JPH05150373A - Color proof making device - Google Patents

Abstract

PURPOSE:To automatically obtain a desired number of sheets of color proof by automatically supplying a specific original, selected among originals placed on an original platen means to an exposure part and automatically collecting it after exposure. CONSTITUTION:An original tray 42 for a Y proof slides to below the frame 63 of an original feed unit 61 and stands by there, and the frame 63 after moving down to suck a color separation mesh original film for the Y plate placed on the original tray 42 for the Y proof by suction caps 62 is elevated again and stops at a specific position. Then the original tray 42 is placed on the top surface 12 of an original platen 13 so that hole formed in the original film is fitted onto a pin bar 11 by putting the frame 63 back to its original position from below and moving down the frame 63 while the color separation mesh original film is sucked by the suction caps 62. Thus, by the original feed unit 61, etc., the originals placed on the Y-proof originals trays 42-44 are automatically supplied to an exposure part and they are exposed and then automatically collected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is intended to check the finish of a printed matter in advance by inspecting the layout of the original and the like before making a real printed matter by using each decomposed halftone original that has been subjected to the disassembled exposure and development finish. In the color plate inspection system of the above, an apparatus for producing a plurality of proofs (color proof).

[0002]

2. Description of the Related Art Conventionally, an exposure apparatus irradiates light from a light source onto a surface of an original to form an image on the photosensitive material with a projection lens having a function of enlarging, reducing, or equalizing, and a method of superposing the original and the photosensitive material. There is a method of irradiating light from a light source to perform contact exposure. Further, as the light source light irradiating means, there are scanning exposure and static exposure, but in the former, a compact exposure apparatus is realized with a relatively small light source, whereas in the latter, a light source with relatively high brightness is generally used. In order to obtain parallelism and uniformity, it is necessary to keep a distance from the light source to the exposure surface, which results in a large exposure apparatus.

In the field of printing plate making, a large amount of film is used in the process from the continuous tone image of reversal film, color negative film, paper, etc. to the production of a printing plate composed of an image composed of halftone dots. Colors are separated and images are combined. Therefore, the work becomes complicated, and many mistakes such as mistakes in characters and layout occur. In addition, it is easy to forget to fix it because the change of characters such as price, layout change, color change, etc. from the orderer are mixed. It is also necessary to check in advance whether the printed matter will have the desired color tone and gradation. These are collectively called calibration.

For this reason, various systems other than test printing called proof printing have been announced and sold for the purpose of confirming these. For example, a CRT is used, an image is formed with a dry toner, an electrophotographic method and the like. However, these calibration systems generally require a long time to raise one calibration sheet, have high material costs, and have poor workability, and thus cannot be practically sufficient systems.

On the other hand, as another method of obtaining a proof, there is a method of printing a decomposed halftone original on a color photosensitive material by using a spectral color. These are so-called "bright room specifications" that allow the work to be done in a normal room. The photosensitive material itself should be held in the apparatus and the exposure operation should be performed under a normal light without using a dark room. Can be done. However, since it is an image pickup system, the flare of the lens and the like occur, and the gradation reproducibility is deteriorated. That is, due to flare and the like, the small dots of the net tended to fly and the large dots tended to collapse.

To this end, the applicant of the present invention places a photographic light-sensitive material under an original document on an exposure table, and then puts a transparent cover sheet on the original document. After making a vacuum contact with the material, exposure and printing are performed from the cover sheet side to create a proof product (color proof) using the color photosensitive material to detect errors in the separated mesh original and to prepare the print finish in advance. And filed an application for a color proof making device that allows the user to take action to correct the disassembled halftone original.
196064, etc.).

Here, the color proof making device is
Color separation nets separated into plates, M plates, C plates, and black plates are positioned one by one or several by one, and are overlapped on a color light-sensitive material for multiple contact exposure to create a color proof. This is to detect an error in the manuscript and to check the print finish in advance so that the action of correcting the disassembled manuscript can be taken.

