JPS641784B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, when printing books, catalogs, etc., it has been common practice to print images for a plurality of pages at once. In such a case, a printed matter containing multiple pages is folded by a folding machine so that each page is in the correct order. By the way, in order to ensure that each page is in the correct order when printed matter is folded by a folding machine, the images of each page formed on the printing plate are arranged in predetermined positions. It is necessary.

FIGS. 1 to 3 are for explaining an example of how to arrange the images of each page when printing 16 pages at a time. In addition, in the diagram, pages where the numbers indicating the arrangement of images on each page are displayed upside down, the images are also arranged upside down, and pages where the numbers are displayed correctly upside down, the images are also arranged upside down. This shows that they are arranged correctly. Figure 1 shows multiple pages of images (P1), (P2), (P3)...(P16).
A state in which they are arranged on two sheet-like base materials 20 and 21 is shown. On the sheet-like base material 20, pages to be printed on the front side are arranged, and on the sheet-like base material 21, pages to be printed on the back side are arranged. For simplicity, transparent plastic films are used as the sheet-like base materials 20 and 21 in FIG. We will proceed with the explanation by taking as an example the case of an imprinted film for printing, but the present invention is not limited to this.
For example, the sheet-like base material may be a PS plate for offset printing, and the images (P1) to (P16) may be images formed on the PS plate.

2 sheets of imprinted film for printing, on which the images of each page are arranged as shown in Figure 1 a and b.
A printing plate is created and used to print on both sides of paper or other printing material. FIG. 2 shows a printed matter 22 printed by the offset method, and the numbers attached to the printed matter 22 indicate the pages indicated by each number, and the numbers without brackets are printed on the front of the printed matter 22. Each page is shown, and the numbers shown in brackets indicate each page printed on the back side of the position where each number is arranged. That is, the 16th, 1st,
Pages 4, 13, 9, 8, 5, and 12 are each printed on the front and arranged in the positions indicated by the corresponding numbers. Also, the 15th, 2nd, 3rd, 14th, 10th,
Pages 7, 6 and 11 are each printed on the back and are arranged in the positions indicated by the corresponding numbers. Here, too, where the numbers indicating each page are upside down, this indicates that the printed image is also upside down.

The printed matter 22 thus obtained is shown in FIG.
By folding along the line, then along the B-B line, and finally along the C-C line, each page from page 1 to page 16 is in the correct order as shown in Figure 3. Old signature 2
3 is obtained.

The signature obtained in the above manner is combined with other signatures as necessary, the side of the folded part along the C-C line is used as the binding part, and the ends of the other sides are cut. You can open each page by doing this. Figures 4a-i thus show how each page looks when opened and viewed.

As is clear from Figure 4, the book obtained in the above manner is designed to be read from the left page.
This is used in English books and horizontally written Japanese books.

Contrary to the case in Figure 4, in the case of a vertically written Japanese book, the page is read from the right page, and in this case, the images on each page are arranged as shown in Figure 5 a and b. After printing, folding, and cutting, each page can be opened and viewed as shown in FIGS. 6a to 6i.

As can be understood from the above explanation, when printing multiple pages of images (characters, pictures, etc.) at once, an imposition film or an imposition printing plate (Fig. 1, 5
At the stage of creating the image (see figure), it is necessary to check whether the images on each page are correctly arranged at predetermined positions. However, this test includes quite complex elements. That is,
Where to arrange the images of each page on the sheet-like base material depends on (a) how many pages to print at once, and (b) whether the book is to be read from the right or from the left. (c) It depends on the type of folding method used.

Therefore, it is very difficult to imagine whether or not the pages will be in the correct order after folding based on the state in which the images of each page are arranged on the sheet-like base material. For this reason, even if the images on each page are arranged in the wrong position, it is difficult to detect the error, and printing plates are prepared, printed, and
Sometimes I end up doing bookbinding. Therefore, in such a case, not only all the materials are wasted, but also a huge amount of time is wasted.

The present invention was made as a result of various researches to solve the various problems mentioned above, and it is possible to quickly check whether or not the arrangement of pages is correct, which has been considered difficult in the past. The purpose is to provide a method that can be easily carried out in the state of a printing plate.

Furthermore, the present invention seeks to provide a novel device for carrying out the above-mentioned test.

Furthermore, the present invention seeks to provide a novel device for carrying out the above-mentioned test.

