JPS63212929A - Recorder - Google Patents

Abstract

PURPOSE:To form a color image of a high picture quality by forming an original image by a scanning exposure of once, onto an image sheet coated with a microcapsule which is enclosed a coloring precursor and a photosensitive substance, and thereafter, executing the development. CONSTITUTION:An image sheet G coated with a microcapsule which is enclosed a coloring precursor and a sensitive substance for making the coloring precursor immobile by responding to the light of specific wavelength is carried by a supply reel 6 and a take-up reel 7. Also, an original 5 is brought to a scanning exposure by a scanning unit 11, and an original image is formed on the image sheet G. Thereafter, by a developing device 10, the image sheet G, and a developing sheet J coated with a developer are superposed. At such a time, a microcapsule of the image sheet G is hardened in accordance with the degree of exposure of the original image, an unhardened microcapsule is broken down by a roller 10a, and the coloring precursor therein and a developer are allowed to come into contact with each other, heated by a heat roller 9 and brought to a coloring reaction. Accordingly, since color copying is executed by a scanning exposure of once, a color shift is eliminated and copying can be executed with high picture quality.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention provides a color recording device coated with microcapsules containing a color former and a sensitive substance that immobilizes the color former by reacting with light of a specific wavelength. The present invention relates to a color recording device that uses a prepared sheet as an image forming sheet.

[Summary of the invention]

In the present invention, scanning light from a color original is exposed to an image sheet coated with microcapsules encapsulating color precursors of one color and a sensitive substance that immobilizes the color precursors in response to light of a specific wavelength. This paper proposes a new color recording device that generates color by destroying microcapsules and performs color copying.

[Conventional technology]

2. Description of the Related Art Conventionally, devices using an electrophotographic method are well known as devices for copying documents in color. This method uses a plurality of types of toners of different colors and performs color copying by repeating the electrophotographic process a number of times corresponding to the number of toner colors and layering the toners on paper.

[Problem that the invention seeks to solve]

However, in conventional methods, the electrophotographic process is repeated multiple times for each color.

There is a problem that color shift easily occurs and it is difficult to obtain a stable and good copy image. Furthermore, since the mechanism is complicated, the device becomes large and expensive, and other problems arise.

[Means for solving problems]

The present invention was made in order to solve the conventional problems and provide a highly reliable color recording device with a simple structure. An image sheet coated with microcapsules containing a sensitive substance that immobilizes substances, a means for conveying the image sheet, a document table on which a copy document is placed, a light source to illuminate the copy document, and an image of the document. The microcapsule is composed of an imaging lens for forming an image on an image sheet, a scanning means for moving the light source and the imaging lens along the document, and a means for destroying the microcapsules.

[Effect]

FIG. 2(a) is a schematic diagram showing the structure of two image sheets used in the present invention, and group numbers A + and A z in FIG. 1.

A3. are microcapsules that produce yellow, magenta, and cyan, respectively, and color precursors M a +, a z, and a f that produce yellow, magenta, and cyan, respectively.
f+ and a different wavelength λ1 for each color precursor. λ2.
A sensitive substance (I) that changes clay etc. in response to light of λ3° and immobilizes a coloring precursor is surrounded by a thin film C of gelatin or the like and encapsulated in a microcapsule. An image sheet G is constructed by uniformly coating the surface of a sheet B, which serves as a carrier.

The same figure (b) shows a developing sheet J used in conjunction with the above-mentioned image sheet G, and one surface of which is coated with a coloring precursor al+"l.
It is constructed by coating the surface under the sheet serving as a carrier with developer E, which develops color by reacting with ! When exposed to light with a wavelength to which b3. is sensitive, the capsule Δ.

A 'x, A sensitive substance in A L, , b, , b3. The clay changes. The image sheet sensitized in this way is integrated with a developing sheet and pressure is applied to form microcapsules A1.
When ゜A z, A s are destroyed, a difference occurs in the amount of luminescent precursor flowing out from the photosensitized capsule and the non-nausea capsule, and the developing sheet J has the exposure wavelength λ1゜λ2.
．． λ1. A color pattern that matches the pattern at the time of exposure appears.

(Refer to Japanese Patent Application Laid-Open No. 58-88739). Here, capsule A exhibits yellow, magenta, and cyan colors.

A2. A:1. The sensitive wavelength λ13λ2. λ2. Let be the wavelengths of blue, green, and red light, respectively. (See FIG. 3) In this way, for example, when the image sheet G is exposed to light that scans the blue portion of the document.

