JPH09123557A - Ink sheet identifying unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an ink sheet identifying unit comprising only one type of ink cassette in which the type of ink sheet can be identified by simply mounting an ink cassette on a video printer without turning a bobbin on the supply side. SOLUTION: A bobbin on the supply side is fitted, to any one flange part thereof, with an identification member 13 provided with identification patterns 13a, 13b. The identification patterns 13a, 13b are arranged, respectively, in rings of different diameter. The identification pattern 13a is formed by painting black color having such optical characteristics as not reflecting the light from a reflective sensor 14 whereas the identification pattern 13b is formed by painting while color reflecting the light from the reflective sensor 14. When the bobbin on the supply side provided with the identification member 13 is contained in an ink cassette and then the ink cassette is loaded to a video printer, the reflective sensor 14 emits light and detects the combination of arrangement of identification patterns 13a, 13b based on the presence of reflected light. According to the constitution, the type of ink sheet can be identified without turning the bobbin on the supply side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color printing apparatus in which an ink cassette loaded with an ink sheet can be replaced, and more particularly to an ink sheet identification apparatus suitable for easily identifying an ink sheet.

[0002]

2. Description of the Related Art Conventionally, images from a personal computer, a camera-integrated video tape recorder, an electronic still camera, etc. have been soft-copied by a display device or the like capable of displaying high resolution. However, in recent years, a color printing device (hereinafter referred to as a video printer) capable of displaying an image as a full-color, high-definition hard copy image of these information sources has been developed and put into practical use. There is also.

In general, a video printer is color printing in which dyes of three colors, for example, yellow (Y), magenta (M), and cyan (C) are cyclically applied in a predetermined order according to a video signal of an information source. The ink film sheet for printing (hereinafter abbreviated as ink sheet) is circulated, and the Samar head is heated to sublimate the dye in the ink sheet to perform color printing for one color on the recording paper (thermal transfer recording paper). That is, similarly, for the other colors, the ink sheet is circulated and the recording paper is rewound to sublimate the other paint, thereby completing the color printing for one screen. In such a video printer, gradation is performed by adjusting the amount of dye sublimated by controlling the time for applying a current to the Samar head.

By the way, in the ink sheets used for printing in this way, the type of ink sheet is distinguished according to the purpose of printing. Generally, when color printing is performed, an ink sheet for plain paper is used. As other types of ink sheets, a black and white ink sheet used when printing with two colors of white and black・
There is an OHP ink sheet used for a head projector (hereinafter referred to as OHP). In this way, the ink sheets are usually classified into three types, and at the time of printing, the ink sheet corresponding to the printing purpose is used for printing.

The ink sheet is usually loaded in an ink cassette holder (hereinafter abbreviated as an ink cassette), and the ink cassette is set in a printable state by mounting the ink cassette in a video printer. That is, when the ink sheet is replaced, the ink sheet can be replaced by removing the entire ink cassette from the video printer.

In a video printer adopting such an ink cassette exchange system, it is essential to identify the ink sheet in order to print using the ink sheet according to the printing purpose. Further, since the ink sheet can be printed by loading it in the ink cassette and mounting it in the video printer, it is desirable to be able to identify the ink sheet even after the ink cassette is mounted.

Therefore, a method of identifying an ink sheet used in a conventional video printer will be described with reference to FIGS.

FIG. 5 is a top view of the ink sheet when the identification means for identifying the ink sheet itself is provided, and FIG. 6 is the supply side when the identification means is provided on the supply side bobbin around which the ink sheet is wound. FIG. 7 is a front view of the bobbin, and FIG. 7 is a side view of the ink cassette in which the identifying means is provided in the ink cassette loaded with the ink sheet.

As a conventional ink sheet identification method, at least three types of identification methods are adopted as shown below.

First, as a first method, as shown in FIG. 5, identification is made at a predetermined position of the ink sheet 3 wound around the supply side bobbin 1 based on, for example, light from a sensor (not shown). This is a method of identifying the type of the ink film by providing identification markers 3a and 3b for doing so and reading the difference in the arrangement of the identification markers 3a and 3b with a sensor or the like.

