JPH11284793A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To preclude the possibility of dividing an original carelessly or of causing useless space on recording paper due to an edit such as compression in the case that a transmitter side sends an original of plural pages and of different paper sizes. SOLUTION: A space detection section 4 uses data registered in a library 11 based on original size information obtained from a modem section 2 through a communication protocol, counts a prescribed consecutive white pixels within a range, and calculates a rate of white pixels in one original. A size decision circuit 5 decides at what paper size image data by one page are to be printed based on data denoting a rate of white pixels obtained from the space detection section 4 and informs a paper selection section 7 of it. Furthermore, a recording position setting section 6 corrects the data to be printed in the middle of paper according to a required amount within the original size decided by the size decision circuit 5 when a space of the original is deviated within a range of the recording paper size.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a facsimile apparatus, and more particularly, to a facsimile apparatus having a plurality of recording paper cassettes of different paper sizes.

[0002]

2. Description of the Related Art Many conventional facsimile apparatuses have a plurality of recording paper cassettes of different paper sizes, and when a document sent from a transmission side is received, a transmission document is not transmitted. It has the feature that printing is performed on the same paper size as.

When there is no recording paper of the same paper size as the transmission document, some conventional facsimile machines include, for example, A4
When there is only size recording paper and a B4 size original is received, 2
When recording is performed by dividing the document into more than one sheet, the number of lines of the original document is counted on the receiving side, paper is selected so that the blank amount of the last page is minimized, the size type is notified to the transmitting side, and transmitted. There is known a facsimile apparatus which performs editing on the side (Japanese Patent Application Laid-Open No. 1-198176).

Further, in order to minimize the waste of recording paper on the receiver side, the contents of a plurality of pages of the received original are printed on one recording paper by using non-standard frames established between the proprietary devices. When synthesizing, the content of the read original is temporarily stored in the memory, at least the original length information of each transmitted original is detected, and the recording paper size used by the receiver detected by the handshake and the above original length information A facsimile apparatus having means for processing transmission data into transmission data subjected to page synthesis when it is determined that page synthesis can be performed based on the above-described method is also conventionally known (Japanese Patent Laid-Open No. Hei 5 (1993) -105). 63958).

[0005]

However, since the former facsimile apparatus among the above-mentioned conventional facsimile apparatuses has a configuration in which the number of lines of a document is counted on the receiving side, the amount of characters and the whiteness relative to the actual paper size are reduced. The pixel amount is unclear, and as a result, the document may be inadvertently divided or an edit such as compression may be performed, resulting in unnecessary blank space on the recording paper.

On the transmitting side, if all the originals of a plurality of pages are not the same paper size and the originals have different paper sizes and character amounts for each page, the transmitting side performs a line check to confirm the paper size. However, the number of communications from the receiving side increases, which causes a problem in terms of communication fees.

Further, in the latter conventional facsimile apparatus, since the transmitting side combines pages, the burden on the transmitting side is large, and in the handshake, the transmitting side knows the recording paper size of the receiving side and determines the size of the recording paper. Because the pages are combined based on the total original length information of all the pages of the transmission original so as to minimize the number of recording paper sheets, if the transmission side sends originals of multiple pages with different paper sizes, Depending on the contents of the original, the image of the original may be damaged.

[0008] The present invention has been made in view of the above points,
It is an object of the present invention to provide a facsimile apparatus capable of recording an image on a recording sheet having a size smaller than the size of a transmission original at the same magnification.

Another object of the present invention is to provide a method for transmitting an original of a plurality of pages having different paper sizes on the transmitting side.
It is an object of the present invention to provide a facsimile apparatus capable of performing efficient recording without increasing a communication fee.

Further, another object of the present invention is to provide a method for transmitting a plurality of pages of originals having different paper sizes on the transmission side.
An object of the present invention is to provide a facsimile apparatus capable of receiving and recording without damaging the image of the contents of a transmission original.

[0011]

According to the present invention, in order to achieve the above-mentioned object, while exchanging a communication protocol with a transmission side, demodulation of modulated image information from the transmission side and outputting image data, Modem means for outputting document size information included in the communication protocol, storage means for storing image data from the modem means, margin pattern information based on various document size differences, margin size information and document length. A library in which data including horizontal / horizontal information is registered in advance and a margin state of image data extracted from the storage unit for each page of the original are detected by referring to original size information from the modem unit and library data. The paper size for recording the image data from the storage unit at the same size on the recording paper having the minimum margin state detected is determined. Determining means for setting a recording position; selecting means for selecting a recording paper cassette having a paper size determined by the determining means from a plurality of recording paper cassettes having different paper sizes; And printing means for printing the image data from the storage means on the recording paper of the recording paper cassette selected by the selection means at the same magnification based on the position.

