JPS60196761A - Method and device for checking page arrangement of printing - Google Patents

Abstract

PURPOSE:To check the arrangement of pages in the printing plate state by picking up images of two pages of a preliminarily determined combination out of images of folding units, which are arranged on a base material in each color unit, by two photographic devices and displaying processed images with a preliminarily determined combination on two display devices. CONSTITUTION:A sheet-shaped base material 20 where images of individual pages are arranged in each color unit is illuminated by a light source 40, and images of every pages of a preliminarily determined combination are picked up by TV cameras 30a and 30b. Cameras 30a and 30b are moved in X and Y directions by TV camera driving mechanisms 41a and 41b. A picture display controller 47 combines required picture signals in accordance with the combination determined by the folding system, the number of pages of folding, and the book opening method and subjects required pictures to inversion processing and inputs them to picture display devices 49a and 49b. For example, even pages are displayed successively on the device 49a, and odd pages are displayed successively on the device 49b, and thus, it is checked easily whether images of individual pages arranged on a printing layout film are arranged in a correct order or not.

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, when printing books, catalogs, etc., it has been common practice to print images for multiple pages at once. In such a case, a printed matter with multiple pages printed is folded by a folding machine so that each page is in the correct order. By the way, if the printed material is folded using the fold +1fiK method, each page will have the correct JI number.5 In order to have the correct JI number, the images of each page formed on the printing plate must be arranged at predetermined positions. It is necessary to be present.

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. It shows that the cells are arranged normally at ℃. Figure 1 shows images of multiple pages (Pl), (P2), (P3)... (P
16) are arranged on two sheet-like base materials (20) and (21). 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, the sheet-like base material (20
) (Use a transparent plastic film as 2υ,
Images (Pl) to (Pl6) for multiple pages are transparent positive images or negative images that are transferred to the sheet-like base material (20) or (2).
We will proceed with the explanation by taking as an example the case of a film attached to 1), that is, the case of a film with printing (2), but it is not limited to this.For example, the sheet-like base material is a PS for printing It is a version, and the image (Pl) ~ (Pl
6) may be an image formed on the PS plate.

Two print halftone plates are made from two sheets of printing imposition film on which the images of each page are arranged as shown in Figures 1(a) and (b>), and the plates are Printing is carried out on both the front and back sides of paper or other printing materials using the offset method. Indicates the page indicated by , and the number without parentheses is the printed page (
22) shows each page printed on the front side, and the numbers shown in parentheses indicate each page printed on the back side of the position where each number is arranged. That is, the 16th, 1st, 4th, 13th, 9th, 8th, 5th and 12th pages are respectively printed on the garment and arranged at the positions indicated by the corresponding numbers. Also, Section 15.2.3.14.
Pages 10, 7, 6, and 11 are printed on the back, respectively.
They are arranged at positions A, indicated by corresponding numbers. In addition, here also, where the numbers indicating the valley pages are upside down, this indicates that the printed image is also upside down → -0 The printed matter (22) obtained in this way is first aligned with the A-A line. By folding along the B=B line, and finally along the C-C line, each page from the 1st page to the 16th page is correctly 11th page as shown in Figure 3. A signature (23) is obtained.

The signatures folded in the above manner are combined with other signatures as necessary, and the edge of the folded part along the C:-C line is used as the binding part, and the edge of the other edge is You can open each page by cutting it out. Fourth
Figures (al to (i)) show how each page looks when opened and viewed.

As is clear from FIG. 4, the book obtained in the above manner is designed to be read from the left page, and is used for 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 image of each page is shown in Figure 5 (al (b)). By arranging the pages, after folding and cutting, each page can be opened and viewed as shown in FIG.

As can be understood from the above explanation, when printing several pages worth of images (characters, designs, etc.), an imposition film or an imposition printing plate (see Figures 1 and 5) is used. At the creation stage, it is necessary to check whether the images on each page are correctly arranged in the predetermined positions.However, this check involves quite complex elements. The position on the sheet-like base material to be arranged depends on (a) how many generations to print at once, (middle) 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 page order after the folding operation, based on the state in which the images of each page are arranged on the sheet-like base material. Therefore, even if the images of each page are arranged in the wrong position, it is difficult to detect the error, and printing plates may be produced, printed, and bound without changing the arrangement. 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 studies to solve the various problems described above, and it is possible to inspect whether or not the arrangement of pages is correct, which was previously considered difficult. The purpose is to provide a method that can be easily carried out in the form of a plate.

