective back sides of are shown, and there is an image portion in the non-hatched area.

In this non-hatched area, since there is always an image portion at each position of the distance L (= 25 mm) from each end of the same banknote, the distance L from the step 50-3. If the first intervening region 70-2 and the second intervening region (recessed portion 50-1) are located at the position, the inside of the instruction mark 3 of the identification sheet 1 can be used as a visual target for the toner adhesion determination and the quick determination can be performed. Is possible.

5. Explanation of warning means In FIGS. 2 and 4, when the heater is in a heating state,
If the test sheet is left on the test sheet supporting means 50A while being left, the heat of the heater may damage the test sheet.

In order to prevent such an accident, the inspection sheet 2
If a predetermined time that does not damage the sheet is left on the sheet supporting means 50A to be inspected, a warning is issued.

In particular, when the image of the sheet 2 to be inspected is magnetic ink, it deteriorates when it exceeds the Curie point.
In addition, there is a change in vermilion meat, and such a warning is valid.

This warning is sounded by a buzzer. More specifically, when the sheet to be inspected is still inserted for 30 seconds or more, a beeping sound is emitted and a warning is given.

The warning means for the warning includes a detection means for detecting that the sheet to be inspected is positioned on the heater 30, a timer for detecting the lapse of a predetermined time, and a buzzer.

The above-mentioned detecting means comprises a microswitch 50-5 provided in a notch 50-4 formed in the central portion of the step portion 50-3 in FIGS. 4 and 5.

In the circuit diagram of FIG. 25, the timer is composed of a resistor R20 and a capacitor C16 which are externally attached to the integrated circuit 11-2, and when the predetermined time determined by these values elapses, the microswitch 50- Buzzer 1 by AND information with the detection information of the sheet 5 to be inspected
2 rings.

Since the micro switch is turned off except for the sheet to be inspected, the buzzer sound is stopped.

Sheet to be inspected 2 of the image identifying apparatus according to this example
Although the insertion force of is less than 1gf, the operating force of a general-purpose microswitch is about 8gf even for the light load type.
When the test sheet 2 as shown in FIG. 12 is arranged so that the actuator of the micro switch 50-5a of the type shown in FIG. 12 is pushed, the test sheet 2 is inserted until the switch is turned on, and then the hand is released. And the holding power of the inspection sheet 2 is 0
Therefore, the test sheet 2 is pushed back by the reaction force of the operating force of the actuator. In this case, the on state of the micro switch 50-5a cannot be maintained, so that the purpose of the operation of the image identifying apparatus cannot be achieved.

The sheet 2 to be inspected is inserted all the way to turn on the micro switch, and the micro switch is kept turned on without holding the sheet to be inspected by hand so that the sheet to be inspected also maintains its position. I want it to work, but that's not the case.

Here, there is a reflection type photo sensor which is often used for paper detection, but in the case of this apparatus, since the identification sheet 1 is always present on the upper surface of about 2 mm of the inspection sheet to be detected, only the inspection sheet is detected. It cannot be detected.

In this example, such a problem is solved by the following. As shown in FIG. 13, the identification sheet supporting means 70 is provided with a squeezing portion 70-4, and when the inspection sheet 2 is inserted, the inspection sheet 2 is pressed downward by the squeezing portion. The waist of the sheet (paper) is used to operate the microswitch 50-5a. That is, FIG. 14, which is a cross-sectional view taken along line XX of FIG.
As shown in FIG. 26, the test sheet 2 follows the insertion path indicated by the arrow and operates the microswitch.

In FIG. 26, the mylar 80 covers the actuator of the microswitch 50-5b and is located inside the narrowed portion 70-4 when viewed from the side, as shown by the chain double-dashed line when the sheet to be inspected is not inserted. ing. This is,
When the sheet to be inspected is inserted and the tip hits the stepped portion 50-3, the waist of the sheet to be inspected pushes down the actuator to the position shown by the solid line, and the microswitch detects the sheet to be inspected. .

