JP2000278489A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To match image directions of the front side and rear side of an original, while saving labor for designating how to set the original to a user by discriminating how to set the original (the direction of images on the original) in accordance with a detected original size. SOLUTION: A user designates whether an original 3 is lengthwise binding or breadthwise binding. At paper feeding, a main scanning width X and a sub- scanning length Y of the original 3 are detected and preserved by a width sensor 18 and an original length sensor 19. Next, the surface of the original 3 is scanned by an image reader 10, and images on the surface are not rotated full but are stored in an SAF 25. Then, the original 3 is inverted and paper is supplied onto contact glass 9 again. In that case, the preserved main scanning width X and sub-scanning length Y are compared and when the main scanning width X is greater (X>Y), 'lateral setting' is regarded, and in the case of lengthwise binding at such a time, read images (image data) are transferred to the SAF 25 and stored without being rotated but in the case of breadthwise binding, read images are rotated by 180 deg., transferred to the SAF 25, and stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus having a function of reading and transmitting images on the front and back sides of a double-sided document, respectively.

[0002]

2. Description of the Related Art In recent years, manuscripts used in office work have been heavily used, and demands for resource saving and cost reduction have increased the use of double-sided copying when copying manuscripts. Along with this, there has been an increasing demand for transmitting and receiving double-sided originals by facsimile. So, ADF
A facsimile machine having a function of reading and transmitting images on the front and back sides of a document using a reversing mechanism of an (Auto Document Feeder) has already been put into practical use. However, depending on how to bind double-sided originals,
There is a problem that the direction of the image is reversed between the front side and the back side during transmission.

As a means for solving this problem, a method of rotating the back surface by 180 degrees in accordance with the binding method of a document is disclosed in Japanese Patent Application Laid-Open Nos. 8-88861 and 9-289561.
No. 6,009,045. More specifically, JP-A-8-
Japanese Patent No. 88761 discloses a method of designating the orientation and binding direction of an image of a document and determining whether to rotate the document 180 degrees based on the direction and the binding direction. However, if the size of the document can be detected, the direction of the image of the document can be determined from the size of the document, so there is no need to specify the direction of the image of the document.
In this regard, the user has to perform extra operations. Japanese Patent Application Laid-Open No. 9-289561 discloses a method of determining whether to rotate by 180 degrees depending on whether vertical binding or vertical binding or horizontal binding with horizontal binding. Have been. However, in that case, the way of placing the document (the direction of the image of the document) is limited to one direction. Also, it is assumed that the binding is performed on the left and right. For this reason, the original may be placed in another direction (for example, if the short side of the original is limited to being placed in the main scanning direction, the long side of the original may be placed in the main scanning direction). On the other hand, for a document bound up and down, the image direction is reversed on the front side and the back side.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and provides a user with a method of determining a document placement (orientation of a document image) according to a detected document size. It is an object of the present invention to provide a facsimile apparatus that can match the image direction between the front and back sides of a document while saving the trouble of specifying how to place the document. The purpose of each claim of the present application is described in detail below.

[0005] An object of the present invention is to store a read image on the back side of a two-sided original without rotating it, or to store the read image on the back side of the two-sided original without rotating it, in order to prevent the image transmission direction of the two-sided original from being reversed on the front side / back side. When judging whether to rotate and accumulate by vertical / horizontal placement and long / short binding, by judging whether the document is to be placed vertically or horizontally based on the detected size of the document, the user can determine whether the document is to be placed vertically or horizontally. It is an object of the present invention to provide a facsimile apparatus that can omit selection, reduce the user's operation time, and can match the transmission direction on the front and back sides of all originals even when originals of different sizes are mixed.

It is another object of the present invention to store the read image of the back side of the two-sided original without rotating it in order to prevent the image transmission direction of the two-sided original from being reversed between the front side and the back side. An object of the present invention is to provide a facsimile apparatus provided with a new selection method of determining whether to rotate and accumulate a document in portrait / landscape, left / right / up / down, and portrait / landscape originals.

A third object of the present invention, in addition to the object of the second embodiment, is to determine whether the document is to be placed vertically or horizontally from the detected size of the original, thereby eliminating the user's selection between the portrait and landscape orientations and allowing the user to perform the operation. It is an object of the present invention to provide a facsimile apparatus which can reduce the time and effort and can adjust the transmission direction on the front and back sides of all originals even when originals of different sizes are mixed.

In order to prevent the image transmission direction of the double-sided document from being reversed between the front side and the back side, an object of the present invention is to store the read image on the back side of the double-sided document by rotating it by 90 degrees. When judging whether to rotate and accumulate by vertical / horizontal and longitudinal / horizontal binding, the user determines whether the document is to be placed vertically or horizontally based on the detected size of the document, thereby allowing the user to place the document vertically or horizontally. The present invention provides a facsimile apparatus which can omit the selection of a document, reduce the operation of the user, and can adjust the transmission direction on the front and back sides of all originals even when originals of different sizes are mixed.

In order to prevent the image transmission direction of the double-sided document from being reversed between the front side and the back side, an object of the present invention is to store the read image on the back side of the double-sided document by rotating it by 90 degrees. It is an object of the present invention to provide a facsimile apparatus provided with a new selection method of determining whether to accumulate by rotating the document vertically or horizontally, open horizontally, open vertically, and determine whether the document is portrait or landscape.

[0010] The object of claim 6 is to add to the object of claim 5, by judging whether the document is placed vertically or horizontally from the detected size of the document, so that selection of the portrait or landscape by the user can be omitted and the operation of the user can be performed. It is an object of the present invention to provide a facsimile apparatus which can reduce the time and effort and can adjust the transmission direction on the front and back sides of all originals even when originals of different sizes are mixed.

