JP2002016776A - Facsimile equipment, control method for the facsimile equipment, computer-readable storage medium with stored control program for the facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a facsimile equipment that can surely transmit an image of a double side original at high-speed with a simple job without the need for a memory of a large capacity. SOLUTION: When the facsimile equipment transmits an image of an original in a double side continuous transmission mode where a read circuit 14 reads an image on a front side and a rear side of a double side original, transmits an entire image of the front side of the original to a receiver, and transmits the entire image of the rear side to the receiver, the facsimile equipment transmits an image on an odd number page on the front side of the double side original in the ascending order in a smaller page number and transmits an image of an even number page on the rear side of the double side original in the descending order in a large page number to the receiver. A page number about which the facsimile equipment informs the receiver by a procedure signal is decided on the basis of number of originals counted in the case of transmitting the image on the odd number page on the front side of the double side original by every transmission of the image of each of even pages on the rear side of the double side original. Furthermore, when reading of the image on the rear side is normally finished during the transmission of the image of the odd number page on the front side, the image of the even number page on the rear side of the double side original is transmitted in the ascending order in the smaller page numbers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus for transmitting double-sided information, a control method therefor, and a computer-readable storage medium storing a control program therefor.

[0002]

2. Description of the Related Art A facsimile apparatus specified in ITU-T Recommendations T4 and T30 is basically configured to transmit a one-sided original. That is, the original on the transmitter side is also one-sided information, and the image information received on the receiver side is recorded on one side of the recording paper.

On the other hand, recently, awareness of resource saving has been increasing, and printers and copiers having a so-called double-sided recording system for recording on the front and back sides of one sheet of paper are increasing. Along with this, a hardware configuration and a communication procedure for reading and transmitting a two-sided original have been proposed in a facsimile apparatus in recent years.

For example, in ITU-T Recommendation T30 or its draft, a communication procedure relating to double-sided transmission has been proposed. Transmits a facsimile message substantially similar to a one-page image in the case of conventional one-sided transmission, and adds a post message signal with page number and side (side) information and transmits the post message signal.

[0005] As a method of transmitting double-sided image information, two-sided alternate transmission in which an image on the front side of a document and an image on the back side are transmitted alternately for each page, or transmission of the entire image on the front side of the document, followed by transmission of the entire image on the back side A two-sided continuous transmission for transmission is known.

[0006]

When two-sided transmission is performed, the facsimile machine on the transmitting side needs to read the images on the front and back sides of the document by some method. It is only necessary to prepare a reading means capable of reading both sides of one document by one scanning. However, such a reading mechanism is expensive, so that not all facsimile apparatuses can prepare it.

Therefore, conventionally, a configuration has been considered in which the entire surface of a double-sided document is first read by a single-sided reading mechanism, and then the back side is read by a user's manual operation (or automatic / semi-automatic transport by a re-transport mechanism or the like).

For example, there are three double-sided originals, with pages 1 and 2 on the front and back of the first page, and pages 3 and 4 on the front and back of the second page.
Assuming that pages 5 and 6 are recorded on the front and back of the third page, pages 1, 3, and 5 on the front side are read first, and then, at an appropriate prompt, the user simply selects a bundle of originals. Is turned over, pages 6, 4 and 2 on the back side are read in this order.

When reading the back side, the user may be requested to rearrange the pages so that the pages are arranged in ascending order. However, since the original document stacking order is changed, it is easy to make a mistake and the operation is complicated. This is a problem particularly when the number of pages is large.

Therefore, in this method, the pages on the back side are read in descending order as described above, and the images of each page are sorted and transmitted in the memory in the memory prior to the actual transmission.

In this way, a two-sided original can be transmitted by a facsimile apparatus having only a one-sided reading mechanism. In this case, if the number of transmitted originals increases, a large amount of memory is required for two-sided transmission. In some cases, there is a big problem that transmission becomes impossible due to a memory overflow or the like.

An object of the present invention is to solve the above-mentioned problems and to make it possible to transmit a two-sided original reliably and at high speed by a simple operation without requiring a large amount of memory.

[0013]

In order to solve the above problems, according to the present invention, an image on both sides of a double-sided original is read, and all images on the front side of the original are transmitted to a receiver. In a facsimile apparatus that transmits in a double-sided continuous transmission mode, a method of controlling the same, and a computer-readable recording medium storing the control program, first, images of odd-numbered pages on the surface of a double-sided document are ascending in ascending order of page numbers. , And then the image of the even-numbered page on the back side of the two-sided original is transmitted in descending order of the page number.