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 shown in Figure 7 as an example, the lever sheet-like base material (208k
) and (218k) images of each page arranged in K array) are subjected to proprietary processing and displayed on an image display device (for example, a monitor television, etc.).

The predetermined processing refers to easily determining the order in which each page will be placed when a folding method is created according to a pre-specified folding method by looking at the image displayed on the image display device. The goal is to be able to do this. In this case, in addition to the folding method, it is necessary to preliminarily specify data such as the number of pages and the way the book is opened (right-handed or left-handed).

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 of all, for ease of understanding, Figure 1~
A case will be described in which images for 16 pages as shown in FIG. 3 are arranged and printed in a single color to create a signature.

Mass, sheet-like base material (20) and sheet-like base material (2)
) and set the predetermined 2 of the pasted image.
Pages (PI6, PI), (P3, P2), (P4,
p5), (P6, p7), (P9, P8), (
Pl 1, PI0n, (PI3, PI2), (P
I4, PI5) and (PI6, pl) are photographed simultaneously by two television cameras (30b) and (30a) in this order. In other words, the left page shown in parentheses is a TV camera (30
In b), the right page is simultaneously photographed with a television camera (30a).

The images of each two pages photographed in this way are displayed on two image display devices in a predetermined combination for each photograph.

TV cameras (30a) (30b) are lead screens.
(31a) (31b), and the lead screws (31a) (31b) are attached to the motor (32a).
It is designed to be rotated by (32b),
This allows the television camera (9a) (30b) to move along the guide bar (33aX33b) in the Y direction (vertical direction). Further, the motors (32a) (32b) are attached to the lead screws (34a) (34b), and the lead screws, -(34a) (34b) are rotated by the motors (35a) (35b). This causes the motor (32a) (3
2b) It can be moved in the X direction (lateral direction) using the guide bars (36a) (36b). As described above, the television camera can move in the X and Y directions. Naomo 1
- r32a) (32b) (35a) (35b) The rotation is controlled by the motor control device (37a) (37b). The motor control devices (37a) (37b) are provided with data such as the number of pages on which the sheet-like base material is arranged, the size of each page, etc., or may be provided each time. As a result, the motor control device (37a) (37
b) Move the two television cameras to predetermined shooting positions.

FIG. 9 is a schematic explanatory diagram of a device according to the present invention that processes an image signal of an image taken by a television camera while on base and displays the image on an image display device.

Sheet-like base material (20) on which images of each page are arranged
is illuminated by a light source (4Q) and photographed for each page in a predetermined combination by two television cameras (30a) (3Qb) as described above.

The television cameras (30a) (30b) are moved in the X and Y directions by television camera drive mechanisms (41a) (41b)K.

The image signal of each photographed page is processed by a black and white level correction circuit (
After the black and white level is corrected by 42a and 42b, the signal passes through mask circuits 43a and 43b. The mask circuit (43a043b) cuts out unnecessary parts of the image signal obtained by the television camera. That is, when the television camera (30a) (30b) takes an image of each page, some of the images of the unnecessary page and the pages surrounding the necessary page may also be taken. The circuits (43a) and (43b) remove images of the entire unnecessary page and unnecessary surrounding pages. The size of the mask can be determined by checking the mask operation section (4
5a) (45b). Mask operation section (45a
5b) may be a keyboard or the like.

The image display control device ('47) uses two television cameras (30
a) Select a necessary signal from among the image signals taken in (30b), perform a vertical reversal process on the image that requires reversing the vertical direction of the image, and display it on two image display devices (49).
a) (49b). The image display devices (49a) (49b) receive a signal from the image display control device (47) and display the selected image.

A television or the like is used as the image display device (49a) (49b).

