JPH0571940B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is a method for exposing at least one color separation mesh original to light by placing it accurately in a predetermined position and overlapping it with one positive or negative photosensitive material. After that, only the color separation mesh original is replaced, and a predetermined number of original images are printed on one sheet of photosensitive material by exposing each time the color separation mesh original is replaced (hereinafter referred to as multiple exposure). This invention relates to a color proof production device for producing copies with the same printed finish. As mentioned above, this color proof production device is effective in exposing both monochrome and color photosensitive materials, but it is particularly effective in the process of turning printing plate film, which requires multiple exposures, and in copying color images with the same color scheme as the printed finish. A means for directly inspecting the presence or absence of abnormalities in color separation net manuscripts for making printing plates,
It is effective as a contact exposure device, etc. when creating a poster using a color photosensitive material using the color separation mesh original.

[Conventional technology]

Conventionally, in the field of printing plate making, a large amount of film is used in the process of creating a printing plate consisting of an image consisting of halftone dots from continuous tone images such as reversal film, color negative film, and paper. In particular, I am doing things like compositing images. As a result, the work becomes complicated and a large number of mistakes occur, such as mistakes in characters and layout. Furthermore, since the client (orderer) requests text changes, layout changes, color changes, etc., it is easy to forget to make changes. It is also necessary to check in advance whether the printed matter will be finished in the desired color tone and gradation. These are collectively called proofreading.

For this reason, various systems including trial printing called proof printing have been announced and sold for the purpose of these checks. Examples include those that use CRT, those that use non-silver salt photosensitive materials such as photopolymers and diazo, those that form images with dry toner, and electrophotographic methods. However, these calibration systems generally require a long time to calibrate one sheet, and have problems such as high material cost and poor workability, and have not been a system that is sufficient for practical use.

On the other hand, another method for obtaining a proof is to print a color separation mesh original onto a color photosensitive material using color-separated light. For example, JP-A-62-280746, JP-A No. 62-280746;
-280747, 62-280748, 62-280749,
No. 62-280750, No. 62-280849, No. 60-42760
No. 1, etc. describes a method of obtaining a proof material (color proof) on a color photosensitive material using a photographing system using a projection lens. Although these devices are large, they are so-called "bright room specifications" that allow work to be carried out in a normal room, and the exposure operation can be performed in a dark room while the photosensitive material itself remains inside the device. It can be done under normal light. Therefore, it is possible to perform color calibration easily, in a short period of time, and at low cost, and has superior characteristics to other calibration systems. However, since it is a photographic system, effects such as lens flare occurred, and there was a deterioration in gradation reproducibility. That is, due to flare etc., the small dots of the net tended to fly off, and the large dots tended to collapse.

On the other hand, Chesley
The Carlson from F. Carlson Company
From Proofmaster System, Kreonite, Inc.
There is an enlarger-type contact exposure method sold under the name Color Proofing Sustem. Since these methods expose a color-separated original in direct contact with a color photosensitive material, the gradation reproducibility is greatly improved compared to the photographic method. On the other hand, since color photosensitive materials have a photosensitive region in the entire visible range, they have the disadvantage that they cannot be handled in a bright room and are forced to be groped for work in a dark room.

In addition, since there is no special suction means or suction auxiliary means to assist in vacuum adhesion between the photosensitive material and the color separation screen original, there is a drawback that it tends to cause unevenness in parts and impair gradation reproducibility and color reproducibility. had.

In addition, a contact exposure device that is normally used in the return process has a transparent glass on a part of the table, and the color separation mesh original and the photosensitive material are stacked on top of the transparent glass, and a cover sheet, etc. is placed on top of the transparent glass. A suction auxiliary member is placed on the table, and the suction auxiliary member, the color separation screen document, and the photosensitive material are suctioned through a suction groove provided in a part of the table, and contact exposure is performed from the transparent glass side.

In the return process using such a contact exposure device (color proofing device), usually dozens of color separation mesh originals are exposed multiple times to each photosensitive material, one to several sheets at a time. When changing color separation mesh originals, the photosensitive material must be removed each time, and even if alignment pins called pin bars are used, the operator still needs to be careful in order to achieve multiple exposures with high alignment accuracy each time. It had drawbacks.