[0008]

By the way, some users may request that a color proof created by using the color proof creating apparatus be distributed to a plurality of places or be attached as a sample. Therefore, it may be necessary to create a plurality of color proofs. However, in the conventional color proof making apparatus described above, the color separation halftone originals that have been color-separated into the Y plate, the M plate, the C plate, and the black plate are positioned one by one and overlapped on the color light-sensitive material for multiple contact. Expose each Y plate,
It is indispensable to replace each color separation halftone original one by one each time a color proof in which the M plate, the C plate and the black plate are printed is created.

That is, the color light-sensitive material, the color-separated halftone original, the exposure device, etc. are arranged inside the space of the completely light-tight state formed by the light-shielding cover, and, for example, after the first color exposure by the filter, The completely light-tight state is released, the color separation halftone original is replaced with another color separation halftone original, and the color photosensitive material and the color separation halftone original are brought into a vacuum close contact state again to perform contact exposure and the like.

For this reason, when making a plurality of color proofs, it is necessary for the operator to carry out the work without leaving the device. Moreover, this document replacement and setting work is labor-intensive due to the opening and closing work of the light-shielding cover provided on the placing portion for setting the document, and the work process of the operator becomes complicated, and the working time is also reduced. Greatly expand.

The present invention has been made in view of the above situation, and the work process performed by the operator when making a plurality of color proofs is complicated because it is only necessary to first set it on the document placing means. It is an object of the present invention to provide a color proof creating apparatus that creates a desired number of color proofs and that can significantly reduce the working time.

[0012]

SUMMARY OF THE INVENTION Therefore, according to the present invention, after a photographic light-sensitive material is placed under a document and placed on an exposure table, the document and the light-sensitive material are brought into vacuum contact with each other to perform exposure printing. In the creating apparatus, a document placing unit for placing a document, and a document conveying unit for automatically supplying and recovering a predetermined document selected from the documents placed on the document placing unit to the exposure unit, The calibration was performed by providing an exposure printing means for printing the supplied original on the photographic light-sensitive material and a photographic light-sensitive material supply means for supplying the photographic light-sensitive material subjected to the exposure printing to an automatic developing machine.

[0013]

According to this structure, the original placed on the original placing means is selected by the original conveying means (for example, first, Y
The plate is automatically fed to the exposure section. Then, after the photographic photosensitive material is placed under the supplied original document and placed on the exposure table, the original document and the photographic photosensitive material are brought into vacuum contact with each other, and then exposure baking is performed from the cover sheet side (that is, First, the Y plate is exposed and printed). Then, after the exposure printing is completed by the document conveying means, the document (Y plate in this case) used for the printing is automatically collected from the exposure section to the film document placing means.

When the above steps are completed, it is assumed that the exposure printing for the Y plate is completed, and the same operation as described above is performed on other originals, and the same steps are performed using the M originals, for example. .. Then, when the exposure printing is completed for all types of originals, the photographic photosensitive material that has been exposed and printed is supplied to the automatic developing machine by the photographic photosensitive material supply means,
Used for development.

It is possible to automatically obtain a desired number of color proofs by repeating each of the above-described means a plurality of times set by the operator.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the contents of this embodiment. 1 to 4 show a first embodiment according to the present invention. In the figure, a color proof creating apparatus 1 is a Y plate,
Before using the separated mesh original film that has been color-separated into M plate, C plate, and black plate, check whether there is any mistake in the layout of the original film before creating the actual printed matter, and finish the printed matter in advance. It is a device for obtaining a proof (color proof) for checking.

The body of the color proof making apparatus 1 is composed of a leg portion 2 and a body frame 3 supported by the leg portion 2. The main body of the color proof making apparatus has an upper surface 12 on which a pin bar 11 for positioning the original is placed on the upper side.
A manuscript table 13 having the above is provided, and a light-shielding cover 15 capable of forming a dark room as a first chamber 14 is provided on the upper part of the manuscript table 13 so as to be opened and closed.

