JPH0216550A - Image forming device - Google Patents

Abstract

PURPOSE:To lower the temperature of a 2nd recording medium itself and to prevent recording media from sticking together by providing a mechanism which heats the 2nd recording medium before development is performed. CONSTITUTION:The image forming device is equipped with a guide part which is formed so as to guide the 2nd recording medium 10 to a developing means 8 and a heat radiation part 11 which is arranged at the guide part and cools an electric element 18 for driving an image forming device, and the 2nd recording medium 10 which is guided by the guide part receives the heat radiated by the heat radiation part 11. Therefore, the 2nd recording medium 10 passes through the guide part where the heat radiation part 11 for cooling the electric element 18 is arranged, so the 2nd recording medium 10 is heated to lower its humidity before the 1st recording medium and 2nd recording medium 10 are developed in contact. Consequently, the adhesion between the 1st and 2nd recording media is eliminated even at high humidity.

Description

[Detailed description of the invention]

[Industrial Application Field 1] The present invention relates to an image forming apparatus that forms an image on a recording medium based on predetermined image information.

[Prior art 1] Conventionally, this type of image forming apparatus irradiates light onto an original and forms an image of the reflected light or transmitted light on a photosensitive recording medium through an optical system such as a reflecting mirror, filter, or lens. A device is known that is configured to form a latent image or a visible image on the photosensitive recording medium. Specifically, U.S. Patent No. 4399
In the device using the photosensitive pressure sensitive recording medium (consisting of a photosensitive pressure sensitive sheet and color developer paper) proposed in the specification of No. 209,
A latent image is formed by exposure on a photosensitive pressure-sensitive sheet as a photosensitive recording medium, a developer paper is placed on the surface on which the latent image is formed and pressure is applied, and the developer paper is then heated to form the desired developer image. I was getting . This pressure treatment is generally called pressure fixing, and a pressure roller is used. Heat treatment is generally called heat fixing, and a heat roller is used. [Problem to be solved by the invention 1] However, when pressure fixing is performed in a humid outside air,
The binder carried on the photosensitive pressure-sensitive sheet and the binder carried on the developer paper are fused together, and the photosensitive pressure-sensitive sheet and the developer paper are in an adhesive state. If the raincoat in this state is forcibly removed, the components supported on the photosensitive pressure-sensitive sheet will be peeled off from the sheet and adhere to the developing paper, making it impossible to obtain a good developed image. Similarly, when heat fixing is performed in humid outside air, there is a problem in that the developer paper sticks to the surface of the heat roller. Therefore, image forming apparatuses using conventional photosensitive and pressure sensitive paper recording media can only be used in locations where humidity is controlled. The present invention was made to solve the above problems, and by providing a fivt that heats the second recording medium before development, the humidity of the second recording medium itself is lowered and the humidity between the second recording medium and the recording medium is reduced. The purpose is to prevent sticking. [Means for Solving the Problems] To achieve this object, the image forming apparatus of the present invention includes a guide portion formed to guide the second recording medium to the developing means, and a guide portion formed in the guide portion. a heat dissipation section that is disposed and cools an electric element for driving the image forming apparatus, and the second recording medium guided through the guide section receives heat generated from the heat dissipation section. Features. 1 Effect] In the present invention having the above configuration, since the second recording medium passes through the guide section in which the heat dissipation section for cooling the electric element is disposed, the first recording medium and the second recording medium Before developing the tjS2 recording medium in close contact with each other, the tjS2 recording medium is heated to lower the humidity. [Example] Hereinafter, an example embodying the present invention will be described with reference to the drawings. In the following examples, an embodiment will be shown in which a photosensitive and pressure-sensitive paper compatible with one color, which is proposed in U.S. Pat. No. 4,399,209, is used as the photosensitive paper. Although it is necessary to make some changes to the fixing system, the exposure system can be used as is. This photosensitive and pressure-sensitive paper is made of microcapsule paper that changes its mechanical strength when exposed to light, and has microcapsules on its surface that contain a dye precursor (first component), and a microcapsule paper that can be destroyed. The color developer paper supports a color developer (second component) that reacts with the dye precursor inside the microcapsules. First, the configuration of the image forming apparatus will be explained with reference to FIG.
A light source 12 is disposed at the bottom inside the image forming apparatus 100, and a color correction filter 13 is disposed to the right of the light source 12. Further, on the right side of the color correction filter 13 is a 6L reflector 14.
is arranged, and a document table lath 15 is arranged above it. A tray 6 is also arranged above the document table glass 15, and a photosensitive and pressure sensitive paper roll cassette 1 is fixed on the tray 6. A photosensitive and pressure sensitive paper 2 constituting a first recording medium is housed inside the photosensitive and pressure sensitive paper roll cassette 1 on the right side, and a winding roller 5 is housed on the left side of the inside. A spring 4 is arranged below the tray 6, and below the spring 4, a document contacting rubber 3 is swingably fixed to the tray 6 via the spring 4. A pressure fixing roller 8 constituting a developing section is arranged on the left side of the tray 6, and a heat fixing roller 7 is arranged above it. As shown in FIG. 2, on the lower left side of the pressure fixing roller 8, a heat dissipating plate 11 for an electric element, which will be described later, is arranged, and this plate also serves as a developing paper feed table constituting a guide section. A color developing paper feed roller 9 is arranged above the heat dissipation plate 11. This heat sink 11 has a support portion 19 hanging downward.
is attached, and a substrate 16 is disposed below the support portion 19. An electric element (diode in this case) 1″8 is disposed in close contact with the side wall of the support portion 19. When the electric element 18 is energized, its heat is transmitted to the heat sink 11. , is inserted between the heat dissipation plate 11 and the color developing paper feed roller 9. Between the contact rubber 3 and the document table lath 15,
A gap is provided, and the document protection sheet 17 is inserted and stored. Next, the operation will be explained. First, an original W4 (not shown) is placed on the original protection sheet 17. Thereafter, the document protection sheet 17 is inserted into the image recording apparatus 100, and the contact rubber 3 is lowered to bring the photosensitive pressure sensitive paper 2 and the document protection sheet 17 into close contact with each other by the force of the spring. Then, the light source 12 is turned on, and only the light that has passed through the color correction filter 13 is diffusely reflected by the diffuse reflection plate 14, and the original (not shown) fixed to the original protection sheet 17 is exposed to light, and the light-sensitive and pressure-sensitive paper is A latent image is formed on 2. After the exposure is completed, the exposure table driving device (not shown) is driven to lift the contact rubber 3 and release the contact between the photosensitive pressure sensitive paper 2 and the document protection sheet 17. Then, the color developer paper 10 sent by the color developer paper feed roller 9 and the photosensitive pressure sensitive paper 2 are overlapped and passed through the pressure fixing roller 8, and the latent image formed on the photosensitive pressure sensitive paper 2 is transferred to the color developer paper 2. Transfer onto ##10. Thereafter, only the color developer paper 10 is passed through a heat fixing roller 7 to improve color development and output an image. During the above-mentioned operation, the developer paper 10 moves in close contact with the heat sink 11 which also serves as a developer paper feeder, so the developer paper 10 is heated by the heat of the heat sink and then passes through the pressure fixing roller 8.
humidity is removed, and sticking between the color developer paper 10 and the light-sensitive and pressure-sensitive paper 2 does not occur even in commercial humidity. The present invention is not limited to the embodiments described in detail above, and various changes can be made without departing from the spirit thereof. For example, the heat dissipation plate and the paper passage portion for guiding the color developing paper may be constructed from separate members. Further, although a light source is used in this embodiment, a recording medium on which a latent image is formed by receiving heat may also be used. [Advantageous Effects of the Invention 1] As described in detail above, the image forming apparatus of the present invention can be used without any problem even in high humidity conditions, and can form good images. Furthermore, since the second recording medium is heated without particularly using a new heating element, a cost-effective image forming apparatus can be constructed.