[Problem that the invention seeks to solve]

When exposing the same photosensitive material to the color separation mesh original of each printing plate, it is preferable to use an apparatus that performs exposure while bringing the color separation mesh original and the photosensitive material into close contact with each other from the viewpoint of reproducibility of halftone dots, color tone, and gradation.

However, in the contact exposure apparatus (color proof production apparatus) as described above, the operating procedure when performing multiple exposure of the color separation mesh original of each printing plate on the same photosensitive material twice is as follows.

First step: A first color separation mesh original is placed on a transparent glass, a photosensitive material is placed on top of the first color separation mesh original, and the material is vacuum-adhered and exposed from the transparent glass side.

Second step: When exposing the same photosensitive material using the second color separation mesh original, the first color separation mesh original and the photosensitive material are removed from the transparent glass.

Third step: Place the second color separation mesh original on transparent glass, place the photosensitive material used in the first step on top of the second color separation mesh original, and vacuum-adhere it to the transparent glass. Expose from the side.

(When performing multiple exposures of three or more times,
Repeat the third step. ) Therefore, when performing multiple multiple exposures, it is necessary to remove the photosensitive material from the color proofing device, replace the color separation mesh original, and place the photosensitive material on the glass, which reduces the work time. It had the disadvantage of being bad.

In addition, there is a suction groove in a part of the stand, so
Another drawback was that it was clogged with dust such as chips from photosensitive materials.

In order to solve the problem of poor workability, which is a problem with conventional contact exposure devices, the present invention provides high positional accuracy and enables multiple exposures on the same photosensitive material by simply converting the color separation mesh original. It is an object of the present invention to provide a color proof production device having a contact exposure device.

[Means for solving problems]

An object of the present invention is to bring the color separation mesh originals into close contact with a color photosensitive material each time different color separation mesh originals are exchanged, and to expose images of a predetermined number of color separation mesh originals onto the color photosensitive material. A color proof producing apparatus comprising: a photosensitive material mounting table on which the color photosensitive material is placed; and a positioning means for positioning the color separation mesh original with respect to the color photosensitive material placed on the photosensitive material placement table. a light-sensitive material fixing means for forming a suction-fixed state between the color photosensitive material placed on the photosensitive material mounting base and the photosensitive material mounting base; an original adhering means for forming a tightly fixed state between the color separation net original and the color photosensitive material suctioned and fixed to the photosensitive material mounting table by suctioning a covering light-transmitting cover sheet; an exposure means for printing and exposing the image of the color separation mesh original onto the color photosensitive material from above the color separation mesh original; At the same time, the color photosensitive material fixing means is controlled to maintain the suction fixed state between the color photosensitive material and the photosensitive material mounting table, and when the color separation screen document is replaced, the color separation screen document and the color photosensitive material are a control means for controlling the document adhering means so as to be able to release the closely fixed state with the material and to form a closely fixed positioning state between the color separation net document and the color photosensitive material during printing exposure; This is achieved by a color proof production device characterized by having the following features.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A color proof producing apparatus according to an embodiment of the present invention will be explained with reference to a front view in FIG. 1, a side view in FIG. 2, and a top view in FIG. 3. However, the present invention is not limited to this example.

Before creating the actual printing plate using each printing plate color-separated into C, M, Y, and black plates, the color proofing device checks whether there are any errors in the layout of the color-separated manuscript and whether the colors are incorrect. This is a device for inspecting whether there are any errors or errors in characters, etc., and it positions the color separation net document one by one, overlays it on a color photosensitive material, and multiple contact exposures to produce a color photograph in the same condition as the printed matter. The system was created so that errors in the printed version of the manuscript could be detected and actions taken to revise the manuscript in advance.

The creation device 100 has an upper surface 141 and a lower surface 14 for installing a document positioning pin bar 143 on the upper side of a main body frame 101 supported by legs 102.
2, and a light-shielding cover 120 that can be freely opened and closed is provided on the upper part of the document table 140, which enables formation of a dark room as a first chamber.