When the actuator uses a roller type micro switch 50-5b as shown in FIG. 1 as the micro switch, since the heater 30 is provided immediately before, the direction of the micro switch is different from the normal use. Must be placed upside down.

However, with such an arrangement, the load of the sheet to be inspected colliding with the roller is large and the impact is large. Therefore, in order to soften the shock and operate the microswitch with a light load, the base end of the belt-shaped synthetic resin thin plate 80 is fixed to the device body case 40, the roller is covered on the free end side, and the tip of the sheet to be inspected is synthesized. The switch is operated under a light load so that the switch is acted on the thin resin plate 80.

As another example, as shown in FIG. 15, the microswitch 50 has an actuator whose shape is larger than the radius of the roller in FIG.
If -5c is used, the synthetic resin thin plate 80 is unnecessary.

If there is a layout margin, FIG.
As shown in, it is also effective to reverse the direction of the microswitch 50-5d and linearize the actuator. Also in this case, the synthetic resin thin plate 80 is unnecessary.

Here, regarding the shape of the inner portion of the first intervening region 70-2 of the identification sheet supporting means 70A, in this example,
Although it is V-shaped as shown by reference numeral 70-7 in FIG. 17, it may be U-shaped.
In comparison with the case where the cut 70-8 is orthogonal to the insertion direction as indicated by reference numeral 70-8 in FIG. 8, the sheet 2 to be inspected is smoothly inserted, and when the effect of reducing the operating load of the microswitch is added, Insertion force of test sheet is 3gf ~
It became 4 gf. In FIG. 17, the test sheet is inserted up to the position indicated by the broken line.

Here, the shape of the innermost portion of the V-shaped portion or the U-shaped portion in the insertion direction of the sheet to be inspected needs to be curved for the same reason as described above. Therefore, FIG. As indicated by reference numeral 100, the shape is cut out into a small circle. In this example, the radius of the U-shaped portion is 20 mm and the radius of the small circular portion is about 1 mm.

In order to maintain the sheet to be inspected and ensure the operation of the microswitch 50-5d when identifying the image, the diaphragm 70-4 is moved to the inside as much as possible, and the microswitch 50-5d is inspected near the microswitch. I want to hold the sheet. To do so, the V or U shape must be reduced. However, if the size of the V-shaped or U-shaped portion is reduced, the tip of the test sheet interferes with the tip of the V-shaped or U-shaped portion, and the test sheet cannot be inserted. Therefore, if a small circular cutout portion 100 is formed at the tip of the V-shaped or U-shaped portion, even if the V-shaped or U-shaped portion is made small, interference does not occur when the test sheet is inserted. It's done. Therefore, it is possible to reliably hold the test sheet by the squeezing portion and perform the identification work by heating and pressing under good conditions.

Further, in order to facilitate the insertion of the inspection sheet 2, as shown in FIG. 2, the position of the heating plate of the heater 30 is slightly lower than the inspection sheet supporting portion 50, for example, 0.3 mm lower. , The ridge has a roundness of about 2R.

6. Description of the inspection sheet detecting means Since the micro switch 50-5 detects the leading end of the inspection sheet 2, the detection information indicates that the inspection sheet 2 is correctly positioned on the inspection sheet supporting portion 50. Part 50
-3 also has a function as an inspection sheet detecting means for detecting whether or not the sheet is positioned.

In FIG. 25, when the inspection sheet 2 turns on the micro switch 50-3, the red lamp indicated by the reference numeral LED1 lights up to inform that the inspection sheet is inserted in the correct position.

7. Description of Heater In FIGS. 2 and 4, a heater called a PTC thermistor is used as a heating source as the heater 30, and the AC 100V power source is driven by a voltage transformed by the transformer 71 shown in FIG. The PTC thermistor is covered with a hot plate portion processed into a flat mirror surface to facilitate the removal of dirt.

The sheet 2 to be inspected often has images formed on both sides, and the image portion of the sheet to be inspected is brought into contact with the heater portion at the time of pressurization and heating to be pressurized and heated. Therefore, when this image is a toner image, the heater surface is soiled and the next sheet to be inspected is soiled. Therefore, the heater surface needs to be cleaned, and the mirror surface improves the cleaning property.

