JPH02252594A - copy blackboard - Google Patents

Abstract

PURPOSE:To form an image on plain paper, postcard or plastic film by projecting a reflected or transmitted light from a blackboard on the surface of a microcapsule sheet, and pressing any support with a developer applied, together with the microcapsule sheet. CONSTITUTION:Supports 10 are separated one by one and sent out to a toner case 12. A developer toner 13 is carried to the surface of an application roller 15 by a feed roller 14, and then is charged with positive polarity by friction. Next, the developer toner 15 is electrostatically attracted by an opposed roller 16 and applied to the support 10. The light emitted from a light source 8 is transmitted through a phototransmissive film sheet 1, reaching the surface of a capsule sheet 21 at a B point through an optical lens 23. Then an image is formed on the sheet 21. If characters are printed on the phototransmissive film sheet 1, the light from the light source 8 is not allowed to pass through the part where characters are printed, so that the microcapsules of the capsule sheet 21 remain uncured. The capsule sheet 21,and the support 18 to which a developer is applied pass through a pressure roller 22, then the microcapsules which are not yet cured by light are broken, and dye precursors of different colors contained in the capsule and the developer react to each other, thus developing colors.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copy blackboard that outputs an image on any medium such as plain paper or plastic film.

[Prior Art] Conventionally, microcapsules mainly contain a dye precursor, a photocurable resin, and a photopolymerization initiator, and a substance that reacts with the dye precursor in the microcapsules to form a color, a so-called color developer, is placed on the surface of the microcapsule. Copy blackboards using so-called photosensitive and pressure-sensitive media supported on the wafer are known. This copy blackboard is patent 61
．． -113874.

[Problems to be Solved by the Invention] However, in this copy blackboard, although it is possible to form an image on light-sensitive and pressure-sensitive paper on which microcapsules and a color developer are supported on the surface in advance, it is possible to form an image on so-called plain paper, postcards, It has not been possible to form images on arbitrary media such as plastic films.

The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a copy blackboard that can directly form images on arbitrary media such as so-called plain paper, postcards, and plastic films. It is in.

[Means for Solving the Problems] In order to achieve this object, 1 = the copy blackboard of the present invention directs reflected or transmitted light from the blackboard on which an image is drawn onto a microcapsule sheet on which microphone capsules are supported. Project.

It also has a mechanism for applying a color developer to any support.

[Function] According to the present invention having the above configuration, reflected or transmitted light from the blackboard is projected onto the microcapsule sheet, and any support coated with a color developer inside the device is transferred to the microcapsule sheet. A visible image is formed by applying pressure together with the image. That is, an image can be formed on so-called plain paper, postcards, plastic films, etc. that are not coated with microcapsules, color developer, etc. in advance.

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

The drawing shows a schematic representation of a copy blackboard for implementing the invention.

In the figure, 1 is a light transmitting film sheet, 2 is a whiteboard, 3, 4 are winding rollers for winding up the light transmitting film sheet, 5, 6.7 are guide rollers for guiding the light transmitting film sheet, Reference numeral 8 indicates a light source disposed opposite to the light transmitting film sheet, 9 indicates a reflecting mirror disposed to collect light, 10 indicates an arbitrary support selected by the user, and 11 accommodates the support 10. It is a cassette case. 12 is a toner case in which developer toner 13 is stored. 14 is a supply roller, 15 is an application roller,
16 is a facing roller, which is a means for applying the developer toner 13 to the support 10.

Reference numeral 17 denotes a conveyance path for coating the color developer and conveying the support 18. 21. is a capsule sheet, and the delivery roller 1
9 and a take-up roller 20.

This capsule sheet 21 has microcapsules for each of the basic colors of cyan, magenta, and yellow coated on the upper surface of the base film. The microcapsules for each color contain dye precursors for each color and photocurable resins having different spectral sensitivities so that the sensitive wavelength ranges of the microcapsules for each color are different from each other.

22 is a pressure roller for destroying uncured capsules on the microcapsule sheet 21.

23 is an optical lens.