In the figure, the ink sheet 3 for color printing is generally sequentially coated with yellow (Y), magenta (M), and cyan (C) inks. Identification marker 3a in the figure,
3b) and is configured to be conveyed from the supply-side hobbin 1 to the winding bobbin 2. Although not shown in the drawing, a marker for cueing a predetermined color (for example, yellow) is usually provided in the ink non-coating portion in a region between the predetermined color and its front color. That is,
By providing the identification markers 3a and 3b for identifying the ink sheet by using the marker arrangement area,
It is possible to identify the ink sheet together with the head of the ink sheet. That is, the identification markers 3a and 3b are formed by applying one of the markers with a color that blocks light from a sensor (not shown). For example, if the identification marker 3a is coated in black that blocks light as shown in FIG. 5, one identification marker 3b is formed of white paint that transmits the light from the sensor. That is, the sensor (not shown) is arranged in the vertical direction of the ink sheet 3 to be conveyed,
The difference in light based on the identification markers 3a and 3b is obtained, and as a result, the ink sheet 3 is identified.

In the identification method of this example, for example, FIG.
In the case of an ink sheet for plain paper used when performing standard color printing as shown in FIG. 3, the identification marker 3a is arranged above the marker area and one identification marker 3b is arranged below. . Further, as shown in FIG. 5B, an OHP used when performing color printing using the OHP.
In the case of the ink sheet for identification, the identification marker 3a is arranged on the upper part of the marker area, and one identification marker 3b is provided.
Is placed at the bottom. Further, as shown in FIG. 5C, in the case of a black and white ink sheet used when performing black and white printing, the identification markers 3a are arranged above and below the marker area. That is, the sensor makes it possible to identify the ink sheet by detecting the difference in the arrangement area of the identification marker.

Next, as a second method, for example, FIG.
When a cylindrical member 4 on which a predetermined black-and-white pattern (4a, 4b) is printed is attached to at least one rotation shaft 1a of the supply side bobbin 1 as shown in FIG. Is a method of identifying the type of ink sheet from the difference in pulse waveforms obtained by a sensor (not shown).

In this identification method, for example, as shown in FIGS. 6A and 6B, different black and white patterns 4 are formed on the outer peripheral surface of the cylindrical member 4 depending on the type of ink sheet.
a and 4b are printed. At this time, for example, the print width of the black pattern is formed according to the type of ink sheet. That is, in the case of the ink sheet for plain paper shown in FIG. 6A, the print width of the black pattern is formed to be reduced, while in the case of the ink sheet for OHP shown in FIG. Widen to form. Although not shown, a sensor having a function of applying light to the rotating black and white patterns 4a and 4b and comparing a pulse waveform obtained from the amount of reflected light and the elapsed time is used. That is, by arranging the sensor in the vicinity of the cylindrical member 4 of the supply side bobbin 1 and operating it,
A pulse waveform based on the black-and-white pattern of the rotating cylindrical member 4 can be obtained. In this way, the ink sheet can be identified from the difference in pulse waveform.

As a third method, for example, FIG.
An ink cassette is prepared for each type of ink sheet to be loaded as shown in, and due to the difference in the shape of the ink cassette,
This is a method for identifying the type of ink sheet.

In this identification method, for example, as shown in FIG. 7A, an identification hole 5a is provided on the side surface of the ink cassette 5 in which the ink sheet 3 is loaded. That is, the loaded ink sheet 3 can be identified by the difference in the arrangement position of the identification hole 5a. For example, in the case of the plain paper ink sheet shown in FIG. 7A, the identification hole 5a is provided below a part of the region on the side surface. FIG.
In the case of the black-and-white ink sheet shown in (b), the identification hole 5a is provided on the upper side of a partial area on the side surface. Further, in the case of the OHP ink sheet shown in FIG. 7C, the ink cassette is formed without providing the identification hole 5a. As a result, it is possible to identify the ink sheet loaded before the video printer is attached from the shape of the ink cassette 5.

