JPS62250452A - Trimming device for printing plate making - Google Patents

Abstract

PURPOSE:To read image data which is already trimmed by computing original patch and paste lines and a trimming range based on magnification data from a magnification measuring machine and position data from a data tablet. CONSTITUTION:The image I of an original is projected on the surface of allocation specifying paper B set on the data tablet 10 on a working desk and a magnification adjusting switch provided to an operation console panel 7 is operated to make a pattern coincident; and the the current magnification is displayed on a magnification display device 8 and magnification data is inputted to an arithmetic controller 20. Vertexes R1-R4 of a rectangle forming the projection image I are inputted with a cursor 11 and position data on vertexes Q1-Q4 of a rectangle indicating a trimming range in the projection image I are further inputted with the cursor 11. When positioned data on the allocation specifying paper B are inputted, the arithmetic controller 20 begins to process the position data and magnification data and computes the patch and paste line data and trimming range data on the original.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for obtaining cropped image data when performing color separation of various originals using a scanner, particularly a layout scanner.

(Technical background) In recent years, along with color separation of originals using scanners, printed matter!
Layout scanners are used in the field of printing plate making, which synthesizes image data of purchases through computer processing.

This layout scanner is a scanner connected to a computer with a page editing function, and image data captured by the scanner is fed to the computer, and after processing such as layout, is output to the scanner.

FIG. 14 is a schematic diagram showing the configuration of a general layout scanner. In the figure, 160 is a layout section, 170 is a tablet digitizer, and 180 is a scanner section.

As shown in the figure, the layout unit 160 includes the computer 16
The tablet digitizer 17
0 consists of a cursor 171 and an input surface 172, and input surface 1
In 72, a mount area 173 and a menu area 174 are set. The scanner section 180 is composed of an input drum 1811, an output drum 182, and interfaces 185 and 186, and the interfaces 185 and 186 are connected to the computer 161. Note that the computer 16
1 consists of an input combinator, a layout computer, and an output computer (all not shown).

In this layout scanner, editing work of image data is performed in the following manner based on various manuscripts, layout specification sheets, and other instructions. First, a document is pasted on the input drum 181 of the scanner section 180 at an angle specified by the layout designation paper, and the image data of the document is imported into the input computer (not shown) of the combiator 161 via the interface 185 and stored in the memory 162. Make me remember. Image data is imported from the original according to the scaling factor indicated on the layout designation sheet (not shown) for an area slightly larger than the actual trimming range, and is later imported into the computer 1.
61 layout computer (not shown) performs accurate trimming.

A memory 162 in which image data has been written is separated from the input combinator and connected to the layout computer. As a result, the image data written in the memory 162 is displayed on the display 164. The operator observes this displayed image and moves the cursor by operating the joystick 165 while referring to the layout designation sheet to designate the trimming range, the position of the screen cover, etc. Further, the keyboard 166 is used to specify the printing surface color, halftone percentage, etc.

Since data subjected to layout processing according to these assumptions is written to the memory 163, after the writing is completed, the memory 163 is disconnected from the layout computer and connected to an output computer (not shown) of the computer 161. The data in the memory 163 is thereby retrieved via the output computer and interface 186,
The trimmed and laid out image is output onto the film placed on the output drum 182 of the scanner section 180.

Also, a joystick 165 and a keyboard 166
The above operations performed using the tablet digitizer 170 can also be performed by operating the tablet digitizer 170. That is, the above layout designation paper is set on the mount area 173 of the tab left digitizer 170, and the cursor 171 is operated to select the position data of the picture drawn on the layout designation paper and various menus set in the menu area 74. and enter it.

