KR940006606B1 - Method and apparatus for color copying from a monochromatic document - Google Patents

Abstract

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Description

Color copying method of white paper

1 is a partial cross-sectional view showing the structure of a film and copy paper used in a general color copier.

2 is a side view schematically showing a color copying process of a conventional color copier.

3 is an exemplary process chart illustrating a process of the color copying method of a black and white document of the present invention.

4 is a schematic side view of an apparatus for carrying out the method of the invention.

Figure 5 is a side view of another embodiment of an apparatus for performing the method of the present invention.

Figure 6 is a side view of another embodiment of an apparatus for performing the method of the present invention.

* Explanation of symbols for the main parts of the drawings

10 film 10 'substrate

11: photosensitive layer 12: microcapsules

13: epidermis 14: dye

15: copy paper 15 ': substrate

16: print layer 20: black and white original

21: background 22: sentence pattern

31: first light source 32: first filter

33: lens 34: imaging position

35 second light source 36 second filter

37: irradiation position 38,39: pressurized roll

The present invention relates to a method and apparatus for copying a black and white document in which text or other diagrams are recorded in black on a white background in color.

In more detail, the present invention relates to a color copying method of a black and white document suitable for producing a slide film mainly used in an overhead projector by improving a general color copying method and apparatus.

First, the film 10 and the copy paper 15 used in the general color copier will be described with reference to FIG. 1, and the film 10 has numerous microcapsules l2 attached to the upper surface of the substrate 10 '. The photosensitive layer 11 is formed, and the microcapsules 12 are filled with a dye 14 in the epidermis 13 and the inside thereof, and the dyes 14 are magenta and yellow. , And cyan are filled, respectively.

The copy paper 15 has a print layer 16 formed on an upper surface of the substrate 15 ', and the substrate 15' includes paper or a transparent body (which becomes transparent when the image is later fixed). In the present invention, the transparent body is mainly used.

The film 10 and the copy paper 15 configured as described above are to copy the coated projectile 2 using a conventional copying apparatus schematically shown in FIG. That is, light emitted from the light source 1 to the coating body 2 is reflected and the light reflected from the coating body 2 is transferred through the lens 3 to the image of the coating body 2 described above at the imaging position 4. It forms on the photosensitive layer 11 of the film 10 mentioned above.

The photosensitive layer 11 of the formed film 10 and the print layer 16 of the copy paper 15 are combined together and transferred to the copy paper 15 by a pair of pressure rollers 5 and 6, This is to fix the image by heating in the mounting apparatus 7, and at this time, if the substrate 15 'of the copy paper 15 is used as a transparent body, the fixed color image is reproduced on the transparent body, and this is overhead. The projector can be used as a slide film.

In the conventional color copy paper as described above, the copy having the same color can be copied according to the color of the coated projectile. However, overhead projectors, for example, are not only widely used in holding various seminars, symposiums, and conferences, but also take up a greater proportion of characters and diagrams. When making a slide film using a copier, it is necessary to make a copy after painting a desired color on the original, which causes a problem such as loss of time and hassle. Also, a positive film is used to produce a slide film. In the case of making a slide film by shooting in the same manner as described above it is the same as the one to paint the desired color on the original.

Therefore, an object of the present invention is to create a text and a chart, etc. in black on a white ground (mainly paper), which is a coated carcass based on the desired color, and to reproduce the text and a chart in the desired color here. It is to provide a method of copying in black and white originals in color that can be used in overhead projectors.

Another object of the present invention is to provide a color copying apparatus of a black and white document which can effectively perform the method of the present invention.

In other words, the color copying method of the black-and-white document of the present invention reflects the light emitted from the light source to the coated projectile, and forms an image on the film placed in the image forming position through the lens, matches it with the copying paper, transfers it to the copying paper by pressing, and transfers it to heat. In the color copying method of coloring and fixing an image by using the light source as the first light source and reflecting the light emitted from the black and white manuscript through the first filter to form the image on the film at the above-mentioned image forming position And irradiating the image formed film with light emitted from the second light source through the second filter.

Further, in the preferred embodiment, the above-mentioned irradiation of the second light source may be performed before the imaging step following the first light source.

The first filter selects one of the colors of magenta, yellow and cyan, and the corresponding second filter selects one of the colors of red, green, and blue, and vice versa. One of the colors of green and blue is selected, and the corresponding second filter is selected from one of magenta, yellow and cyan.

Next, the apparatus for carrying out the method of the present invention reflects the light emitted from the light source to the coated projectile, and forms an image through a lens on a film placed at an image forming position. An apparatus for fixing an image by developing heat-transferred copy paper by heat, the apparatus comprising: a first filter for setting the light source as a first light source and outputting the light as a light of a predetermined color in a black and white document; It is composed of a second light source and a second filter provided to irradiate the film with a predetermined color in any one side of the conveying direction of the film.

In a preferred embodiment, a part of the first light source described above is configured to be used as the second light source.

The method and apparatus of the present invention will be described in more detail with reference to the accompanying drawings.