Capsule A with a sensitive material Mb+ that is sensitive to blue light
1. Only capsules 8z, A3. does not harden. Therefore, when the capsule is subsequently destroyed, a blue color develops due to the combination of the coloring precursors aZ (magenta), a, and cyan that flowed out from the capsules Ax, Az, and AZ. The same applies to other colors.

In this way, a color copy image can be obtained by illuminating the original with a light source and scanning the entire surface of the original while forming an image on an image sheet with an imaging lens.

〔Example〕

An embodiment of the present invention will be described below based on the drawings. 1st
The figure is a sectional view showing an embodiment of the recording apparatus of the present invention. A document table 1 is made of a transparent material such as glass or plastic, and a document 5 is placed on the document table l. At the bottom of the document table 1 are a light source 3 and a condensing mirror 4. A scanning unit 11 consisting of an imaging lens 2 is provided.

The light source 3 is rod-shaped and has a length longer than the axis of the document 5. A condenser mirror 4 condenses the light from the light source 3 onto the surface of the document.

The imaging lens 2 is a gradient index Rondo lens array having a length longer than the axis of the original 5, and forms an image of the original 5 on the image sort G as an erect image. Further, the scanning unit 1 is moved parallel to the document table 1 while maintaining a distance from the document table 1 by a drive mechanism (not shown), and scans the document 5. Further, at this time, light from sources other than the imaging lens 2 is blocked so that it does not reach one image sheet G. Reference numeral 6 denotes an image sheet supply reel, and the image sheet G that has come out of the two-image sheet supply reel 6 is stretched parallel to the document table l between a guide roller 11 and one roller tob of the developing device lO. In addition, G is an image sheet that has exited the developing device 10! It is wound onto a take-off reel 7. on the other hand.

The developer sheet J is supplied from the developer sheet supply reel 8,
It passes through the developing device 10 and the heat roller 9. The developing device 10 is located between two rollers.

The surface of the image sheet G coated with microcapsules and the surface of the developing sheet J coated with developer E are pressed together.

Next, the copying operation will be explained. First, the scanning unit 11 moves at a constant speed from one end of the document table L to the other end, and scans the document 5.
The image is formed on the image sheet G by - times of scanning and exposed. A latent image consisting of cured capsules and uncured capsules is formed on the exposed image sheet G. The exposed image sheet G is sent to the developing device 10, where it is pressurized together with the developing sheet J. At this time, the sensitive substance enclosed in each microcapsule A + , A z, A s, on the image sheet G Capsule A, , b, , b, is cured in accordance with the exposure amount, so that the capsule A is cured in accordance with the exposure amount.
++ Coloring precursor al+ flowing out from within A-poor+As+
a2. The amount of a2+ is different. As a result, the developing device 10
From the portion of the image sheet G that has been rolled down in step , an amount of the coloring precursor aI+a2*a3* oozes out into the image sheet J in an amount corresponding to the exposure amount. The developing sheet J coming out of the developing device 10 is heated by the heat roller 9, and the coloring precursors a1. The reaction between a2+ "3+ and developer E progresses rapidly, developing a color corresponding to the color of the original, resulting in a ?5J image.

In this embodiment, an example in which two types of sheets, one image sheet and a developing sheet are used, has been described, but the same effect can be obtained even if the same sheet is coated with both microcapsules and a developer.

〔Effect of the invention〕

According to the present invention, it is possible to perform color copying by one scanning exposure, so that a high-quality color copy image without one color shift can be obtained. Also.

Since the structure is simple, a small and highly reliable device can be realized.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the recording apparatus of the present invention, and FIG.
B) is a sectional view of the image sheet and the developing sheet, and FIG. 3 is an explanatory diagram showing the sensitive wavelength of the image sheet. L...Original table 2...Imaging lens 3...Light source LO...Developing device G...Image sheet J...Developing sheet: G Applicant: Seiko Electronic Industries Co., Ltd. No. 10

Claims (1)

[Claims] An image sheet coated with microcapsules enclosing color precursors of different colors and a sensitive substance that immobilizes the color precursors in response to light of a specific wavelength, a means for conveying the image sheet, and a document on which a copy document is placed. a stage, a light source for illuminating the copy original, an imaging lens for forming an image of the original onto the image sheet, a scanning means for moving the light source and the imaging lens along the original, and destroying the microcapsules of the image sheet. A recording device consisting of means.