JPS59202857A - Apparatus for converting picture pattern area ratio data - Google Patents

Abstract

PURPOSE:To attain to simplify a working process and to enhance working efficiency, by inputting the picture pattern area ratio data of an arbitrary printing plate to a converter apparatus through a magnetic card to convert the same to data treatable by a printer while presetting the supply amount of ink prior to start of printing. CONSTITUTION:Certain picture pattern area ratio data measured by a planimeter is outputted to be recorded by a magnetic card and read by applying the same to magnetic card reader writers 12, 13. The picture pattern area ratio data is taken in CPU21 and successively stored in the predetermined address of a main memory apparatus 22. After reading error checking is applied, a keyboard 17 indicates the picture pattern planimeter which measured the intake picture pattern area ratio data. Converting data inherent to the picture pattern planimeter is taken in one after another and the picture pattern area ratio data thereof is converted to the picture pattern area ratio data of a standard code format. In the next step, the output mode of data is selected and the magnetic card is inserted into the selected reader writer to output the picture pattern area ratio data or data of an ink key opening degree converted to the code format inherent to a printer to said magnetic card.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for converting measured data so that arbitrary printing (・prescenting of ink keys) can be performed using the measured data.

In recent years, in order to improve work efficiency in offset printing, the opening of the divided ink fountains has been adjusted manually ((
A system has been developed that automatically makes adjustments based on measurement data such as the image area ratio of the printing plate.

According to one example of such a system, a printing plate is illuminated with a suitable light source (e.g., a special fluorescent lamp, a laser, etc.), and the amount of light reflected from the printing plate is received by a photoelectric conversion device such as a photodiode. Convert it into an electric signal corresponding to the amount of light received, and calculate the jn1 area modulus of the image area for each ink key classification based on this signal.
The area ratio of each ink key is converted to the opening value of that ink key by outputting the area ratio to a desired information recording medium (for example, a magnetic card, etc.) and reading/taking the information recording medium with the ink printer of the printing press. This automatically adjusts each ink key without any effort.

However, in such a system, the exchange of information between the printing plate area ratio measuring device, ink presetting device, and ink remote control device is carried out using a specific code format, so there are many different code formats. This information cannot be displayed on other systems.

In general, printing factories are equipped with various types of offset sheet-fed printing presses and offset rotary printing presses, and these printing presses are often installed from several manufacturers.

Therefore, at present, each manufacturer's printing machine has a different code format, so each manufacturer's printing press needs to have its own printing plate area ratio measurement device (to operate it efficiently, Introducing a printing plate image area ratio measuring device would require a large amount of equipment (+iii) and a large floor area to install it, and furthermore, the flow of printing plates would not be differentiated for each manufacturer. As a result, the production process becomes complicated and work efficiency decreases.

In addition, according to the conventional system described above, since the measurement data from the printing plate pattern area ratio measuring device is information on the area ratio for each ink key, this area ratio is used to determine the ink key opening in consideration of the characteristics of the printing press. One ink presetting device is required for each printing press.

Therefore, in such a system, an expensive ink presetting device must be installed for each printing press, which is not only economically and inefficient in terms of space, but also requires work in conjunction with data conversion at the printing site. It is not desirable to input such various conditions. This converter converts the coat format of the image area ratio take or further performs a function conversion to convert this take into an ink key opening take, which can be processed by any printing machine. outside data and none,
A device 4 inputs this data to an arbitrary printing machine via the SQ-T, and presets the ink supply amount at the beginning of the printing process, thereby controlling the work process. It is possible to simplify the process, improve work efficiency, significantly reduce equipment costs, and efficiently utilize floor space.

The present invention will be explained in detail below with reference to embodiments of the drawings.

FIG. 1 is a perspective view of a device for converting image area ratio data according to the present invention, FIG. 2 is a block diagram showing a schematic configuration of an electric circuit, and FIG. 6 is a diagram for operating the device 1t of the present invention. It is a flowchart.

In FIG. 1, the present invention device [11 is improved operability υ]
Therefore, the front part of the device consists of a combination of a vertical surface (2), a gently sloped surface (3), and a steeply sloped surface (4). All control devices and display devices are centrally located.