Alternatively, the page number notified to the receiver by the procedure signal every time an image of each even-numbered page on the back side of the double-sided original is transmitted is determined by the number of originals counted when the front-sided image of the double-sided original is transmitted. A configuration that is determined based on the number of sheets is adopted.

Alternatively, if the number of originals counted when transmitting the image of the odd-numbered pages on the front side of the double-sided original is L, the page numbers of the back side information are 2L, 2 (L-1),
2 (L-2)... Is notified to the receiver by a procedural signal every time an image of each even-numbered page on the back side of the two-sided document is transmitted.

[0016] Alternatively, while transmitting the image of the odd-numbered page on the front side of the double-sided document in ascending order of the page numbers, the image of the even-numbered page on the back side of the double-sided document is read. If the transmission ends normally before the transmission of the image of the front side, after the transmission of the image of the front side odd page is completed, the images of the even side of the back side of the two-sided original are transmitted in ascending order from the page having the smallest page number. If the reading of the image on the back side of the document does not end normally before the end of the transmission of the image of the odd-numbered page on the front side, the image of the even-numbered page on the back side of the double-sided document is transmitted in descending order from the page number.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

[First Embodiment] FIG. 1 shows a hardware configuration of a facsimile apparatus employing the present invention. As shown in the figure, the present apparatus has a configuration in which each component is connected to a bus 26 of a CPU 22.

In FIG. 1, reference numeral 2 denotes an NCU (network control unit) which connects a telephone network to a terminal of the line in order to use the telephone network for data communication and the like, controls connection of a telephone exchange network, and connects to a data communication path. , And holds a loop. The NCU 2 connects the telephone line 2a to the telephone 4 under the control of the bus 26 (CML).
Off) or connected to the facsimile machine (CML on). In a normal state, the telephone line 2a is connected to the telephone 4 side.

Reference numeral 6 denotes a hybrid circuit that separates a transmission system signal and a reception system signal, sends a transmission signal from the addition circuit 12 to the telephone line 2a via the NCU 2, and transmits a signal from the other party. Received via NCU2, signal line 6a
It is sent to the modem 8 via

Reference numeral 8 denotes a modulator / demodulator. 8, V. 21, V.I. 27ter, V.A. 29, V.S.
17, V. The modulation and the demodulation are performed on the basis of the control of the bus, and the respective transmission modes are designated by the control of the bus. The modem 8 receives the transmission signal from the bus 26, outputs the modulation data to the signal line 8a, receives the reception signal output to the signal line 6a, and outputs the demodulated data to the bus 26.
Output to

Reference numeral 10 denotes a calling circuit for inputting telephone number information in response to a signal from the bus 26, and a signal line 10a.
To output a DTMF selection signal.

Reference numeral 12 denotes an addition circuit for adding transmission signals, which inputs information on the signal line 8a and information on the signal line 10a, and outputs the added result to the signal line 12a.

Reference numeral 14 denotes a reading circuit having a known configuration including a document conveying system, an optical reading element, and the like, and outputs read data from the document to a bus 26. In the present embodiment, the reading circuit 14 is configured by a single-sided reading mechanism.

Reference numeral 16 denotes a recording circuit constituted by various recording methods such as an electrophotographic method and an ink jet method, and sequentially records information output to the bus 26 line by line.

Reference numeral 18 denotes a memory circuit, which is mainly used as a work memory. Here, the memory 18 is R
AM (or any storage device such as a hard disk)
And is used to store raw information or encoded information of read data, and to store received information or decoded information.

Reference numeral 20 denotes an operation unit, and its keyboard has a one-touch dial, abbreviated dial, numeric keypad,
A key, a start key, a set key, a stop key, a double-sided transmission selection key, and other function keys are provided. Key information pressed by the keyboard is output to the bus 26. The operation unit 20 is provided with a display unit such as an LCD panel, and the display unit can display information output to the bus 26.

Reference numeral 22 denotes a CPU (central processing unit) composed of a microprocessor or the like, which controls the entire facsimile apparatus and executes a facsimile transmission control procedure described later.

The ROM 24 stores a program of the CPU 22 for performing communication control as described below.

Here, an outline of a communication procedure for duplex transmission of a duplex document will be described with reference to FIGS. Here, a general two-sided transmission described in the currently proposed ITU-T Recommendation T30 (or a draft thereof) is shown.