Here, when capturing image data of a document from the input drum 181 of the scanner section 180, it is first necessary to paste the document onto the manual drum 181 at an angle specified by the layout designation sheet. The pasting of this manuscript is carried out by the operator based on visual estimation. That is, the inclination angle of the figure drawn on the layout designation paper is measured with a protractor, and based on this measurement value, the angle of the document is determined to be N using the protractor and the like, and the document is pasted on the input drum. Therefore, there has been a problem that not only the work is complicated, but also the original cannot be pasted at an accurate angle. In order to improve the work of pasting documents onto the input drum of this scanner, a special device is developed that uses a magnification measuring machine with a projection function to measure the magnification and outputs the angle pasting gauge of the document. This invention has been proposed by the present applicant as the invention of Application No. 162108/1983.

Next, in layout work using the computer 161, it is necessary to accurately trim the captured image data. This trimming work is performed by displaying an image on the display 164 and operating the joystick 165, so the positioning of the trimming range tends to be inaccurate, which not only requires skill but also requires a long time on the computer 161. This caused the problem that expensive layout scanners could not be used efficiently.

Therefore, in order to improve this work, the above-mentioned original angle pasting gauge is used to specify the position 1 for pasting the original, and the position data regarding the edge corner points of the original are set in advance, as shown in Fig. 14. Japanese Patent Application No. 59-141324 discloses a method of reading cropped image data by supplying position data or magnification data necessary to calculate the trimming range of a document to an input computer of a layout scanner using a tablet digitizer 1'70. This invention has been proposed by the present applicant as the invention of No.

However, in the invention of Japanese Patent Application No. 59-141324, since the original angle pasting gauge only draws 1M7i orthogonal lines at predetermined positions, it is not possible to insert multiple originals into the input drum of the scanner at the same time. Moreover, since the magnification and angle measurement of the original and data input using the tablet digitizer 170 are performed separately,
Problems have arisen in that work efficiency is low and the accuracy of trimming range data is also poor.

(Object of the Invention) The present invention has been made in view of the above-mentioned points, and it is possible to input position data for calculating cropping range data at the same time as measuring the magnification and angle of the original, and to scan multiple originals with a scanner. It is an object of the present invention to provide a device that can read trimmed image data by inputting it to an input drum.

(Summary of the Invention) To achieve this objective, the present invention provides a magnification measuring device that measures the magnification of the original by projecting the original into a specified size, and data that inputs the position data of the reference line and pattern on the designated layout paper. a tablet, a calculation control device that performs calculations based on the magnification data from the magnification measuring device and the position data from the data tablet to calculate data on the document pasting line and the trimming range, and based on the calculation results of the calculation control device. an output device that outputs the original pasting line and a trimming line indicating the trimming range on a sheet, and directly trimming the original set on the input drum of the scanner via the sheet based on the trimming range data. A trimming device for printing plate making is provided, which is equipped with a control device that takes in completed image data.

(Example) The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an apparatus showing an embodiment of the present invention, in which A1 is a document pasting sheet creation device, At is a layout scanner, and FIG. 2 is a manuscript pasting sheet creation device shown in FIG. In the external view of the device A1, l represents a magnification measuring device, 2 is a workbench, 3 is a column, 4 is a projection lens, 5 is a document holder, 6 is a lamp house, 7 is a handling control panel, and 8 is a magnification display. , 9 is an angle display, 10 is a data tablet, 11 is a cursor, 0 magnification measuring device l is a keyboard 2
L display 22 and floppy disk device 23
XY plotter 3 via arithmetic and control unit 20 connected to
Connected to 0. Note that B is a layout designation sheet, ■ is a projected image of the original placed on the original holder 5, and W is a sheet on which original pasting lines, trimming lines, etc. are drawn.

The projection lens 4, document holder 5, and lamp house 6 are held together by the support 3, and the magnification measurement is performed using the surface of the layout designated paper B placed on the surface of the workbench 2 as the projection surface of the document image. The original placed in the original holder 5 is illuminated by a light source installed in the lamp house 6 through a suitable condenser lens, and a projected image I of the image is displayed. It is designed to be projected onto the surface of designated paper B.