Further, according to the present invention, the above-mentioned determining means determines the page blank state of each received document based on the image data taken out of the storage means by referring to the document size information from the modem means and the data of the library. A margin detection unit that detects and outputs data indicating the detected margin state together with data including the margin dimension information and the portrait / landscape information of the document, and receives the output data of the margin detection unit to minimize the margin state. Determine the paper size and notify the selection means,
A size determination circuit that outputs the print start position and print position correction data; and an adjusting unit that adjusts the print start position and print position by the printing unit based on the print start position and print position correction data from the size determination circuit. It is characterized by the following.

According to the present invention, the margin state of each page of the document is detected by referring to the document size information from the modem means and the data of the library based on the image data retrieved from the storage means, and the detected margin state is minimized. Since the paper size for recording the image data from the storage unit at the same size on the recording paper of the size is determined and the recording position is set, the size is smaller than the transmission original size. Can be recorded on a single piece of recording paper.

Further, in the present invention, the determination of the size of the recording paper and the setting of the recording position are performed in units of one page based on the document size information of the communication protocol sent from the transmitting side.
Because the sending side sent originals of multiple pages with different sizes,
On the receiving side, such a phenomenon that the originals of a plurality of pages are all recorded in the maximum size or reduced and recorded can be prevented.

[0015]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus according to the present invention. In FIG. 1, a network control unit (NCU) 1 is connected to a general line, receives modulated image information including a communication protocol transmitted from a transmission side via the general line, and sends it to a modem unit 2. input.

The modem unit 2 demodulates the modulated image information from the transmitting side while exchanging the communication protocol with the transmitting side, and supplies the obtained image data (image data) to the image storing unit 3 for storage. I do. The communication protocol here is a normal facsimile procedure. The exchange of the communication protocol with the transmission side performed by the modem unit 2 includes the document size information sent from the transmission side, and the modem unit 2 sends the document size information to the margin detection unit 4. Supply.

On the other hand, the image data stored in the image storage unit 3 is supplied to the printing unit 8 and printing is started on recording paper after waiting for a printing instruction from the control unit 10. Supplied. The margin detection unit 4 uses the data registered in the library 11 in the image data received from the image storage unit 3 based on the document size information received from the modem unit 2 to generate a continuous image within a certain range. The calculated white pixels are counted, the ratio of white pixels in one document is calculated, and the information is output to the size determination circuit 5.

In the library 11, various document size differences are registered. In addition to the difference in paper size, for example, the difference in size when B4 paper and A4 paper are set in a facsimile machine, A3 A within paper size
If the paper size is larger than necessary, such as when four papers are placed sideways or when the A4 papers are shifted and set in the facsimile machine, the range information of the blank area that is considered to be generated, Information is registered that predicts how to place a document to be set on the scanner table of the apparatus to some extent.

The size determining circuit 5 determines the size of the image data for one page to be printed on which paper size based on the data indicating the ratio of the white pixels obtained from the margin detecting unit 4. The information is transmitted to the selection unit 7. The recording paper cassette 9
Necessary for printing the image data in the printing unit 8;
It is composed of a plurality of cassettes each containing recording paper of a plurality of paper sizes. The paper selection unit 7 instructs the recording paper cassette 9 to select a cassette that stores recording paper of a paper size to be printed.

The size determination circuit 5 includes a margin detection unit 4
Based on the data obtained from, the print start position and the print position of the image data are adjusted in addition to specifying the paper to be recorded, so that it is possible to determine whether printing in a size smaller than the original size information is possible. If it is determined that the above is true, the recording position adjustment unit 6 is instructed to that effect.

The recording position setting unit 6 creates data for adjusting the printing start position and the printing position of the image data, and sends the data to the control unit 10.
Is instructed to the printing unit 8 through the. The printing unit 8 refers to the data input from the control unit 10 and converts the image data from the image storage unit 3 into printable image data.
Printing on the recording paper in the selected recording paper cassette 9 is started.