There are two duplex communication modes in the ITU-T recommendation, a duplex alternate mode (alternate) mode and a duplex continuous transmission mode. The former is a mode in which the front side and the back side of the first page are alternately transmitted, such as the front side, the back side of the first page, the front side, the back side of the second page, and the like. In the latter case, only the front side of the first page, the front side of the second page,...
In this mode, the back side of the page, the back side of the second page, etc., and the back side of the document are all transmitted in page order. The facsimile machine can use any mode depending on its implementation.

Next, FIG. 2 shows DIS (digital identification: transmitted from the image receiving station), DTC (digital transmission command: transmitted from the image receiving station), and DCS (digital command: transmitted from the image transmitting station). FI) for each signal
The table below shows the structure of information that specifies double-sided transmission in F (facsimile information field).

As shown in FIG. 2, in the DIS / DTC signal, the x-th bit of the FIF (the number of bits is not formally determined and is indicated by “x” for convenience) is used for the double-sided recording function in the alternate mode. The presence / absence of the double-sided recording function in the continuous mode is indicated by the x + 1 bit of the FIF. In the DCS signal, double-sided transmission in the alternate mode is designated by the x-th bit of the FIF.
The + 1st bit specifies double-sided transmission in the continuous mode.

FIG. 3 shows a Q signal (specifically, an EOP (end of page), MPS (multi-page), or EOM (end of message) signal) in normal G3 transmission, and an ECM (error correction mode). PP in transmission
SQ signal (specifically, PPS-EOP or
PPS-MPS or PPS-EOM or P
3 shows a frame configuration of a post message signal such as PS-NULL.

As shown in FIG. 3, in these post message signals, facsimile information is transmitted following Flag (flag), Address (address), Control (control data), and FCF (facsimile control field). At the head of the facsimile information, three fields of PC (page counter), BC (block counter) and FC (frame counter) are transmitted only in the case of ECM, followed by facsimile information relating to double-sided transmission. Facsimile information related to double-sided transmission is Lengt
h (length: Page number (2
Octets) and Page Information (currently 1 octet), Page
number (page number: 2 octets), Pa
ge information (page information)
After that, FCS (Frame Check Sequence), Fl
ag (flag) follows.

In the above, the Page number (page number) is, by convention, added to one page from P1 for each of the front and back sides when transmitting a double-sided document in order of the front and back sides. Has become. Also, Pa
The "ge information" (page information) has a data width of 1 octet and indicates whether the image information of the surface is a front or a back, and bit0 indicates a front surface (0) or a back surface (1).
To express. For the time being, bits 1 to 6 are reserved bits and their functions are not defined, and bit 7 is always 0 as an extension bit.
Is set to

Of the facsimile information of the above-mentioned post message signal, Length, Page number
The three fields r and Page information are fields newly added for double-sided transmission.

The Q signal used in the normal G3 communication does not include PC, BC, and FC among the above, and these are used only in the PPS-Q signal used in the ECM communication.

FIG. 4 shows a state of two-sided transmission in the alternate mode in the normal G3 mode, FIG. 5 shows a state of two-sided transmission in the alternate mode in the ECM communication mode, and FIG. 6 shows both sides in the continuous mode in the normal G3 mode. FIG. 7 shows the state of transmission, and FIG. 7 shows the state of double-sided transmission in the continuous mode in the ECM communication mode.

As shown in FIGS. 4 to 7, the x and x + 1 bits of the DIS signal indicate the duplex transmission function of the receiver (either alternate or continuous), and the x and x + 1 bits of the DCS signal indicate the transmitter. Declares a double-sided transmission mode to be executed. In the continuous mode of FIGS. 6 and 7, it is declared that the transmission in the continuous mode is performed by setting the x + 1 bit of the DCS signal to 1.

As shown in FIGS. 4 and 6, the MPS signal is used as a post message signal in the case of the normal mode, and the PPS-signal is used as the post message signal in the case of the ECM as shown in FIGS. The MPS signal is used.

Here, three double-sided originals are transmitted, and “PN” in each drawing is the above-mentioned Page Number.
Is shown.

For example, FIG.
The MPS signal indicated by the symbol “MPS (PN = 1, 0 (fr
ont side))).
Page number 1 (PN = 1), surface (0 (front s)
ide)) is transmitted (FIG. 4).
The following description of the MPS or PPS-MPS signal is the same as above.)