[0011]

According to a first aspect of the present invention, there is provided a facsimile apparatus, comprising: reading means for reading images on both sides of a document;
Rotating means for rotating the document by 0 degrees, detecting means for detecting certain information (for example, document size (width, length), etc.) of the document; and a certain characteristic (for example, document type) in accordance with the information detected by the detecting means. How to place (vertical / horizontal) etc.)
Determining means for determining the binding direction of the document, a characteristic determined by the determining means, a binding direction selected by the selecting means, and whether the document is a front side or a back side, And a deciding means for deciding whether or not to use the rotating means for an image.

According to a second aspect of the present invention, there is provided a facsimile apparatus, comprising: reading means for reading images on both sides of a document; rotating means for rotating the read image by 180 degrees; Selecting means for selecting a manuscript or a landscape document, and information on the orientation, opening direction, portrait or landscape document of the manuscript selected by the selection means, and whether the manuscript is front or back, And a determining means for determining whether to use the rotating means.

According to a third aspect of the present invention, there is provided a facsimile apparatus, comprising: reading means for reading images on both sides of a document; rotating means for rotating the read image by 180 degrees; and certain information (for example, size (width, length) of the document) ), Selecting means for selecting the document opening direction and whether the document is a portrait document or a landscape document, and certain characteristics (for example, document placement) according to the information detected by the detection means. (For example, portrait / landscape)), the characteristics determined by the determination means, the opening direction selected by the selection means, information on whether the document is portrait or landscape, and whether the document is front side A determination unit that determines whether to use the rotation unit for the image of the document depending on whether it is on the back side.

According to a fourth aspect of the present invention, there is provided a facsimile apparatus, comprising: reading means for reading images on both sides of a document; 90-degree rotating means for rotating the read image by 90 degrees; and 270-degree rotating means for rotating the read image by 270 degrees. , Certain information on the document (eg, document size (width, length)
), A determination unit for determining a certain characteristic (for example, how to place a document (vertical placement / horizontal placement), etc.) according to information detected by the detection means, and a binding direction of the document are selected. The 90-degree rotation unit or the 270-degree rotation unit is used for the image of the original, depending on the selection unit to be used, the characteristics determined by the determination unit, the binding direction selected by the selection unit, and whether the original is the front or back surface. And a determination means for determining whether or not there is an error.

According to a fifth aspect of the present invention, there is provided a facsimile apparatus, comprising: reading means for reading images on both sides of a document; 90-degree rotating means for rotating the read image by 90 degrees; and 270-degree rotating means for rotating the read image by 270 degrees. Selecting means for selecting the orientation of the document, the opening direction of the document, and whether the document is a portrait document or a landscape document; and information on the orientation, opening direction, and whether the document is portrait or landscape document selected by the selection means. , And whether the original is front or back
And a determination unit for determining whether to use the 90-degree rotation unit or the 270-degree rotation unit for the image of the document.

According to a sixth aspect of the present invention, there is provided a facsimile apparatus, comprising: reading means for reading images on both sides of a document; 90-degree rotating means for rotating the read image by 90 degrees; and 270-degree rotating means for rotating the read image by 270 degrees. , Certain information on the document (eg, document size (width, length)
Detecting means for detecting the opening direction of the document and whether the document is a portrait document or a landscape document, and certain characteristics (for example, how to place a document (for example, Vertical / horizontal), and the like, and the characteristics determined by the determining means;
Depending on the opening direction selected by the selection means and whether the document is a portrait document or a landscape document, and whether the document is a front side or a back side, the 90-degree rotation means or 2
And a determining means for determining whether to use the 70-degree rotating means.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration and operation of a facsimile apparatus according to the present invention will be described below in detail with reference to the drawings. First, as an embodiment of the present invention, FIG. 1 shows a schematic configuration of an image reading section and a transmission section of a facsimile apparatus provided with an automatic document feeder (ADF) 1 having a reversing mechanism.
In FIG. 1, a document 3 placed on a document table 2 is fed by a feed roller 4, separated one by one by a separation roller 5 and a reversing roller 6, and fed onto a contact glass 9 by a feed roller 7 and a conveyance belt 8. Is fed up to At this time, the width (width in the main scanning direction: main scanning width) and length (length in the sub scanning direction: sub scanning length) of each fed document are detected by the width sensor 18 and the document length sensor 19. The detection information is transmitted to the processing unit 23 of the facsimile control unit 21 to determine the size of the document and how to place the document (vertical / horizontal). The processing unit 23 includes an arithmetic processing unit (CPU) including a microprocessor or the like, a control circuit,
It is composed of memories such as M and RAM, input / output circuits, etc., and controls the entire facsimile apparatus. In addition, it performs various determination processes such as document size, document placement (vertical / horizontal placement), and reads a read document image. Processing for determining whether to rotate or the like is performed.

The document 3 on the contact glass 9 is scanned by the image reading device 10, and the read image is stored in the memory 22 (page memory 2) of the fax control unit 21.
4 or SAF 25). The SAF 25 is an image storage memory, which is used as a stack for storing the read image of each page until transmission is completed, and the page memory 24 is used as a temporary storage area when rotating the image. Whether to rotate the image is determined by the determination of the processing unit 23. If the image is not rotated, the image is directly transferred to the SAF 25. In addition, image rotation (180 degree rotation, 90 degree rotation, 270 degree rotation)
Is performed, the image is temporarily transferred to the page memory 24, and then, as described later, the pixel data is read out from the address on the page memory 24 in a certain order and transferred to the SAF 25 to rotate the image. Then, the image transferred to the SAF 25 is compressed by the compressor 27 and transferred to the modem 28. The modem 28 modulates the transferred image signal and transmits the modulated image signal to a facsimile receiver as a communication partner via a communication line. Reference numeral 26 denotes an SRAM that stores control data, input information from the operation unit 29, detection information of the width sensor and the document length sensor, and the like.

