JPS61281764A - Recording device - Google Patents

Abstract

PURPOSE:To reduce the cost by using an ultraviolet ray sensitive body having selective spectral sensitivity as a photosensitive body, opposing an ultraviolet ray emission type CRT thereto to expose, and forming an image on the photosensitive body. CONSTITUTION:On an emission surface of a CRT1, an ultraviolet ray emission type fluorescent material is applied, the emitted ultraviolet rays thereon are converged to form an image on an ultraviolet ray sensitive body 3 having a selective spectral sensitivity by a lens 2 to expose. On a neck section of the CRT1, an electron gun 6 is arranged and electronic beams radiated from the electron gun 6 are converged on a focusing coil 7 to collide against a fluorescent surface 9 and excite the ultraviolet ray fluorescent body and emit light. Since the ultraviolet ray fluorescent material is very small, the electronic beams are scanned by a deflecting coil 8, thereby an image having a high resolution can be formed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device, and more particularly to a recording device that uses a CRT to expose a photoreceptor to perform recording.

[Conventional technology]

Non-impact recording devices have recently attracted attention because they generate little noise during recording. Among them, the CRTR printer, which is the simplest to use with hard copy ink and can easily handle color printing, is an extremely powerful recording device, and has been commercialized using various methods.
It is still being put into practical use.

The conventional pre-recording device is comprised of a CRT section that serves as a light source and a camera section that holds a recording medium and photographs the light emitting surface of the CRT. Silver salt photographic materials are used as recording media, and they exhibit excellent gradation reproducibility. For color hard copies, instant color films are also used, which have a simplified manufacturing process.

Means for Solving Problem C] The present invention is a recording device that uses an ultraviolet photoreceptor having selective spectral sensitivity as a photoreceptor, exposes the photoreceptor to an ultraviolet emitting type CRT facing it, and forms an image on the photoreceptor. It has features such as low cost, low cost, speed, simple configuration, quietness, and maintenance-free operation.

That is, when the ultraviolet photoreceptor is made into ultraviolet light-sensitive paper, for example, the cost is lower than that of silver salt photographic film. The ultraviolet-sensitive paper is published in Japanese Patent Application Laid-Open No. 58-88739. Japanese Patent Publication No. 59-30537
It has a configuration such as that seen in UI9P3219446 and has a spectral sensitivity to ultraviolet rays, and is made of an organic material and does not contain expensive metals such as silver, so it can be supplied at low cost. Furthermore, in the development and fixing process of photographs, chemical treatment is required not only for silver salt photographic films but also for instant films, whereas UV-sensitive paper requires pressure application,
Since the developing and fixing process is performed using means such as heating, image formation can be performed easily and at low cost.

〔Example〕

Hereinafter, the present invention will be described in detail according to Examples.

FIG. 1 shows an outline 511 of the apparatus of the present invention.

That is, the surface of the CRT 1' is coated with an ultraviolet light-emitting type phosphor, and the ultraviolet light emitted there is passed through the lens 2.
As a result, an image is formed on the ultraviolet photoreceptor 3 having selective spectral sensitivity and exposed.

Figure 2 is a simple configuration diagram of a CRT.

An electron gun 6 is placed in the neck of the CRTl.
Mc emitted from electron gun 6! The child beam is focused by a focusing coil 7 and hits a fluorescent surface 9, which excites the ultraviolet fluorescent material and causes it to emit light. Since the ultraviolet phosphor is very small, a high-resolution image can be formed by passing an electron beam through it using the deflection coil 8. : The effects of the present invention can be more clearly understood from the Examples detailed below.

In the subsequent implementation u1, UV-sensitive paper and □
We will show an embodiment in which the color-compatible UV-sensitive paper proposed in JP-A No. 59-30537 is used; however, when using other UV-sensitive papers, some changes may be required to the developing system. No need to make any changes.

However, the exposure system can be used as is.

Embodiment 1 Figures 3(c) and 3(b) show an embodiment of the recording apparatus of the present invention. The three single-wavelength beams of the 7CRT IQ are coated with phosphors that each emit ultraviolet light in a different wavelength range on the light-emitting surface.

A portion of the image is displayed on the CRT 10 in the form of a band.
□The light image emitted from this CRT IQ is mirror 1
1. The image is superimposed on the same optical system using a lens 12 and the like, and an image is formed on ultraviolet-sensitive paper 13 and exposed. UV-sensitive paper 1
3 is coated with microcapsules made of an ultraviolet curing resin having spectral sensitivities for each of the three wavelengths. Enclosed in the microcapsules is a colorless leuco dye that produces cyan, magenta, and yellow KR colors when it comes in contact with a color developer K. Toru et al.'s microcapsules encapsulating a leuco dye are manufactured by Ushio 11.The microcapsules encapsulating a leuco dye that develops a yellow color are made of an ultraviolet curing resin that is irreversibly cured by irradiation with ultraviolet light having a wavelength of λY.