Furthermore, the projection lens 4, document holder 5, and lamp house 6 are configured to be movable up and down along the support 3, and can be moved up and down by operating a switch on the operation control panel 7. Projection image 1, which has been reduced or enlarged to an arbitrary size over a predetermined range, is placed on layout designated paper B.
It is now possible to form an image on the surface of the object. Then, at this time, the distance between the projection lens 4 and the layout designation paper B is taken in by a linear encoder or the like, and the magnification is calculated through arithmetic processing and displayed on the magnification display 8.

Therefore, if you set a transparent original in the original holder 5 and match its projected image ■ with the figure drawn on the designated layout paper B, the magnification will be automatically displayed on the magnification display 8 and you can measure the magnification. It can be terminated. Note that such an automatic magnification measuring machine is well known.

Further, the data given from the magnification measuring device 1 and the data tablet 10 are input to the arithmetic control bag 220 via a signal input section (not shown). The start of processing is controlled by the numeric keypad, push button switches, keyboard 21, etc. provided on the operation control panel 7, and output of drive signals to the XY plotter 30 and display signals to the angle display 9 and magnification display 8. output, etc.

The layout scanner A2 is composed of a scanner section 180 and a layout section 160 of the apparatus shown in FIG. A floppy disk drive M167 is connected thereto, and 187 in FIG. 1 is a scanning head.

The linear encoder 183 detects the position of the scanning head 187 and generates position data P representing the axial position of the drum 181.
Reference numeral 4 detects the position along the rotational direction of the drum 181, that is, the circumferential direction, and generates position data P corresponding to the position.

The floppy disk device 167 is for receiving and receiving the data stored in the floppy disk device 23 of the original pasting sheet creation bag NAl, and the computer 161 reads the trimming range data of the original etc. from this floppy disk device 167 and uses the interface. The face 185 is controlled to capture the trimmed image data V.

Next, the operation of the apparatus shown in FIG. 1 will be explained.

FIG. 3 is an explanatory diagram showing the measurement procedure in the original pasting sheet producing apparatus A.

First, after placing the layout designation paper B (or its copy) on the data tablet 10 on the workbench 2 (SL),
When setting an original such as a color film in the original holder 5 (S2), an image of the original is placed on the surface of the designated layout paper B placed on the data tablet 10 on the workbench 2! to be projected.

Next, after inputting the original drawing using the numeric keypad or keyboard 21 provided on the operation control panel 7 (S3), the magnification adjustment switch provided on the operation control panel 7 is operated, and the original image drawn on the layout designated paper B is input. The pattern of the original image I is made to match the layout designation graphic. In this case, the position is changed by shifting the layout designation paper B on the workbench 2.

After that, when the magnification display switch on the operation control panel 7 is operated, the magnification at that time is displayed on the magnification display n8, and the magnification data is taken into the arithmetic and control unit 20 (S4).
.

Note that, as already explained, the above operations are almost the same as in the case of a well-known magnification measuring machine, and the following operations are not necessary for documents that do not require angle setting or trimming range setting.

Next, various position data on the layout designation sheet B are input (S
5).

FIG. 4 is an explanatory diagram of input points on the data tablet IO. In the figure, the layout designation paper B is placed on the data tablet 10 provided on the workbench 2, and the layout designation paper B
On the top, a plate line H forming a rectangle and a figure E for designating layout are drawn. The projected image l is projected so as to match the figure E.

First, two points P on the printing plate line H drawn on the layout designation paper B.
1. Input the position data of R2 using the cursor 11. This printing plate line H corresponds to the reference line when pasting the original on the decomposition drum of the scanner. , and further input the rectangular vertices Ql, Q2, Q3, which indicate the trimming range in the projected image ■.
Input the position data of Q4 using the cursor 11. These position data can be accessed by operating the operation switches on the operation control panel 7 or the keyboard 21! 20
be taken in.