8. Supplementary Explanation of Image Identification Device In FIGS. 4 and 5, the device body case 40 has a box-like shape made of synthetic resin, and the bottom portion is opened and closed by the back lid 41. The opening 40-1 is provided to allow the transformer 71 to escape.

The substrate 42 is provided with the electric circuit shown in FIG. 25 on the back side, and the transformer 71 and the micro switch 5 on the front side.
0-5 and 50-6 are provided. Micro switch 50
In -6, the actuator protrudes from the opening 43, pressurization,
During heating, as the elastic plate 20 shown in FIGS. 2 and 4 moves downward, the switch pressing portion 20-2 provided in a part of the elastic plate 20 presses the elastic plate 20 to detect the pressure.

The recess 44 provided in the apparatus body case 40 is
This is a part where a finger enters to insert the identification sheet 1 into the sheet (see FIG. 3A). The identification sheet supporting means 70A and the elastic plate 20 are attached to the upper surface of the stepped portion provided in the apparatus main body case 40 from the bottom so that the respective base end portions are overlapped. A squeezing portion 70-4, which is a convex bulge, is provided in the vicinity of the first intervening region 70-2 of the identification sheet supporting means 70A, and the tip end portion of the inspection sheet 2 is lightened from above. It has the function of pressing and holding.

Further, on the base end of the elastic plate 20, the upper case 21 is covered with the push button portion 10-1 fitted in the hole portion 22 from below, and the screw hole is provided in the upper case 21. Two
3 by being screwed to the identification sheet supporting means 70A, the elastic plate 20, and the upper case 21.
And are stopped by the device body case 40.

The substrate 42 is provided with an LED 1 for displaying red and an LED 2 for displaying green, which face the holes 45 and 46 formed in the apparatus body case 40, respectively.
The lighting can be confirmed from the outside.

The board 42 is fixed to the inside of the apparatus body case 40 by screws 47. The back cover 41 is fixed to the apparatus body case 40 with screws 48. A power switch 48 is attached to the back cover 41, and a power cord 49 is pulled out. The power cord 49 is connected to the power switch 48, and the power switch 48 is connected to the transformer 71 (see FIG. 3b)).

9. Description of operation 1. Power cord 49 from the back of the image identification device
(See FIG. 3B, FIG. 5 and FIG. 6) is connected to AC 100V. two. Next, the power switch 48 (see FIG.
(B), FIG. 5 and FIG. 6). three. As a result, the LED 2 blinks (see FIG. 3A, FIG. 7 and FIG. 25). The blinking cycle is about 0.3 seconds. Figure 2
A resistor R10 externally attached to the integrated circuit IC13 shown in FIG.
After a lapse of time determined by the value of the capacitor C12, the LED 2 continuously lights up in green, indicating that the inspection is possible. This time is from 168 seconds to 228 seconds.

4. The LED 2 is continuously turned on. A heater called a PTC thermistor is used as the heater 30 (see FIGS. 2 and 4) as a heating means, and the temperature of the heating plate covering the thermistor is from 120 ° C. to 1 ° C.
A timer is set for the time required to raise the temperature to 50 ° C. The temperature of the hot plate may be detected, and when the temperature reaches a desired temperature, the LED lamp 2 may be continuously turned on.

Five. After confirming the continuous lighting of the LED lamp 2, the identification sheet 1 shown in FIG. 24 is inserted into the guide portion 70-1 of the identification sheet supporting means 70A, and the positioning portion 70-3.
(See FIGS. 4 and 9). As the identification sheet 1, an OHP film used in a copying machine can be used. This OH
The P film is a polyester film having a thickness of 80 μm
110 μm, the image surface is coated with a material that easily attaches toner, and the opposite surface is provided with a charge control material that restricts the static electricity generated by the transport of the OHP film from charging the film surface. It has been applied.