According to the present invention, images of each page arranged on a sheet-like base material are photographed using a photographing device, for example, a television camera, in a predetermined combination of two pages, and the images for one signature (the Taking the case of FIG. 7 as an example, the images of each page arranged on the sheet-like base materials 20Bk and 21Bk are subjected to predetermined processing and displayed on an image display device (for example, a monitor television, etc.).

The predetermined process is a process in which the order of each page is easily determined by looking at the image displayed on the image display device when a signature is produced according to a pre-specified folding method. The goal is to be able to make decisions. In this case, in addition to the folding method, it is necessary to specify in advance data such as the number of pages and how the book is opened (right or left).

Next, the present invention will be explained in more detail with reference to the drawings.

FIG. 8 is an explanatory diagram of two television camera drive mechanisms as a photographing device driving mechanism when images arranged on a sheet-like base material are photographed by two television cameras used as an example of a photographing device. . First, for ease of understanding, a case will be described in which images for 16 pages as shown in FIGS. 1 to 3 are arranged and printed in a single color to create a signature.

First, the sheet-like base material 20 and the sheet-like base material 2
1 and move the two predetermined pages of pasted images to (P16, P1), (P3, P2), (P4,
P5), (P6, P7), (P9, P8), (P11, P10) (P13,
P12), (P14, P15), and (P16, P1) are simultaneously photographed using two television cameras 30b and 30a.
That is, the left page shown in parentheses is the TV camera 30b, and the right page is the TV camera 30a.
and shoot at the same time.

The images of each of the two pages thus photographed are displayed on the image display device in a predetermined combination for each photograph.

The television cameras 30a, 30b are attached to lead screws 31a, 31b, and the lead screws 31a, 31b are rotated by motors 32a, 32b. This allows the television camera 30a,
30b can move in the Y direction (vertical direction) along guide bars 33a, 33b. Also motor 32
a, 32b are attached to lead screws 34a, 34b;
34b is adapted to be rotated by motors 35a and 35b, thereby allowing motors 32a and 32b to move in the X direction (lateral direction) along guide bars 36a and 36b. As described above, the television camera can move in the X and Y directions. Note that the motors 32a, 32b, 35a, 3
The rotation of 5b is controlled by motor control devices 37a and 37b. Motor control device 37a, 3
Data such as the number of pages on which the sheet-like base materials are arranged and the size of each page are given to 7b in advance, or are given on a case-by-case basis. As a result, the motor control devices 37a and 37b move the two television cameras to predetermined shooting positions.

FIG. 9 is a schematic explanatory diagram of the apparatus of the present invention which processes the image signal of the image photographed by the television camera as described above and displays the image on the image display device.

The sheet-like base material 20 on which the images of each page are arranged is illuminated by the light source 40, and as described above, the two television cameras 30a and 30b are used to image each page in a predetermined combination. Being photographed.

The television cameras 30a, 30b are moved in the X and Y directions by television camera drive mechanisms 41b, 41b. The image signal of each photographed page has its black and white level corrected by black and white level correction circuits 42a and 42b, and then its black and white level is corrected by mask circuits 43a and 43b.
a, passes through 43b. The mask circuits 43a and 43b cut out unnecessary portions of the image signal obtained by the television camera. That is, when an image of each page is photographed by the television cameras 30a and 30b, some of the images of the unnecessary page and the pages surrounding the necessary page may also be photographed, so the mask circuits 43a, 43b
This is to cut out unnecessary images of the entire page and unnecessary surrounding pages. The size of the mask is set using mask operation sections 45a and 45b. A keyboard or the like can be used as the mask operation sections 45a and 45b.

The image display control device 47 uses two television cameras 30a and 30b in accordance with the combination method determined by the folding method, the number of pages in the signature, and the way the book is opened (right-hand opening, left-hand opening, etc.). Necessary signals are selected and combined from the photographed image signals, and images that require the vertical direction of the image to be reversed are subjected to vertical reversal processing and input to the image display device 49. The image display device 49 is the image display control device 47
The combined image is displayed.

As the image display device 49, a television or the like is used.

The order and combination of the two television cameras 30a and 30b are as shown in FIG.
In the final folded state, each page should be opened in order so that it appears in the order in which it appears. That is, as shown in FIG. 4a, the first page is positioned on the right side of the screen of the image display device, and the left side is left blank. Next, as shown in FIG. 4B, the second and third pages are combined so that the second page is on the left and the third page is on the right.
Similarly, as shown in FIGS. 4c to 4h, the fourth
page and 5th page, 6th page and 7th page,
8th and 9th page, 10th and 11th page, 12th and 13th page, 14th and 15th page
The images of each combination are displayed in such a way that the even-numbered pages are on the left side of the screen of the image display device, and the odd-numbered pages are on the right side of the screen of the image display device. Display on the device 49. Finally, the 16th page is positioned on the left side of the screen of the image display device 49, as shown in FIG.
Leave the column on the right blank.