When the position data on the layout designation sheet B is input in this way,
At this point, the arithmetic and control unit 20 starts processing the position data and the magnification data, and calculates the pasting line data and trimming range data of the original (S6). Next, the sheet of pasting lines and trimming range of this original is calculated. Output position data on W is input and taken into the arithmetic and control unit 20 (S7). The various data taken into the arithmetic and control unit 20 are stored in the floppy disk device 23 (S8). At this time, the stored position data of the pasting line and trimming range of the original is stored at the output position on the sheet W. This is taken into consideration.

Here, when the gauge output scale inch of the operation control panel 7 or the keyboard 21 is operated, the data from the memory is sent to the control circuit of the XY plotter 30, thereby
The graphic output operation by the profiler 30 is started, and a hard copy is completed in which a graphic indicating the document pasting line and the trimming range is drawn at the designated position (S9).

After this, when performing the magnification measurement work for the next document, return to step S2 from step 310 and perform the operations up to step S9. In this case, when inputting the output position data in step S7, the sheet W is Since a figure indicating the pasting line and trimming line of the document inputted up to the operation is drawn, the desired output position data can be easily input by referring to this figure.

In this way, when a series of operations such as repeating magnification measurement of a predetermined original is completed, or when step S
After step 10', if there is no more space for figures that can be drawn on the sheet W, an end operation is performed (510).

FIG. 5 is an explanatory diagram showing the positional relationship of each point input from the data tablet 10 in step S5, and the calculation of the pasting line data and trimming range data of the original in step S6 will be explained in detail based on the diagram. do.

Two points P1 and R on the printing plate line H at the X-Y coordinates shown in the figure.
If the coordinates of 2 are PI (a, b) and R2 (c, d), then the inclination θ of the printing plate line H with respect to the coordinate axis X is −b tan θ−□ ■ −a.

Here, if the origin is PO (w, z) and the new coordinates whose coordinate axes are the plane line H and the line orthogonal to this are X-y, the coordinate conversion formula from the X-Y coordinate to the x-y coordinate is It will look like this:

X=xcosθ+y sinθ+W Y=-xsinθ+ycosθ+2 Than this becomes.

Also, from equation 0, sin θ and cos θ are expressed as For example, if 0 is missing at the coordinate value of
The X-Y coordinate values of point R1 are (XRI, YRI), x
When the -y coordinate value is (x R1, y R1), it becomes 1 d-b 1 .Similarly, all points R2-R4 and QINQ4 are obtained in x-y coordinates.

Next, drawing coordinate values for drawing with the XY plotter 30 are calculated from these coordinate values.

The magnification obtained in the magnification measurement work is multiplied by m, the coordinate values obtained as a result of the above calculation are (x, y), and the drawing coordinate value is (D
x, D y), then

Therefore, the drawing coordinate values to be drawn by the XY plotter 30 can be obtained from equations (1), (2), and 0.

FIGS. 6, 7, and 8 show examples of output position data input in step S7 of FIG. 3, and each side will be explained based on the figures.

FIG. 6 shows an example of displaying original pasting lines and trimming lines on the display 22 and inputting the output position. In the figure, 250 indicates the outer frame of the sheet placed on the XY plotter 30, and FN is Hidden original, St is the size of the sheet 0 As shown in the figure, an outer frame 250 is displayed on the display screen of the display 22, and an outline 251 of the original and trimming &I 25 are displayed at a predetermined position aO inside the outer frame 250.
A figure A consisting of 2 is displayed, and the document 11ktFN input in step 3 is displayed near the figure A.
A sheet size Sl is displayed near the lower right outside of the outer frame 250.

