JPS63298329A - Recorder - Google Patents

Abstract

PURPOSE:To miniaturize a device itself and to reduce it in weight by setting a microcapsule whose mechanical strength is low in a temperature at which it is easy to be destroyed in case of destroying the microcapsule whose mechanical strength is low by a pressing means. CONSTITUTION:A pressurized developing device provides two pressure rolls 20 and 21 and superposes carried microcapsule paper 15 on a color developing paper 22 to pressurize so as to develop a latent image formed on the microcapsule paper 15 on the color developing paper 22. A device 24 for heating or cooling the pressure roll 20 is arranged inside the pressure roll 20 and sets the temperature of the surface of the pressure roll 20 at a temperature at which the microcapsule is easy to be destroyed. Thus, the pressurizing force of the pressing means is made smaller and the device itself can be miniaturized and lightened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording apparatus for recording on photosensitive and pressure sensitive recording paper.

[Prior art] There are two types of photosensitive and pressure-sensitive recording paper using microcapsules: self-coloring photosensitive and pressure-sensitive recording paper in which both microcapsules and a color developer are coated on one sheet of recording paper, and self-coloring type photosensitive and pressure-sensitive recording paper in which both microcapsules and a color developer are coated on one sheet of recording paper. There is a transfer-type photosensitive and pressure-sensitive recording paper consisting of microcapsule paper coated with microcapsules and color developer paper coated with a color developer.

In the case of self-coloring photosensitive and pressure-sensitive recording paper, exposure is performed based on image information, and then an image is formed on the recording paper by pressing the recording paper with a pressure roll.

In the case of transfer-type photosensitive and pressure-sensitive recording paper, microcapsule paper is exposed to light based on image information. An image is formed on colored paper (see Japanese Patent Laid-Open No. 129971/1983).

[Problems to be Solved by the Invention] Conventionally, in the case of both self-coloring type and transfer type photosensitive and pressure sensitive paper, images are formed only by pressing with a pressure roll. If we attempt to destroy microcapsules by pressure alone in this way, the microcapsules require a fairly high pressure of 500 to 600 kQ/Cm2, so the pressure roll and the device that supports the pressure roll need to be strong. As time passed, the equipment became heavier and larger.

[Object of the invention] This invention was made to solve the above-mentioned problems, and its purpose is to set the temperature of the microcapsules during suppression to a temperature at which the microcapsules are likely to be destroyed. By doing so, the pressure required to destroy the microcapsules can be reduced, and the device itself can be made smaller and lighter.

[Means for Solving the Problems] In order to achieve this object, the recording device of the present invention is designed to destroy microcapsules with low mechanical strength when the microcapsules with low mechanical strength are destroyed by the pressing means. A setting means is provided to set the temperature at a temperature that is likely to cause destruction.

[Function] According to the invention having the above configuration, the temperature is set at a temperature at which microcapsules with low mechanical strength are easily destroyed, so that the pressing force when the pressing means presses the microcapsules can be small.

[Example] Hereinafter, an example embodying the present invention will be described with reference to the drawings.

On the left side of the copying device 14, as shown in FIG.
Storage cassette 16 containing microcapsule paper 15
is attached removably.

Further, a document placing table 17 is provided on the upper surface of the copying apparatus 4, and the document M and placing table 7 are movable to the left by a conveyance device (not shown). In the copying apparatus 14, the microcapsule paper 15 can be moved from the left to the right by the conveyance device 10, and in this case, the movement of the microcapsule paper 15 and the movement of the original table 17 are synchronized.

A light source 18 for illuminating the original is disposed below the original placing table 17, so that the light emitted from this light source 18 is reflected by the original placed on the original placing table 17 and then emitted from the original placing table 17. , the image is formed on microcapsule paper 15 moving within the copying device 14, and a latent image corresponding to the original is formed on the microcapsule paper 15. The microcapsule paper 15 on which the latent image has been formed is transported by a transport device 10 to a pressure developing device 19 located on the right side of the device. Below the conveyance device 10 is a storage cassette 2 that stores the color developing paper 22.
3 are arranged, and the color developing paper 22 is conveyed to the pressure developing device 19 by the conveying device 11.

The pressure developing device 19 is equipped with two pressure rolls 20.21, and the microcapsule paper 15 and the color developer paper 22, which have been conveyed by the conveyance device 10.11, are superimposed and applied by the two pressure rolls 20.21. Press and microcapsule paper 1
The latent image formed in 5 is developed on color developing paper 22.