The blackboard constructed as described above can be used as a normal blackboard by drawing characters, figures, etc. on the light-transmitting film sheet 1 with a water-based black marker or the like. At this time, since the back side of the light-transmitting film sheet 1 is supported by the whiteboard 2, it is easy to write letters, etc., and the black characters written on the light-transmitting film sheet 1 are The side surface is white)2
The background is white, making it easy to read.

When a copy start switch (not shown) is turned on in order to copy characters written on the light-transmitting film sheet 1, the guide rollers 5, 6.7 rotate, and the light-transmitting film sheet 1 is fed. A portion of the film is wound onto the film winding roller 3.

After that, the copying start point of the light-transmitting film sheet 1 is set to A in the drawing.
When the point is reached, the feed rollers 5, 6 . The rotation of γ stops.

On the other hand, the supports 10 in the cassette case 11 are separated one by one and sent toward the toner case 12. The developer toner 13 is transferred to the application roller 15 by the supply roller 14.
It is carried upward and is triboelectrically charged here, becoming positively charged. The application roller 15 is grounded and the developer toner 13 is directed toward the opposing roller 16 biased at -1 to 2 kV.
is electrostatically attracted and can be applied to the support 10. The support 18 further coated with a color developer is a conveyance path]7
Follow this toward the developing section.

Further, the capsule sheet 21 controlled by the feed roller 19 and the take-up roller 20 is placed at the light source 8 at the position B.
Exposure is performed by receiving light from the surface.

A light transmitting film sheet 1 and a capsule sheet 21 are fed in synchronization with a light source 8 blinking. At this time, the image on the light transmitting film sheet 1 is reduced and the image on the capsule sheet 2 is reduced.
1, so based on this reduction ratio, the capsule sheet 21 is
The feed amount is determined.

After the light emitted from the light source 8 selectively passes through the light transmission film 1, it reaches the capsule sheet 21 at point B via the optical lens 23 and is imaged.

Assume that white light is used as the light source 8. If characters, etc. are written on the light-transmitting film sheet 1, the light from the light source 8 will not pass through the light-transmitting film sheet], so the capsule sheet 2
The microcapsules of No. 1 remain uncured. If nothing is written on the light-transmitting film sheet 1, the light from the light source 8 will reach the capsule sheet 21, and the microcapsules coated on the capsule sheet 21 will be cured, and some hardened microcapsules and unhardened microcapsules will be hardened. A latent image is formed on the capsule sheet 21 by the capsules.

Now, the support 18 coated with a color developer and the capsule sheet 21 on which a latent image has been formed pass through a pressure roller 22, whereby the microcapsules that have not been photocured are destroyed, and the dye precursors of each color contained therein and the color developer The agent will react and color will develop.

In this way, an image drawn on the light-transmitting film sheet 1 with a marker or the like can be formed on any support 10.

The take-up roller 3.4, guide rollers 5, 6.7, delivery roller 19, take-up roller 20, and pressure roller 22 are each driven by a stepping motor, and the stepping motor is controlled by a central controller such as a microprocessor. Needless to say, the blinking control of the light source 8 is also performed by the central controller.

[Effects of the Invention] As is clear from the detailed description above, according to the present invention, it is possible to copy and form a blackboard image on so-called plain paper, postcards, plastic films, etc. that are not coated with a color developer in advance. can.

[Brief explanation of drawings]

The drawing shows an embodiment embodying the present invention, and is a diagram showing a copy blackboard of the present invention. In the figure, 1 is a light transmitting film sheet, 8 is a light source, 13 is a color developer toner, 15 is a coating roller, 18 is a support coated with a color developer, and 21 is a capsule sheet.

Claims (1)

[Claims] 1. A copy blackboard configured to copy the image by projecting reflected or transmitted light from the blackboard on which an image is drawn onto a photoreceptor, wherein the photoreceptor reacts to the light. A copy blackboard, further comprising means for applying a second component, which is a first component whose mechanical strength changes and which develops color by reacting with the first component, to an arbitrary medium.