JPH0131172B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable copying machine. In the simplest conventional copying machine, such as a diazo copying machine, the original and photosensitive paper are stacked and inserted into the machine, exposed in that state, and then the original and photosensitive paper are separated, and the original is exposed directly to the photosensitive paper. The paper was to be discharged outside the machine after being processed for development and fixation. Therefore, copying machines required at least a conveying device for originals and photosensitive paper, an exposure device, and a developing/fixing device, and had to be of a stationary type. In addition, originals are limited to sheet originals as they must be inserted into the machine.
Moreover, it must be translucent, so it cannot be copied from a book. Of course, there are types of copying machines in which the original is not inserted into the machine, but because the exposure optical system is complicated, they are even larger than the above-mentioned types.

The purpose of the present invention is to obtain a copying machine that is simpler than the above-mentioned one, and exposes the original by transporting the original or inserting the original into a predetermined part and bringing it into close contact with photosensitive paper. This simplified the conveyance device, and by using photosensitive paper that does not develop color when exposed to visible light (this is called fixing) and develops color when exposed to ultraviolet light, the color developing/fixing device was simplified and the copying machine became portable. This has been achieved.

Next, the present invention will be explained with reference to illustrated embodiments.
FIG. 1 shows a first embodiment of the invention. A long photosensitive paper 1 is wound around a tube 2 and housed in a light-shielding cartridge 3. The cartridge 3 is detachably set in the copying machine main body 4,
The tube 2 is rotatably supported, and the photosensitive paper 1 can be drawn out through the slit 5.

The photosensitive paper 1 is a transparent base coated with a photosensitizer, and this photosensitizer develops color by, for example, imagewise exposure with visible light and irradiation with ultraviolet light. Such a photosensitizer is known as proof paper Dylux XP-503 manufactured by DuPont, for example, and produces a blue image on a white background.

The copying machine main body 4 accommodates the cartridge 3 in its upper part as described above, and a handle 6 is provided at the top thereof. Further, a transparent glass cylinder 7 and a friction roller 8 are rotatably provided at the bottom.
The glass cylinder 7 and the friction roller 8 are arranged adjacent to each other without contacting each other, and slightly protrude from the bottom of the copying machine body 4. glass cylinder 7
An intermediate friction roller 9 is placed above the glass cylinder 7, and a roller 10 is placed above the glass cylinder 7.
is arranged below the slit 5 of the cartridge 3. The friction roller 8 and the intermediate friction roller 9 are made of a material with a large friction coefficient, such as hard rubber.

Inside the glass cylinder 7 is a halogen lamp 11.
and a reflecting mirror 12 are provided, which are supported by the copying machine main body 4 regardless of the rotation of the glass cylinder 7. The halogen lamp 11 is formed into a tubular shape, and its longitudinal direction is the glass cylinder 7.
is arranged parallel to the axial direction of the The reflecting mirror 12 is an ellipsoidal mirror, and the halogen lamp 11 is located at its first focal point, and the second focal point is located at the outer peripheral surface of the glass cylinder 7.

A copy outlet 13 is provided in the copying machine main body 4, and a shelf 14 is provided inside the copy outlet 13. The shelf 14 has an upper surface parallel to the common circumscribed surface of the glass cylinder 7 and the friction roller 8, and the upper surface coincides with the tangential surface of the intermediate friction roller 9. A tubular ultraviolet lamp 15 is arranged above this shelf 14 to irradiate it. The ultraviolet lamp 15 is surrounded above and on the sides by a light shielding wall 16.

Next, the operation of the copying machine will be explained. After setting the cartridge 3 in the copying machine main body 4, the photosensitive paper 1 is pulled out from the slit 5, passed between the roller 10 and the glass cylinder 7, and wound around the outer periphery of the glass cylinder 7.
and the glass cylinder 7, and then pulled out from the copy outlet 13. Next, grasp the handle 6 and place the copying machine main body 4 on the document 17, turn on the power switch (not shown), and turn on the halogen lamp 1.
1 and the ultraviolet lamp 15 are turned on. and,
The copying machine main body 4 is manually moved in the direction of arrow A while being pressed against the original 17.