In this case, if the images of each page are arranged as shown in Figure 1 a and b, images (P9), (P8),
(P5), (P12) and images (P11), (P6), (P7),
(P10) is upside down, so when it is displayed on an image display device, the image display control device 47 performs upside down processing so that it can be seen in the correct state.

Also, as shown in Figure 5 a and b, the images of each page are arranged and printed and folded, as shown in Figure 6 a to b.
In this case, the combination of images of each page to be displayed on the image display device is determined as shown in FIGS. 6a to 6i.

Which images are combined to be photographed by the two television cameras 30a and 30b, and how they are displayed on the screen depends on the folding method used to make the signature, the way the book is opened, and the arrangement position of the images on each page. , the number of pages of the signature, and the input order of the images of each page are determined in advance. The predetermined data, i.e., how to fold when making a signature, how to open the book (right-opening or left-opening, etc.), the arrangement position of images on each page,
The number of pages of the signature, the input order of the images of each page, etc. can be preset in the television camera drive control device 52 in advance according to the expected combination, so that operations can be performed easily. preferable. In this way, by specifying the data to be inspected from among the preset data combinations, inspection work can be started immediately. Designation and modification of the preset data as described above can be performed using the image display operating device 50. A keyboard or the like can be used as the image display operation device 50.

FIG. 10 is a more detailed explanatory diagram of the image display control device 47, and the image to be displayed on the image display device 49 is instructed by an instruction signal _S1 from the image display operation device 50. The instruction signal S ₁ includes information such as the number of the double-page spread. The instruction signal S ₁ is input to the processing content selection device 60 . On the other hand, the reference pattern table 61 stores data indicating whether the image direction of each page to be displayed is an upright image or an inverted image, which is determined in advance in accordance with the number of pages of the signature, the folding method, and the like. The processing content selection device 60 uses a reference pattern table 61 in which processing content is stored in advance, such as whether the image of the page to be displayed is to be displayed as an erect image or flipped upside down based on the instruction signal _S1 . image signals for two double-page spreads to be determined with reference to and display the processing contents on the data processing devices 62 and 63 as processed signals S ₂ and S ₃
S ₄ and S ₅ are selected from the photographing devices 30a and 30b and inputted, respectively.

The data processing device 62 receives the input processing signal.
Based on S ₂ , if the processed signal S ₂ is a signal that should display the image upside down, the image signal S ₄ is subjected to upside down processing, and the processed signal S ₂ causes the image to be displayed as it is as an upright image. When the signal is an exponent signal, the image signal S ₄ is input to the image synthesis device 64 as a synthesis signal S ₆ with the vertical direction unchanged. Similarly, the data processing device 63 performs necessary processing on the image signal S ₅ based on the processed signal S ₃ and inputs the synthesis signal S ₇ to the image synthesis device 64 .

The image synthesizing device 64 synthesizes the synthesis signals S ₆ and S ₇ so as to produce a state similar to that of a double-page spread as shown in FIG. 4 or FIG. 6. In other words, the image synthesis device 64 divides the screen of the image display device 49 into left and right halves based on the two synthesis signals S ₆ and S ₇ and produces an image based on the synthesis signal S ₆ and an image based on the synthesis signal S ₇ respectively. Compose so that they are displayed together. The synthesized signal _S8 thus synthesized is input to the image display device 49, and the synthesized image is displayed.

By combining the images of each page as described above and sequentially displaying them on an image display device as shown in FIGS. 4a to 4i or 6a to 6i, a printed imposition film It is possible to easily check whether the images on each page arranged in the page are arranged in the correct order. In other words, if the images of each page arranged on the imposition film for printing are arranged in the correct position and in the correct state, the image displayed on the image display device will be displayed according to the predetermined conditions (i.e. right-opening or 4 or 6, depending on whether the screen is left-open or not. Furthermore, if the arrangement of the images on each page arranged on the imposition film for printing is incorrect, the order or combination of images displayed on the image display device will be incorrect. Therefore, by checking the images of each page that are sequentially displayed on the image display device, it is possible to very easily check whether the images of each page are arranged in the correct positions.