That is, in the alternate mode shown in FIGS. 4 and 5, the first sheet (PN = 1) table (0) and the first sheet (PN =
2) Back (1), 2nd (PN = 3) table (0), 2nd (PN = 4) back (1), 3rd (PN = 5) table (0), The image information of the original is transmitted in the order of the back (1) of the third sheet (PN = 6).

In the continuous mode shown in FIGS. 6 and 7,
First sheet (PN = 1) table (0), second sheet (PN = 3) table (0), third sheet (PN = 5) table (0), first sheet (P
N = 2) back (1), second (PN = 4) back (1),
The image information of the original is transmitted in the order of the back (1) of the third sheet (PN = 6).

The above is a general double-sided procedure.

In the present embodiment, in the double-sided transmission, the image of the double-sided original is read by using the single-sided image reading means and transmitted in the double-sided continuous transmission (continuous) mode. The transmission of the front side information is performed by transmitting the odd-numbered pages in ascending order of the page numbers, and the transmission of the back side information is performed by transmitting the even-numbered pages in descending order of the page numbers.
The page number of the back side information is determined from the number of originals when the front side information is transmitted. That is, if the number of originals when the front side information is transmitted is L (1 to L), the page numbers of the subsequently transmitted back side information are 2L, 2 (L-1), 2 (L-
2)... The above control is stored in the ROM 24 as a program of the CPU 22.

FIGS. 8 to 12 are flow charts showing the flow of the above communication control. 8 to 12 are continuous at the respective positions.

In FIG. 8, step S0 indicates the start of processing started by a predetermined reset operation or the like.

In steps S2 and S4, an initialization process is performed. In step S2, the memory 18 is initialized via the bus 26, and in step S4, the memory 26 is initialized.
The display section of the operation section is cleared via. The event loop that handles the actual communication processing is started from step S6.

In step S6, N
The CML of the CU 2 is turned off, and the line 2a is connected to the telephone 4 side.

In step S8, operation information of the operation unit 20 is input via the bus 26, and it is determined whether or not double-sided transmission is selected. If double-sided transmission is selected by a predetermined key operation or the like, step S12 is performed. If the double-sided transmission is not selected, the process proceeds to step S10, and after performing other processing (such as copying of a document), the process returns to step S6.

In the step S12, via the bus 26,
The operation unit 20 is controlled, and a message “Please set the original on the front side and send it” is displayed on the display unit of the operation unit 20. This display is deleted in response to any key operation.

In step S 14, via the bus 26
The CML of the NCU 2 is turned on, and the line 2a is connected to the facsimile apparatus (hybrid circuit 6).

In step S 16, via the bus 26
Place a call to the designated destination using the calling circuit. It is assumed that the telephone number of the destination is input using the ten keys or one-touch keys of the operation unit 20.

In step S18 in FIG. 9, a pre-facsimile procedure is executed, and in step S20, it is determined whether or not the other receiver has a duplex reception function in a duplex continuous mode. This function identification is performed by analyzing the FIF of the DIS signal received from the other party. Here, if the partner receiver has the double-sided continuous mode, the process proceeds to step S22. If the partner receiver does not have the same mode, the process proceeds to step S70 in FIG.

In step S70 of FIG. 12, the DCN signal is transmitted to disconnect the line.
6, the CML of the NCU 2 is turned off, and the line 2a is connected to the telephone 4 side.

In the step S74, via the bus 26,
The message "The line has been disconnected because the other party's machine has no duplex reception function in the duplex continuous mode" is displayed on the display of the operation unit. This display is deleted in response to any key operation. Then, the process returns to step S6 in FIG.

On the other hand, if the other party's receiver has the continuous mode on both sides (continuous mode), step S in FIG.
At 22, the remaining pre-facsimile procedure is performed.
Here, the other party's receiver is continuous on both sides (continuous)
Since it has a mode, the duplex transmission in the duplex continuous mode is designated.

In step S24, a front side reading page counter M for counting the number of pages on the front side of the read original is initialized to one. This surface reading page counter M
Is allocated to a predetermined area of the memory 18 (the same applies to other counters and flags described later).

In this embodiment, the counter M and the counters K and L, which will be described later, are "page" counters. In addition, actually, the document is counted up (or counted down) in units of the number of documents.

In step S26, the front side transmission page counter K for counting the number of pages on the front side of the transmitted original is initialized to one.

Then, in the loop starting from step S28, the reading circuit 14 reads the image on the front side of the document and transmits the image.