Further, an exposure section 300 for scanning and exposing the contact exposure surface of the document table is provided in the first chamber. The exposure section 3
At the center of 00 is a singular or plural number (3 in the example).
) Tubular light source lamps 302A, 302B, 30
2C is provided surrounded by a drum-shaped internal reflecting mirror 306 fixed to a housing 316 and a transmission window 304. And the reflecting mirror 306 and the transmitting window 304
A polygonal tube 301 is rotatably provided outside the exposure section 300 concentrically with filters such as B, G, R, and ND arranged on each tube surface, and the filter surface and the transmission window 304 are arranged concentrically at the center of the exposure section 300. It is made to face the close exposure surface. A housing 316 is provided outside the polygonal tube 301 and includes a shielding plate 308, a solenoid 312 for operating the shielding plate, a return spring 314, and an exposure window 310. As shown in FIG. 3, the exposure section 300 includes rails 317A,
317B so that it can run for scanning.

A photosensitive material mounting section 200 is provided inside the main body frame 101 as a second chamber. The sensitive material mounting table 201 is driven by a motor 214 and is configured to be movable up and down.

On the other hand, an endless light-shielding belt 242 is used as a light-shielding member on rollers 241, 242A, 243, 24.
4, 1/2 of its length is a complete light-shielding curtain, and approximately at the center of the 1/2 length that follows it, there is a screen with a size that is at least larger than the cross section of the moving area of the photosensitive material mounting table. The exposure window is open. In such a light-shielding member 240, the light-sensitive material mounting table 201 is housed by the light-shielding belt 242 running on a surface slightly lower than the lower surface 142 of the document table, that is, the boundary area between the first chamber and the second chamber. The second chamber can be switched between forming and releasing the light tightness with respect to the first chamber.

In this embodiment, an endless light-shielding belt 242 is used as the light-shielding member 240, but if the purpose is only to light-shield a photosensitive material, other members of a size that can shade the second chamber may be used instead of the endless belt member. It's okay.

Further, a long roll 402 of color photosensitive material is loaded into a magazine 401 to form a photosensitive material loading section 400. Line up and wait. Further, the tip is fed to the left end of the fixed base 527 by the pinching roller 511, and the tip is sucked by the suction cup 523, and the traveling head 522 having the suction cup 523 moves the rollers 525, 526 to the traveling rails 52 on both sides.
1, it moves to a position where a predetermined length of the photosensitive material is measured and stops. The photosensitive material is cut with a cutter 510 and further moved so that the leading end of the photosensitive material is located at a predetermined position on the photosensitive material mounting table 201. After tightening the suction of the suction cup 523 of the traveling head 522, the traveling head 522 returns to its original position.

Here, solenoids 535 are attached to the traveling head 522 via brackets 534 on both sides.
A frame 531 is fixed to the movable core 536. The traveling head 522, the frame 531
A suction cup holding pipe 537 to which a suction cup 523 connected to a hose 524 is attached is provided to pass through a guide hole bored in the head and frame, and is fixed to the frame in the thrust direction. is slidably installed along the hole and connects the traveling head 522 and the frame 531.
It floats above the exposure table surface via a helical spring 532 inserted between the two. and the solenoid 5
35 is energized and a suction valve (not shown) is opened, the suction cup 523 descends and adsorbs the photosensitive material 402. Thereafter, by de-energizing the solenoid 535, the suction cup 523 lifts up the photosensitive material 4.
02 is transported.

In this manner, the photosensitive material 402 is transported and placed on the photosensitive material mounting table 201. The photosensitive material 402 is fixed on the photosensitive material mounting table 201 by driving the vacuum pump 204A via the flexible hose 205.
Suction pressure is applied to the suction hole drilled in the upper part, and the photosensitive material is tightly fixed onto the photosensitive material mounting table 201. This tightly fixed state is maintained until multiple exposures are completed and the photosensitive material begins to be transported to the developing section.

Also, in this state, the light shielding belt 242 is
Since the light-shielding position is set, the second room where the photosensitive material mounting table 201 is located remains in a state where a dark room is formed.

Here, with the upper light-shielding cover 120 opened and the first chamber brightened with outside light, a color separation mesh original (black version and YMC version) is attached to a resist pin (pin bar) 143 as a positioning means placed on the upper surface part 141. A reference hole is inserted into one of them (for example, Y version, or a plurality of sheets or all of them), and most of the color separation mesh original is placed on the light-shielding belt.