The outer frame 250 is displayed by inputting the size of the sheet W when the layout designated paper is set in step Sl, but the sheet size can be input by directly inputting the size itself from the keyboard 21. or by using preset numbers/symbols, or
This is done by inputting the target scanner, drum type, etc. This input sheet size is then taken into the arithmetic and control unit 20. Note that if the size itself is not input, the output size corresponding to the input number etc. is stored in advance in the memory 23 of the arithmetic and control unit 20, and the 0 contour line 251 is based on the document pasting line data calculated in step S6. As shown, the trimming line 252
is displayed based on the trimming range data calculated in step S6. Further, the figure A displayed on the display 22 can be arbitrarily moved within the outer frame 250 by operating a cursor movement key (not shown) provided on the keyboard 21. Therefore, by operating the keyboard 21 to move the figure A to the desired position, step S7
The output position data will be input. The movement to this figure is carried out, for example, by moving figure A to a position Wal indicated by the broken line in FIG. Note that the predetermined position aO is not limited to the lower right corner as shown in the figure.
, can be set arbitrarily.

In addition, since the outline, trimming line, etc. of the document whose output position has been inputted up to the previous operation are displayed on the display 22, when inputting the output position data in step S7, the figure displayed at the position ao may be moved to a desired position by referring to these display figures into which output position data has already been input.

Fig. 7 shows an example in which an XY plotter with a digitizer is used in place of the XY plotter 3o shown in Fig. 1, and the output position can be input directly. b) is an explanatory diagram of output position input using this XY block with digitizer.

As shown in FIG. 7(a), the XY plotter 40 with digitizer is equipped with an XY plotter 41, a digitizer surface 42, and a cursor 43, and the output position of the XY block 41 is at the position on the digitizer surface 42 input by the cursor 43. can be controlled so that it comes. This XY plotter 40 with a digital quizzer is connected to an arithmetic and control unit 2 shown in FIG.
Connected to 0. Here, the output position data input in step S7 will be explained based on FIG. 8 (bl).

As shown, a sheet w is placed on the digitizer surface 42, and a figure SR consisting of a contour line 261 indicating a document pasting line and a trimming line 262 has already been drawn at a position bl at the upper left corner of the sheet W. The human power for the output position in step S7 is inputted by moving the cursor 43 and specifying a desired position on the digitizer surface 42. For example, if point b2 is specified with the cursor 43 as shown in the figure, point b
A figure consisting of an outline and a trimming line, such as figure SB, is drawn by the pen 44 with 2 at the center.

FIG. 8 shows an example of specifying a plurality of output positions of the XY block 30 stored in advance, and FIG. 8(a) is an explanatory diagram showing input of output positions in the XY plotter 30.

As shown in the figure, a sheet W is placed on the board 31 of the XY plotter 30, and a figure SO consisting of a contour vA261 indicating the original pasting line and a trimming line has already been drawn at the upper left corner of the sheet +-W. Here, the output position of the XY plotter 30 is input as follows. First, the transparent film 270 is placed on the sheet W on the board 31. Grid lines 273 are drawn on the transparent film 270,
Intersection points 274 are marked at the intersections of the grid lines 273. The transparent film 270 and the board 31 are positioned by fitting holes 271 and 271 provided at one end of the transparent film 270 into pins 32 and 32 provided at one end of the board 31. Select the intersection point near the desired output position c2 and press the numeric keypad or keyboard 21 provided on the operation control panel 7.
Enter more information. This means that the output position has been input in step S7.

FIG. 8-) is a table showing the relationship between the intersection point 274 and the coordinate values on the XY plotter 30. As shown in the figure, the table 280 includes each intersection point Na The X and Y coordinates of the output position of the XY profiler 30 corresponding to 274 are set. This table 280 is prepared in advance by the arithmetic and control unit 20.
stored in memory.

FIGS. 9(a) and 9(b) are explanatory diagrams showing examples in which original pasting lines and trimming lines output in step S9 are drawn on various sheets.

FIG. 9 (jl) is an example of drawing on the transparent sheet 100. In FIG. , a magnification value of 100- are drawn. A rectangular original pasting line 102 is drawn in the center of the transparent sheet 100, and a rectangular trimming line 103 indicating a trimming range is drawn inside the original pasting line 102.