The order in which the two television cameras (30a) and (30b) are photographed and the way they are combined are such that the images are taken in the order in which they appear when each page is opened in turn in its final folded state, as shown in Figure 4. VC-4-ru. That is, Fig. 4 (al
The first page is displayed on the right image display device (49b), and the left image display device (49a) is left blank. Next, as shown in FIG. 4 (bl), the second and third pages are combined so that the second page is displayed on the left image display device (49a) and the third page is displayed on the right image display device ( Similarly, as shown in Figures 4(C) to 4(hl), the 4th and 5th pages, the 6th and 7th pages, and the 8th and 8th pages are displayed. 9th page, 10th page and 11th page, 12th page
page and the 13th page, and the 14th page and the 15th page, so that the even numbered pages of each combination are displayed on the left image display device, and the odd numbered pages are displayed on the right image display device. Each combined image is displayed on an image display device (4
9a) (4gb). Finally, the 16th page is displayed on the left image display device (49a) and the right image display device (49a) as shown in FIG. 4(1).
49b) should be left blank.

In this case, as shown in Figure 1 (a) and (b) (if the images on each page are arranged, the images (P9), (P8)
, (P5), (PI2) and image (pH), (P6),
(P7) and (P 1.0 ) are upside down, so when they are displayed on an image display device, the image display control device (47) performs upside down processing so that they can be seen in the correct state.

In addition, if the images of each page are arranged, printed and folded as shown in Figures 5(a) and (b), the result will be as shown in Figures 6(al) to 6(i), so in this case, The combination of images of each page displayed on the image display device is shown in Figure 6 (a).
) to FIG. 6 (il).

Which images are combined to be photographed using the two television cameras (30a) (30b) and how they are displayed on the screen depend on how the folding is done, how the book is opened, and the images on each page. This is uniquely determined by predetermining the arrangement position of , the number of pages of the signature, and the input order of the images of each page. The predetermined data, i.e., how to fold when making a signature, how to open the book (right or left, etc.), the arrangement position of the images on each page, the number of pages in the signature, each It is preferable to preset the input order of the page images in advance in the television camera drive control device in accordance with the expected combinations, so that the joining process can be easily performed.

In this way, by specifying the data that corresponds to what is to be inspected from among the preset data combinations, it is possible to immediately begin the inspection work. The above-mentioned designation and modification of the preset data 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. 1O is a more detailed explanatory diagram of the image display control device (47), in which the image display device (49a) or (4
9b) The image to be displayed is specified. Instruction signal (Sl
) includes information such as whether it is the second facing page or not. The instruction signal (Sl) is a processing content selection device.
is input. On the other hand, in the reference pattern table (61), whether the image direction of each page to be displayed is an upright image or an inverted image is stored as data determined in advance according to the number of pages of the signature, the folding method, etc. There is. Processing content selection device 6
0) is a reference pattern table (6υ) in which processing contents are stored in advance, such as whether the image of the page to be displayed based on the instruction signal (Sl) is displayed as an erect image, or whether it is displayed upside down. Browse and decide,
The processing contents are input to the data processing devices (62) and (63) as processing signals (Sl) and (Sg). On the other hand, image signals (Sl) for two double-page spreads to be displayed are inputted to the data processing devices (62) and (63) (S) captured by the photographing devices (30a) and (30b), respectively.

The data processing device (62) receives the input processing signal (S).
Based on 1), if the processed signal (Sl) is a signal that should display the image upside down, the image signal (Sl) is subjected to upside down processing, and the processed signal (Sl) is used to display the image as it is as an authentic image. When the signal is to be displayed, the image signal (column) is input to the image selection device (65) as a selection signal (S6) with the vertical direction unchanged.

The data processing device (63) similarly performs necessary processing on the image signal (S) based on the processed signal (S3) and inputs the selection signal (S7) to the image selection device (@).

The image selection device (65) receives selection signals (S6) and (S7).
is selected and displayed on the left and right monitors in a manner similar to that of a double-page spread as shown in FIG. 4 or 6. That is, the image selection device (65) selects the two selection signals (S6) and (S7) and selects to display them separately on the left image display device (49a) or the right image display device (49blC).In this way, the selection signal is selected. signal (S9) (S10y is the image display device (4)
9a) and (49b), and the images are displayed respectively.