Next, the operation of the main part of the embodiment of FIG. 1 will be described in more detail with reference to FIGS. The operation of the flowchart shown in FIG. 3 is performed for each page.
As described above, the exchange of the communication protocol with the transmitting side performed by the modem unit 2 includes the document size information sent from the transmitting side, and the modem unit 2 detects this and detects A4, Document size information such as B3 and B4 is supplied to the margin detection unit 4.

The document size information included in the exchange of the communication protocol corresponds to the position of the sheet alignment guide on the document set table on the transmitting side, and is transmitted in the first page of the transmitted document. Therefore, even when documents of different sizes are transmitted, this document size information is not transmitted for each page, but only when the first one page of the document is transmitted. However, when transmitting documents of different sizes, the position of the paper alignment guide on the document set table is usually adjusted to the position of the largest size. In this case, the largest size is obtained as document size information. Is usually the case.

The margin detecting unit 4 detects how many millimeters the original size is based on this original size information (steps 21 and 22 in FIG. 3). Further, the margin detection unit 4 receives the image data (image data) from the image storage unit 3 (Step 23 in FIG. 3), and for any one line in the main scanning direction,
The number of continuous white pixels is checked (step 24 in FIG. 3), and also the number of continuous white pixels in the sub-scanning direction is checked (step 25 in FIG. 3).

In step 24, any one line in the main scanning direction is set. For example, the number of continuous white pixels is checked for each of three lines separated by a certain interval in the sub-scanning direction. Thereby, the margin detection unit 4
Detects the size of the image data from the line having the smallest number of continuous white pixels and the number of continuous white pixels in the sub-scanning direction among the above three lines of white pixels of the image data from the image storage unit 3. (Step 26 in FIG. 3). At this time,
The size value (unit: mm) is obtained by the product of the density of one pixel (unit: mm) and the number of continuous white pixels.

Subsequently, the margin detecting section 4 calculates a difference value X by subtracting the size information of the image data obtained in step 26 from the document size information obtained in step 22 as data indicating the ratio of the white pixels. (Step 2 in FIG. 3)
7) When the difference value X is larger than 0 (that is, when the document size information is larger than the size of the image data), the pattern is determined with reference to the library 11 to grasp the blank portion. (Step 2 in FIG. 3)
8, 29).

Here, various paper size differences are registered in the library 11 in advance. For example, when only A4 size characters and image data exist on A3 size paper, blanks (white pixels) may occur. That is, as shown in FIG. 2A, the first page of the received document is an A3 size vertical document 15 long in the sub-scanning direction, and the second page is an A4 size horizontal document 16 or an A4 size vertical document. When the protocol information is in the A3 size of the first page, such as when the original 17 and the third page are the A3 size portrait document 18, a blank space is generated in the second page.

In this case, the blank area that can exist is
As shown in FIG. 2B, a data area of A4 size is placed in the horizontal direction with respect to the sub-scanning direction. ) And a data area of A4 size is placed in the vertical direction with respect to the sub-scanning direction, and has a width b in the main scanning direction and a length a in the sub-scanning direction, as shown in FIG. As shown in the blank area (pattern B) and FIG.
The data area corresponding to the size is vertical in the sub-scanning direction,
In addition, there is a blank area (pattern C) when placed at the center of the original set table, and information on these blank areas is registered in the library 11 in advance.

The above-described pattern C is used when the transmission original is read by the scanner when the position of the paper alignment guide on the original set table, which is the basis of the original size information of the communication protocol, is adjusted to the A3 size. Regardless, A4
In the case where the size document is set at the center, there is shown an example of a blank area where there is no information to be read as a result, and the dimension data a, b and c at that time are registered in the library 11.

In step 29 described above, the margin detection unit 4 verifies, one by one, which of the patterns registered in the library 11 is similar to the margin state of the received document. The data of the similar pattern, the dimension data of the similar pattern, and the morphological information such as the portrait and landscape orientation of the document are output to the size determination circuit 5.

Based on the data obtained from the margin detecting section 4, the size determining circuit 5 determines which range in the image data of one page finally exists in the image accumulating section 3 in which image data. A determination is made as to whether printing should be performed using the size, the paper size is determined, and a notification to that effect is given to the paper selection unit 7 (step 30 in FIG. 3). Paper selection section 7
Selects the recording paper cassette 9 of the designated paper size among the recording paper cassettes 9 and outputs a paper selection completion instruction to the control unit 10.