In this state, close the light-shielding cover 120 to make the first room a dark room and make it light-tight. After raising the sensitive material mounting table 201 slightly below the surface of the light-shielding curtain belt 242, move the light-shielding curtain belt 242 to open it. . Then, in a state where the first chamber with the upper surface of the document table 140 and the second chamber with the photosensitive material mounting table 201 become a common dark room, the photosensitive material placing table 201 is raised to match the exposure surface, that is, the original reference surface. At this time, the airtight bag 201c provided on the abutment surface around the photosensitive material mounting table in the second chamber comes into close contact with the lower surface 142 of the document table 140 in the first chamber, and the surface of the photosensitive material mounting table 201 that fits into the opening. Creates a suction channel groove (suction groove) 204
In addition, airtightness between the color separation mesh original and the photosensitive material sandwiched between the original table surface, the photosensitive material mounting table surface, and the transparent cover sheet is maintained.

The transparent cover sheet 275 is wound into a roll around the shaft 273 to become a transparent cover sheet roll 274, the tip of which passes through a squeeze roller 276.
Cover sheet device 27 fastened with stopper 272
The cover sheet 275, which is unwound from the cover sheet roll 274 as the head 271 of No. 0 is guided by the rails 281A and 281B and moved to the right in FIG. It is squeezed by the squeeze roller 276 and covered with the color separation mesh original and the photosensitive material, and when the head reaches the right end, the vacuum pump 206 as a pressure reducing device is activated and the suction hole 201f made in the photosensitive material mounting table 201 is activated. The air is sucked through the suction hose 207 connected to the flow path groove (suction groove) 204, that is, the suction groove for sucking the air between the transparent cover sheet, the color separation screen document, and the photosensitive material. The air present between the upper surface of the material placement table and document table and the cover sheet is sucked, and the photosensitive material, each color separation mesh document, and the cover sheet are stacked and held in a flat shape. That is, the transparent cover sheet is used as an auxiliary material for bringing the color separation mesh original into close contact with the photosensitive material. However, the suction hole 201f may be a hole drilled in the document table 140. Also, squeeze the transparent cover sheet, and
The timing of positioning and suction in step 1 does not have to follow the above order.

As shown in FIG. 4, at this time, the abutment surface 201b is adjusted so that the upper surface 141 of the document table 140 and the upper surface 201a of the photosensitive material mounting table 201 are approximately on the same plane.
The dimensional relationship between the airtight bag 201c attached thereto and the lower surface 142 of the document table 140 is adjusted. By doing this, air can smoothly flow between the transparent cover sheet and the document table and the photosensitive material mounting table from the flow groove (suction groove), and the cover sheet, the color Correct planar contact between the original and the photosensitive material is achieved.

By the way, in the color proof production apparatus of the present invention in which the film document table and the photosensitive material mounting table are relatively movable, when the suction groove 204 is provided in the document table and the photosensitive material placing table, the positioning means for the color separation screen document is used. A first configuration in which a suction groove is provided between the photosensitive material and the photosensitive material, and a second configuration in which a suction groove is provided on the outside of the color separation screen document positioning means for the photosensitive material are conceivable.

However, in the first configuration, it is necessary to have a certain distance between the positioning means for the color separation mesh original and the photosensitive material in order to process and form suction grooves. The distance between them increases, and as a result,
A problem arises in that the pattern on the color separation mesh original near the color separation mesh original positioning means may not be printed onto the photosensitive material.

On the other hand, in the second configuration, since the color separation mesh original positioning means obstructs suction, there arises a problem that air in the center of the color separation mesh original is difficult to escape.

The embodiment of the present invention shown in FIG. 2, FIG. 3, and FIG. Air in the center of the separation screen original is easily removed, and although there is a suction groove 204 between the photosensitive material and the color separation screen original, there is no pre-existing groove, so the separation between the color separation screen original positioning means and the photosensitive material is difficult. As the distance becomes shorter, the image on the color separation mesh original near the color separation mesh original positioning means is also completely printed onto the photosensitive material.

In this state, the exposure section 300 runs on the guide rails 317A and 317B to perform scanning exposure, and the first color exposure using the filter is completed.

Next, in order to perform a second image exposure using a color separation mesh original of a different color and a filter of a different color, the transparent cover sheet is returned to its original position and the photosensitive material mounting table 201 is moved slightly below the travel path of the light-shielding belt 242. When the air is blown into the flow path groove (suction groove) 204 by blowing air through the nozzle 215 or by switching the blowing side of the vacuum pump 206 to blow air into the flow path groove (suction groove) 204 and then closing the light-shielding belt 242, the color changes. Although the separation mesh original and the photosensitive material can be easily and completely separated, the present invention is of course not limited to this. When the light-shielding cover 120 is opened, the first room becomes a bright room, but the second room is light-dense compared to the first room, forming a dark room.