In step S28, the image signal on the front side of the original of one page is read by the reading circuit 14 and transmitted. This step S28 is the transmission of the front side image. As the PPS-Q after the image message transmission or the page number (Page Number) in the Q signal, 2K-1 is notified in ascending order from the smallest one. That is, since the front side transmission page counter K increments each time one side of the front side is transmitted (step S50 described later), the page number (Page Number) of the front side is set to 1, 3, 5,. Will be sent.

In step S30, it is determined whether or not reading of one page has been completed. If reading of one page has been completed, the process proceeds to step S32, and if reading of one page has not been completed, the process proceeds to step S46 in FIG. .

In step S32, it is determined whether the front side is being read. If the front side is being read, the process proceeds to step S38 in FIG. 10, and if the front side is not being read, the process proceeds to step S34.

In step S34, it is determined whether or not reading of all pages on the back surface has been completed. If completed, the process proceeds to step S28, and if not completed, the process proceeds to step S36 to increment the value of N by one.

In step S38 of FIG. 10, it is determined whether or not reading of all pages on the front side has been completed. If the answer is affirmative, the process proceeds to step S40. If the answer is negative, the process proceeds to step S44 to change the value of N. Increment by one.

In step S 40,
"Please set the original on the back and press the start key" is displayed on the display of the operation unit. This display is deleted in response to any key operation.

If the user manually sorts the back page numbers in ascending order, the back page will not be transmitted with an appropriate page number in this embodiment. A more detailed guidance display on how to load the back surface may be performed so that the bundle is loaded upside down and not rearranged.

In step S42, the backside reading page counter N is initialized to 1.

In step S44, the value of the front page reading page counter M is incremented by one.

In step S46, it is determined whether or not reading of one page has been completed. When the reading has been completed, the process proceeds to step S48, and if not completed, the process proceeds to step S28.

In step S48, it is determined whether or not transmission of all front pages has been completed. If transmission of all front pages has been completed, the flow advances to step S52 to set the value of K in the rear transmission page counter L. If the transmission of all the front pages has not been completed, the process proceeds to step S50, and the value of the front transmission page counter K is incremented by one.

In step S54 in FIG. 11, the image signal on the back side of the document is read and transmitted. This step S
Reference numeral 54 denotes transmission of an image on the back side, and 2Ls are notified in descending order of page numbers in PPS-Q and Q signals.
That is, since the back side transmission page counter L is decremented by one each time one back side is transmitted (step S68 described later), the page number (PageNumber) of the back side is 6, 4 or 2 by the PPS-Q or Q signal. This is transmitted (in the case of three double-sided originals).

In step S56, it is determined whether or not reading of one page has been completed. If reading of one page has been completed, the process proceeds to step S58. If reading of one page has not been completed, the process proceeds to step S62.

In step S58, it is determined whether or not reading of all pages on the back surface has been completed. When reading of all pages on the back surface has been completed, the process proceeds to step S62. If reading of all pages on the back surface has not been completed, step S58 is performed. Proceed to S60.
Then, the value of the back page reading page counter N is incremented by one.

In step S62, it is determined whether the transmission of one page has been completed. If the transmission of one page has been completed, the process proceeds to step S64. If the transmission of one page has not been completed, the process proceeds to step S54.

In step S64, it is determined whether or not transmission of all pages on the back side has been completed. When transmission of all pages on the back side has been completed, the flow advances to step S66 to execute a post-procedure, and transmission of all pages on the back side has been completed. If not, step S6
In step S8, the value of the back side transmission page counter L is decremented by one and the process loops to step S54.

As described above, the image of the double-sided document is read by the single-sided image reading means (reading circuit 14), and is transmitted in the double-sided continuous transmission (continuous) mode. The odd-numbered pages are transmitted in ascending order from the smaller page, and the even-numbered pages are transmitted in descending order from the larger page number for transmission of the back surface information. The page number of the back side information is determined from the number of originals when the front side information is transmitted. If the number of transmitted originals is L (1 to L), the page numbers of the subsequently transmitted back side information are 2L, 2
(L-1), 2 (L-2)... For example, when transmitting three originals, first, 3, 5
The pages are read and transmitted, and then pages 6, 4, and 2 on the back side are read and transmitted from the stack of the original loaded upside down.

Therefore, according to the present embodiment, the images on the front and back sides are not transmitted after being sorted, and a large-capacity image memory is not required. , And a simple and inexpensive hardware using only a one-sided reading mechanism can reliably and quickly transmit a two-sided original.