As shown in FIG. 24, in order to distinguish the front side and the back side of the OHP sheet, "Please set this side up" is printed in advance. Set.

The identification sheet 1 is rectangular (55 mm × 91 mm).
mm), the four corners are rounded (3R) to prevent jamming to facilitate insertion.

Guide portions 70-1 are formed on the identification sheet supporting portion 70 shown in FIGS. 3A and 4 at intervals of a width of 59 mm, and the identification sheet 1 having a width of 55 mm is positioned in the width direction. . In the length direction, the positioning portion 7 having a height of 3.5 mm is located at a position 79 mm from the tip of the identification sheet supporting portion 70.
0-3 are provided, and the upper case 21 is 3 mm × 5
91m long because they are arranged in a rectangular gap of 8mm
The identification sheet 1 of m has a positioning portion 70 having a height of 3.5 mm.
The tip 12 mm is exposed to the outside of the upper case 21 by being attached to -3.

Since the identification sheet is made of an OHP sheet and is transparent, "selection sheet" is printed in blank characters on the portion corresponding to the exposed end portion, and it is easy to determine whether or not the identification sheet is inserted. Can be confirmed. This part also functions as a grip allowance.

Six. The inspection sheet 2 is attached to the identification sheet supporting means 7
It is below 0A and is inserted onto the test sheet support portion 50 (see FIGS. 9A and 9B).

.. Horizontal Positioning of Test Sheet 2 In FIGS. 2 and 4, a gap of 1.2 mm to 1.7 mm is provided between the identification sheet support portion 70 and the test sheet support portion 50 and is continuous in the width direction. Is opened,
The test sheet 2 can be freely moved in the width direction, and a portion to be identified can be moved and arranged below the push button portion 10-1.

.. Positioning of the test sheet 2 in the length direction On the upper surface of the device main body case 40, 25 mm (= L) from the position corresponding to the center of the push button portion 10-1, that is, the first intervening region and the second intervening region. ) Position (see Figure 2)
Is provided with a step portion 50-3.
25m from the end surface of the sheet to be inspected
The position of m (= L) is located below the press contact portion 10-2.

.. Detection of insertion of test sheet Mechanical micro switch 5 provided in step portion 50-3
0-5 is turned on when the seat 2 to be inspected comes into contact with the stepped portion of the actuator, and the LED 0-5 serves as a display unit.
Lights up in red to inform that the sheet 2 to be inspected has been inserted in the correct position. The test sheet 2 is inserted until the red LED 1 lights up (see FIGS. 9A and 9B).

.. Inspected sheets are often banknotes, cash vouchers, securities certificates, tickets, lottery tickets, gift certificates, etc. There are many sizes of these inspected sheets, and printing The types of characters and patterns that are printed and their printing positions vary widely, and it was possible to specify the position to effectively identify the test sheet. As already described with reference to FIGS. 22 and 23, it can be seen that characters or patterns are printed at a position of 20 mm to 30 mm from the end face, and based on this, the test sheet support portion 50 and the identification sheet support are provided. The microswitch 50-5 is arranged so that the microswitch 50-5 is turned on when the determination region of the test sheet 2 inserted between the portion 70 and the portion 70 is at a position 20 mm to 30 mm from the end face.

In the step portion 50-3, the test sheet is inserted further into the back side, and the judgment area is 3 from the end surface of the test sheet.
It fulfills the function of preventing it from exceeding 0 mm. As a result, the location of the character or pattern on the inspection sheet 2 is surely located under the pressure contact portion 10-2.

Seven. ． After confirming that the LED1 is lit in red, the push button section 10
Hold -1 for about 3 seconds (see Figure 10). Push button part 10
-1 is in contact with a cylindrical pressure contact portion 10-2 having a flange portion, and is an opening 20-1 provided at the tip of the elastic plate 20.
The cylindrical portion is fitted in. The press-contact portion is made of an elastic member such as rubber, and a flange portion having a diameter larger than that of the column portion is integrally formed on the upper portion, so that it does not come off from the elastic plate 20.