In this state, the second color separation mesh original (black version and Y,
After setting one of M or C (for example, M plate, or a plurality of sheets or all of them) on the resist pin and covering it with the light-shielding cover 120, the light-shielding belt 242 is opened and the photosensitive material mounting table 201 is placed on the document table surface. Then cover the cover sheet 275 again and apply suction to bring each sheet into close contact.The polygonal tube 301 is rotated to face the tube surface provided on another filter, and scanning contact exposure is performed using a second color filter. The second exposure is completed.

Similarly, the third color separation mesh original (black version and Y,
Exposure using either one of M or C (for example, C plate or a plurality of sheets or all of them) and the corresponding filter is performed in the same procedure to complete the third exposure.

Furthermore, in the configuration of a conventional contact exposure device, the photosensitive material was temporarily removed from the contact exposure device together with the color separation mesh original during multiple exposures, resulting in unstable positioning of the photosensitive material, but in the present invention, As in the embodiment shown in FIG. 4, since the structure is such that the photosensitive material is sucked and fixed to the photosensitive material mounting table and the photosensitive material mounting table and the document table are separated, when replacing the color separation mesh original,
Since the photosensitive material does not leave the photosensitive material mounting table,
The positional accuracy of the photosensitive material is improved.

Finally, the photosensitive material device table is lowered to the lowest position, the suction is released to release the photosensitive material, and the leading end of the photosensitive material is fed to the nipping roller 552 by a device (not shown).

The photosensitive material whose tip has reached the nipping roller 552 is guided by the guides 561 and 56 of the conveyance chute section 550.
2,563,564,565 and switching chute 5
66 and guide rollers 552, 553, 554,
555, 556, the guide 5 is moved downward by the switching chute 566 around the pivot shaft 568, with the rear end leading up to the guide 5.
64, 565, 567, and 568 by guide rollers 556, 557, 558, and 559, and sent to the development processing section 600. While being transported through the color developing tank 601, the second exposure section 350
An exposure box 356 consisting of an exposure lamp 351, a filter device 352, reflectors 353, 354, and an exposure window 355 allows fogging exposure to be performed. Then, it passes through a bleach-fixing tank and a stabilizing tank, and is transferred to a drying section 680 by conveying rollers 681 and 68.
At step 2, the photosensitive material is slowly transported and dried, and the developed photosensitive material is collected at the right end of the apparatus.

Note that the exposed photosensitive material is transferred to the conveyance chute section 55.
The following steps are repeated as described above, in which the subsequent photosensitive material is conveyed onto the photosensitive material mounting table 201, measured and cut by the cutter 510, and then set in close contact with each other.

When using an internal latent image type direct positive photosensitive material, a second exposure is necessary, but when using a negative color photosensitive material, the second exposure is not necessary and the light is left off.

Of course, regarding exposure to direct positive photosensitive materials, black plates are overlaid on each Y, M, and C color separation mesh original, and B, B, and Y plates are used for the Y and black plates.
The M plate and the black plate are exposed to light three times, and the C plate and the black plate are exposed to the R filter three times. The M and C versions of the color separation dotted originals were layered individually, and the Y version was exposed with a B filter, the M version with a G filter, and the C version with an R filter, and exposed three times, and then the black version was layered the fourth time. The image is exposed using an ND filter.

In addition, the exposed photosensitive material should be removed from the guide shoot 5 once.
65, turn over, and enter the developing device with the emulsion side facing up. However, since it cannot enter the guide chute 565, it can be turned around and put into the developing device, but if the light-fogging internal latent image type direct When using a positive photosensitive material, the light source position for the second exposure must be installed from above the developing device to below the photosensitive material transport path, which makes maintenance and installation somewhat difficult, and there is an exposure window on the side of the developer tank. This is not very preferable because it requires opening the container, making it difficult to clean up leaks.

There are two types of photosensitive materials: those with high sensitivity and those with low sensitivity.
It is also possible to provide a plurality of lights 02 and turn on a large number of lights to make the exposure more powerful.