However, as described with reference to FIG. 5, a method of identifying with the identification markers 3a and 3b on the ink sheet 3 and a black and white pattern 4a on the rotary shaft 1a of the supply side bobbin 1 as described with reference to FIG. With the method of identifying using the printed cylindrical member 4, in order to reliably identify the ink sheet, the supply side bobbin 1 must be rotated once to convey the ink sheet 3. The ink sheet cannot be identified simply by loading it in the printer. In particular, in the former (see FIG. 5) identification method, it may be possible to waste one ink sheet for one print depending on the marker position for identifying the ink sheet when the ink cassette is mounted. Considering the amount used, it is not effective. Further, in the identification method for identifying from the shape of the ink cassette shown in FIG.
An ink cassette must be prepared for each type of ink sheet. In other words, since the number of molds used in the ink cassette manufacturing process (press manufacturing process) is the same as the number of types of ink sheets, the number of manufacturing processes increases, resulting in higher costs.

[0018]

As described above, in the conventional ink sheet identifying method, the ink sheet can be identified by conveying and rotating the ink sheet or the supply side bobbin. Therefore, there is a problem that the type of ink sheet cannot be identified only by mounting the ink cassette loaded with the ink sheet on the video printer. Further, in the method of identifying the ink sheet by the shape of the ink cassette, there is a problem that the ink cassette must be prepared for each type of ink sheet, resulting in an increase in cost.

Therefore, the present invention has been made in view of the above-mentioned problems, and it is possible to configure one type of ink cassette without preparing an ink cassette for each type of ink sheet and rotate the supply side bobbin. An object of the present invention is to provide an ink sheet identification device that can identify the type of ink sheet simply by mounting the ink cassette on the video printer.

[0020]

An ink sheet identification apparatus according to the present invention comprises disc-shaped brim portions mounted on both sides of a rotary shaft around which an ink sheet coated with a plurality of colors or black and white inks is wound. A supply-side bobbin configured to convey the ink sheet in a predetermined direction and attached to a side surface of either one of the supply-side bobbins, and emits light to identify the type of the ink sheet. Outside the striped identification pattern having a region coated with a color that reflects the light emitted from the sensor and a region coated with a color that does not reflect the light emitted from the sensor that performs discrimination based on the presence or absence of reflected light And a disc-shaped identification member provided on the side surface or the outer peripheral surface.

In the present invention, the supply-side bobbin is constructed by disc-shaped brim portions axially attached to both sides of a rotary shaft around which an ink sheet coated with a plurality of colors or black and white inks is wound.
The ink sheet is conveyed in a predetermined direction. The disc-shaped identification member is attached to the side surface of one of the flanges of the supply side bobbin, emits light for identifying the type of the ink sheet, and performs identification based on the presence or absence of reflected light. A striped identification pattern having a region coated with a color that reflects the light emitted from the sensor and a region coated with a color that does not reflect the light emitted from the sensor is provided on the outer side surface or the outer peripheral surface. For example, when the supply side bobbin to which the identification member is attached is housed in the ink cassette and loaded in the video printer device, light is emitted toward the identification pattern by the sensor, and then there is no reflected light. A combination of color arrangements in the identification pattern is obtained according to As a result, the type of ink sheet can be identified without rotating the supply side bobbin.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 3 show an embodiment of an ink sheet identification device according to the present invention. FIG. 1 is a side view of the ink sheet identification device corresponding to each ink sheet type, and FIG.
FIG. 3 is a front view of the ink sheet identification device, and FIG. 3 is a specific circuit configuration diagram of a reflective sensor used in this embodiment.

As shown in FIG. 1, the ink sheet identifying apparatus 10 of the present invention has, for example, a collar portion 11b on one side of a supply side bobbin 11 around which an unused ink sheet 12 is wound.
In addition, the identification member 13 is axially attached. Identification patterns 13a and 13b are provided on the side surface of the identification member 13. These identification patterns 13a and 13b
Is for identifying the ink sheet by using the reflective sensor 14 shown in the figure. The reflective sensor 14 emits light toward the identification patterns 13a and 13b, respectively,
The difference in the arrangement position of the identification patterns 13a and 13b is detected based on whether the emitted light is reflected or not, and the type of ink sheet is identified from the detection result. Reflective sensor 1
As shown in the figure, 4 is positioned at a predetermined position with respect to the identifying member 13 by a mounting member 15 and is fixed in a video printer (not shown).