In order to discharge the document on the contact glass 9 after reading the document image, the switching claw 14 is first set in such a way as to guide it to the discharge path 16, and then the transport belt 8 and the first discharge roller 11. The paper is discharged to the paper discharge port 13 by the second paper discharge roller 12. On the other hand, in order to turn over the original on the contact glass 9 and bring it back onto the contact glass 9, first, the switching claw 14 is set in a direction to guide it to the inversion path 17, and then the transport belt 8 and the first discharge The document is conveyed from above the contact glass 9 to the reversing path 17 by rotating the paper roller 11 and the reversing roller 15 counterclockwise as viewed from the front in FIG. Thereafter, at a timing when the rear end of the document comes to the right of the rightmost end of the transport belt 8, the transport belt 8 is rotated clockwise. As a result, the document on the reversing path 17 is reversed on the contact glass 9 from the right side of the transport belt 8 and re-fed. Here, the length of the reversing path 17 needs to be longer than the maximum length of a document that can be fed.

In order to read a double-sided document and store it in the SAF 25, first, the document 3 is
Feed up to Here, assuming that the front surface of the document table 2 is upward, the front surface of the document is directed to the contact glass 9 side when the document is fed to the contact glass 9. to scan. Then, as described above, the original is
Then, the document is reversed and fed again so that the back side of the document faces the contact glass 9 side. Then, the back surface is scanned by the image reading device 10. After that, the document is once inverted by the reversing path 17, and then discharged to the discharge port 13 by the second discharge roller 12 via the discharge path 16. The inversion is performed once in order to match the order in which the originals are stacked in the paper discharge opening 13. When the scanning of the front and back sides of one document is completed in this way, the second and subsequent documents remaining on the document table 2 are similarly fed, and the scanning of the front and back sides is performed.

Next, rotation of the image by 180 degrees, 90 degrees, and 270 degrees will be described. Here, in the page memory 24, one byte indicates data of one pixel,
From the start address, pixels on the first line, pixels on the second line,..., And pixels on the last line are each successively arranged in the main scanning direction. This is illustrated in FIG. In FIG. 2, the start address of the page memory 24 is S, and the number of pixels in the main scanning direction (the number of main scanning pixels).
Is W and the number of pixels in the sub-scanning direction (the number of sub-scanning pixels) is L, the interval between the addresses of the pixels at the same main scanning position on each line is W, and the addresses of the pixels at the beginning of the main scanning and the sub-scanning are S. , The address of the pixel at the end of the main scan and the head of the sub-scan is S +
W-1, the address of the pixel at the beginning of the main scan and the end of the sub-scan is S
+ W · (L−1), the address of the pixel at the rear end of the main scan and the rear end of the sub-scan is S + W · L−1. In the SAF 25, data of one pixel per byte is similarly stored at consecutive addresses.

First, the case where the image is rotated by 180 degrees will be described. In this case, after the image (pixel data) is temporarily stored in the page memory 24 from the image reading device 10, FIG.
The image (pixel data) is transferred from the page memory 24 to the SAF 25 according to the flow shown in the flowchart of FIG. Here, Ap is the transfer source address (page memory 24).
Is a variable indicating the transfer destination address (SA).
I) is a counter variable. In FIG. 3A, as the first address,
As ← SAF storage start address, Ap ← S + W · L−1
(The last end of the image in the page memory 24), and i is initialized to 0 (S101). Next, the data at the address indicated by Ap is transferred to the address indicated by As (S102). Thereafter, i and As are incremented by 1 and Ap is decreased by 1 (S103). This is repeated while i is smaller than WL (total number of pixels) (that is, WL times) (S104). In this way, as shown in FIG. 3B, the SAF 25 stores an image rotated 180 degrees with respect to the image in the page memory 24, that is, the image at the time of scanning by the image reading device 10.

Next, the case where the image is rotated 90 degrees counterclockwise will be described. In this case, after the image (pixel data) is temporarily stored in the page memory 24 from the image reading device 10, according to the flow shown in the flowchart of FIG.
Image (pixel data) from page memory 24 to SAF 25
To transfer. Here, Ap is a variable indicating the source address (address of the page memory 24), As is a variable indicating the destination address (address of the SAF 25), and i and j are counter variables. In FIG. 4A, the first address is As ← SAF storage start address and Ap ← S
+ W-1 (the rear end of the main scan and the top of the sub-scan of the image in the page memory 24), and i is initialized to 0 (S
201). Next, the following is repeated while i <W. First, j is initialized to 0 (S202). Next, the data at the address indicated by Ap is transferred to the address indicated by As (S20).
3). Thereafter, j and As are incremented by 1 and Ap is incremented by W (that is, a pixel that is advanced by one in the sub-scanning direction in the same column in the main scanning direction) (S204). This is repeated while j is smaller than L (the number of sub-scanning pixels) (that is, L times) (S20).
Five). When this repetition is completed, i is increased by 1 and Ap is changed to W
Decrease by L + 1 (that is, indicate the column one row back in the main scanning direction at the head of the sub-scanning) (S206). These conditions are performed while i <W (that is, W times, several times of main scanning pixels).
Repeat (S207). By doing so, FIG.
As shown in (b), the SAF 25 stores an image rotated by 90 degrees with respect to the image in the page memory 24, that is, the image at the time of scanning by the image reading device 10. In this case, since the image stored in the SAF is rotated by 90 degrees, the number of main scanning pixels is L (the number of sub-scanning pixels in page memory) and the number of sub-scanning pixels is W (the number of main scanning pixels in page memory). It must be noted that

