JPS6097771A - Two color original transmitting method - Google Patents

Abstract

PURPOSE:To decrease the transmission time and also to eliminate useless print at the reception side by using only a part where two colors of a two-color original are mixed as a transmission object, excluding the other part form the object of transmission and compressing the transmitted data. CONSTITUTION:A two-color original 1 is scanned in the main scanning direction by a CCD image sensor 11 so as to read a picture signal. In order to discriminate the two-color picture of the original, the reflected luminous amount of each color through the irradiation of a light source A and that through the irradiation of a light source B is set differently and the luminescent wavelength band of the light sources A, B is set differently by taking the spectral reflecting characteristic of two colors into consideration. A picture signal obtained in this way is inputted to an arithmetic circuit 16 via a reading section 15 and the signal is formed into a picture data separated into two colors at the section 15. When two colors are mixed in the scanning of one line, a transmission control section 18 decides it as the transmitted data and the data with one color only is excluded from the object of transmission.

Description

DETAILED DESCRIPTION OF THE INVENTION The following description relates to a two-color document electronic transmission method for reading a two-color document, electronically transmitting it, and printing it.

Recently, a two-color original electronic transmission system has been developed, and this two-color original electronic transmission system is used in nine examples.

Considering the purpose of returning the proof after proofreading, it is sufficient for the publisher to send only the proofed portion to the printing company. Although it would be desirable to be able to do so, the currently known two-color document electronic transmission system does not allow selection of the desired portion to be electronically transmitted.

All parts that do not need to be transmitted electronically (for example, non-calibration parts) will also be transmitted electronically.

In this way, the parts of the two-color original that you would like to send electronically! Even for items that have been specified for 1 test, the current system involves electronically transmitting and printing wasteful data, making the transmission time longer than necessary, and the printing material on the receiving side is also not as good as normal. The same l and t as the original are required.

In view of the above-mentioned current problems, this invention provides that if a part of a two-color original where two colors (for example, red and black, red and blue, etc.) are mixed is the part desired to be transmitted by electronic transmission, only this part is to be transmitted by electronic transmission. year,
Other parts are excluded from the target of electronic transmission, and the transmitted data is compressed to shorten the transmission time, reduce unnecessary printing on the receiving side, and save on printing fees such as toner for printing. This is the purpose.

This invention will be explained in detail below.

FIG. 1 shows a schematic configuration of a transmitting device used in the present invention, and FIG. 2 shows a schematic configuration of a receiving device, and the present invention will be explained based on these drawings.

In FIG. 1, a two-color original 1 to be electronically transmitted is conveyed by a conveying device (not shown), and this two-color original 1 is transferred to a CCD.
The image sensor 11 scans in the main scanning direction (direction perpendicular to the transport direction) to read image signals.

According to the actual example, in order to distinguish between two-color images of a document, considering the spectral reflection characteristics of the two colors, the amount of reflected light from each color when the document is irradiated with light source A and Light source A13 and light source B14 are used so that there is a difference when irradiating light source B.
The light sources A and B have different emission wavelength bands, and while the original 1 is temporarily stopped, the light sources A and B are sequentially turned on.

The reflected light when irradiating the light source N and the light source B on the same scanning line of the original 1 is received by the CCD image sensor 11 and sent to the arithmetic circuit 1 as two time-series image signals via the reading unit 15.
6 is input. The arithmetic circuit 16 performs arithmetic processing based on the chronologically existing image signals when irradiated with light source A and image signals when irradiated with light source B, and discriminates between the two colors. This method obtains image data separated into colors.

Detailed literature has already been published about reading such a two-color original 1, and since it is well known, further explanation will be omitted here. In addition to the two-color original reading device shown in Fig. 1, a two-color original is illuminated with a light source that has light of all wavelengths in the visible light range as an emission spectrum, and two reflected lights are used as a two-color original using a half mirror or the like. The light is then passed through a color separation filter to separate the two colors into components that can be read, or the light is separated through a dichroic mirror, and each of these lights is received by a separate CCD image sensor to read the two colors of the original. It may depend on the method of discrimination. An example of the two-color original 1 according to the present invention is shown in FIG. This two-color manuscript 1 is a proof copy of printed text with corrections, additions, deletions, etc. added by the publisher, etc. In this case, printed characters 2 are black (basic color) and 2 proof characters ( Symbol, mark) 3 is written in red C part color) and is composed of two colors, red and black.

In this invention, a closed curve 4 is drawn in red, which is a partial color, so as to surround the part desired for electronic transmission, that is, the part where 9 proofreading 3 has been written, on such a two-color original 1.0 The inner part of this closed curve 1194 is This is the area to be electronically transmitted in manuscript 1, so closed curve 4 should be filled in with a little margin so that not only the local area where calibration characters, symbols, etc. It is preferable.

Note that A in FIG. 9 indicates the conveyance direction of the original. When such an original 1 is supplied, the following processing is performed in the arithmetic circuit 16 of the above-mentioned transmitting device.