More specifically, the supply side bobbin 1 will be described.
1 is a rotary shaft 11a and a rotary shaft 1 as shown in FIG.
It is composed of a disc-shaped flange portion 11b axially attached to both sides of 1a. The collar portion 11b is formed in a disk shape and has a role of guiding the ink sheet 12 when the ink sheet 12 is wound around the rotary shaft 11a, and the supply side bobbin 11 is attached when the ink cassette is mounted. It also has a role of locking in the ink cassette. Therefore, in the present embodiment example, one of the brim portions 11 of the supply side bobbin 11 is used.
The identification member 13 formed in the same shape (disk shape) as the collar portion 11b is fitted on the outer side surface of b. That is, the identification member 13 is fixed to the side surface of the collar portion 11b after the rotation shaft 11a of the supply side bobbin 11 is inserted into the insertion hole formed for inserting the rotation shaft 11a.

On the surface of the identification member 13, identification patterns 13a and 13b for identifying the type of ink sheet by the reflection type sensor 14 are provided. As the identification pattern 13a, for example, a ring-shaped pattern (striped pattern) coated with black is formed.
a is provided in one of the regions obtained by dividing the entire circumferential direction excluding the rotating shaft 11a into two, for example. The identification pattern 13a has an optical system characteristic of not reflecting light when irradiated with light from the reflection sensor 14 shown in FIG.

The other identification pattern 13b is, for example, a white ring-shaped pattern,
It is provided in the other area obtained by dividing the side surface of the identification member 13 into two. The identification pattern 13b has an optical system characteristic of reflecting light in the opposite manner to the identification pattern 13a when irradiated with the light from the reflection sensor 14 shown in FIG.

That is, the combination of the identification patterns 13a and 13b arranged on the side surface of the identification member 13 makes it possible to identify 12 types of ink sheets.

For example, in the case of the ink sheet for plain paper shown in FIG. 1A, an identification pattern having a black stripe pattern in the outer region divided into two, for example, in the entire region on the side surface of the identification member 13. 13a is arranged. At the same time, the white identification pattern 13b is arranged in the inner area. FIG.
In the case of the black-and-white ink sheet shown in (b), the white identification pattern 13b is arranged in, for example, an outer region divided into two parts in the entire region of the side surface of the identification member 13. At the same time, in the inner area, the identification pattern 13a becomes a black striped pattern.
Place. In the case of the OHP ink sheet shown in FIG. 1B, the white identification pattern 13b is arranged on the entire side surface of the identification member 13. In this way, the identification patterns 13a and 13b are selected according to the type of ink sheet.
To be combined.

On the other hand, the reflection type sensor 1 used in the present invention.
4 will be described in more detail, the reflective sensor 14 is composed of at least two reflective sensors A and B. For example, a reflection type photo interrupter is used for these reflection type sensors, and the identification patterns 13a and 13b are respectively irradiated with light and the reflected light is received. That is, the difference in the arrangement position of the identification patterns 13a and 13b is detected by detecting the presence or absence of the reflected light. Further, the reflective sensors A and B are arranged in parallel on a mounting member 15 fixed inside a video printer (not shown) so as to be at predetermined positions corresponding to the identification patterns 13a and 13b.

A concrete circuit configuration of such a reflection type sensor 14 is shown in FIG.

As shown in FIG. 3, each of the sensors A and B constituting the reflection type sensor 14 has a light emitting diode Di which emits light toward an identification pattern. The light emitted from these light emitting diodes Di is the identification member 1
The light is reflected by the optical system characteristics of the identification patterns 13a and 13b provided in No. 3, and is received by the phototransistor Tr which receives the reflected light. When the phototransistor Tr receives the reflected light, the phototransistor Tr is turned on. Therefore, a current flows from the applied constant voltage B through the load resistor R2 and the phototransistor Tr.
The voltage between the emitter and the collector, that is, the output voltage Vout becomes the "L" level. Further, when the light emitted from the light emitting diode D1 cannot be received without being reflected, the phototransistor Tr is turned off, so that no current flows from the constant voltage B between the emitter and collector of the phototransistor Tr. , The output voltage Vout becomes "H" level. As described above, the sensors A and B have the light emitting diode Di.
By using a circuit group such as the phototransistor Tr and the like, it is possible to obtain output signals of "L" level or "H" level, respectively. By supplying these output signals to, for example, the control unit provided in the video printer, the identification of the ink sheet based on the combination result of the output signals can be displayed on the display unit (not shown). Has become.