Due to the movement of the copying machine body 4 in the direction of arrow A, the original 1
The glass cylinder 7, which is in pressure contact with the glass cylinder 7 through the photosensitive paper 1, and the friction roller 8, which is in direct pressure contact with the glass cylinder 7, rotate in the directions of arrows B and C, respectively. Further, the intermediate friction roller 9 rotates in the direction of arrow D, and transmits the rotation of the friction roller 8 to the glass cylinder 7 side.
Therefore, the photosensitive paper 1 moves along with the glass cylinder 7 and is conveyed toward the copy outlet 13 without slipping relative to the original 17.

The photosensitive paper 1 is attached to the original 1 by the glass cylinder 7.
However, since the irradiation light from the halogen lamp 11 is focused on this pressure contact part,
will receive slit exposure from behind. The base of the photosensitive paper 1 is transparent, and the light that passes through it reaches the original 17, causing a difference in the reflected light from the image and non-image areas of the original, forming a latent image on the photosensitive paper 1 due to this difference. be done. The latent image in the non-image area is non-colored. Next, the image area develops color by being irradiated with the ultraviolet lamp 15,
When the photosensitive paper 1 exits from the copy outlet 13, it is visualized and becomes a copy. If the photosensitive paper is made of a material that does not easily transmit ultraviolet light, the ultraviolet light is irradiated from the photosensitive film side. If you view the copy from the side of the photosensitive paper 1 that is in close contact with the original 17, the image will be reversed, but since the base of the photosensitive paper 1 is transparent, you can see the copy image from the opposite side, so you will see the correct image. can be seen.

FIG. 2 shows a second embodiment of the invention. In this example, an ultraviolet lamp 15 is arranged together with a halogen lamp 11 in a glass cylinder 7'. The photosensitive paper 1 which has been subjected to slit exposure with visible light from the halogen lamp 11 is colored by ultraviolet light irradiated through the glass cylinder 7' while it is on the peripheral surface of the glass cylinder 7'.
Note that 16' is a light shielding plate for ultraviolet light.

In both of the above embodiments, a friction roller 8 is provided, and this friction roller 8 helps the rotation of the glass cylinders 7, 7' to prevent slippage between the photosensitive paper 1 and the original 17, and also prevents slipping between the photosensitive paper 1 and the original 17. It is possible to prevent the main body 4 from tilting and perform slit exposure at the portion of the photosensitive paper 1 that is in close contact with the original 17.

As described above, the present invention has a main body formed with a part that removably accommodates photosensitive paper consisting of a photoreceptor and a transparent base that does not develop color when exposed to visible light and develops color when exposed to ultraviolet light, and a transparent cylinder and an original at the bottom of the main body. without touching the friction rollers that are in contact with each other.
The photosensitive paper protrudes from the bottom of the main body and is rotatably arranged adjacent to each other, an intermediate friction roller is pressed against both, a visible light source for slit exposure is disposed inside the transparent cylinder, and the photosensitive paper rolls into contact with the transparent cylinder and the intermediate friction roller. Since the ultraviolet light source reaches the ejection port via the irradiation area, the rotation of the friction roller that rotates in contact with the original rotates the glass cylinder via the intermediate friction roller, so that the photosensitive material that is wound around the glass cylinder and transported is The paper does not slip against the original, and the friction roller prevents the main body of the copying machine from tilting, allowing accurate slit exposure in areas where the photosensitive paper and the original are in close contact.

[Brief explanation of drawings]

1 and 2 are longitudinal sectional side views showing two embodiments of the present invention, respectively. 1... Photosensitive paper, 4... Copying machine body, 7, 7'... Glass cylinder, 8... Friction roller, 9... Intermediate friction roller, 11... Halogen lamp, 12... Reflector, 13... Copy outlet, 15... Ultraviolet lamp ,
17...Manuscript.

Claims (1)

[Claims] 1 Inside the main body, there is formed a part that removably accommodates a photosensitive paper consisting of a photoreceptor and a transparent base, which does not develop color when exposed to visible light and develops color when exposed to ultraviolet light, and a transparent cylinder and a friction roller that contact the original are connected at the bottom of the main body. The photosensitive paper protrudes from the bottom of the main body and is rotatably arranged adjacent to each other without touching the main body, an intermediate friction roller is pressed against both, a visible light source for slit exposure is disposed inside the transparent cylinder, and the photosensitive paper is attached to the transparent cylinder, the intermediate A portable copying machine that connects friction rollers and passes through an ultraviolet light source irradiation area to a discharge port.