Next, a case where the image is rotated 270 degrees counterclockwise (that is, a case where the image is rotated 90 degrees clockwise) will be described. In this case, after the image (pixel data) is temporarily stored in the page memory 24 from the image reading device 10, the image is read according to the flow shown in the flowchart of FIG.
Image (pixel data) from page memory 24 to SAF 25
To transfer. Here, Ap is a variable indicating the source address (address of the page memory 24), As is a variable indicating the destination address (address of the SAF 25), and i and j are counter variables. In FIG. 5A, the first addresses are As ← SAF storage start address, and Ap ← S.
+ W · (L−1) (main scanning start / sub scanning end of the image in the page memory 24), and i is initialized to 0 (S301). Next, the following is repeated while i <W.
First, j is initialized to 0 (S302). Next, the data at the address indicated by Ap is transferred to the address indicated by As (S303). Thereafter, j and As are incremented by 1 and Ap is decreased by W (that is, a pixel in the same column in the main scanning direction is returned by one in the sub-scanning direction) (S304). J is L
It repeats while it is smaller than (the number of sub-scanning pixels) (that is, L times) (S305). When this repetition is completed, i is increased by 1 and A
p is increased by W · L + 1 (that is, at the rear end of the sub-scan,
A row advanced by one in the main scanning direction is indicated) (S306).
These operations are repeated while i <W (that is, W times, the number of main scanning pixels) (S307). By doing this,
As shown in FIG. 5B, the SAF 25 stores an image rotated by 270 degrees with respect to the image in the page memory 24, that is, the image at the time of scanning by the image reading device 10. Also in this case, in the image stored in the SAF, note that the number of main scanning pixels is L (the number of sub-scanning pixels in page memory) and the number of sub-scanning pixels is W (the number of main scanning pixels in page memory). There is a need to.

Next, the orientation of the document image (portrait or landscape),
The opening direction of the two-sided document, the binding method, and the method of placing the document when setting the document on the ADF will be described. FIG. 6 shows an example of a portrait document and a landscape document. A document whose orientation is correct when the document is placed vertically is a portrait document, and a document whose orientation is correct when the document is placed horizontally is a landscape document. FIG. 7 shows an example in which a vertically long and a horizontally long double-sided original is opened horizontally and vertically. As shown in FIG. 3A, when the document is turned over around the left and right sides of the document, the document whose right and left sides are oriented correctly opens right and left, and as shown in FIG. When turned over around the side of,
A document whose front and back sides are oriented correctly is opened up and down. FIG. 8 shows an example of the longitudinal binding and the short binding of the portrait and landscape double-sided documents. As shown in FIG. 7A, when the original is turned over around the long side of the original, the original whose front and back sides are in the correct orientation is longitudinally bound, and as shown in FIG.
When the original is turned upside down around the short side of the original, the original with the front and back sides oriented correctly is short-hand binding.
When combined with portrait / horizontal originals, left / right / vertical opening, vertical / horizontal originals, horizontal / horizontal originals are longitudinally bound, portrait / horizontal originals and horizontal / horizontal originals are shorter. It becomes binding. FIG. 9 shows how to place a document on the ADF 1 shown in FIG.
(B) An example of horizontal installation is shown. The manner in which the document feeding direction matches the direction of the long side of the document is portrait orientation, and the manner in which the document feeding direction matches the direction of the short side of the document is landscape orientation.

Next, FIG. 10 shows the facsimile apparatus shown in FIG. 1 in which the ADF1 feeds a vertically long double-sided original which is left and right opened, and is fed vertically (a) and horizontally (b). 4A and 4B are diagrams respectively showing directions of main scanning and sub-scanning at the time of scanning an image on the front surface / rear surface when reading an image with. In the ADF 1 shown in FIG. 1, the rear side (upper side in the uppermost document diagram in FIG. 10A or 10B) at the time of sheet feeding is the leading end in the sub-scanning direction at the time of front side scanning. In addition, the inversion is performed around a side parallel to the main scanning direction as an axis. Therefore, since this document is a longitudinally bound document, when the long side of the document matches the main scanning direction, the scanning direction on the front and back sides matches, and when the long side of the document does not match the main scanning direction, In this case, the scanning directions on the front side and the back side are reversed. Accordingly, in the case of a vertically long double-sided original, the transmission direction is matched between the front and back sides.
When the image data is transferred from No. 4 to the SAF 25, the image data may be rotated by 180 degrees (when the image data is horizontally placed, the image data need not be rotated).

Next, FIG. 11 shows the facsimile apparatus shown in FIG. 1 in which a double-sided original which is vertically long and vertically opened is fed by the ADF 1 in a vertical position and a horizontal position in FIG. FIG. 3 is a diagram illustrating directions of main scanning and sub-scanning when scanning an image on a front surface / back surface when reading an image. At this time, the original is short-hand bound. In this case, to match the transmission direction on the front side and the back side, (b)
Only when the image is horizontally placed, it is sufficient to rotate the image (pixel data) on the back surface by 180 degrees when transferring the image (pixel data) from the page memory 24 to the SAF 25 (the image need not be rotated when the image is vertically placed).

Next, FIG. 12 shows the facsimile apparatus shown in FIG. 1 in which a horizontally long double-sided original document is fed by the ADF 1 in (a) portrait orientation and (b) landscape orientation. FIG. 3 is a diagram illustrating directions of main scanning and sub-scanning when scanning an image on a front surface / back surface when reading an image. At this time, the original is short-hand bound. In this case, to match the transmission direction on the front side and the back side, (b)
Only when the image is horizontally placed, it is sufficient to rotate the image (pixel data) on the back surface by 180 degrees when transferring the image (pixel data) from the page memory 24 to the SAF 25 (the image need not be rotated when the image is vertically placed).