Inside the pressure roll 20, as shown in FIG.
A device 24 is provided for heating or cooling the pressure roll 20 to maintain it at a temperature at which the microcapsules are likely to be destroyed. The heating or cooling device 24 is a pressure roll 20
The temperature of the surface of the pressure port 20 is set to a temperature at which the microcapsules are easily destroyed. pressure roll 20
It is preferable that the surface temperature of the roller is uniform over the entire pressure section and does not vary with rotation of the roll or with time. Therefore,
In this case, a temperature sensor 27 is disposed on the surface of the pressure roll 20, and a detection device 28 that detects a signal input from the temperature sensor 27 to the heating or cooling device 24 controls the device 24 based on the detection by the detection device 28. Temperature feedback is applied via device 29 to keep the surface temperature of pressure roll 20 constant. In this case, in the heating or cooling device 24, a halogen lamp, a nichrome winding, an infrared lamp, or the like is used as the heating device, and a Peltier element or the like is used as the cooling device.

Therefore, the microcapsule paper 15 is the developer paper 22.
゛The pressure roll 20 and the pressure roll 21 are superimposed and kept at a surface temperature that easily destroys the microcapsules.
Heat is transferred to the microcapsule paper 15 when it passes through the pressurized part between the microcapsule paper 15 and the microcapsule paper 15 is set at a temperature at which the microcapsules are easily destroyed. In addition, the temperature is approximately 80℃~10℃
It is 0°C. As a result, the microcapsules of the microcapsule paper 15 having weak mechanical strength become more easily destroyed.

Another embodiment is shown in FIG. Incidentally, the same months are given to the same members as in the above-mentioned embodiment, and detailed explanations are omitted.

In this embodiment, a configuration is used in which a VC device 24 for heating or cooling is disposed outside the pressure roll 25 having a small diameter. The small diameter pressure roll 25 is assisted in pressurization by a backup roll 26.

The heating or cooling device 24 is in contact with the surface of the small-diameter pressure roll 25 or is kept at a slight distance from the surface of the small-diameter pressure roll 25 to bring the surface temperature of the small-diameter pressure roll 25 to a temperature at which the microcapsules of the microcapsule paper 15 are easily destroyed. It is arranged like this. Also heating or cooling device 24
is the pressure roll 2 in the advancing direction of the microcapsule paper 15
It is placed closer to you than 5. Therefore, the device 24 directly preheats or precools the microcapsules, thereby bringing the temperature of the microcapsules to a temperature at which they are more likely to be destroyed. By using such a mechanism, this embodiment also has the same effects as the previous embodiment.

In the first and second embodiments described above, the setting means for setting the temperature at which the microcapsules are easily destroyed is constituted by the heating or cooling device 24.

Further, in the first embodiment, the pressing means is the pressure roll 20.2.
1, and in the second embodiment the pressing means consist of pressure rolls 21, 25, 26. However, the setting means may be a blower that applies hot air or cooling to the microcapsule paper, or may use various other configurations. Further, as a pressing means, any means other than a pressure roll may be used as long as it presses and destroys unexposed microcapsules.

[Effects of the Invention] As described above, according to the present invention, it is possible to provide a recording device in which the pressing force of the pressing means is small and the entire device is small and lightweight.

[Brief explanation of the drawing]

1 to 3 show embodiments embodying the present invention,
Fig. 1 is a sectional view showing the main part of the embodiment, Fig. 2 is a sectional view showing the whole of the embodiment, and Fig. 3 is a sectional view showing the main part of the embodiment.
FIG. In the figure, 20, 21, 25, and 26 are pressure rolls, and 24 is a means for heating or cooling.

Claims (1)

[Scope of Claims] Exposure means for exposing a light-sensitive and pressure-sensitive recording sheet having at least on its surface microcapsules whose strength changes mechanically in response to temperature or light and in which a dye precursor is encapsulated; In a recording device equipped with a pressing means for pressing a photosensitive and pressure-sensitive recording sheet to destroy microcapsules with low mechanical strength, when the pressing means destroys microcapsules with low mechanical strength, A recording device characterized in that it is provided with a setting means for setting a temperature at which microcapsules with a low temperature are easily destroyed.