The elastic plate 20 is fixed at a fulcrum 20-3 and is integral with the switch pressing portion 20-2. A micro switch 50-6 is located at a position corresponding to the switch pressing portion 20-2 in the device body case 40, and when the push button portion 10-1 is pressed, the elastic plate 20 causes the press contact portion 10-2 to move. Since it bends around the fulcrum 20-3 as a fulcrum, the actuator of the micro switch 50-6 and the switch pressing portion 20 are
-2, and when the push button portion 10-1 is further pushed down, the micro switch 50-6 is turned on.

.. Since the ON point of the micro switch 50-6 is located at a position where the tip of the press contact portion 10-2 touches or does not touch the hot plate portion of the heater 30, the push button portion 10-1.
When is pressed, the above-mentioned gap (1.2 mm to 1.7 mm) between the identification sheet 1 and the test sheet 2 is brought into close contact, and the test sheet 2 is brought into close contact with the hot plate portion of the heater 30.

When the microswitch 50-6 is turned on, as shown in FIG. 25, the LED 1 blinks for a time determined by the resistor R16 and the capacitor C15 externally attached to the integrated circuit IC11, and is turned on again. The blinking cycle is about 0.3 seconds. The user can know that the identification is completed by changing the LED 1 from the blinking state to the lighting state. When the push button portion 10-1 is released, the elastic plate 20 restores the press contact portion 10-2 away from the heater 30 as shown in FIG.

.. Here, AC100V is directly applied to the PTC thermistor used as the heater 30. Since the PTC thermistor has the characteristic that the resistance value rapidly increases at a temperature called TC (120 ° C to 250 ° C), it can be maintained at a constant temperature without control.

In this example, TC of 210 ° C. is used, and a button type element made of ceramic and SU
It is composed of an S-made electrode, an insulating sheet made of artificial mica, and a heating plate. Surface of PTC element is 210 ° C in steady state
However, the hot plate surface is heated at 140 ° C to 15 ° C. as a result of the thermal resistance of these structures and the radiation from the hot plate surface.
Balance at 0 ° C.

When the pressure contact portion 10-2 is pressed to bring the test sheet 2 and the identification sheet 1 into close contact with each other and press them against the hot plate, the hot plate is warmed up to 140 ° C. to 150 ° C. Therefore, the test sheet 2 is heated from the back surface of the sheet that is in contact with the hot plate, and the toner transferred to the test sheet is melted and adhesive force is generated with the identification sheet 1.

8. As shown in FIG. 11, the test sheet 2 is gently pulled out in the arrow direction. If the adhesive force of the toner is weak, or if the test sheet 2 is not a copy, only the test sheet 2 is pulled out, otherwise, the identification sheet is pulled out while sticking to the test sheet. It can be seen that the inspection sheet is a copy.

9. If a predetermined time, for example, 30 seconds elapses while the inspection sheet 2 is inserted in the image identification device, the buzzer 12
Sounds. Regarding this point, see "5. Explanation of Warning Means" above.
Since it was explained in the section above, it is omitted.

Ten. When the double-sided copied test sheet 2 is inserted and pressed, it adheres to the toner hot plate on the back surface and stains it. Since this stain stains the next sheet to be inspected, when a blank sheet is inserted and pressed, the stain on the hot plate due to the toner is transferred, and the hot plate can be cleaned.

[0097]

According to the present invention, a test sheet can be easily
It is possible to provide an image identification device that can be placed at an appropriate pressure and heating position.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a mounting mode of a micro switch for detecting a test sheet.

FIG. 2 is a partial cross-sectional view illustrating the main configuration of the image identifying apparatus.

3A is an external perspective view of the image forming apparatus, FIG.
FIG. 3B is a perspective view of a back side portion of the image forming apparatus.

FIG. 4 is an exploded perspective view of an upper portion of the image identifying device.

FIG. 5 is an exploded perspective view of a lower portion of the image identifying device.

FIG. 6 is a diagram illustrating an operation procedure of the image identification device.

FIG. 7 is a diagram illustrating an operation procedure of the image identification device.