Similarly, the microcapsules that develop magenta and cyan colors are composed of ultraviolet curing resins that are cured by λM and λC ultraviolet rays, respectively.

The ultraviolet light-sensitive paper 13, which has been exposed to light to selectively harden the capsules, comes into contact with the developer paper 14 coated with a color developer, and is conveyed while being pressed by a pressure roller 15. Due to the above-mentioned characteristics of the microcapsules, the unexposed microcapsules are destroyed by the pressure of the pressure roller 15, and the colorless leuco dye flows out from inside, which reacts with the color developer applied to the surface of the color developer paper 14 opposite to it and becomes visible. An image is formed on the developer paper.

For example, in the case of forming a red visible image, microcapsules made of an ultraviolet curing resin filled with a colorless leuco dye that develops cyan when exposed to a color developer are exposed and cured. Then, the unexposed capsules are destroyed when the ultraviolet-sensitive paper 13 comes into contact with the developer paper 14 and is conveyed while being pressed by the pressure roller 15, and the colorless leuco dye that flows out comes into contact with the developer on the developer paper, producing magenta and yellow. Develop color. That is, a red visible image can be formed on the developer paper.

One of the features of this device is: - Three-color image created by running motion: 1
One advantage is that lines can be exposed onto photosensitive paper.

Example 2 FIG. 4 shows another embodiment.

A three-wavelength emitting line CRT 15, in which one CRT is coated with a strip of phosphor that emits ultraviolet light in three different wavelength ranges, was used as an optical writing device 11.

The process of exposure and visible formation is the same as in Example 1.

One of the features of this device is that it can be constructed simply by using a single line CRT having light emitting stripes of three colors.

Example 3 ■The example in Figure 5 is yet another example u1, and Example J
As an optical writing device, three single wavelength light emitting lines CR are used.
This is an example in which three single-wavelength light-emitting flat CRTs 17 are used, whereas T10 is used. The process of exposure and visible image formation is the same as in Example 1 above.

One of the disadvantages of this device is the following.

In Example 1.2, a part of the image is CR due to straight line growth.
Since the image is displayed on T, the printer requires sub-scanning to move the photosensitive paper, but the apparatus in this third embodiment does not require sub-scanning because the image is exposed on the surface. Therefore, the configuration can be simplified. It also has the advantage that high-quality images can be obtained.

Embodiment 4 The embodiment shown in FIG. 6 is another embodiment, in which instead of using a 3-wavelength emitting line CRT 15, a 3-wavelength emitting line CRT 15 is used.
This is an example in which RT 18 is used as an optical writing device. The process of exposure and visible image formation is the same as in Example 2. One of the features of this device is that it can be easily configured using a single flat CRT, and does not require sub-scanning to move the photosensitive paper.

〔effect〕

As described above, in the recording apparatus according to the present invention, the only movable part for optically writing an image on photosensitive paper is the recording paper conveyance system, and the only noise generated during image formation is the sound of recording paper conveyance. A high quality recording device can be realized. In addition, the recording device of the present invention has a simple configuration consisting of an optical writing device and a recording paper transport system, and the only consumable parts are the photoreceptor and developer paper, resulting in low running costs and high reliability that does not require maintenance. A printer can realize this.

Furthermore, in the present invention, by providing a suitable imaging optical system between the CRT and the photoreceptor in the optical writing device, it is possible to enlarge or reduce the image of the light emitter on the photosensitive paper.

Furthermore, the above-mentioned ultraviolet light exposure apparatus has the advantage that it can also be applied to the production of printing plates.

That is, during plate making for printing, an ultraviolet-sensitive PS plate is placed opposite an ultraviolet-emitting type CRT, and an image is formed and exposed on the PS plate. After exposure and development, it can be used as a printing original plate. One of the features of the above-mentioned plate making is that it is not necessary to produce a mask film for plate making, so it is possible to reduce costs in a short period of time.

It also has the advantage that it can be similarly applied to patterning using photorin.

During resist exposure in the photolithography process, an ultraviolet light-emitting CRT and a resist-coated substrate are placed opposite each other, and an image is formed on the substrate for exposure. One of the features of the above-mentioned exposure is that there is no need to manufacture a photomask, which allows Azumao to reduce costs in a short period of time.

[Brief explanation of drawings]

Figure 1 is a simple configuration diagram of the recording device of the present invention. Figure 2 is a simple configuration diagram of a CRT used in the recording device of the present invention. FIGS. 3(a), 4(b), 4(a), 5(b), and 6 are schematic diagrams for explaining other embodiments of the present invention, respectively. 1, 16, 17, 18...CR7 light emitting surface 3...
Ultraviolet photoreceptor 10---line CRT or more

Claims (1)

[Claims] What is claimed is: 1. An exposure apparatus using a photoreceptor having spectral sensitivity to ultraviolet rays as a photoreceptor, comprising an ultraviolet light-emitting type CRT and configured such that the photoreceptor and the CRT light-emitting surface face each other.