A power switch (19), which is used relatively infrequently, and a fluoro-pitch SF drive Qe+ are arranged on the vertical surface (2) located below. The power switch (1, !11 is the main switch that controls the on/off of the power supplied to this device, and the Floonopitisk drive (16) converts the image area ratio take written on the Flonopeatisk. It is provided to read the program and data for conversion, and is activated by a command from CIU (211), which will be described later.

During normal operation, since the operator looks down on the device of the present invention from diagonally above, the gently sloped surface (3), which is the easiest to see and operate, includes the keyboard 07) and the display device 0.
8) is located. The keyboard consists of a numeric keypad and a small number of function keys, and is provided for inputting information necessary for data conversion, such as the printing press number, and a display device 181. is a liquid crystal display,
It is possible to apply an appropriate selection from an LED display, etc., and display the operation to be performed next by the operator to enable interactive processing.

Here, as mentioned above, the keyboard 07) is kept to the minimum required level, and the display device 08) is only used to display messages for interactive processing, so if you use one that can display one line, it will work. This is sufficient in terms of overall performance, and the device is simplified.

Furthermore, there is a magnetic card reader on Steep 11 (J slope (4)).
Install the lighters (12) and (13) so that their inlets and discharge ports face each other. Incidentally, data for adjusting a printing press is generally supplied using a magnetic card as a control object, and a magnetic card is similarly used as a recording medium for image area ratio data. However, as a matter of fact, the number of tracks of magnetic cards used by printing machines and pattern area ratio meters differs, and in order to cope with this, here we use magnetic card league card reader/writer (12), (I
This is a pilot lamp that indicates the operating status of J).

On the other hand, as shown in FIG.
Control of each part and data calculation are centered around Ll 1211, that is, data bus (23j
A main memory device (RAM) (221) is connected to the main memory device (RAM) (221).

The main storage device (23) stores picture area data read from a magnetic card by a magnetic card reader/writer, and also converts picture area ratio data imported from a floppy disk by a 70 nobby disk drive (16). It stores a program and a conversion take for the conversion program, and also stores image area ratio data or ink key opening degree data converted by this conversion program.

The aforementioned magnetic card league writer (12i, t131
, pilot lamp (11υ, (15), keyboard u
7) are the interface numbers respectively), (27), (29)
, (3o) and (31) to the data bus (23j).
Ifi) is connected to the data bus through a DMA controller (25) and a frontoptic drive controller (C) 2J, and the display device (rs+ has its display state controlled by a display controller (24J), It is connected to the data bus (23j) via (28,).

CP TJ (211 is an instruction from the keyboard Q7) to take the picture area ratio read from the magnetic card reader and stored in the main memory device (22) according to the program stored in the main memory device B (22). The converted data is temporarily stored in the main storage device ff (22i), and this data is transferred to the magnetic card through a magnetic card reader/writer. ?t until output to
71J perform haiku.

The device according to the present invention has the configuration as described above.
Next, we will discuss the code format conversion of the picture surface 41'' 1-rate deck based on the conversion program 1v].

``Second, save the program for converting the picture area ratio data and the accompanying conversion data to the main memory. 2) Import from a floppy disk via a 70 Novy disk drive.

This program performs the processing shown in Section 3 (2) (0), and the takes attached to the program are set for each of the picture area ratio meter and the printing machine,
This is to compensate for the values that vary depending on the image area ratio meter and printing machine when executing the program.

To explain the processing in this program according to Fig. 3, picture area ratio data measured with a certain picture area ratio meter is output and recorded on a magnetic card, and if it is 3 trunks, a magnetic card reader/writer for 6 trunks (13 ), if it is recorded on 9-track, it is passed to the 9-track magnetic card reader/writer (12) and read.

This picture area ratio data is taken into CI) IJ t2IJ and sequentially stored at a predetermined address of the main originator 1: key device (22) (step a). After the reading error check is performed (Step 1), use the keyboard (17) to indicate which picture area ratio meter the imported picture area ratio take was measured with (Step C).
. As a result, the program sequentially imports the conversion takes specific to the specified picture area ratio meter and converts the picture area ratio data into standard 0) code formano 1 picture area ratio data (step d, step e or step f). The standard code format includes all the items that exist in the code format specific to each image area ratio meter or each printing press, and the output image mating can be set arbitrarily.