First, in FIG. 1, the inside of the epidermis 13 of the microcapsules 12 attached to the photosensitive layer 11 of the film 10, as described above, has a dye having a magenta, yellow and cyan color. 14) is filled, and the capsule 12 is distinguished according to the color of the dye filled therein, 12M is magenta, 12Y is yellow and 12C is filled with cyan is described below.

In addition, in the capsule 12M filled with the magenta dye, its skin 13 is cured in green light, and in the capsule 12Y filled with yellow dye, the capsule 12M is filled with light. The epidermis 13 is cured, and the capsule 12C filled with cyan dye is configured to be cured in light of red color, and when the epidermis 13 of each of the capsules 12 is cured, The hardened capsule 12 is not destroyed even if it is pressed with the printing layer 16 of the copy paper 15 so that the dye 14 filled therein does not leak, and the uncured capsule 12 Only the dye 14, which is filled inside, leaks out and leaks, and the image formed by reacting with the print layer 16 is transferred, which is fixed as the image is developed by heat, and the image of the coated body 2 is reproduced as color. .

First, the apparatus of the present invention will be described with reference to FIG.

The first light source 31 is installed on one side of the apparatus, and the first filter 32 is installed in front of the device, so that the light emitted from the first light source 31 passes through the first filter 32. Is reflected so that the reflected light is imaged on the print layer 11 of the film 10 described above at the imaging position 34 through the lens 33.

In addition, the second light source 35 is installed on the right side of the above-mentioned FIG. 5 above the image forming position 34 in the conveying direction of the film 10, that is, in front of the second film 36. The second light source 35 passes through the second filter 36 and irradiates light to the photosensitive layer 11 of the film 10 placed at the irradiation position 37. Reference numerals 38 and 39 denote pressurized rolls, and reference numeral 40 denotes a fixing device.

4 is similar to the embodiment of FIG. 4 described above, in which the second light source 35 and the second filter 36 are transferred to the first light source 31 with respect to the first light source 31. In view of this, it is provided at the rear side, and the others are the same as in the embodiment of FIG.

FIG. 6 is similar to the above-described embodiment, and is configured to use a part of the first light source 31 as the second light source, except for the same as the embodiment of FIG.

The method of the present invention uses the apparatus as described above, which will be described below with reference to FIG. Now, in FIG. 3, the black and white manuscript 20 having the text 22 and the text 22 on the white background 21 is black, for example, the background 21 is yellow, and the sentence 22 is red. In order to make a copy on the transparent material, the film 10 described above is transferred to the image forming position 34 as shown in FIG. 4, and the yellow filter 32 is provided in front of the first light source 31. The photosensitive layer 10 of the film 10 at the image forming position 34, through the lens 33, the light emitted from the first light source 31 and reflected from the surface of the black and white document 20 through the lens 33. Phased out).

At this time, the light generated from the first light source 31 becomes yellow light through the yellow filter 32 and is reflected on the white background 21 surface of the document 20 so that the yellow color and the film are reflected. Although an image is formed on the photosensitive layer 10 of (10), when the light having the above-mentioned yellow color is incident on the black sentence pattern 22 of the document 20, the face is black and absorbs the yellow color light. Light is not reflected on the surface corresponding to (22).

Accordingly, in the microcapsules 12 attached to the photosensitive layer 11 of the film 10, light of yellow color is reflected from the base 21 of the document 20, and the light of yellow color is red. And the skin of the magenta capsule 12M and cyan capsule 12C in the microcapsules 12 attached to the photosensitive surface 11 of the film 10 by the reflected light. 13) is hardened, and only the yellow capsule 12Y is in an uncured state.

In addition, since the pattern 22 of the black-and-white manuscript 20 is black, there is no reflected light, and thus the microcapsules 12 attached to the photosensitive layer 11 of the film 10 are completely uncured. To be.

If the film 10 in the above state is moved to the irradiation position 37 of the second light source 35 and the red filter 36 is provided in front of the second light source 35, The light emitted from the second light source 35 becomes red color and is irradiated to the photosensitive layer 11 of the film 10 so that the surface corresponding to the base 21 of the black and white manuscript 20 is The microcapsules 12 do not affect the uncured yellow capsule 12Y so that the yellow capsule 12Y remains uncured as it is, and the capsule 12 of the portion corresponding to the sentence 22 described above. Since all are uncured, the cyan capsule 12C is cured by receiving red light, and only the magenta capsule 12M and the yellow capsule 12Y remain uncured.

When the photosensitive layer 11 of the film 10 formed and exposed as described above and the print layer 16 of the copy paper 15 are combined and pressed by the pressure rolls 38 and 39, the film 10 Yellow capsule 12Y corresponding to the base 2 of the black-and-white document 20 in the photosensitive layer 11 of the 11) is destroyed, and the yellow dye leaks, and the magenta capsule 12M corresponding to the sentence 22 described above. When the yellow capsule 12Y is destroyed and the two dyes are combined to form a red color, the yellow dye is transferred to the print layer 16 of the copy paper 15 based on the yellow dye, and the red color is sentence-shaped, respectively. When the device 40 is colored and fixed by heat, the copy paper 15 becomes transparent and at the same time obtains the same image as the black and white document 20, and the base 21 becomes yellow as desired. , Door 22 is red, which means that the overhead It becomes usable with slide film.