Note that there are several methods for recording the image received as described above on the receiving side.

For example, the received image of each surface is recorded in the order of reception. In this case, the Q signal or the PPS
-The page number (Page Nu) transmitted by the Q signal
It is conceivable that the receiving side generates a header image including this page number from the receiver and records the header image on each image.

Alternatively, all the received images are received in a memory, sorted, and sorted based on the page number (Page Number) transmitted by the Q signal or the PPS-Q signal so that the order of the pages matches. May be recorded.

Of course, it is optional to perform single-sided recording or double-sided recording on the receiving side, and does not constitute the essence of the present invention. On the receiving side, the received front and back images may be recorded on both sides of one sheet of recording paper by the recording circuit 16 or may be recorded on one side.

It is also possible to select whether the control of the present embodiment is performed or whether all the images are read into the memory and sorted and transmitted again as in the related art by an appropriate setting operation of the operation unit 20. Good.

[Second Embodiment] In the first embodiment,
Unconditionally, front-side information is transmitted in ascending order from the smallest page number, and odd-numbered pages are transmitted in ascending order. Back-side information is transmitted in the descending order of page number, and even-numbered pages are transmitted in descending order. May be determined depending on the transmission method.

For example, if the reading of the back side information is completed without the memory overflow during the transmission of the front side information, after the transmission of the front side information, the back side information is transmitted in ascending order of the page numbers in ascending order. On the other hand, a configuration is conceivable in which the control of the first embodiment is executed when the transmission of the front surface information is completed before the reading of the back surface information or the reading of the back surface information overflows.

FIG. 13 shows the necessary changes to the control of FIGS. 8 to 12 in order to perform the above control.

In FIG. 13, step S80 is the same as that in FIG.
0 corresponds to the Yes branch of step S48, and step S84 corresponds to step S52. That is, the determination in step S82 is inserted between the branch of Yes in step S48 and step S52 (the processing of the back surface is started from here).

In this step S82, the reading circuit 14 determines whether or not reading of all pages on the back side has been completed. If reading of all pages on the back side has been completed, the flow advances to step S86 to proceed to step S86. The counter L is initialized to 1, and if reading of all pages on the back surface has not been completed, the process proceeds to step S84 (step S52 in FIG. 10).

It is assumed that the image on the back side read by the reading circuit 14 is sequentially stored in the memory 18. If the image memory area overflows during the reading of the back side, the determination in step S82 is No. That is, in this case, the process branches to step S52 to perform the control of the first embodiment, and the reading is temporarily stopped until the memory 18 becomes empty due to the transmission of the back page in descending order (the same as the reading order). And

In step S82, if reading of all pages on the back surface has been completed without overflowing the memory, after step S86, the back surface is arranged in ascending order (the order opposite to the reading order). Is transmitted.

That is, in step S88, the image signal is transmitted. Here, the already read back-side image is transmitted in ascending order. Then, as a page number (Page Number) in the PPS-Q and Q signals,
Based on the count value of the back side transmission page counter L, 2Ls are notified in ascending order from the smaller one.

In step S96, the same process as step S62 is performed to determine whether the transmission of one page has been completed, and the process proceeds to step S88 with a negative response, and proceeds to step S88 with a positive response.
Go to 98.

In step S98, the same process as step S64 is performed to determine whether or not transmission of all pages on the back surface has been completed. The process proceeds to step S100 (step S66) with an affirmative response, and proceeds to step S102 with a negative response.

In step S102, the value of the back side transmission page counter L is incremented by one so that the page numbers are in ascending order, and the process loops to step S88.

As described above, if the reading of the back side is completed without overflow at the timing of starting the transmission of the back side, the back side can be transmitted in the ascending order of the page numbers. , Since the back side is not transmitted in reverse order, output processing at the receiver,
Alternatively, the work after communication of the receiving-side operator is facilitated.

Although the configuration of the facsimile machine has been described above, it goes without saying that the present invention can be applied not only to the facsimile machine but also to other types of facsimile machines. For example, according to the present invention, a general-purpose terminal such as a personal computer is externally / internally provided with a fax modem or the like,
The present invention can also be implemented in a configuration in which facsimile communication is performed by software control. In this case, the control program of the present invention is stored and supplied not only in the above-described ROM 24 but also in any computer-readable recording medium such as a hard disk, a floppy (registered trademark) disk, an optical disk, a magneto-optical disk, and a memory card. Can be.