FIG. 8 is a diagram illustrating an operation procedure of the image identification apparatus.

FIG. 9 is a diagram illustrating an operation procedure of the image identification device.

FIG. 10 is a diagram illustrating an operation procedure of the image identification device.

FIG. 11 is a diagram illustrating an operation procedure of the image identification device.

FIG. 12 is a diagram illustrating a mounting mode of a micro switch for detecting a test sheet.

FIG. 13 is a front view of an identification sheet supporting unit.

FIG. 14 is a side view of an identification sheet support portion.

FIG. 15 is a diagram exemplifying a microswitch for detecting a test sheet.

FIG. 16 is a diagram illustrating a mounting mode of a micro switch for detecting a test sheet.

FIG. 17 is a front view of an identification sheet supporting means.

FIG. 18 is a partial explanatory view of the identification sheet supporting means.

FIG. 19 is a perspective view of a press contact portion.

FIG. 20 is a diagram illustrating a test sheet.

FIG. 21 is a diagram partially illustrating a test sheet.

FIG. 22 is a diagram showing the image area and the image area of the inspection sheet separately.

FIG. 23 is a diagram showing the image area of the inspection sheet and the image area separately.

FIG. 24 (a) is a front view of an identification sheet, FIG.
(B) is a side view of the identification sheet.

FIG. 25 is an electric circuit diagram of the image identifying apparatus.

FIG. 26 is a diagram illustrating an operation mode of a micro switch as a test sheet detection unit.

FIG. 27 is an explanatory view in which a U-shaped portion of the identification sheet supporting means is partially enlarged.

FIG. 28 is a diagram illustrating a state when the push button portion is pressed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Identification sheet 2 Test sheet 30 Heater (constituting heating and pressurizing means) 60 (Pressing means constituting heating and pressurizing means) 50A Test sheet supporting means 50-5b (as test sheet detecting means) Microswitch 70A Identification sheet support means

Claims (7)

[Claims] 1. An inspection sheet is superposed on an identification sheet, and after the image portion of the inspection sheet and the identification sheet are pressed and heated in a close contact state, whether the image of the inspection sheet adheres to the identification sheet. In the image identification device for identifying whether or not the image is formed of a coloring material containing a thermoplastic (welding) resin as a main component, the pressurization and heating are performed. A heating means, a test sheet supporting section for supporting the test sheet, a test sheet supporting section having a second intervening region in which the pressurizing / heating means intervenes, and an identification sheet supporting section for supporting the identification sheet And a first intervening region in which the pressurizing / heating means intervenes, and whether or not the test sheet is located in the first intervening region and the second intervening region on the test sheet supporting means. Has inspection sheet detection means to detect Image identification apparatus characterized by. 2. The identification sheet support means according to claim 1, wherein the identification sheet support means has a guide portion and a positioning portion for the identification sheet, and the inspection sheet support means has a guidance portion and a positioning means for the inspection sheet. The first and second intervening areas are openings or recesses set at respective predetermined positions from the respective positioning means of the inspection sheet supporting means and the identification sheet supporting means. 3. The method according to claim 1 or 2, wherein:
An image identifying apparatus, wherein a distance from the intervening region and the second intervening region to the inspection sheet detecting means is set to about 25 mm. 4. The micro-sheet according to claim 1, 2 or 3, wherein the inspection-sheet detecting means is provided on a stepped portion for positioning the leading edge of the inspection sheet provided on the inspection-sheet supporting means. An image identification device comprising a switch. 5. An image identifying apparatus according to claim 1, 2 or 3 or 4, further comprising a display unit that functions by detecting the sheet by the inspection sheet detecting unit. 6. The pressurizing / heating means according to claim 1 or claim 2, or claim 3 or claim 4 or claim 5, wherein the pressurizing / heating means is provided above the heater and can be brought into contact with and separated from the heater. An image identifying apparatus comprising a different pressing unit. 7. The image identifying apparatus according to claim 6, wherein the inspection sheet detecting means is also used as a warning means for preventing overheating of the inspection sheet.