Next, FIG. 13 shows the facsimile apparatus shown in FIG. 1 in which a horizontally long double-sided original is fed by the ADF 1 with (a) portrait and (b) landscape orientations. FIG. 3 is a diagram illustrating directions of main scanning and sub-scanning when scanning an image on a front surface / back surface when reading an image. At this time, the document is longitudinally bound. In this case, to match the transmission direction on the front side and the back side, (a)
When the image (pixel data) on the back surface is transferred from the page memory 24 to the SAF 25 only in the case of the vertical setting, the image may be rotated by 180 degrees (in the case of the horizontal setting, the rotation is not necessary).

Summarizing the above, when the double-sided document is bound in the longitudinal direction (FIGS. 10 and 13), the image on the back side is rotated by 180 degrees only when the document is placed in the portrait position, and bound in the short side (FIGS. 11 and 12). In the case of), the image on the back side is
If rotated by 0 degrees, the transmission direction can be matched between the front side and the back side of the double-sided document in any case. Hereinafter, specific examples of the first to sixth aspects will be described.

(Embodiment 1: Configuration and Operation of Claim 1) FIG.
FIG. 4 is a flowchart showing an embodiment of the present invention, and is a flowchart showing an operation example when the facsimile apparatus shown in FIG. 1 reads a double-sided document, transfers the document to the SAF, and stores it.
In FIG. 14, here, the user first designates whether the original is bound in the long or short direction by a key input from the operation unit 29, and the designated document is stored in T (S401). Next, the original 3 is fed onto the contact glass 9 (S402). When the original is fed by the ADF 1 shown in FIG. 1, the main scanning width and the sub-scanning length of the original 3 are detected by the width sensor 18 and the original length sensor 19 at the time of feeding, and are transmitted to the processing unit 23 of the fax control unit 21. Therefore, these detection results are stored as X and Y, respectively (S403). Next, the front side of the document is scanned by the image reading device 10 and the read image (pixel data) is transferred to the SAF 25. At this time, all the front side images (pixel data) are stored in the SAF 25 without rotating (S404). ).

Next, the original is reversed via the reversing path 17 and re-fed on the contact glass 9 (S405). Then, the back side of the document is read. At this time, the main scanning width X and the sub-scanning length Y that have been stored are compared, and if the main scanning width X is larger (X> Y), “horizontal” is set. Considering the longitudinal binding / short binding stored in T (S407), if it is longitudinal binding, the image (pixel data) scanned and read by the image reading device 10 is sent to the SAF 25 without rotating. The image data is transferred and stored (S409). If the short-time binding is performed, the image (pixel data) scanned and read by the image reading device 10 is rotated by 180 degrees and transferred to the SAF 25 for storage (S410). In the comparison between the main scanning width X and the sub-scanning length Y (S406), if the main scanning width X is smaller (X <Y), it is regarded as “vertical placement” and the longitudinal binding / With reference to the short side binding (S408), if it is the long side binding, the image (pixel data) scanned and read by the image reading device 10 is set to one.
Rotate by 80 degrees and transfer to SAF25 to accumulate (S411),
In the case of short-side binding, an image (pixel data) scanned and read by the image reading device 10 is rotated without rotating the SA.
The data is transferred to F25 and stored (S412). Then, after scanning the back side, the original is inverted (for ordering when the original is discharged), and the original is discharged to the discharge port 13 (S413). Also,
If there is a next original (S414), feed the original (S40
2) Repeat the same operation.

As described above, in order to match the transmission direction on the front side and the back side, it is necessary to perform long / short binding and vertical / long binding.
You need to know horizontal placement. Long / short binding depends on the contents of the image of the document, and therefore needs to be designated by the user. However, portrait / horizontal binding is determined based on the main scanning width and sub-scanning length detected at the time of paper feeding. No need to specify. In addition, since the main scanning width and the sub-scanning length are detected for each original, even if originals of different sizes are mixed, it is possible to determine the vertical / horizontal placement for each original. For this reason, as long as long and short bindings are unified, even if originals of different sizes are mixed, it is possible to match the orientation of the front and back surfaces of all the originals.

(Embodiment 2: Configuration and Operation of Claim 2) FIG.
5 is a diagram showing another embodiment of the present invention, and is a flow chart showing an operation example when the facsimile machine shown in FIG. 1 reads a double-sided document, transfers it to the SAF, and stores it. In FIG. 15, it is determined whether or not the back surface is rotated by 180 degrees by portrait / landscape, portrait / landscape, and left / right / vertical opening. Here, first, a key input from the operation unit 29 allows the user to place the document vertically /
The user is asked to specify a horizontal position, Z = 0 for a vertical position, and Z = 1 for a horizontal position (S501). Next, the user specifies a portrait document / landscape document, and G = 0 for a portrait document and G = 1 for a landscape document (S502). Further, the user is asked to specify the document opening direction, that is, left / right opening / vertical opening, and H = 0 for vertical opening and H = 1 for horizontal opening (S503).
Next, the original 3 is fed onto the contact glass 9 by the ADF 1 (S504), the front side is scanned by the image reading device 10, and the read image (pixel data) is transferred to the SAF 25. All (pixel data) are stored in the SAF 25 without rotating (S505).