[Brief explanation of the drawing]

Figures 1 to 2 show examples embodying the present invention. Figure 1 is a schematic sectional view showing the configuration of an image forming apparatus, and Figure 2 is an enlarged view of the feeding part of the color developing paper. FIG. 100... Image forming device, 2... Photosensitive and pressure sensitive paper (first
), 7... Heat fixing roller, 8... Pressure fixing roller (developing hand Pl), 9... Color developer paper feed roller 10... Color developer paper (recording medium @2), 11...・・・
Heat sink (heat sink), 12... light source (latent image forming means),
13... Color correction filter 15... g, stacking glass, 16... substrate, 18... guide (electrical element). Figure 1 Figure 2

Claims (1)

[Claims] 1. A first component that supports a first component on its surface and is capable of forming a latent image.
a recording medium, a second component that reacts with the first component is supported on the surface, and when the first component and the second component react, a second component on which the latent image is visualized; A recording medium, a latent image forming means for forming a latent image on the first recording medium, and a developing means for developing the first recording medium and the second recording medium on which the latent image is formed by bringing them into close contact with each other. An image forming apparatus comprising: a guide part formed to guide the second recording medium to the developing means; and an electric element disposed in the guide part for driving the image forming apparatus. An image forming apparatus, comprising: a heat radiating section for cooling, wherein the second recording medium guided by the guide section receives heat generated from the heat radiating section.