Next, the operation of the ink sheet identifying apparatus shown in FIG. 1 will be described in detail.

Now, the supply side bobbin 11 on which the ink sheet 12 is wound and the identification member 13 is mounted, and the take-up side bobbin (not shown) are housed in an ink cassette (not shown), and a video printer is provided. Shall be loaded inside. At this time, assuming that the power of the entire video printer is turned on, the reflection type sensor 14 provided in the printer has the corresponding identification pattern 13 provided on the identification member 13.
Light is emitted toward a and 13b. At this time, for example,
If the wound ink sheet 12 is for plain paper, and the identification pattern is arranged at a position corresponding to that for plain paper as shown in FIG.
Emits light to the identification pattern 13b, and the other sensor B emits light to the identification pattern 13a. At this time, since the identification pattern 13b is a white-coated pattern having an optical system characteristic of reflecting light, the light emitted from the sensor A (light emitting diode Di) is reflected and received by the phototransistor Tr of the sensor A. It That is, the sensor A outputs an "L" level signal. At the same time, the sensor B emits light to the identification pattern 13a. At this time, since the identification pattern 13b is a black-coated pattern having an optical system characteristic that does not reflect light, the light emitted from the sensor A is not reflected and is not received by the phototransistor Tr of the sensor B. That is, sensor B
Outputs an "H" level signal.

In addition, as shown in FIG. 1B, when the wound ink sheet 12 is for black and white and the identification pattern is arranged at a position (pattern) opposite to that for plain paper described above. , The opposite operation is performed. That is, FIG.
As shown in (b), the sensor A emits light to the identification pattern 13a, and at the same time, the sensor B emits light to the identification pattern 13b. As a result, the sensor A outputs an "H" level signal, and at the same time, the sensor B outputs an "L" level signal.

Further, as shown in FIG. 1C, the wound ink sheet 12 is for OHP and is coated with a white color having an optical system characteristic that does not reflect light.
When b is arranged on the entire side surface region of the identification member 13, both the sensor A and the sensor B have the identification pattern 13
emits light to b. As a result, both the sensor A and the sensor B output an "L" level signal.

By thus rearranging the arrangement of the identification patterns 13a and 13b depending on the type of the ink sheet, the two sensors A and B in the reflective sensor 14 can obtain a constant output signal based on the combination of the identification patterns. it can. Table 1 shows an example of the output results for each type of ink sheet from the sensors A and B.

[0038]

[Table 1] Therefore, as shown in Table 1, the type of the ink sheet can be specified from the combination of the output signals of the reflection type sensor 14, and thus the type of the ink sheet can be identified. A combination of the output signals of the reflective sensor 14 corresponding to each type of ink sheet shown in Table 1 is stored in advance in the control unit in the video printer, and the control unit discriminates based on the output signal from the reflective sensor 14. If the control unit is configured to perform the determination process and the control unit displays the identification determination process result on the display unit or the like, the type of the loaded ink sheet can be recognized at a glance. Further, in this case, the ink sheet can be identified immediately after the ink cassette is loaded in the video printer.

Further, the ink sheet identification device 1 shown in FIG.
0 and the ink cassette (not shown) in which the winding side bobbin (not shown) is loaded are at least a part of the side surface of the identification member 13 in the supply side bobbin 11 in order to obtain the effects of this embodiment. The area may be exposed. For example, the respective light from the reflection type sensor 14 is recognized by the identification patterns 13a, 1 on the corresponding side surface of the ink cassette.
A hole is provided so as to irradiate 3b. As a result, the ink cassette in which the ink sheet identifying apparatus 10 of the present embodiment is loaded can also identify the type of ink sheet with only one type of ink cassette without manufacturing according to each type of ink sheet. .