Next, the original is reversed through the reversing path 17 and fed again onto the contact glass 9 (S506). Then, the back side of the document is read and the image (pixel data) is SAF
25, there is a case where the data is stored in the SAF 25 without rotation, and a case where the data is stored in the SAF 25 after being rotated by 180 degrees, which is determined based on whether Z + G + H is an odd number or an even number (S507). If the number is odd, the image is rotated 180 degrees and stored in the SAF 25 (S508). If the number is even, the image is stored in the SAF 25 without rotation (S509). This means that if only one of the three elements of vertical / horizontal, vertical / horizontal original, left / right opening / vertical opening changes, there is no rotation / 1
It utilizes the fact that the 80-degree rotation changes. That is, Z,
When all of G and H are 0, that is, when the document is placed vertically, vertically long, and opened vertically, there is no rotation as described with reference to FIG. In addition, when Z + G + H = 1, only one element changes compared to when all are 0, so that the rotation is 180 degrees. When Z + G + H = 2, only one element changes compared to when Z + G + H = 1. And no rotation, Z + G
When + H = 3, the rotation is 180 degrees because only one element has changed compared to when Z + G + H = 2. According to this determination result, the back surface is scanned and stored in the SAF 25 without rotating, or scanned and rotated 180 degrees to rotate the SAF 25.
To be stored. Then, after scanning on the back side, the original is inverted (for ordering when the original is discharged), and the original is discharged to the paper discharge port 13 (S510). If there is the next original (S511), the original is fed (S504), and the same operation is repeatedly executed.

As described above, in the embodiment shown in FIG. 15, instead of the longitudinal binding / short binding, the portrait original / horizontal original and the left / right opening / vertical opening are designated. For this reason,
There is one more specification item than when specifying long / short binding. For example, for left / right opening / up / down opening, set to a level that can be changed in the initial setting, and specify only portrait / landscape originals when performing duplex transmission operation. In this case, the characteristics of the portrait document / landscape document are easier to understand for the user than the characteristics of the longitudinal binding / short binding, so that the user can more easily understand the setting for matching the transmission direction on the front side and the back side. Can be provided.

(Embodiment 3: Structure and Operation of Claim 3) FIG.
FIG. 6 shows still another embodiment of the present invention.
6 is a flowchart showing an operation example when a facsimile apparatus shown in FIG. In FIG. 16, the user designates a portrait document / landscape document (S601), and designates left / right opening / vertical opening (S60).
2) and the operations in steps S608 to S614 are the same as those in the embodiment of FIG. 15, but in FIG. 16, the vertical / horizontal determination is detected when the document is fed as shown in FIG. (S603 to S6)
07) is different. This eliminates the need for the user to specify the vertical / horizontal arrangement with respect to FIG. 15, and the main scanning width / sub scanning length is detected for each document.
Even when originals of different sizes are mixed, it is possible to determine whether the original is placed vertically or horizontally for each sheet. For this reason, as long as the portrait document / landscape document and the left / right opening / vertical opening are unified, even if documents of different sizes are mixed, the orientation of the front and back sides of all the documents can be adjusted.

The facsimile apparatus has a function called "rotation transmission" in which the main scanning and the sub-scanning are switched between scanning and transmission, that is, the image is rotated by 90 or 270 degrees and then transmitted. There is. The following are two examples that are useful when using this feature. The first example is for an A4 landscape document. The facsimile is transmitted in one of three types of A4 width (216 mm), B4 width (256 mm), and A3 width (304 mm) as the main scanning width, although the sub-scanning length is arbitrary in terms of protocol. However, some facsimile cannot be received in the A3 width. Here, an A4 document (210 mm × 297 m
When m) is set horizontally, the main scanning width is 297 mm, so that the data is usually transmitted in A3 width. However, the receiver is A3
If the width cannot be received, the original with a main scanning width of 297 mm is
Since the data must be transmitted at 56 mm or less or 216 mm or less, it is necessary to transmit the data by cutting a part of the width or by reducing the width. Here, an image having a main scanning width of 297 mm and a sub-scanning length of 210 mm is rotated by 90 degrees (or 270 degrees).
(Rotation degree), main scanning width 210mm, sub scanning length 297mm
Since the image can be transmitted in A4 width, even if the receiver cannot receive in A3 width, the image can be transmitted at the same magnification without cutting the image.

The second example is for an A5 portrait document. When the A5 document (148 mm × 210 mm) is placed vertically, the main scanning width is 148 mm. As described above, the main scanning width in the facsimile protocol is at least A4 width (216 mm). At this time, since the image is received as an image having a main scanning width of 216 mm × a sub-scanning length of 210 mm, even if A5 paper is set on the receiving side, it cannot be output on A5 paper. Here, the main scanning width is 148 mm and the sub scanning length is 210 m
If the image of m is rotated 90 degrees (or 270 degrees) to form an image having a main scanning width of 210 mm and a sub-scanning length of 148 mm, and then transmitting the image, the receiving side can receive an image having a main scanning width of 216 mm × sub-scanning length of 148 mm. . This image is A5
Since the main scanning width is only 6 mm larger than the size of A5, the receiving side can determine that A5 has been received and output the A5 paper.

However, when the image is rotated by 90 degrees or 270 degrees as in the above example, if all the images are rotated by the same angle (either 90 degrees rotation or 270 degrees rotation), the vertical / In some cases, the orientation of the front surface and the back surface may be opposite or reversed due to horizontal placement, long binding / short binding, or the like. Therefore, in this case as well, in the same operation as in the first, second, and third embodiments (claims 1, 2, and 3), the direction of transmission can be matched between the front surface and the back surface by selectively using 90-degree rotation and 270-degree rotation. it can. Hereinafter, the embodiment will be described.

(Embodiment 4: Structure and Operation of Claim 4) As an embodiment of claim 4, in the flowchart shown in FIG. 14, "accumulate in SAF without scanning and rotation" is changed to "scan and 90 degrees". Rotate and store in SAF "and replace" scan and rotate 180 degrees and store in SAF "with" scan and rotate 270 degrees and save in SAF "
The operation is the same as that of the first embodiment (claim 1). In this case, as in the first embodiment (claim 1), the user does not need to specify the vertical / horizontal setting. If only the longitudinal binding / short binding is unified, originals of different sizes are mixed. Also, the orientation can be adjusted on the front and back sides of all originals.