[0100]

As is apparent from the above description, according to the present invention, two-sided continuity reading of the front and back images of a two-sided document, transmission of the entire image of the front surface of the document to the receiver, and subsequent transmission of the entire image of the back surface are performed. Facsimile machine transmitting by transmission mode,
In a computer-readable recording medium storing the control method and the control program, first, images of odd-numbered pages on the front side of a two-sided original are transmitted in ascending order from the smaller page number, and then the even-numbered pages on the back side of the two-sided original Image is transmitted in descending order from the page with the largest page number, so that the images on the front and back are not sorted and transmitted, so no large-capacity image memory is required, and the transmission on the back is performed. In this case, it is not necessary to perform a troublesome work of re-sorting the originals, and the two-sided originals can be transmitted reliably and at high speed by simple and inexpensive hardware using only a one-sided reading mechanism.

In particular, during transmission of the image of the odd-numbered page on the front side of the double-sided document in ascending order from the page having the smallest page number, the image of the even-numbered page on the back side of the double-sided document is read. If the transmission ends normally before the image transmission ends, after the transmission of the image of the odd-numbered pages on the front side ends,
If the image of the even-numbered page on the back side of the two-sided original is transmitted in ascending order from the page with the smallest page number, while the reading of the image on the back side is not completed normally before the transmission of the image of the odd-numbered page on the front side is completed If the configuration of transmitting the image of the even-numbered page on the back side of the two-sided document in descending order of the page number is adopted, if the reading of the back side is completed without overflow at the timing of starting transmission of the back side,
The back side can be transmitted in ascending order of the page numbers. In this case, since the back side is not transmitted in reverse order, the output processing at the receiver or the work after communication of the receiving operator can be performed. It has the advantage of being easier.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a hardware configuration of a facsimile apparatus employing the present invention.

FIG. 2 DIS / DTC and D used in duplex transmission
FIG. 3 is a table showing the FIF of a CS signal.

FIG. 3 is a table showing a format of a post message signal used in double-sided transmission.

FIG. 4 is an explanatory diagram showing a state of duplex transmission in an alternate mode in a normal G3 mode.

FIG. 5 is an explanatory diagram showing a state of double-sided transmission in an alternate mode in an ECM communication mode.

FIG. 6 is an explanatory diagram showing a state of double-sided transmission in a continuous mode in a normal G3 mode.

FIG. 7 is an explanatory diagram showing a state of double-sided transmission in a continuous mode in the ECM communication mode.

FIG. 8 is a flowchart illustrating communication control of a CPU 22 of FIG. 1;

FIG. 9 is a flowchart illustrating communication control of a CPU 22 of FIG. 1;

FIG. 10 is a flowchart illustrating communication control of a CPU 22 of FIG. 1;

FIG. 11 is a flowchart illustrating communication control of a CPU 22 of FIG. 1;

FIG. 12 is a flowchart illustrating communication control of a CPU 22 of FIG. 1;

FIG. 13 is a flowchart illustrating a different communication control according to the present invention.

[Explanation of symbols]

 2 NCU 4 Telephone 6 Hybrid circuit 8 Modulator / demodulator 10 Calling circuit 12 Addition circuit 14 Reading circuit 16 Recording circuit 18 Memory 20 Operation unit 22 CPU 24 ROM 26 Bus

Claims (12)