By combining the images of each page as described above and sequentially displaying them on two image display devices as shown in FIG. It is possible to easily check whether the images of each page arranged on the imposition film for printing are arranged in the correct order.In other words, it is possible to easily check whether the images of each page arranged on the imposition film for printing are correct. If they are arranged in the correct position, the image displayed on the image display device will be as illustrated in FIG. 4 or 6 depending on predetermined conditions (i.e. right-hand opening, left-hand opening, etc.) Furthermore, if the arrangement of images on each page arranged on the printing imposition film is incorrect, the order or combination of images displayed on the image display device will be incorrect. Therefore, it is possible to very easily check whether the images of each page are arranged in the correct position by the images of each page that are sequentially displayed on the image display device.

FIG. 11 is for explaining the relationship between the images arranged on the sheet-like base material (20) and the images selectively displayed by the apparatus of the present invention. In FIG. 11 (al), the fourth negative eye and images P4 and P5 on the fifth page show the image of the head and tail of the dog, respectively.

If this arrangement is correct, the images of the spread pages of pages 4 and 5 will be correctly selected and displayed on the screens of the two image display devices as shown in Figure 11(b).However, if If the image P4 or P5 of Figure 11 (al) is arranged in the wrong position or upside down, the image selectively displayed on the screen of the image display device will be changed as shown in Figure 11 (b). ), it is not displayed in the correct state, so 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, images for a plurality of pages are formed on both the front and back sides according to a predetermined folding pattern, and when each page is opened in order in the final folded state and viewed, the images on the left page can be seen at the same time. and the image on the right page 2
Since images are taken by each of the two television cameras and displayed on each of the two image display devices, there is no need for an image synthesis device or storage device, and the structure is simple and compact.
It is possible to quickly, easily and reliably check whether the images on each page are correctly arranged and pasted at the printing imposition film stage, so it is possible to quickly, easily and reliably check whether the images on each page are correctly arranged and pasted. Loss and time loss can be prevented.

Furthermore, according to the present invention, P used in the offset printing method
Although it can be applied at the stage where an image is formed on a plate-shaped printing plate material such as an S plate, the effect is better when applied at the stage of forming an imposition film for printing.

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 the drawing]

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 a signature folded from 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. An explanatory diagram explaining how it is visible,
Figure 5 is an explanatory diagram of another state in which multiple pages of images are arranged on two sheet-like base materials, and Figure 6 is an explanatory diagram of another state in which images for multiple pages are arranged on two sheet-like base materials. FIG. 7 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, FIG. 9 is a block explanatory diagram of the apparatus of the present invention, and FIG.
FIG. 11 is a detailed explanatory diagram of the image display control device, and FIG. 11 is an explanatory diagram showing the relationship between page array images and selected display images. (20) (2υ... Sheet-like base material (22) - Printed matter (23) - = Signature (30a) (30b) - f
L/ Hicamera (31a) (31b) (34a) (34
b) ・+)-Toscrew (32a) (32b) (3
5a)(35b)-%-ter(33a)(33bX36
a) (36b) ... Guide bar (37a) (37b
)・=%-tar control device (4G-・Light source (41a
) (41b) , TV camera drive mechanism (42a)
(42b) ---Black and white level correction circuit (43a) (4
3b)--Mask circuit (45a) <451]) ・-
=r SF operation unit (47) - Image display control device (49a) (49b) - Image display device (50) - Image display operation device 52 ... Television camera drive control device 60
) -1 Processing content selection device (6υ...Reference pattern table (62) (63 pieces...Data processing device (6
)・-Image selection device Fig. 1 Fig. 2 CAC Fig. 5 Fig. 6 Fig. 9 Fig. 40 Fig. 7

Claims (2)

[Claims] (1) When printing multiple pages of images at once In the method described in step 7 to check whether the images on each page are arranged in a predetermined position, the signatures are arranged on a sheet-like base material for each color. Two pages of a predetermined combination of unit images are photographed with two photographing devices, and one page of each is photographed with one photographing device, and images based on image signals for each page are prepared in advance. A predetermined combination of set pages is displayed on two display devices, and the inspection is performed depending on whether the displayed images are in the correct position and in the correct page type. A printing page layout inspection method. (2) A light source, two photographic 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 the two photographic devices. an imaging device drive mechanism for driving in the X and Y directions, respectively;
two image display devices that display the image signals photographed by the photographing device one page at a time in units of signatures; Printing characterized by comprising: an image display control device that performs vertical reversal processing on an image that needs to be reversed, inputs image signals of the corresponding page to the two image display devices, and causes the image display devices to display the image signals. page arrangement inspection device.