(Embodiment 5: Structure and Operation of Claim 5) As one embodiment of the present invention, "accumulate in SAF without scanning and rotation" in the flowchart shown in FIG. Rotate and store in SAF "and replace" scan and rotate 180 degrees and store in SAF "with" scan and rotate 270 degrees and save in SAF "
The operation is the same as that of the second embodiment (claim 2). In this case as well, similarly to the second embodiment (claim 2), it is possible to provide the user with a more easily understandable setting for matching the transmission direction between the front surface and the back surface.

(Embodiment 6: Structure and operation of claim 6) As an embodiment of claim 6, in the flowchart shown in FIG. 16, "accumulate in SAF without scan and rotation" is changed to "scan and 90 degrees". Rotate and store in SAF "and replace" scan and rotate 180 degrees and store in SAF "with" scan and rotate 270 degrees and save in SAF "
The operation is the same as that of the third embodiment (claim 3). In this case, as in the third embodiment (claim 3), the user does not need to specify the vertical / horizontal orientation. If the portrait / horizontal original and the horizontal / vertical / vertical opening are unified, the sizes differ. Even if you mix originals,
The orientation can be adjusted on the front and back sides of all originals.

[0044]

As described above, in the facsimile apparatus according to the first aspect, in order to prevent the image transmission direction of the double-sided document from being reversed between the front side and the back side,
When judging whether to store the read image on the back side of the two-sided document without rotation or by rotating it by 180 degrees by portrait / horizontal placement and longitudinal / short binding, it is determined whether the document is in portrait orientation based on the detection size of the document. By judging whether the document is in landscape orientation, it is possible to omit the selection of portrait / horizontal orientation by the user, to reduce the user's trouble of operation, and to ensure that even if originals of different sizes are mixed, The transmission direction can be matched between the front and back sides of the document.

In the facsimile apparatus according to the second aspect, in order to prevent the image transmission direction of the double-sided document from being reversed between the front side and the back side, the read image on the back side of the double-sided document is accumulated without rotating. With the new selection method of judging from vertical / horizontal opening, left / right opening / vertical opening, portrait original / horizontal original, whether to accumulate by rotating by 180 degrees, it is possible to specify long / short binding. Compared to,
The setting for matching the transmission direction on the front surface and the back surface can be provided to the user more easily.

In the facsimile apparatus according to the third aspect, in addition to the same effects as those of the second aspect, the vertical / horizontal determination by the user is performed by judging the vertical / horizontal orientation based on the detected size of the original. Selection can be omitted, the user's operation time can be reduced, and even if originals of different sizes are mixed, the transmission direction can be matched on the front and back sides of all originals.

In the facsimile apparatus according to the fourth aspect, in order to prevent the image transmission direction of the double-sided original from being reversed between the front side and the rear side, the read image on the back side of the double-sided original is stored by being rotated by 90 degrees. When determining whether a document is to be stored by rotating it by 270 degrees or not by portrait / horizontal placement and long / short binding, the user can determine whether the document is to be placed vertically or horizontally based on the detected size of the document. This eliminates the need for vertical / horizontal selection by the user, reducing the user's trouble of operation. Even if documents of different sizes are mixed, the transmission direction can be matched on the front and back of all documents. become.

In the facsimile apparatus according to the fifth aspect, in order to prevent the image transmission direction of the double-sided document from being reversed between the front side and the back side, the read image on the back side of the double-sided document is accumulated by rotating by 90 degrees. A new selection method of judging whether to accumulate by rotating vertically or horizontally, or opening and closing horizontally, opening and closing vertically, and selecting from portrait / landscape originals. In comparison with the above, it is possible to provide the user with a more easily understandable setting for adjusting the transmission direction on the front surface and the back surface.

In the facsimile apparatus according to the sixth aspect, in addition to the same effect as that of the fifth aspect, the vertical / horizontal determination is made based on the detected size of the document.
This eliminates the need for the user to select between portrait and landscape orientation,
The user's operation can be reduced, and even when originals of different sizes are mixed, the transmission direction can be adjusted on the front and back sides of all the originals.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an embodiment of the present invention, and is a schematic configuration diagram of an image reading unit and a transmission unit of a facsimile apparatus including an automatic document feeder having a reversing mechanism.

FIG. 2 is an explanatory diagram of addresses of pixel data on a page memory of the facsimile apparatus shown in FIG. 1 in a main scanning direction and a sub-scanning direction.

3A and 3B are explanatory diagrams of a case where an image read by an image reading device in the facsimile apparatus shown in FIG. 1 is temporarily stored in a page memory and then rotated by 180 degrees and transferred to an SAF; FIG. FIG. 4B is a flowchart illustrating a processing operation, and FIG. 4B is a diagram illustrating an example of an image before and after transfer.

FIG. 4 is an explanatory diagram of a case where an image read by an image reading device in the facsimile apparatus shown in FIG. 1 is temporarily stored in a page memory, and then is rotated by 90 degrees and transferred to an SAF; FIG. 4B is a flowchart illustrating a processing operation, and FIG. 4B is a diagram illustrating an example of an image before and after transfer.

FIG. 5 is an explanatory diagram of a case where an image read by an image reading device in the facsimile apparatus shown in FIG. 1 is temporarily stored in a page memory, and then is rotated by 270 degrees and transferred to an SAF; FIG. 4B is a flowchart illustrating a processing operation, and FIG. 4B is a diagram illustrating an example of an image before and after transfer.

FIG. 6 is a diagram illustrating an example of a portrait document and a landscape document.

FIG. 7 is a diagram illustrating an example of an opening direction (horizontal opening, vertical opening) of a portrait and a landscape two-sided document.