An exposure device 21 for scanning and exposing the contact exposure surface of the document table 13 is provided in the first chamber 14. At the center of the exposure device 21, one or more tubular light source lamps are provided.
Reference numeral 22 is provided so as to be surrounded by a drum-shaped inner reflecting mirror and a transmission window fixed to the housing. The polygon 23 is concentrically provided on the outer side of the center of the cylinder and a filter 24 of blue (B), green (G), red (R) or the like is rotatably provided on each cylindrical surface. The transmission window faces the exposed surface of the color light-sensitive material.

Then, the exposure device 21 can move in the first chamber 14 formed when the light shielding cover 15 is closed, for scanning on a rail (not shown) provided on the main body. There is. A sensitive material mounting table 18 is provided as a second chamber 17 inside the main body frame. The photosensitive material mounting table 18 is driven by a motor and can move up and down.

On the other hand, the second one in which the sensitive material mounting table 18 is stored.
An endless light-shielding curtain belt (not shown) is provided as a light-shielding member in order to switch formation and opening of light tightness of the chamber 17 with respect to the first chamber 14. On the other hand, as a configuration according to the present invention, a document tray as a document placing means for placing a document film on the upper part of the main body of the color proof making apparatus 1, and a document film placed on the document tray are the document sheets. A document transport unit 61 that supplies the table 13 is provided.

Here, the document trays are the Y plate document tray 42, the M plate document tray 43, and the C plate document tray on which the separated mesh document films of the Y plate, the M plate, the C plate, and the black plate are placed. 44
Also, an original tray 45 for black plates is provided, and each is provided so as to be slidable in the front-back direction. In addition, each of the trays 42 to 45 is also provided with a positioning pin 46 to be inserted into a document positioning hole (a hole into which the pin bar 11 is inserted) provided in the document film, and each document has a predetermined size. Is placed in the position.

Further, an original tray 42 is provided above the original tray.
~ 45, a document conveyance including a frame 63 provided with a suction cup 62 for adsorbing each decomposed mesh document film, and a frame 64 provided with a motor or the like (not shown) for vertically moving the frame 63 A unit 61 is provided. Further, the polygonal cylindrical body 23 provided around the light source lamp 22 is provided with an ND filter in addition to the blue (B), green (G), and red (R) filters 24.

A developing machine 4 to which the exposed photosensitive material is supplied is arranged on the exit side of the color proof making apparatus adjacent to the main body frame 3. The developing machine 4 is of a type in which a photosensitive material is conveyed by rollers or the like, and is configured to include a developing section, a fixing section, a stabilizing section, a drying section and the like. Next, the operation according to the configuration of the present invention will be described.

Document tray 4 for Y plate as document placing means
2. Disassembled mesh original films of Y plate, M plate, C plate and black plate are respectively placed on the M plate original tray 43, the C plate original tray 44 and the black plate original tray 45. At this time, each disassembled mesh original film is placed in a state of being positioned at a predetermined position by the positioning pin 46 provided on each of the trays 42 to 45.

First, a Y-plate decomposed halftone original film is exposed. That is, the document tray 42 for the Y plate is the document transport unit.
It slides under the frame 63 of 61 and stands by at that position (see FIG. 2). Then, the frame 63 is moved downward by the motor arranged on the frame 64 to suck the Y-plate disassembled mesh original film placed on the Y-plate original tray 42.
After adsorbing by 62, it rises again and stops at a predetermined position. After that, the Y plate original tray 42 returns to the original position from below the frame 63 (see FIG. 3). Then, the frame 63 moves downward while adsorbing the Y-version decomposed mesh original film by the suction cup 62, and places it on the upper surface 12 of the original table 13 so that the holes formed in the original film are fitted into the pin bars 11. The frame 63 retracts upward after the chuck 62 releases the suction.

That is, each of the trays 42 to 45 and the original feeding unit 61 accurately puts the respective separated mesh original films into the original table 13
Can be supplied to the original document feeding means, and the document feeding function of the document feeding means can be achieved. Then, after stacking the photographic photosensitive material placed on the photosensitive material placing table 18 under the original film conveyed and supplied by the original conveying unit 61, the light shielding cover 15 is closed and at the same time, the transparent cover is formed on the original film. The sheet is covered (see FIG. 4), the original film and the photographic light-sensitive material are brought into vacuum contact with each other via the cover sheet, and then exposure printing is performed by the exposure device 21 from the cover sheet side.

When the photosensitive material is conveyed to and placed on the photosensitive material mounting table 18, the photosensitive material is held until it starts to be conveyed to the developing device 4. When the color exposure of the Y plate separated mesh original film is completed, the photosensitive material mounting table is covered with a light-shielding curtain in order to perform the second exposure with the filter of another color.
Then, when the light-shielding cover 15 is opened, the first chamber becomes a bright chamber, but the second chamber is light-tight with respect to the first chamber and forms a dark chamber.

Then, after the frame 63 has moved downward and the Y-plate disassembled mesh original film has been sucked by the suction cup 62,
When it rises again and stops at the specified position, the original tray for the Y plate
42 slides to below the frame 63 of the document transport unit 61, receives the Y-plate decomposed mesh document film from the chuck 62, and the Y-plate document tray 42 returns to the original position from below the frame 63.

In other words, the document feeding unit 61 performs the document collecting function of the document feeding means. When the color exposure of the separated halftone original film of the Y plate is completed by the operation described above, the color exposure of the separated halftone original film of the M plate, the C plate and the black plate is performed respectively in the same manner as above. That is, when the photosensitive material is supplied to the developing device 4 and the next photosensitive material is supplied onto the exposure table, the plate set is automatically supplied and collected again sequentially from the first plate.

After the exposure and printing of all kinds of decomposed mesh original films, the photosensitive material is supplied to the developing machine 4 and automatically developed. That is, the developing device 4 from the main body frame 3 serves as a photographic photosensitive material supply means by means of rollers for supplying a photosensitive material. A desired number of color proofs can be obtained by repeating the above-described operations of the document transport unit 61 and the like set a plurality of times by the operator.

That is, according to the color proof making apparatus 1 of the first embodiment, the document placed on the Y plate document tray 42 or the like is automatically supplied to the exposure section by the document transport unit 61 or the like, After being exposed, it will be automatically recovered. Therefore, when making a plurality of color proofs, the operator does not have to set the document on the document placing means at first, and the work time can be greatly reduced. ..

5 to 8 show a second embodiment according to the present invention. The same components as those of the first embodiment shown in FIGS. 1 to 4 are designated by the same reference numerals and the description thereof will be omitted. In the figure, a color proof creating device 5 is also a device for obtaining a color proof by using each separated half original film which is color-separated into Y plate, M plate, C plate and black plate.

As a structure according to the present invention, a document tray as a document placing means for placing different types of document films on the upper part of the main body of the color proof making device 5, and a document placed on the document tray. A document feeding unit 71 having a suction cup 76 for feeding a film to the document table 13 is provided. Here, the document trays are a Y plate document tray 72, an M plate document tray 73, and a C plate document tray 74 on which separate mesh document films of Y plate, M plate, C plate, and black plate are placed.
Are provided, and each is provided so as to be slidable in the front-back direction. Further, each of the trays 72 to 74 is also provided with a positioning pin 75 which is inserted into a document positioning hole (a hole into which the pin bar 11 is inserted) provided in the document film, and each document has a predetermined size. Is placed in the position.

Next, the operation of the structure of the second embodiment will be described. The Y plate and the M plate are respectively provided on the Y plate document tray 72, the M plate document tray 73, and the C plate document tray 74 as document stacking means.
Disassembled mesh original films of the plate and the C plate are placed. At this time, each disassembled mesh original film is placed in a state where it is positioned at a predetermined position by the positioning pin 76 provided on each tray 72 to 74.

First, the Y-plate disassembled halftone original film is exposed. That is, the suction cup 76 of the document transport unit 71 moves above the Y-plate document tray 72, sucks the Y-plate disassembled mesh document film placed on the Y-plate document tray 72, and positions the pin for positioning. Remove from 75 (see Figure 6). Then, the original conveyance unit 71 slides in the sucked state and moves downward so as to avoid the exposure device 21 (see FIG. 7). The disassembled mesh original film of the Y plate is moved to the side while being sucked by the suction cups 76, and is placed on the upper surface 12 of the original table 13 so that the holes formed in the original film are fitted into the pin bars 11. After the suction cup 76 releases the suction, the original transport unit 71 returns to the initial position.

That is, each of the trays 72 to 74 and the original document transport unit 71 accurately disposes each disassembled mesh original film on the original platen 13.
And the function of the document supply unit is achieved. Then, after the photographic photosensitive material placed on the photosensitive material placing table 18 is placed under the original film conveyed and supplied by the original conveying unit 71, the exposure device 21 performs exposure printing.

When the photosensitive material is conveyed and placed on the photosensitive material mounting table 18, the photosensitive material is held until it is conveyed to the developing machine 4. When the color exposure of the separated halftone original film of the Y plate is completed by the operation described above, the M plate and the C plate are then exposed.
Color exposure of the separated halftone original film of the plate and the black plate is performed in the same manner as described above. That is, when the photosensitive material is supplied to the developing device 4 and the next photosensitive material is supplied onto the exposure table, the plate set is automatically supplied and collected again sequentially from the first plate.

After the exposure and printing are performed on all kinds of decomposed mesh original films, the photosensitive material is supplied to the developing machine 4 and automatically provided for development. That is, the developing device 4 from the main body frame 3 serves as a photographic photosensitive material supply means by means of rollers or the like for supplying a photosensitive material. It is possible to automatically obtain a desired number of color proofs by the document transport unit 71 and the like repeating each operation described above only a plurality of times set by the operator.

Therefore, also in the color proof making apparatus 5 of the second embodiment, the same effect as that of the first embodiment can be obtained.

[0040]

As described above, according to the color proof making apparatus of the present invention, a predetermined original selected from the originals placed on the original placing means is automatically supplied to the exposure section, Since the system automatically collects after exposure, it is possible to automatically obtain the desired number of color proofs by repeating each means multiple times set by the operator. The work process performed by the operator when making a plurality of sheets does not have to be complicated because all that is required is that the manuscript is first set on the manuscript placing means, and the working time can be greatly shortened. Therefore,
Merchandise is also improved.

[Brief description of drawings]

FIG. 1 is a schematic assembly view showing a first embodiment of a color proof making apparatus according to the present invention.

FIG. 2 is a schematic side view illustrating the operation of the above embodiment.

FIG. 3 is a schematic side view illustrating the operation of the above embodiment.

FIG. 4 is a schematic side view illustrating the operation of the above embodiment.

FIG. 5 is a schematic assembly diagram showing a second embodiment of the color proof making apparatus according to the present invention.

FIG. 6 is a schematic side view illustrating the operation of the above embodiment.

FIG. 7 is a schematic side view illustrating the operation of the above embodiment.

FIG. 8 is a schematic side view illustrating the operation of the above embodiment.

[Explanation of symbols]

 1 Color Proof Making Device 3 Main Frame 4 Developing Machine 5 Color Proof Making Device 11 Pin Bar 13 Document Plate 21 Exposure Device 22 Light Source Lamp 42 Y Plate Original Tray 43 M Plate Original Tray 44 C Plate Original Tray 61 Document Transport Unit 62 Sucker 71 Original transport unit 72 Original tray for Y plate 73 Original tray for M plate 74 Original tray for C plate 76 Sucker

Claims (1)

[Claims] 1. A color proof making apparatus for exposing and printing a photographic light-sensitive material under an original on an exposure table, and then exposing the original and the light-sensitive material to each other in vacuum. Placement means, document conveying means for automatically supplying and recovering a predetermined document selected from the documents placed on the document placing means to the exposure section, and the supplied document on the photographic photosensitive material. An apparatus for producing color proof, comprising: an exposure printing means for printing; and a photographic photosensitive material supplying means for supplying the photographic photosensitive material subjected to the exposure printing to an automatic developing machine.