JPH0334751Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an error prevention device for reliably performing color plate composition up to a preset number of times in a composition printer.

A compositing printer is usually used to compose images, text, etc. during the plate-making process, but if the composition is repeated many times, exposure for a certain color plate may be forgotten, causing the pictures or text to fall off during printing. Accidents occur. This is because with conventional composite printers, the plate maker records the number of times each color plate will be combined in a work sheet when designing the plate, performs the combination work, and then calculates the number of times it will be combined in his or her head. It is something that occurs. Therefore, the purpose of this idea is
In order to eliminate such conventional drawbacks, the present invention provides a device that prevents errors in the number of times of combining by counting the number of times of combining in a combining printer with a counter and comparing it with a preset value before starting the combining. It is in.

This idea will be explained below.

FIG. 1 is a block diagram showing an embodiment of this invention, and each circuit is organized into yellow (Y), red (M), indigo (C), black (BK), and spot colors. At the start of composition, the plate maker presets the number of compositions for each color plate using rotary switches 1 (11 to 15) as presetting means, and the signals from these rotary switches 1 are sent to conversion circuits 2 (21 to 25) for code conversion. ), and the preset values are displayed on the display 3 (31-35). In addition, the compositing work for each color plate is started by pressing start button 4 (41 to 45).
Each start signal from 41 to 45 is sent to the composite printer as a start signal. In the composite printer, this startup signal is input and the exposure lamp is turned on to expose the plate-making film, but the exposure signal ES output at this time is input to the gate circuit 5.
Exposure signals ES are distributed according to start signals from start buttons 41 to 45 and input to counters 6 (61 to 65). And counter 61~
The 65 counted values are each displayed on the display 7 (71 to 75) and are input to the comparator circuit 8. Signals from the conversion circuits 21 to 25 are also input to this comparison circuit 8, and when all the preset values and the count value of the counter 6 match, the coincidence signal CS output from the comparison circuit 8 is, for example, " H”. This coincidence signal CS is input to, for example, a lamp lighting circuit, and the coincidence signal CS is "L".
When this is the case, the lamp blinks, and when the match signal CS becomes "H", the lamp lights up continuously. Note that FIG. 2 shows an example of the arrangement of the panel surface of the device, and the rotary switches 1 (11 to 15) and the display 3 (31 -35), display device 7 (71-75), and start button 4 (41-45) are arranged.

The operation of such a configuration will be explained with reference to the time chart shown in FIG. At the beginning of the composition work, the platemaker looks at the work sheet and selects yellow, red,
The number of times of synthesis for blue, black, and spot colors is preset with a rotary switch 1, and the preset values are displayed on a display 3. In this case, while looking at the value displayed on the display 3, it is confirmed whether or not there is an error in the preset value of the number of combinations. In this example, the number of composites for the yellow color plate is preset to “2”, the red color plate to “3”, the blue color plate to “2”, the black color plate to “3”, and the special color to “3”. Each is preset to "2". When the presetting work for each color plane is completed, the operator starts the compositing work by operating one of the start buttons 4. For example, as shown in Figure 3A, time t1
When the start button 41 is pressed, this start signal is sent to the composite printer, and the composite printer starts the preprocessing necessary for film exposure (Fig. 3B), and the lamp built in the start button 41 is activated. is lit to indicate that the start button 41 has been instructed (third
Figure C). When the preprocessing in the composite printer is thus completed (time t2), the exposure lamp of the composite printer is turned on (D in Figure 3), and the exposure signal ES
is output (FIG. 3E), and this exposure signal ES is input to the gate circuit 5. The gate circuit 5 generates an exposure signal in response to a start signal from the start button 41.
Since the ES is distributed, in this case, the exposure signal ES is input to a counter 61 that counts the number of times yellow is combined, and the counter 61 counts the exposure signal ES.
Therefore, the count value of the counter 61 becomes "1", and "1" is displayed on the display 71. In this manner, when the first exposure for the yellow plate is completed (time t3), the lamp of the start button 41 is turned off, and the compositing printer performs post-processing to prepare for the compositing work for the next color plate.

By repeating the above-mentioned compositing work for each color plate, the exposure signal from the compositing printer is
The ES is distributed by the gate circuit 5 in response to an instruction from the start button 4, and counted by counters 61-65. Therefore, the operator continues the compositing work while comparing the values displayed on the displays 3 and 7, and continues the compositing work for each color plate until the preset value for each color plate is reached. Then, when all the displayed values on the display 7 match the preset values on the display 3, the synthesis work is completed. In this case, the comparison circuit 8 is the conversion circuit 21 to 25
The preset value from 1 is compared with the count values of counters 61 to 61, and when all the values match, the match signal ES is set to "H". That is, counter 6
The count value of counter 1 is "2", the count value of counter 62 is "3", the count value of counter 63 is "2", the count value of counter 64 is "3", and the count value of counter 65 is "2". When the match signal CS changes from "L" to "H". The lamp continues to flash until this match signal CS becomes "H", so the operator can confirm that it is still necessary to continue the synthesis work.
When the preset value and the count values of the counters 61 to 65 match, the match signal CS becomes "H" and the lamp is lit continuously, thereby knowing that there is no need to continue the synthesis work. In this way, the operator does not forget to make the necessary exposures for each color plate.

In the above embodiment, a rotary switch is used as the preset input means, but it is also possible to input using a numeric keypad or the like, and the start signal from the start button can be directly counted by a counter. It is also possible. Further, a buzzer or the like may be sounded based on the output of the comparator circuit 8, and the color displayed on the display may be changed for each color plate.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a diagram showing an example of the arrangement of the panel surface, and FIGS. 3A to 3E are time charts showing examples of its operation. 1 (11~15)...Rotary switch, 2 (21~
25)... Conversion circuit, 3 (31-35), 7 (71-75)
...Display, 4 (41-45) ...Start button,
5... Gate circuit, 6 (61-65)... Counter,
8... Comparison circuit.

Claims (1)

[Scope of utility model registration request] a counter for counting printing activation signals for each color plate of yellow, red, indigo, black, and special color in the composition printer; and a preset means for presetting the number of times of composition for each color plate;
An apparatus for preventing mistakes in the number of times of synthesis in a synthesis printer, comprising a comparison circuit that compares the counted value of the counter and the preset value of the preset means and outputs a coincidence signal.