In addition, by using the measures of lowering the scanning speed and the measures of making the opening/closing of the exposure window 310 variable, in combination or alone, it is possible to perform high-quality exposure without worsening the reciprocity law failure condition.

Although the above embodiments were explained using a full-color photosensitive material, the present invention is not limited thereto. Further, the color proof production device as used in the present invention may be a device including only a contact exposure device.

〔Effect of the invention〕

According to the present invention, in the color proof production device that performs exposure from the color separation mesh original side, multiple exposures can be made to the same photosensitive material multiple times by simply changing the color separation mesh original without removing the photosensitive material from the color proof creation device. became possible, improving work efficiency.
Furthermore, there is an excellent effect of improving the positional accuracy of the photosensitive material.

Furthermore, according to the present invention, a suction groove is formed between the document table and the photosensitive material mounting table for closely suctioning the color separation net document and the photosensitive material during close exposure. Since the color proof producing apparatus of the present invention does not have a suction groove, the suction groove is not clogged with dust. Furthermore, the air in the center of the original can be easily evacuated, and the image on the film original near the color separation mesh original positioning means can now be completely printed onto the photosensitive material.
Further, since the document table and the photosensitive material mounting table are not provided with suction grooves independently, there is an excellent effect that processing such as molding of the document table and the photosensitive material placement table is facilitated.

In addition, operations such as contacting, positioning, and converting originals during multiple exposure of color separation mesh originals on each printing plate to photosensitive materials can now be performed quickly and reliably in a bright place. Images equivalent to printed matter can be formed without damaging the original or the photosensitive material, and it has become possible to accurately inspect each color separation mesh original. It has now become possible to easily create posters using color photosensitive materials using these color separation mesh originals.

[Brief explanation of the drawing]

FIG. 1 is a front view of the color proof production apparatus of the present invention. FIG. 2 is a side view of the color proof production device of the present invention. FIG. 3 is a top view of the color proof production device of the present invention. FIG. 4 is a side sectional view showing the positional relationship between the document table and the photosensitive material device table. 100...Color proof creation device, 120...
... light-shielding cover, 140 ... document table, 141 ... top surface, 142 ... bottom surface, 143 ... resist pin (pin bar) as positioning means, 200 ... sensitive material mounting section, 201 ... sensitive material mounting table, 201a...
Upper surface, 201b...Abutment surface, 201c...Airtight packing, 204...Suction channel groove (suction groove), 215...Nozzle, 240...Light shielding member,
242...Shading curtain belt, 270...Cover sheet device, 275...Cover sheet, 300...Exposure section, 350...Second exposure section, 400...Sensitive material loading section, 510...Sensitive material cutting section ( Katsuta), 520
...Sensitive material conveying section, 550...Sensitive material conveying chute section, 600...Development processing section, 680...Drying section.

Claims (1)

[Claims] 1. Every time different color separation mesh originals are exchanged,
In a color proof production device that brings the color separation mesh original and a color photosensitive material into close contact with each other and exposes images of a predetermined number of color separation mesh originals onto the color photosensitive material, a photosensitive material holder on which the color photosensitive material is placed; A stand and
positioning means for positioning the color separation mesh original with respect to the color photosensitive material placed on the photosensitive material mounting table; A light-transmissive cover sheet covering the color separation mesh original and the color photosensitive material is suctioned by a sensitive material fixing means that forms a suction-fixed state with the material mounting table, and the color separation mesh original and the color separation mesh original and the color photosensitive material are suctioned. an original adhering means for forming a tightly fixed state with the color photosensitive material suction-fixed to the material mounting table; and an image of the color separation mesh original onto the color photosensitive material from above the light-transmissive cover sheet. an exposure means for performing printing exposure, and a device configured to maintain the suction and fixed state of the color photosensitive material and the photosensitive material mounting table from at least the time of exposure of the first color separation mesh original until the completion of a predetermined number of exposures. The light-sensitive material fixing means is controlled in such a manner that the color separation mesh original can be released from the closely fixed state between the color separation mesh original and the color photosensitive material when the color separation mesh original is replaced, and the color separation mesh original is controlled during printing exposure. A color blueprint creating apparatus comprising: a control means for controlling the document contacting means so as to form a fixed positioning state in which the document and the color photosensitive material are in close contact with each other.