The size determination circuit 5 includes a margin detection unit 4
In order to print only the required image data in the center of the recording paper, use the dimensional data in the data obtained from the above and the morphological information data such as the portrait and landscape orientation of the document as print position correction information. Is generated and output to the recording position adjustment unit 6 (step 3 in FIG. 3).
1). That is, in the margin detection unit 4, if the margin of the document is biased within the range of the recording parallax, the size determination circuit 5 determines the required amount within the selected document size.
The recording position setting unit 6 is urged to start the printing operation after performing the correction so that the printing is performed at the center of the recording paper.

The recording position setting unit 6 creates print start position and data for adjusting the print position of image data based on the input print position correction data, and instructs the printing unit 8 through the control unit 10. The printing unit 8 transmits the image data from the image storage unit 3 to the sheet selection unit 7 input through the control unit 10.
With reference to the paper selection completion instruction from the printer and the data from the recording position setting unit 6, the printing is started on the recording paper in the selected recording paper cassette 9 in a state where the image data is printable (step 32 in FIG. 3). ). As a result, the image data is printed at the same size on recording paper of the paper size having the least margin.

On the other hand, when the margin detecting section 4 determines that the difference value X obtained in step 27 is 0 or less (step 33 in FIG. 3), the data indicating the fact and the document size information data are converted into a size determining circuit. Output to 5 Size determination circuit 5
Determines the paper size corresponding to the document size indicated by the document size information data in the data based on the data input from the margin detection unit 4 and instructs the paper selection unit 7 to that effect (see FIG. 3). Step 34). The paper selection unit 7 selects the recording paper cassette 9 of the designated paper size among the recording paper cassettes 9 and outputs a paper selection completion instruction to the control unit 10.

The printing unit 8 refers to the image data from the image storage unit 3 with reference to the sheet selection completion instruction from the sheet selection unit 7 input through the control unit 10 and selects the image data as printable image data. Printing is started on the recording paper in the recording paper cassette 9 (step 35 in FIG. 3). As a result, the image data is printed at the same size on a recording sheet having a sheet size corresponding to the document size information obtained by the communication protocol.
Also, when receiving originals of multiple pages with different sizes,
Normally, the document size information obtained by the communication protocol is usually set to the largest document size among the received documents, so even though the difference value X may become 0 in step 33, It is not usually negative.

As described above, according to the present embodiment, the recording paper having the smallest margin per page of the transmission document is determined based on the document size information included in the exchange of the communication protocol transmitted from the transmission side. Since the size is determined and the recording position is set, the image data can be economically printed without waste on recording paper with a smaller margin than the size of the transmission original, and it is printed at the same size. Side sends multiple pages of documents of different sizes, so that they are not printed on the maximum size of recording paper or reduced image data are printed, and therefore printing without damaging the image of the transmitted document it can.

The present invention is not limited to the above embodiment, and various other embodiments are conceivable. For example, in the above-described embodiment, the margin detection unit 4 measures the amount of white pixels, and performs margin detection with reference to possible patterns of the margin registered in the library 11 based on the amount of white pixels. Attention may be paid to the pixels, and the margin detection unit 4 and the size determination circuit 5 may determine the paper selection using only the black pixel amount or the black pixel amount together.
When both the black pixel amount and the white pixel amount are used, for example, the number of black pixels may be counted if the type has many characters such as a newspaper, and the number of white pixels may be counted if the document is sparse.

When measuring the amount of black pixels, it is possible to extract the changing points of white pixels and black pixels in a certain fixed line unit in the main scanning direction, and to grasp the black pixel range when one page has been completed. Conceivable. Also, in the case where there is no black pixel, for example, in the case of a color image image, it can be understood that the boundary between the three primary colors and the white pixel is extracted in the same manner.

The recording position setting section 6 adjusts the position of characters, images, and the like to the center of the selected sheet. In addition to this, taking into account that electronic filing is performed, A function of converting the image into an erect image may be provided by reversing and rotating the image. In this case, in addition to printing on recording paper, the printing unit 8 may be provided with a function that can be printed or filed in a state of being digitized as image data.

The library 11 may have a learning function. If the combination of the communication protocol information and the information obtained by the margin detection unit 4 does not exist in the existing pattern, a message to that effect is displayed on an operation panel or the like, and a printing method is started after requesting a treatment method from the operator. Such a function may be provided.