FIG. 9 (bl is an example of drawing on an opaque sheet 200 such as paper. In this case, like the transparent sheet 100 described above, a reference line 201a, its orthogonal line 201b, an original value of 20ON, a magnification value of 200I, a rectangular original pasted The trimming line 203 is drawn by extending each side of the rectangle to the outside of the original pasting line 202.This means that the opaque sheet 200 is cut along the original pasting line 202. This is because after the document is cut out, the document is inserted into the cutout portion.

FIG. 1O is an explanatory diagram showing an example in which original pasting lines and trimming lines outputted in step s9 for a plurality of originals are drawn on a transparent sheet.As shown in FIG. A line 301b perpendicular to
03 is drawn at the desired position, and the original Na30ON and magnification value 3 are drawn near these original pasting lines and trimming lines.
The 0 axis is drawn.

Next, the operation of layout scanner A will be explained.

・FIG. 12 is an explanatory diagram showing a state in which a document is set on the manual drum 181 of the scanner using the document pasting sheet W shown in FIG. These are reference lines provided in the axial direction and the circumferential direction, and these reference lines Ta and Tb are orthogonal to each other and are provided by an appropriate method such as paint. are aligned with the reference lines Ta and Tb on the drum 181, and one end of the line is aligned with the input drum 1.
It is fixed to the circumferential surface of 81 using tape or the like. and,
A desired document Fl-F4 is sandwiched between the sheet W and the input drum 181 along the outline of the document drawn on the sheet W, and the other end of the sheet W is fixed to the circumferential surface of the drum 181 with tape or the like. , the setting of the original onto the input drum 181 is completed.

FIG. 11 is a flowchart showing the operation of the layout scanner Ax, and the capture of image data of a document will be explained below based on the figure.

First, as shown in FIG.
), The floppy disk device 167 reads the data stored in the floppy disk device 23 of the document pasting sheet creation device A1 (521). 0, which is data representing trimming lines, drawing positions, etc.Next, when the image of the original for which image data is to be imported is input (S22), the computer 161 determines the reference line Ta of the human-powered drum 181 based on the data read in step 321. , Calculate the position data of the trimming range of the document with Tb as the coordinate axis (S23). After this, the operation head 187 of the scanner unit 180 starts reading the image data of the document, and based on the data calculated in step S23. Only the image data within the trimming range is read (S24) and stored in the memory 162 via the ink face 185 and combiator 161 (525).
).

FIG. 13 is an explanatory diagram showing the trimming range position calculated in step 323, and the calculation of the trimming range position data in step 323 will be explained based on FIG. 13 and FIG. Let K be the figure representing the trimming range of the original Fl set in , and the two opposing points be ql, 93 . Reference line Ta, T
Let the intersection point of b be ρ, and the position coordinates of the input drum 181 be ql (xql, yql), q3 (xq3.yq3), and p (xp, yp), respectively.

Each of these points ql, 93, p is the point (11,
This point corresponds to Q3 and PO. Now, the point, Ql
, Q3's position data are expressed as coordinate values (xQl, yQl) on the x-y coordinates whose origin is the point PO shown in Figure 5.
3, yQ3) and the magnification value is m, the relationship between the coordinate values of each point is as follows.

xQl −m(xql −xp ) −■y
Q1-m(yql-yp)-■xQ3
=m(xq3−xp) −−■yQ3. −m(
yq3− yp ) −■Here, point Q1,
The coordinate values of Q3 are (xQl, yQl), (xQ3, y
(13) is calculated in step S6 of FIG. 3, and these coordinate values are given to the computer 161 in step S21 shown in FIG. 11, and are the coordinate values of point p (Xp, yp)
Since is given to the computer 161 as a constant, position data xql, yql representing the points qt, 93 necessary to specify the trimming range K from the above formula 0 to 0.
, xq3, and yq3 can be easily calculated.

Note that in step 324 of FIG. 11, the point Ql.