Next, in step g, the output type of the data is achieved.

In other words, the data for setting the ink key opening cannot be accepted on the printing press side, or the data for setting the ink key opening can be read by the image area ratio data θ) by the device on the printing press, or only the ink key opening data, or even both data can be read. Since there are three possible cases, the choice of whether to output the image area ratio data or the ink key opening data is made by inputting an instruction from the keyboard 07).

If output as image area ratio data, specify the number of the printing press to which the printing plate is installed using the keyboard (17) (Step 11), import the conversion data specific to that printing press, and convert it into a standard code. The image area ratio data of the format is converted into the code format used in the printing machine (step 1, step 1 or step k).

The picture area 4' whose code format has been converted is stored in the main memory again.

On the other hand, even when outputting the data as ink key opening data, the printing machine is specified because each printing machine accepts different code formats (step 1). One method of converting pattern area ratio data to ink key opening data is to use the conversion function y2f (xl) and use this function (
・There is a method to convert it.

As the simplest example, as shown in Figure 4, y= a
If we explain the straight line return (also 0) expressed as x - t - b, then the coordinates of two points (X,
Using the equation of the straight line between the two points y+ ), (X,!, Y2), (
Convert the pattern area ratio data to ink key opening data (step m, step n, or step 0).

In this conversion process as well, a function is set according to the conversion data specific to each printing press, and the data is rearranged, and each mark is converted into a code format such as 1, 1, 1, etc. is stored in the device (22).

Next, depending on whether the number of recording tracks of the ω card reader/writer on the printing press side is 6 or 9 tracks, the data is sent to either the 5 track value card reader/writer (13) or the 9 track/R card reader/writer (121). A decision is made as to whether to send it, and by inserting a magnetic card into the selected reader/writer, the image area ratio data or ink key opening data converted into a code format specific to the printing machine is output to the magnetic card. .

The image area ratio data converting device according to the present invention is as described in Section 2 below, in which the operating devices and display devices are arranged centrally in the front, and each device is arranged on a vertical surface, a gently sloped surface, and a steeply sloped surface. Since they are efficiently arranged in consideration of the usage strength and usability of each, r and f are very easy to manufacture.

Moreover, the conversion program and conversion data specific to each pattern area ratio meter and each printing machine are externally recorded.
・Since it is read from the device (in this case, a floppy disk) in 1Δchi format, the program and conversion data can be modified if the number of image area ratio meters or print types increases, or if there is a change in the specifications 1fj. 11- becomes easier.

Furthermore, when converting the code format of the image area ratio data, it is first converted to a standard code format, and then this data is converted to image area ratio data or ink key opening data that has a code 7 format corresponding to each printing machine. Because of this, the program becomes simpler and the time required for processing can be shortened.

[Brief explanation of drawings]

The drawings show one embodiment of the invention, and FIG. 1 is a perspective view of the device of the present invention, FIG. 2 is a program diagram showing the outline of an electric circuit, and FIG. 6 is a flow chart showing the processing procedure. , FIG. 4 is an explanatory diagram of data conversion.

Claims (1)

[Claims] 1) Magnetic cart that reads a magnetic card on which picture area ratio data measured by a picture area ratio meter is recorded 1)-p'
Convert the code format of the pattern area ratio data,
Alternatively, a computer program for converting into ink key opening data, a floppy disk device that gives fixed data to each image area ratio meter and each printing machine, and operations during conversion processing of image area ratio data can be interactively performed. a display device and a keyboard for carrying out the process, an arithmetic control unit that converts and controls the picture area ratio data based on the program and data imported from the floppy disk device, and the converted picture area ratio data or ink key opening data. 4μ
(iB magnetic card writer (I! ii) The above-mentioned magnetic card league, floppy disk device, display device, keyboard, and magnetic card writer are arranged centrally on the front of the device. Area A and data conversion device.