That is, as shown in FIG. 4, first, a command to scan the original 1 line/scan is given to the CCD image sensor 11 (step Sl), and the CCD image sensor 11 scans the two-color original 12 lines/scan according to this signal. The image signals of the two colors read (in this example, the red signal and the black signal)
It is determined whether there are red lights at two or more locations at intervals (step S2). If there are no red signals at two or more locations at intervals, the image signal for that 1 lie/line is not transmitted electrically, and is converted into paper feed code data (step 54).If there are red signals at two or more locations at two intervals,
Since it can be considered that the closed curve 4 exists on that line, the image signal of the part sandwiched between the red signals at both the left and right ends (basically the red signals by the closed curve 4) is used as the data to be transmitted (step S3), and in each of these cases, paper feed code data or image signal data is transferred to the transmission control section 18 (step S5).

Note that, as is clear from this process, the line where the apex of the closed curve exists has one red light or two or more consecutive red lights, and is therefore excluded from the transmission target.

When the above-described processing is completed, it is determined whether or not scanning of the original 1 has been completed (step S6), and if it has been completed, this processing is terminated. By performing this kind of processing on the read image signals, only when there are two or more red signals at intervals in one line, the image signals sandwiched between the red signals at both the left and right ends are transmitted as electrical transmission data. If there is no red signal, only paper feed code data is transferred to the transmission control section 18. When the transmission control unit 18 receives the paper feed code data, it directly sends the paper feed code data to the modem unit 22 in the same way as when detecting a blank sheet.

The modem section 22 modulates the paper feed code data in a form suitable for the telephone line under the control of the transmission procedure control section 20, or synchronizes with the receiving side and transmits it to the line interface 23.
, and only the paper feed code is electronically transmitted to the receiving device.

On the other hand, when the image signal data is transferred to the transmission control section 18, this data is collected in blocks and transferred to the modem section 22 [7, The modem section modulates and modulates the data under control from the transmission procedure control section 20. Alternatively, the data is sent to the line interface 23 in synchronization with the receiving side, and the data is electronically transmitted from the 9 line interface to the receiving device.

The transmission control section 18 also functions to control so that image reading, document conveyance, paper feed data, or image signal data transfer can be operated in a synchronized state. controls the conveyance of the document 1, and the electronic transmission procedure control section 20 controls the transfer of signals to the receiving device. In addition, the operation unit 21 is provided for giving commands to operate the transmitting device. By adopting such a method, the transmission data can be minimized in the transmission target area specified by the closed curve 4. This greatly reduces the time required for data transfer.

In addition, as shown in FIG. 2, in the receiving device, the line interface 31 receives data transmitted from the above-mentioned transmitting device, demodulation and synchronization are performed in the modem section 32, and the data is received. It is sent to the control section 33. When the image signal data is transferred, the reception control section 33 transfers the image signal data to the two-color electrostatic recording section 35, and instructs the mechanism control section 34 to convey the paper in synchronization with this. A paper feed signal is sent from the mechanism control section 34 to the two-color electrostatic recording section 35. Based on these signals, the two-color electrostatic recording section 35 performs two-color printing corresponding to the two colors of the document.゛When only paper feed code data is transferred from the sending device.

Machine rflll control unit: (Only the paper feed signal is sent from 4 to the two-color electrostatic recording unit 35, and only the paper is sent without any printing. Only when this paper feed signal is received, the paper is fast-forwarded. It is also possible to have a possible configuration.

Note that the printing method is not limited to the electrostatic recording method, and a variety of recording methods such as thermal paper recording, thermal transfer recording, and inkjet methods can be applied. It is input from the operation unit 36.

In this embodiment, a character print after proofreading was used as a two-color original, but the present invention is not limited to this, and other two-color originals are used.
A color original can also be used. However, this invention has little effect on documents in which two colors are evenly mixed over the entire surface.

As described above, according to the present invention, the area to be electronically transmitted in a two-color document is specified, and only the characters, etc. existing in this area are transferred from the transmitting device to the receiving device.

For other areas, the configuration is such that only the paper feed code is transferred without sending image data, which reduces the image data transfer time that occupies most of the time required for electrical transmission, reducing electrical transmission time. In addition, since only the necessary parts are printed on the receiving side, the amount of printing material can be reduced.Furthermore, even in areas that are not printed, paper is only fed, so the positional relationship of the original is not damaged. It is something to play.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention. Fig. 1 is a schematic diagram of the transmitting device, Fig. 2 is a schematic diagram of the receiving device, Fig. 3 is an explanatory diagram of a two-color original, and Fig. 4 is a flowchart showing the processing procedure. color manuscript
2...Printed characters 3...Proofreading characters. Symbols, etc. 4...Closed curve patent applicant Kazuo Suzuki, Representative of Toppan Printing Co., Ltd.' Figure 1 Niji 1ri 1

Claims (1)

[Claims] 1) Characters and symbols occupying a large portion of the manuscript. In a method of electronically transmitting a document in which characters, symbols, images, etc. are partially arranged in a color (partial color) different from the color composing the image (basic color), the same color as the partial color is used. A closed curve is drawn on the document so as to surround the partially arranged characters, symbols, etc. 2 images, etc., and the document is read line by line to detect the presence or absence of a partial color in that line, and the partial color is detected at intervals. If there are two or more locations, the image signal of the area sandwiched by the partial colors on both the left and right ends of that line is electronically transmitted, and if the partial colors are not present at two or more locations at an interval, then for that line. A two-color document electronic transmission method characterized by electrically transmitting only a paper feed signal to advance printing paper by one line.