Position data representing q3 xql, yql, xq3
, yq3, there are various ways to read the image data from only the trimming range. For example, the position in the scanning direction (sub-scanning direction) by the scanning head 187 is read by the linear encoder 183. Using the resulting data P and the data P from the rotary encoder 184, a gate is opened only from when the data P exceeds the position data xql until it reaches xq3, and when the data P is at the position. The image data (2) from the RAD 187 may be gated to the scan using a gate that is opened only from the time when the data exceeds yqt until the data reaches yq3.

The original F set on the input drum 181 in this way
Once all the image data of l-F4 is stored in the memory 162, the layout or modification of these image data
After processing such as changes, the laid out image data is outputted to the exposed film set on the output drum 182 via the interface 186, and the exposed film on which the image is formed is later used as a film master. used in the process.

Note that in preparation for changing or modifying the trimming range of image data during layout processing in the computer 161, image data in a slightly larger range than the trimming range may be imported to leave room for modification or modification.

(Effects of the Invention) As described above, in the apparatus of the present invention, it is possible to input the position data for calculating the trimming range data at the same time as measuring the magnification and angle of the document, and it is possible to input the position data for calculating the trimming range data at the same time as measuring the magnification and angle of the document. Since it is possible to read cropped image data by setting the scanner to The trimming range setting work can be done quickly and accurately, and as a result, the operating efficiency of the layout scanner can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an apparatus showing an embodiment of the present invention, FIG. 2 is an external view of the original pasting sheet producing apparatus A shown in FIG. 1, and FIG. 3 is a drawing of the original pasting sheet shown in FIG. 1. Creation device A,
Measurement procedure in . FIG. 4 is an explanatory diagram of the input points on the data tablet 10 shown in FIG. 1, and FIG. FIG. 6, FIG. 7, and FIG. 8 are explanatory diagrams showing an example of output position data input in step S7 of FIG. 3. FIG. 10 is an explanatory diagram showing an example of drawing the original pasting lines and trimming lines output in step S9 on various sheets, and FIG. FIG. 11 is a flowchart showing the operation in the layout scanner At shown in FIG. 1, and FIG.
An explanatory diagram showing a state in which a document is set on the input drum 181 of the scanner using the document pasting sheet W shown in the figure.
FIG. 3 is an explanatory diagram showing the trimming range position calculated in step 323 of FIG. 11, and FIG. 14 is a schematic diagram showing the configuration of a general layout scanner. l... Magnification measuring device 2... Workbench 3... Support 4... Projection lens 5... Original holder 6... Lamp house 7... Operation control panel 8... Magnification indicator 9... Angle indicator lO...・Data tablet 11...
Cursor 15... Signal manual section 20... Arithmetic control unit 21... Keyboard 22... Display 23... Floppy disk device 30... XY plotter 160... Layout section 1
61 ... Computer 162.163 ... Memory 164 ... Display 165 ... Adjustment 166 ... Keyboard 167 ... Floppy disk device 180 ... Scanner section 181 ... Input drum 182 ... Output drum 183 ... Linear encoder 184・Rotary Acoder 185.186 ・・Ink face 187 ・・Scanning head AI ・・Document pasting sheet creation device A!・・Layout scanner B・・Layout specification sheet ・・Projected image of the original W・・Sheet Patent applicant: Dai Nippon Printing Co., Ltd. Representative Patent attorney Atsumi Konishi Figure 4 Figure 5 Figure 6 Figure I Figure 7 Fig. 10 Fig. 11 Fig. 12 Fig. 13 b

Claims (1)

[Claims] A magnification measuring device that measures the magnification of the original by projecting the original to a specified size, a data tablet that inputs the positional data of the reference line and pattern on the specified layout paper, and the magnification data from the magnification measuring device and the data. an arithmetic control device that performs calculations based on position data from a tablet to calculate data on a document pasting line and a trimming range; and a calculation control device that calculates data on a document pasting line and a trimming range based on the calculation results of the calculation control device; The present invention is characterized by comprising an output device that outputs the output onto a sheet, and a control device that directly imports cropped image data from the document set on the input drum of the scanner via the sheet based on the trimming range data. A trimming device for printing plates.