FIG. 8 is a diagram illustrating an example of binding directions (long and short bindings) of a two-sided original having a portrait orientation and a landscape orientation.

9 is a diagram showing an example of how to place a document when setting a document on the ADF of the facsimile apparatus shown in FIG. 1;

FIG. 10 is a diagram illustrating an example of a facsimile apparatus shown in FIG.
FIG. 4 is a diagram illustrating the directions of main scanning and sub-scanning when scanning an image on the front surface / back surface when an image is read by an image reading apparatus when the image is fed by an image reading apparatus.

FIG. 11 shows a facsimile apparatus shown in FIG.
FIG. 4 is a diagram illustrating the directions of main scanning and sub-scanning when scanning an image on the front surface / back surface when an image is read by an image reading apparatus when the image is fed by an image reading apparatus.

FIG. 12 is a diagram illustrating the facsimile apparatus shown in FIG.
FIG. 4 is a diagram illustrating the directions of main scanning and sub-scanning when scanning an image on the front surface / back surface when an image is read by an image reading apparatus when the image is fed by an image reading apparatus.

FIG. 13 shows a facsimile apparatus shown in FIG.
FIG. 4 is a diagram illustrating the directions of main scanning and sub-scanning when scanning an image on the front surface / back surface when an image is read by an image reading apparatus when the image is fed by an image reading apparatus.

FIG. 14 is a diagram showing an embodiment of the present invention, in which the facsimile apparatus shown in FIG.
9 is a flowchart illustrating an operation example when transferring to F and storing.

FIG. 15 is a view showing another embodiment of the present invention, in which the facsimile apparatus shown in FIG.
9 is a flowchart illustrating an operation example when transferring to an AF and storing the data;

FIG. 16 is a view showing still another embodiment of the present invention;
2 is a flowchart illustrating an example of an operation performed when a facsimile apparatus illustrated in FIG. 1 reads a double-sided document, transfers the document to a SAF, and stores the document.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 automatic document feeder (ADF) 2 document table 3 document 4 feed roller 5 separation roller 6 reverse roller 7 feed roller 8 transport belt 9 contact glass 10 image reading device 11 first discharge roller 12 second discharge roller 13 discharge Paper mouth 14 Switching claw 15 Reverse roller 16 Discharge path 17 Reverse path 18 Width sensor 19 Document length sensor 21 Fax control unit 22 Memory 23 Processing unit 24 Page memory 25 SAF (image storage memory) 26 SRAM 27 Compressor 28 Modem 29 Operation unit

Claims (6)

[Claims] 1. A reading means for reading images on both sides of a document, a rotating means for rotating the read image by 180 degrees,
A detecting unit that detects certain information on the document, a determining unit that determines a certain characteristic according to the information detected by the detecting unit, a selecting unit that selects a binding direction of the document, and a determining unit that determines the binding direction. Determining means for determining whether or not to use the rotating means for an image of a document according to the characteristics, the binding direction selected by the selecting means, and whether the document is a front side or a back side. Facsimile machine. 2. Reading means for reading images on both sides of a document, rotating means for rotating the read image by 180 degrees,
Selection means for selecting the orientation of the document and the opening direction of the document and whether the document is a portrait document or a landscape document, and the orientation of the document selected by the selection means, the opening direction, information on whether the document is a portrait document or a landscape document, A facsimile apparatus comprising: a determination unit that determines whether to use the rotation unit on an image of a document depending on whether the document is a front surface or a back surface. 3. Reading means for reading images on both sides of a document, rotating means for rotating the read image by 180 degrees,
Detecting means for detecting certain information relating to the document; selecting means for selecting the document opening direction and whether the document is a portrait document or a landscape document; and determining a characteristic according to the information detected by the detection means Determining means, the characteristics determined by the determining means, information on the opening direction selected by the selecting means and whether the document is portrait or landscape,
A facsimile apparatus comprising: a determination unit that determines whether to use the rotation unit on an image of a document depending on whether the document is a front surface or a back surface. 4. A reading means for reading images on both sides of a document, a 90-degree rotating means for rotating the read image by 90 degrees, a 270-degree rotating means for rotating the read image by 270 degrees, and certain information about the document. Detecting means for detecting a characteristic, a determining means for determining a characteristic in accordance with information detected by the detecting means, a selecting means for selecting a binding direction of the document, a characteristic determined by the determining means, the selecting means Depending on the binding direction selected by the user and whether the original is on the front side or the back side,
A facsimile apparatus comprising: a rotation unit or a 270-degree rotation unit. 5. A reading means for reading images on both sides of a document, a 90-degree rotating means for rotating the read image by 90 degrees, a 270-degree rotating means for rotating the read image by 270 degrees, Selection means for selecting the opening direction of the document and whether the document is a portrait document or a landscape document, and the orientation, opening direction of the document selected by the selection means,
A determination unit for determining whether to use the 90-degree rotation unit or the 270-degree rotation unit for the image of the original according to information on whether the original is a portrait document or a landscape document and whether the document is a front or back side. Facsimile machine. 6. A reading means for reading images on both sides of a document, a 90-degree rotating means for rotating the read image by 90 degrees, a 270-degree rotating means for rotating the read image by 270 degrees, and certain information relating to the document. Detecting means for detecting the opening direction of the document and selecting whether the document is a portrait document or a landscape document; determining means for determining a characteristic in accordance with information detected by the detecting means; The 90-degree rotating means or the 270-degree rotating means with respect to the image of the original, depending on the characteristics determined by the means, information on the opening direction selected by the selecting means and whether the original is a portrait document or a landscape document, and whether the document is a front side or a back side. A facsimile apparatus comprising: a determination unit for determining whether to use a facsimile.