FIG. 11 is for explaining the relationship between images arranged on the sheet-like base material 20 and images synthesized and displayed by the apparatus of the present invention. In FIG. 11a, images P4 and P5 on the fourth and fifth pages show images of the dog's head and tail, respectively.

If this arrangement is correct, Figure 11b
As shown, the images of the fourth and fifth facing pages are correctly combined and displayed on the screen of the image display device.

However, if the image P4 or P5 in Figure 11a is arranged in the wrong position or upside down, the image synthesized and displayed on the screen of the image display device will be the image shown in Figure 11. Since it is not displayed in the correct state as shown in b, it can be instantly determined that the arrangement state is incorrect.

Although the present invention has been mainly described above with respect to a 16-page fold, it can also be applied to a 32-page fold or other number of pages.
Furthermore, there are various folding methods other than those described above, and it is natural that the present invention can be applied to each folding method.

According to the present invention, when a printed book in which images for a plurality of pages are printed on both the front and back sides according to a predetermined fold is finally folded and each page is sequentially opened and viewed, the left side that appears at the same time. Since the image on the page and the image on the right page are taken with two television cameras, it is possible to quickly check whether the images on each page are correctly arranged and pasted at the printing imposition film stage. Since it can be checked easily and reliably, it is possible to prevent material losses and time losses due to errors in the arrangement of each page.

Further, according to the present invention, it can be applied at the stage where an image is formed on a plate-shaped printing plate material such as a PS plate used in an offset printing method; However, the effect is great.

Those skilled in the art can appropriately add other functions to the apparatus of the present invention, such as making the magnification of the displayed image variable, as necessary.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of images of multiple pages arranged on two sheet-like base materials, and Figure 2 is an explanatory diagram of images of each page arranged as shown in Figure 1 on one printing medium. An explanatory diagram of the printed matter when printed on both sides, Figure 3 is an explanatory diagram of the folded signature of the printed matter in Figure 2, and Figure 4 is an illustration of how each page is printed when bound from the signature in Figure 3. Figure 5 is an explanatory diagram of another state in which images for multiple pages are arranged on two sheet-like base materials, and Figure 6 is an explanatory diagram to explain how images in the arrangement state shown in Figure 5 are arranged. Explanatory diagram explaining how each page looks after printing, folding, and binding, number 7
The figure is an explanatory diagram of a sheet-like base material having an image for one signature in four-color printing, FIG. 8 is a schematic explanatory diagram of the television camera drive mechanism of the apparatus of the present invention, and FIG. 9 is an explanatory diagram of the television camera drive mechanism of the apparatus of the present invention. A block explanatory diagram, FIG. 10 is a detailed explanatory diagram of the image display control device, and FIG. 11 is an explanatory diagram showing the relationship between the page array image and the composite display image. 20, 21... Sheet-like base material, 22... Printed matter, 23... Signature, 30a, 30b... Television camera, 31a, 31b, 34a, 34b... Lead screw, 32a, 32b, 35a, 35b
...Motor, 33a, 33b, 36a, 36b
...Guide bar, 37a, 37b...Motor control device, 40...Light source, 41...TV camera drive mechanism, 42a, 42b...Black and white level correction circuit, 43a, 43b...Mask circuit, 45a, 4
5b...Mask operation unit, 47...Image display control device, 49...Image display device, 50...Image display operation device, 52...Television camera drive control device, 6
0...Processing content selection device, 61...Reference pattern table, 62, 63...Data processing device, 6
4... Image composition device.

Claims (1)

[Claims] 1. In a method for inspecting whether or not images on each page are arranged at predetermined positions when printing images for a plurality of pages at once, Two pages of a predetermined combination of images of each signature are photographed using two photographing devices, and one page of each is photographed using one photographing device, and an image based on the image signal of each page is pre-prepared. The method is characterized in that a predetermined combination of pages is displayed on a display device in a preset page order, and the inspection is performed based on whether the displayed images are in the correct position and in the correct page order. A printing page layout inspection method. 2. A light source, two photographing devices capable of photographing at one time at least one page of multiple pages of images arranged on a sheet-like base material for each color, and two photographing devices arranged at X and Y respectively. an image display device that displays an image signal photographed by the photographing device in units of signatures for each page, and an image display device that displays the image signal of each page photographed by the photographing device in a predetermined manner. Images that need to be combined and reversed in the vertical direction of the images are subjected to vertical reversal processing, and image signals of corresponding pages are synthesized, and then sequentially input to the image display device to display the combined images. A printing page arrangement inspection device comprising: an image display control device that causes the image display device to display images.