[Claims] 1. A facsimile apparatus for reading images on both sides of a two-sided original, transmitting the entire image on the front side of the original to a receiver, and then transmitting the whole image on the reverse side in a continuous duplex transmission mode. A facsimile machine having control means for transmitting an image of an odd-numbered page on the front side in ascending order from a page having a smaller page number, and subsequently transmitting an image of an even-numbered page on the back side of a double-sided document in descending order from a page having a larger page number. apparatus. 2. The page number notified to the receiver by a procedure signal each time an image of each even-numbered page on the back side of a two-sided original is transmitted is the number of originals counted when the odd-numbered page image on the front side of the two-sided original is transmitted. The facsimile apparatus according to claim 1, wherein the facsimile apparatus is determined based on the following. 3. When the number of originals counted when transmitting an image of an odd-numbered page on the front side of a double-sided original is L, 2L, 2 (L-1), 2 (L-2),...
3. The facsimile apparatus according to claim 2, wherein a notification is sent to the receiver by a procedure signal each time an image of each even-numbered page on the back side of the double-sided document is transmitted. 4. An image of an even-numbered page on the back side of a double-sided original is read while an image of an odd-numbered page on the front side of a double-sided original is transmitted in ascending order from a page having a smaller page number. If the image transmission is normally completed before the transmission of the image is completed, after the transmission of the image of the odd-numbered page on the front side is completed, the images of the even-numbered pages on the back side of the two-sided document are transmitted in ascending order from the page having the smallest page number. If the reading has not been completed normally before the transmission of the image of the odd-numbered page on the front side has been completed, the image of the even-numbered page on the back side of the double-sided document is transmitted in descending order of the page number. Item 1. A facsimile apparatus according to item 1. 5. A method of controlling a facsimile apparatus which reads images on both sides of a double-sided original, transmits the entire image on the front side of the original to a receiver, and subsequently transmits the entire image on the reverse side in a continuous double-sided transmission mode. A control step of transmitting the images of the odd-numbered pages on the front side of the two-sided document in ascending order from the smaller page number, and subsequently transmitting the images of the even-numbered pages on the back side of the two-sided document in descending order from the page number. Facsimile machine control method. 6. The page number notified to the receiver by a procedure signal each time an image of each even-numbered page on the back side of a two-sided original is transmitted is the number of originals counted when the odd-numbered page image on the front side of the two-sided original is transmitted. The method for controlling a facsimile apparatus according to claim 5, wherein the determination is made based on: 7. When the number of originals counted when an image of an odd-numbered page on the front side of a two-sided original is transmitted is L, 2L, 2 (L-1), 2 (L-2),...
The facsimile apparatus control method according to claim 6, wherein a notification is sent to the receiver by a procedural signal every time an image of each even-numbered page on the back side of the two-sided document is transmitted. 8. An image of an odd-numbered page on the front side of a double-sided original is transmitted in ascending order from a page having a smaller page number, and an image of an even-numbered page on the back side of the double-sided original is read. If the image transmission is normally completed before the transmission of the image is completed, after the transmission of the image of the odd-numbered page on the front side is completed, the images of the even-numbered pages on the back side of the two-sided document are transmitted in ascending order from the page having the smallest page number. If the reading has not been completed normally before the transmission of the image of the odd-numbered page on the front side has been completed, the image of the even-numbered page on the back side of the double-sided document is transmitted in descending order of the page number. Item 6. A method for controlling a facsimile apparatus according to item 5. 9. A control program for a facsimile machine for reading images on the front and back of a two-sided original, transmitting the entire image on the front side of the original to a receiver, and subsequently transmitting the entire image on the reverse side in a continuous double-sided transmission mode. In the computer-readable storage medium, first, the images of the odd-numbered pages on the front side of the two-sided document are transmitted in ascending order from the page having the smallest page number, and then the images of the even-numbered pages on the back side of the two-sided document are transmitted in descending order from the page having the larger page number. A computer-readable storage medium storing a control program for a facsimile machine, wherein a control step for transmitting is stored. 10. A page number notified to a receiver by a procedure signal every time an image of each even-numbered page on the back side of a two-sided original is transmitted is the number of originals counted when an image of an odd-numbered page on the front side of a two-sided original is transmitted. 10. A computer-readable storage medium storing a control program for a facsimile apparatus according to claim 9, wherein a control procedure for determining based on the control procedure is stored. 11. When the number of originals counted when an image of an odd-numbered page on the front side of a double-sided original is transmitted is L, 2L, 2 (L-1), and 2 (L-2) are set as page numbers of the back side information.
11. The control program for facsimile apparatus according to claim 10, wherein a control procedure for notifying a receiver of a procedure signal for each image transmission of an even-numbered page on the back side of the double-sided document is stored. Computer readable storage medium. 12. An image of an odd-numbered page on the front side of a double-sided document is transmitted in ascending order from the smallest page number, and an image of an even-numbered page on the back side of the double-sided document is read. If the image transmission is normally completed before the transmission of the image is completed, after the transmission of the image of the odd-numbered page on the front side is completed, the images of the even-numbered pages on the back side of the two-sided document are transmitted in ascending order from the page having the smallest page number. If the reading is not completed normally before the transmission of the image of the odd-numbered page on the front side, the control procedure for transmitting the image of the even-numbered page on the back side of the double-sided document in descending order of the page number is stored. A computer-readable storage medium storing a control program for a facsimile apparatus according to claim 9.