Therefore, according to the present embodiment, the ink cassette is loaded into the video printer without rotating the supply side bobbin 11 around which the ink sheet is wound and without transporting the ink sheet. The effect that the type of the loaded ink sheet can be identified is obtained. Further, it is only necessary to prepare one type of ink cassette without providing an ink cassette for loading an ink sheet or the like for each type of ink sheet, and in this case as well, the type of ink sheet can be similarly identified. Also get.

FIG. 4 is a block diagram showing another embodiment of the ink sheet identifying apparatus according to the present invention. In the apparatus shown in FIG. 4, the same components as those shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. Only different portions will be described.

In the present embodiment, the identification member 13 is fitted and attached to the side surface of the collar portion 11b on one side of the supply side bobbin 11 as in the case of the above-described embodiment, and the outer peripheral surface of the identification member and the collar portion are attached. Identification pattern 1 on the outer peripheral surface of 11b
3a and 13b are provided in a predetermined combination, respectively,
The difference is that the reflection type sensor 14 is provided inside the video printer so as to emit light toward the identification patterns 13a and 13b.

As shown in FIGS. 4 (a) to 4 (c), in the ink sheet identifying apparatus 10, the identifying member 13 is attached to the side surface of one of the flange portions 11b forming the supply side bobbin 11. It is configured. In this case, the identification patterns 13a and 13b described in the above embodiment are not arranged on the side surface of the identification member 13. However, in the present embodiment, in order to identify the ink sheet 12 without the supply side bobbin 11 rotating, the identification pattern 13a is provided over the entire outer peripheral surface of the identification member 13 and the collar portion 11b. , 13b are provided. That is, the combination of the identification member 13 and the identification patterns 13a and 13b provided on the collar portion 11b allows the reflective sensor 1 to be combined.
4 is used to identify the type of ink sheet 1.

Further, the reflection type sensor 14 is mounted inside the video printer (not shown) by a mounting member 15 so as to emit light to a part of the outer peripheral surface of the identification member 13 and the collar portion 11b corresponding to the two sensors A and B. No)) is attached.

In this embodiment, for example, in the case of an ink sheet for plain paper as shown in FIG. 4A, a white identification pattern 13b is arranged on the entire outer peripheral surface area of the identification member 13, and An identification pattern 13a having a black striped pattern is arranged on the entire outer peripheral surface area of the collar portion 11b to which the identification member 13 is attached.

In the case of the black-and-white ink sheet shown in FIG. 4B, the identification pattern 13a having a black stripe pattern is arranged on the entire outer peripheral surface of the identification member 13 and the outer periphery of the collar portion 11b. White identification pattern 13b over the entire surface area
Place.

In the case of the OHP ink sheet shown in FIG. 4C, a white identification pattern 13b is arranged on the entire outer peripheral surface area of each of the identification member 13 and the collar portion 11b. In this way, the identification patterns 13a and 13b are combined according to the type of ink sheet.

In the ink cassette containing the supply side bobbin 11 and the take-up side bobbin (not shown), a part of the outer peripheral surface of the identification member 13 and the collar portion 11b is exposed. Forming the side surface of the ink cassette corresponding to. As a result, it is possible to identify the ink sheet by the reflective sensor 14 and to identify the type of the ink sheet only by manufacturing one type of ink cassette without providing an ink cassette for each ink sheet type. Is able to. With such a configuration, the output signal of the reflective sensor 14 based on the type of ink sheet can be obtained by operating the reflective sensor 14 as in the above-described embodiment.
That is, the ink sheet 1 housed in the ink cassette
2 is for plain paper as shown in FIG. 4 (a),
The sensor A emits light to the identification pattern 13b, and at the same time, the other sensor B emits light to the identification pattern 13a. As a result, the sensor A outputs an "L" level signal, and at the same time, the sensor B outputs an "H" level signal.

When the wound ink sheet 12 is for black and white as shown in FIG. 4B, the sensor A emits light to the identification pattern 13a, and at the same time, the other sensor B is Light is emitted to the identification pattern 13b. As a result, the sensor A outputs an "H" level signal, and at the same time, the sensor B outputs an "L" level signal.

When the wound ink sheet 12 is for OHP as shown in FIG. 4C, both the sensor A and the sensor B emit light to the identification pattern 13b. As a result, both the sensor A and the sensor B output an "L" level signal.

Therefore, also in this embodiment, an output signal corresponding to each ink sheet type in the reflection type sensor 14 shown in Table 1 can be obtained as in the case of the above embodiment. With this, the type of the ink sheet can be specified from the combination of the output signals of the reflective sensor 14, and thus the type of the ink sheet can be identified.

Therefore, according to the present embodiment, the same effect as that of the above-mentioned embodiment can be obtained, and the area where the identification patterns 13a and 13b are provided is the identification member 1.
3 and the outer peripheral surface of the flange portion 11b, there is an effect that the manufacturing process can be facilitated without complicated positioning.

In the embodiment of the present invention,
The identification member 13 or the collar portion 11b provided with the striped identification patterns 13a and 13b is the supply side bobbin 1.
However, in the case of the ink cassette system in which the winding-side bobbin and the supply-side bobbin are integrally formed, for example, the identification member 13 is provided on the collar portion on the winding-side bobbin side. The reflective sensor 14 may be mounted and provided at a corresponding position.

[0054]

As described above, according to the present invention, the identification pattern having a striped pattern is provided on the side surface or the outer peripheral surface of the identification member and the outer peripheral surface of the collar portion, so that the identification pattern can be loaded when the ink cassette is loaded. Are fixed to the respective predetermined positions, the type of ink sheet can be identified only by loading the ink cassette into the video printer without rotating the supply bobbin. Further, since it is possible to identify the type of ink sheet simply by attaching the identification member provided with the identification pattern to the supply side bobbin, it is necessary to provide the supply side bobbin and the ink cassette for each type of ink sheet. Instead, only one type of ink cassette needs to be manufactured. Therefore, there is an effect that the cost can be reduced in the manufacturing process.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of an ink sheet identification device according to the present invention.

FIG. 2 is a front view of a supply-side bobbin equipped with the device shown in FIG.

FIG. 3 is a configuration diagram showing an embodiment of an ink sheet identification device according to the present invention.

FIG. 4 is a circuit configuration diagram showing a sensor used in the ink sheet identification apparatus of the present invention.

FIG. 5 is an explanatory diagram showing an example of an identification method by a conventional ink sheet identification device.

FIG. 6 is an explanatory diagram showing an example of an identification method by a conventional ink sheet identification device.

FIG. 7 is an explanatory diagram showing an example of an identification method by a conventional ink sheet identification device.

[Explanation of symbols]

10 ... Ink sheet identification device, 11 ... Supply side bobbin, 1
1a ... Rotary shaft, 11b ... Brim part, 12 ... Ink sheet,
13 ... Identification member, 13a, 13b ... Identification pattern, 1
4 ... Reflective sensor (sensor A, B), 15 ... Mounting member.

Claims (3)

[Claims] 1. A disc-shaped collar portion is attached to both sides of a rotary shaft around which an ink sheet coated with a plurality of colors or black and white inks is wound, and the ink sheet is conveyed in a predetermined direction. And a supply-side bobbin for attaching to the side surface of one of the supply-side bobbins, which emits light for identifying the type of the ink sheet and emits light from a sensor that performs identification based on the presence or absence of reflected light. A disc-shaped identification pattern provided on the outer side surface or the outer peripheral surface with a striped identification pattern having an area coated with a color that reflects the reflected light and an area coated with a color that does not reflect the light emitted from the sensor An ink sheet identification device comprising: a member; 2. The identification member has an identification pattern in which a region coated with a color that reflects light from the sensor and a region coated with a color that does not reflect are arranged in a ring shape having different diameters on the side surface. The ink sheet identification device according to claim 1, wherein the ink sheet identification device is provided. 3. The identification member, when an identification pattern of one of a color that reflects light from the sensor and a color that does not reflect light from the sensor is provided on the outer peripheral surface, The ink sheet identification device according to claim 1, wherein an identification pattern of a color different from the color provided on the identification member is provided on the outer peripheral surface.