In addition, although the method shown in FIG. 5 is the same as the above-mentioned, the 2nd light source is first irradiated to the printing layer 11 of the film 10, and then the image of the black-and-white document 20 is carried out by the 1st light source 31. FIG. It is a way to image.

More specifically, if the base 21 of the black-and-white manuscript 20 is now magenta and its sentence shape 22 is copied to the copy paper 15 in blue, the front of the second light source 34 is blue. When the second filter 36 is provided and the light is irradiated to the photosensitive layer 11 of the film 10 placed at the irradiation position 27, light of blue color is irradiated. The yellow capsule 12Y is cured in the microcapsules 12 attached to the photosensitive layer 11 of the film 10.

When the film 10 is moved to the image forming position 34 and the magenta color film 32 is installed in front of the first light source 31, the magenta light is reflected on the black and white document 20. And reflected only on the base 21 of the black-and-white manuscript 20, and since the magenta color is a synthetic light of red and blue colors, it corresponds to the base 21 of the photosensitive layer 11 of the film 10 described above. Of the microcapsules 12 of the portion, the yellow capsule 12Y is already cured to cure only the cyan capsule 12C.

Therefore, when the photosensitive layer 11 of the film 10 and the printing layer 16 of the copy paper 15 are joined together, the film 10 is passed through the crimping rolls 38 and 39 as described above. The portion corresponding to the base 21 of the black-and-white manuscript 20 on the photosensitive layer 11 of Fig. 3) remains uncured only in the magenta capsule 12M, which is destroyed and the print layer 16 of the copy paper 15 is destroyed. The magenta dye is transferred, and the magenta capsule 12M and the cyan capsule 12C remain uncured in the site corresponding to the sentence 22, which is destroyed by the above-mentioned pressure, mixed and copied into a blue color. The transfer paper 15 is transferred and fixed by the color of the adhesive device 40, and the copy paper 15 becomes a transparent material and at the same time becomes a magenta color, and the sentence pattern is fixed in blue color so that it is an overhead projector as a slide film. Will be available for.

In addition, FIG. 6 is configured to drain a part of the first light source 31 and use it as the second light source 35, which can be performed in the same manner as described above.

EXAMPLE

In this embodiment, the base 21 of the black-and-white manuscript 20 is made white and the sentence 22 is made black. The color of the first filter 32 of FIG. 31 and the color of the second filter 36 of the second light source 35 may be determined using the method and apparatus of the present invention described above using a filter having the following color. The same result was obtained, and it was confirmed that the color of the background of the copy and the pattern of the sentence were clearly displayed.

As described above, using the method and apparatus of the present invention, if only black and white manuscript 20 is used, the color of the background 21 and the sentence 22 can be reproduced on the copy paper 15 in the respective colors described above. Instead of the film 10 described above, a positive film for a general camera may also be used. In this case, the copy paper 15 is not necessary, and the positive film may be directly used as a slide film.

Therefore, according to the present invention, it is possible to easily make a black and white original into color copy, and when used as a slide film of an overhead projector, it is useful for various seminars, symposiums, and various meetings, There is no need to paint colors on the background or the door, which saves time and makes it easy to make color copies.

Claims (6)

A color copying method using an exposure apparatus that reflects light emitted from a light source to a coating body and forms it through a lens on a photosensitive member placed in an image forming position, wherein the light source is used as the first light source 31, and the light emitted from the first light source 31 is generated. 1, reflecting the black and white document 20 through the filter 32 to form the image on the film 10 at the image forming position 34, and the image light film 10 to the second light source 35 And irradiating the light emitted from the light through the second filter (36) again. The color copying method according to claim 1, wherein the irradiation of the second light source (35) is performed before the image forming step of the first light source (31). The method of claim 1, wherein the first filter 32 selects one or more of the colors of magenta, yellow, and cyan, and the corresponding second filter 36 selects one or more of the colors of red, green, and blue. A color copying method of black and white originals, characterized in that the selection. The method of claim 1, wherein the first filter 32 selects one or more of colors of red, green, and blue, and the corresponding second filter 36 selects one or more of colors of magenta, yellow, and cyan. A color copying method of black and white originals, characterized in that the selection. In the color copying apparatus using this exposure apparatus, the light emitted from the light source is reflected on the coating body and formed on the photosensitive member placed in the image forming position through the lens. The first filter 31 which emits light of a predetermined color to the document 20, and the film 10 described above on either side of the conveying direction of the film 10 with respect to the first light source 31. And a second light source (35) and a second filter (36) installed so as to irradiate with a predetermined color. 6. A color copying apparatus according to claim 5, characterized in that a part of said first light source (31) is used as a second light source (32).