[0041]

As described above, according to the present invention,
Based on the image data extracted from the storage means, the margin state of each page of the document is detected with reference to the document size information obtained by exchanging the communication protocol and the data of the library, and the size of the detected margin state is minimized. Determine the paper size for recording the image data on the recording paper at the same size,
In addition, by setting the recording position, the original document is recorded at the same size on recording paper having a size smaller than the size of the transmission original, so that printing of a wasteful received document having a large amount of blank space is prevented, and the cost is reduced. Printing can be performed, and the image of the document content of the transmission document can be prevented from being damaged.

According to the present invention, the determination of the recording paper size and the setting of the recording position are performed in units of one page based on the document size information of the communication protocol sent from the transmitting side. Because a document with a different page size was sent, the document on the receiving side is recorded at the maximum size, or reduced and recorded even though there are pages that can be printed at the same size. Can prevent the phenomenon,
Editing such as inadvertent division or compression of the original is not performed carelessly, and printing can be performed without damaging the image of the content of the transmitted original.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a diagram illustrating data stored in a library in FIG. 1;

FIG. 3 is a flowchart for explaining the operation of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Network termination unit (NCU) 2 Modem part 3 Image storage part 4 Margin detection part 5 Size determination circuit 6 Recording position setting part 7 Paper selection part 8 Printing part 9 Recording paper cassette 10 Control part 11 Library

Claims (6)

[Claims] And a modem for outputting image data by demodulating modulated image information from the transmission side while exchanging a communication protocol with the transmission side, and outputting document size information included in the communication protocol. A storage unit for storing image data from the modem unit; data on a pattern including margin pattern information based on differences in various document sizes; data on a margin size and information on a document placed vertically and horizontally. A library, and based on the image data retrieved from the storage unit,
The margin state of each page of the received document is detected by referring to the document size information from the modem unit and the data of the library, and the detected margin state is recorded on the recording paper having the minimum size by the storage unit. Determining a paper size for recording the image data of the same size at the same size, and setting a recording position; and a paper size determined by the determining means from a plurality of recording paper cassettes of different paper sizes. Selecting means for selecting the recording paper cassette, and printing the image data from the storage means on the recording paper of the recording paper cassette selected by the selecting means at the same magnification based on the recording position set by the determining means. A facsimile apparatus comprising a printing unit. 2. The method according to claim 1, wherein the determining unit detects a margin state of the image data extracted from the storage unit for each page of the received original document by referring to the original size information from the modem unit and the data of the library. A margin detection unit that outputs the data indicating the detected margin state together with data including the margin dimensional information and the portrait / landscape information of the document, and receives the output data of the margin detection unit, and the margin state is received. A size determination circuit that determines a minimum paper size and notifies the selection unit, and outputs a print start position and print position correction data, based on the print start position and print position correction data from the size determination circuit. 2. A facsimile apparatus according to claim 1, further comprising adjusting means for adjusting a printing start position and a printing position by said printing means. Place. 3. The margin detecting section counts the number of continuous white or black pixels of an arbitrary line in the main scanning direction of the image data extracted from the storage section for each page of the received document. The size of the image data was measured from the maximum value of the number of pixels or the minimum value of the number of black pixels, and the number of continuous white or black pixels in the sub-scanning direction, and the document size information obtained from the modem means was measured. Compare the size of the image data, if the size of the image data is larger than the document size information, referring to the data of the library, data indicating a similar margin pattern,
The size information is output to the size determination circuit together with the size information of the margin pattern and the vertical / horizontal orientation information of the original. The size determination circuit, when receiving the dimension information of the margin pattern and the information of the document placed vertically and horizontally from the margin detection unit, determines the paper size that minimizes the margin state, and selects the paper size. Output the print start position and print position correction data, and when receiving the data indicating the document size information, determine the document size as a paper size and notify the selection means. The facsimile apparatus according to claim 2, wherein 4. The facsimile apparatus according to claim 3, wherein the margin detection unit measures the size of the image data using both the number of white pixels and the number of black pixels. 5. A facsimile apparatus according to claim 2, wherein said adjusting means has a function of converting the image data into an erect image by inverting and rotating the image data. 6. When there is no margin pattern similar to the library, a display is made on the operation panel, a request for a treatment method from an operator, and printing by the printing means in accordance with the treatment method. 3. The facsimile apparatus according to claim 2, wherein: