JPH05244365A - System for transmitting and receiving both side document in facsimile - Google Patents

Abstract

PURPOSE:To enable improving the efficiency of transmission and reception between a facsimile which transmits a both side document and the facsimile which prints the both sides of received picture data. CONSTITUTION:The transmission side facsimile 1 having a function for transmitting the both side document and the reception side facsimile 21 having the function for both side-printing are respectively provided with both side function informing parts 9 and 29 which inform a communication destination of processing the front and rear replacement of picture data in a rear at the time of transmission and reception, communication destination both side function discriminating parts 10 and 30 which discriminate the presence or absence of the both side processing information from the communication destination and first both side function control parts 11 and 31 which mutually prevent the replacement processing of picture data in the rear so that these facsimiles are the both side document original transmission and reception system of the facsimile where the processing of the front and rear replacement of picture data in the rear surface is useless.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission / reception system between a facsimile for transmitting double-sided originals and a facsimile for double-sided printing of received image data. The present invention relates to a double-sided original document transmission / reception system for a facsimile, which is suitable for efficiently performing transmission / reception between facsimiles for performing image processing for rearranging image data.

[0002]

2. Description of the Related Art In a conventional facsimile having a double-sided original transmission function, when a double-sided original is sent, both sides are read and then transmitted from the leading edge of the image page by page as in a normal facsimile. In a general G3 facsimile or the like, transmission image information is always read from the leading edge of a document and sent from the leading edge of every page. However, in the case of a facsimile equipped with a scanner capable of reading both sides of a document, the front side is often read from the front end, while the back side is often read from the rear end. Therefore, at the time of transmission, the image data on the back side is subjected to image processing, the front and back are reversed, and then the image is sent from the front end. Therefore, all pages and originals are sent from the leading edge of the document onto the communication line, and the communication destination device does not need to be aware of double-sided transmission, and normal communication is performed.

However, in recent years, a facsimile equipped with a plotter capable of printing on both sides has been devised. Many double-sided plotters perform printing from the front end when printing on the front side and from the rear end when printing on the back side. When receiving the back side of a double-sided original from a facsimile having a double-sided original transmission function in a facsimile having such a plotter, reverse the front and back on the transmitting side and reverse the front and back on the receiving side. To For this,
Useless image processing occurs.

[0004]

The problem to be solved by the prior art is that, in the prior art, the transmission and reception of a double-sided original between a facsimile that transmits a double-sided original and a facsimile that performs double-sided printing of the received image data, Since the image processing for exchanging the image data before and after is performed with each other, it is not possible to efficiently send and receive the double-sided original. An object of the present invention is to solve these problems of the prior art, and to improve the efficiency of transmission / reception between a facsimile that transmits double-sided originals and a facsimile that performs double-sided printing of received image data. It is to provide a system.

[0005]

In order to achieve the above object, a facsimile double-sided document transmission / reception system of the present invention comprises: (1) a first double-sided original image data read from the rear side opposite to the front side; A double-sided document reading device, and an image data front-rear displacing unit for performing image processing on the back side image data read by the first double-sided document reading device to replace the front side and the back side with the back side image data in the same direction as the front side. , A sending facsimile that sends double-sided originals,
Among the received image data, the front and rear of the image data to be printed on the back side of the recording paper is replaced by the included image data front-rear replacement unit, and the receiving side facsimile is provided with the double-sided printing processing unit that performs double-sided printing of the received image data. In the double-sided original document transmission / reception system of the facsimile, each of the transmission-side facsimile and the reception-side facsimile has a double-sided function notifying unit for notifying the communication destination at the time of transmission / reception to perform the double-sided processing using the image data front / rear replacement unit. , Based on the communication destination double-sided function determination unit that determines whether or not there is a double-sided processing notification from the communication destination by the double-sided function notification unit, and the determination result that the communication destination double-sided processing notification is present by the communication destination double-sided function determination unit, A first double-sided function control unit that prevents the rear side image data exchange process from being performed by the image data front-back exchange unit is provided. Each millimeter and receiving facsimile are both in the case with image data before and after the replacement unit may not perform the replacement process of the rear surface of the image data by the image data before and after the replacement unit. Also,
(2) In the facsimile double-sided document transmission / reception system described in (1) above, the double-sided function notifying unit indicates that the double-sided processing using the image data before / after replacement unit is performed on the call connection information transmitted to the communication destination. It is characterized in that processing information is added and the communication destination is notified. (3) In the facsimile double-sided document transmission / reception system according to any one of (1) or (2), the transmission-side facsimile is provided in place of the first double-sided document reading device and the image data front-rear replacement unit. In the second double-sided document reading device in which the reading direction of the image data on the back side of the double-sided document can be freely switched, the presence / absence of the notification of the double-sided processing of the communication destination is determined by the communication destination double-sided function determination unit instead of the double-sided function control unit. On the basis of the result, a second double-sided function controller for controlling the switching of the reading direction of the image data on the back side of the double-sided document of the second double-sided document reading device is provided. Further, (4) in the facsimile double-sided document transmitting / receiving system according to any one of (1) to (3), each of the transmitting-side facsimile and the receiving-side facsimile is double-sided based on an operator's double-sided function switching instruction input. The present invention is characterized in that a double-sided processing control section is provided, which includes operation stop control of the function notification section and the communication destination double-sided function determination section, and which controls switching from double-sided processing to normal single-sided processing.

[0006]

According to the present invention, a facsimile capable of transmitting a double-sided original is used when transmitting, for example, NSF from the receiving side.
(Non Standard Facilities,
Acknowledge the non-standard capabilities of the called station) to obtain the capabilities of the destination fax machine. Further, a facsimile capable of double-sided printing of the received image data receives, for example, NSS (Non Standard Fac
illities Set-up, which informs the non-standard setup data of the calling station) to obtain the function of the facsimile of the communication destination. Then, when both the sending side and the receiving side recognize that the facsimile has a function of performing the image processing that replaces the front and rear sides of the image data on the back side, both sides exchange the front and rear side of the image data on the back side. Sends and prints without processing. When the function of the communication destination does not have the double-sided processing function, the front and rear replacement processing of the image data on the back side is performed as usual. As a result, a fax machine with a double-sided original transmission function
In the transmission / reception processing to / from the facsimile having the double-sided printing function, the replacement processing of the image data on the back side is unnecessary, and the load on the image processing on both sides is reduced.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a first embodiment of the configuration of the facsimile transmission / reception system according to the present invention according to the present invention. The facsimile transmission / reception system of the first embodiment is configured by connecting a transmission side facsimile 1 for transmitting a double-sided original and a reception side facsimile 21 for performing double-sided printing via a line 12. Then, the transmitting facsimile 1 includes a scanner 2 as a first double-sided document reading device for reading image data on the back side of a double-sided document from the rear side opposite to the front side, and an operation input unit for inputting an operation instruction from a user. 3, a plotter 4 that prints out the received image data, a main controller 5 that controls the overall operation of the sending facsimile 1, and a connection to the line 12 of the sending facsimile 1 under the control of the main controller 5. A network control unit 6 for performing
The image data on the back side read by the scanner 2 is subjected to image processing to replace the front and rear sides of the image data, and a front and rear side replacement section 7 and a double sided processing control section 8 for performing double sided processing control according to the present invention. Further, the reception-side facsimile 21 has a scanner 22 for reading image data from a document, an operation input section 23 used by a user for inputting operation instructions, and a plotter 24 for sequentially printing out the received image data on both sides of recording paper.
And a main control unit 25 for controlling the entire operation of the reception side facsimile 21, and a network control unit 26 for connecting to the line 12 of the reception side facsimile 21 under the control of the main control unit 25.
And an image data front / rear replacement unit 27 for performing image processing on image data to be printed on the back surface of the recording paper and switching the front and back, and a double-sided processing control for performing the double-sided processing control according to the present invention. And part 28.

Further, the double-sided processing control units 8 and 28 provided in the transmission-side facsimile machine 1 and the reception-side facsimile machine 21, respectively, use the image data front-rear replacement units 7 and 27 as communication destinations during transmission and reception, respectively. Double-sided function notifying units 9 and 29 for notifying that processing is to be performed, communication destination double-sided function determining units 10 and 30 for determining whether or not there is a double-sided processing notification from the communication destination by the double-sided function notifying units 9 and 29, and this communication Based on the result of the determination made by the front-side / double-sided function determining units 10 and 30 that the communication destination has the double-sided processing notification, the first-sided double-sided setting prevents the image data front-rear replacement units 7 and 27 from performing the rear-side image data replacement process. It has function control units 11 and 31. With such a configuration, when the transmission-side facsimile 1 and the reception-side facsimile 21 have the image data front-rear replacement units 7 and 27, respectively, the rear surfaces of the image data front-rear replacement units 7 and 27 are different. The two-sided original is transmitted and the received image data is printed on both sides without replacing the image data. Less than,
Sending-side facsimile 1 and receiving-side facsimile 2
The operation of No. 1 will be described.

First, the transmitting operation of the transmitting facsimile 1 will be described. Based on the line number of the communication destination designated via the operation input unit 3, the main control unit 5 via the network control unit 6
Make a call. If there is a response from the communication destination, the communication destination double-sided function determination unit 10, for example, does the NSF notifying the responded function of the called station side have information to notify the presence or absence of the double-sided printing processing function of the communication destination? Check whether or not. If there is no notification information in this NSF, the communication destination prints the image data on the back side from the same direction as the front side even if it is a normal facsimile that does not have the double-sided print processing function, or even if it has the double-sided print processing function. Judge as a facsimile to be processed. Then, with respect to the double-sided original read by the scanner 2, the front and rear of the image data on the back side are switched by the image data front-rear replacement unit 7 as usual, and the same direction as the front side is set, and then the document is transmitted. However, if there is notification information in the responded NSF, the communication destination determines that the facsimile performs double-sided printing and prints the image data on the back side from the opposite side to the front side.

Based on the result of this judgment, the first double-sided function control section 11 controls the image data front-rear replacement section 7 so that it does not operate. Then, the main controller 5 controls the scanner 2
The image data on the back side of the double-sided original read in step 3 is transmitted in the reverse direction of the front side. Further, the double-sided function notifying unit 9 is a function on the calling station side that sends information to the communication destination that the image data on the back side of the document information to be transmitted has the image processing function of switching in the same direction as the front side. Is sent to the NSS that notifies In this way, the sender facsimile 1
If the communication destination is a facsimile machine having a double-sided print processing function and printing the image data on the back side from the opposite side to the front side, the image processing by the image data front-rear replacement unit 7 at the time of transmission is unnecessary. ..

Next, the printing operation of the facsimile 21 on the receiving side will be described. When a call is received via the network control unit 26,
The double-sided function notifying unit 9 sends information to the communication destination, which informs the facsimile that the facsimile has a double-sided printing processing function and prints the image data on the back side from the opposite side to the front side. And send it. When the NSS is received from the communication destination, the communication destination double-sided function discriminating unit 30 checks whether or not the NSS has information for notifying the presence / absence of the processing function of the double-sided document at the communication destination. If there is no notification information, the communication destination is a normal facsimile that does not have a processing function for double-sided originals, or a facsimile that reads image data on the back side from the same direction as the front side even if it has a processing function for double-sided originals. To judge. When the image data is received, the image data front-rear replacement unit 27 replaces the front and rear of the image data to be printed on the back surface of the recording paper as usual, and reverses the front surface before printing. However, if there is notification information in the received NSS, the communication destination reads the image data on the back side of the double-sided document from the direction opposite to the front side, and performs image processing to replace the front and back of the image data on the back side for transmission. Judge as a facsimile.

Based on the result of this determination, the first double-sided function control section 31 controls the image data front-rear replacement section 27 so that it does not operate. Then, the main control unit 25 sends the received back side image data to the double-sided plotter 24 as it is, that is, in the direction opposite to the front side. In this way, if the communication destination of the receiving-side facsimile 21 is a facsimile that has a double-sided document processing function and reads the image data on the back side from the opposite direction to the front side, the image data at the time of reception is interchanged. The image processing by the unit 27 is unnecessary.
The double-sided processing control units 8 and 28 are provided when the operator gives an instruction to switch from double-sided processing such as double-sided document reading or double-sided printing to normal single-sided processing through a switch (not shown). Includes double-sided function notification units 9 and 29 and communication destination double-sided function determination units 10 and 30, and first double-sided function control units 11 and 31, and image data front-rear replacement units 7 and 27.
Etc. to stop the operation. As a result, each of the transmission-side facsimile 1 and the reception-side facsimile 21 performs a normal single-sided transmission / reception operation.

Generally, for communication of facsimile image data, MR (Modified Relative Ed) is used.
ge Address Design) method,
Using the MMR (Modified MR) method,
Image data is compressed and transmitted. For this reason, the transmission procedure based on the image data front-rear swapping process 7 of the transmission side facsimile 1 is as follows: reading the original document by the scanner 2, storing the read image data in an image memory (not shown), and a code (not shown). The data from the rear end is compressed by the arranging unit and sent to the line 12 via the network control unit 6. The original read by the scanner is first compressed by the encoding unit and then stored in the image memory. When transmitting image data from the rear end, the compressed data stored in the image memory is displayed again. An undecoded decoding unit restores the raw data, stores it in the image memory, then sequentially compresses it from the rear end and sends it out. In addition, for example, MH (Modified)
When the coding method that is read and compressed by the scanner is a line unit like Huffman) coding method, the order of decoding, image memory, coding, and network controller is from the data at the rear end. , It becomes more efficient because there is no need to return all pages to raw data.

Next, the NS of the double-sided function notification units 7 and 27
The notification information of the double-sided function by S and NSF will be described. FIG. 2 is a sequence diagram showing an embodiment of the communication procedure of the facsimile double-sided document transmitting / receiving system in FIG. In FIG. 2, first, in response to a call from the transmitting side, the CSI (Called Stat) is received from the receiving side.
ion Identification, called station identification)
/ NSF and DIS (Digital Iden)
notificationSignal, which informs the machine function of the called station side). Based on this NSF / DIS, the transmitting side knows the function of the receiving side. Here, in this embodiment, in the NSF, the double-sided processing function of the plotter on the receiving side is notified to the transmitting side. That is, a dedicated bit is provided in the FIF shown in FIG. 3 described later. When the transmission side facsimile machine 1 of FIG. 1 recognizes this dedicated bit, it transmits the back side data from the direction opposite to the front side, for example, from the rear end.

Then, the transmitting side receiving the CSI / NSF / DIS sends the NSS and the TCF (Training C).
onFirmation, training check). In this NSS, like the NSF from the receiving side,
By adding the information that has the double-sided processing function of the sending side, the receiving side recognizes that the sending side that has the double-sided processing function sends back side data from the opposite direction to the front side, and the received image data Double-sided printing is performed without replacement processing before and after.

The receiving side receiving the NSS / TCF is
The transmission permission based on F is set to CFR (Confirmatio).
n to receive, modem training successful)
Notify with. Based on this CFR, the transmission side sends out image data (described as PIX in the figure), and EOP (End o
f Procedure, page transmission abortion) to notify the end of image data transmission. On the basis of EOP, the receiving side receives MCF (Message Confirmatio).
In step n), the sender is notified that the image data or the like has been correctly received, and the sender receives DCN after receiving this MCF.
(Disconnect, switching the line from facsimile to telephone) is performed, and the transmission / reception process ends.

FIG. 3 shows the NSF and NSS in FIG.
FIG. 3 is an explanatory diagram showing an example of an HDLC frame configuration for sending a message. In this embodiment, the HDLC sending NSF and NSS is used.
(High-level Data Link Con
frame structure, F is a flag used for synchronization, AF is an address field indicating a station address, CF
Is a control field indicating various identifications and the transmission / reception sequence number of the frame, and FCF is DIS or NSF.
Facsimile control field that stores the code of each control signal such as FIF is DIS or NSF in FCF.
And a FCS is a frame check field used for error detection.

FIG. 4 is a block diagram showing a second embodiment of the structure relating to the present invention of the facsimile transmission / reception system to which the present invention is applied. In the facsimile transmission / reception system of the second embodiment, a receiving-side facsimile 21 for double-sided printing shown in FIG. 1 and a transmitting-side facsimile 41 for controlling transmission of a double-sided original according to the second embodiment are connected to a line 12.
It is configured by connecting with. The transmission side facsimile 41 is provided with an operation input section 43 for performing the same processing as that provided in the transmission side facsimile 1 shown in FIG. 1, a plotter 44, a main control section 45, and a network control section 46. Figure 1
Instead of the scanner 2 described above, the scanner 42 as a second double-sided document reading device that can switch the reading direction of the image data on the back side of the double-sided document to the same direction as the front side or the opposite direction.
And a double-sided processing control unit 48 for performing double-sided processing control according to the present invention. Since the transmitting-side facsimile 41 does not need to perform image processing on the back side image data read by the scanner 42 and replace the front and rear sides of the image data, the image data front-back exchange unit 7 shown in FIG. 1 is unnecessary. The receiving facsimile 21 is the same as that described with reference to FIG. 1, and a detailed description of its configuration will not be given here.

The double-sided processing control unit 48 provided in the transmitting side facsimile 41 notifies the communication destination at the time of transmission that the double-sided processing using the scanner 42 will be performed.
9, a communication destination double-sided function determination unit 50 that determines whether or not there is a double-sided processing notification by the double-sided function notification unit 29 from the receiving-side facsimile 21 that is the communication destination, and a double-sided processing of the communication destination by the communication destination double-sided function determination unit 50. A second double-sided function control unit 51 is provided for switching the reading direction of the image data on the back side by the scanner 42 based on the determination result of the presence of the notification.

With such a configuration, the transmission side facsimile 41 is such that the communication destination facsimile is the image data front-rear changing unit 27 like the reception side facsimile 21 shown in this figure.
When performing the double-sided printing process, the communication destination double-sided function determination unit 50 recognizes that fact, and the second double-sided function control unit 51 determines the reading direction of the image data on the back surface by the scanner 42. The control is performed in the opposite direction to the front side to send a double-sided original. At this time, the receiving facsimile 21
Similar to the operation described in FIG. 1, double-sided printing of the received image data is performed without using the image data front-back interchange unit 27. Also, if the destination facsimile is a normal facsimile that does not have a double-sided printing processing function, or if it has a double-sided printing processing function and is a facsimile that prints image data on the back side from the same direction as the front side, send it. The side facsimile 41 makes the reading direction of the image data of the back side by the scanner 42 the same as the front side. In this way
The transmission side facsimile 41 switches the reading direction of the image data on the back surface by the scanner 42 in accordance with the function of the communication destination facsimile.

As described above with reference to FIGS. 1 to 4, in the facsimile transmission / reception system of this embodiment, the image data on the back side of the double-sided original is checked while confirming the functions of the other party on the sending side and the receiving side. It has a function to control the reading process and the printing process of the image data on the back side of the double-sided printing on the recording paper, and the facsimile on both the sending side and the receiving side has the function of performing the image processing to switch the front and back of the image data on the back side. If both of them are recognized, both sides perform the transmission and the printing process without performing the process of replacing the front and rear image data. As a result, in the transmission / reception processing from the facsimile having the double-sided document transmitting function to the facsimile having the double-sided printing function, the rear side image data replacement processing becomes unnecessary,
The load of image processing on both sides is reduced. The present invention is not limited to the embodiment described with reference to FIGS.

[0022]

According to the present invention, in the transmission / reception of a double-sided original between a facsimile which transmits a double-sided original and a facsimile which performs double-sided printing of the received image data, the front and rear sides of the back-side image data are exchanged with each other. Since it is not necessary to perform image processing, it is possible to efficiently send and receive double-sided originals.

[0023]

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of a configuration relating to the present invention of a facsimile transmission / reception system to which the present invention is applied.

FIG. 2 is a sequence diagram showing an embodiment of a communication procedure of the double-sided document transmitting / receiving system of the facsimile shown in FIG.

FIG. 3 is an HDL sending NSF and NSS in FIG.
It is explanatory drawing which shows one Example of C frame structure.

FIG. 4 is a block diagram showing a second embodiment of the configuration of the facsimile transmission / reception system according to the present invention according to the present invention.

[Explanation of symbols]

 1 Sender-side facsimile 2 Scanner 3 Operation input unit 4 Plotter 5 Main control unit 6 Network control unit 7 Image data front / back replacement unit 8 Double-sided processing control unit 9 Double-sided function notification unit 10 Communication destination double-sided function determination unit 11 First double-sided function control Part 12 Line 21 Receiving side facsimile 22 Scanner 23 Operation input part 24 Plotter 25 Main control part 26 Network control part 27 Rearrangement part of image data 28 Double-sided processing control part 29 Double-sided function notifying part 30 Communication destination double-sided function determination part 31 First Double-sided function control unit 41 Sending-side facsimile 42 Scanner 43 Operation input unit 44 Plotter 45 Main control unit 46 Network control unit 48 Double-sided processing control unit 49 Double-sided function notification unit 50 Communication destination double-sided function determination unit 51 Second double-sided function control unit

Claims (4)

[Claims] 1. A first double-sided original reading means for reading image data on the back side of a double-sided original from a rear direction opposite to the front side, and image processing for image data on the back side read by the first double-sided original reading means. It is equipped with image data front / rear replacement means to switch the front and back, and the back side image data is in the same direction as the front side, and the sending side facsimile that sends a double-sided original and the back side of the recording paper among the received image data In a double-sided original document transmission / reception system of a facsimile including a receiving-side facsimile having double-sided printing processing means for performing double-sided printing of received image data by replacing the front and back of image data to be printed with the above-mentioned image data front-back replacement means, Each of the transmission side facsimile and the reception side facsimile uses a double-sided processing using the image data front-rear switching means at the communication destination during transmission and reception. Double-sided function notifying means for notifying that communication is to be performed, a destination double-sided function determining means for determining whether or not there is a double-sided processing notification from the communication destination by the double-sided function notifying means, and both sides of the communication destination by the communication destination double-sided function determining means. A first double-sided function control means is provided for preventing the rear side image data exchange processing from being performed by the image data front-back exchange means based on the result of determination that the processing notification is present. A double-sided original document transmission / reception system for a facsimile, wherein, when both of the facsimiles have the image data front-rear replacement means, the rear surface image data replacement processing is not performed by the image data front-rear replacement means. 2. The facsimile double-sided document transmitting / receiving system according to claim 1, wherein the double-sided function notifying means is:
A double-sided original document transmission / reception system for facsimiles, characterized in that double-sided processing information indicating that double-sided processing is performed using the image data front-rear switching means is added to call connection information to be transmitted to the communication destination, and is notified to the communication destination. .. 3. The facsimile double-sided original document transmission / reception system according to claim 1, wherein the transmission-side facsimile is a substitute for the first double-sided original document reading means and the image data front-rear replacement means. In addition, a second double-sided document reading unit that can freely switch the reading direction of the image data on the back side of the double-sided document is provided instead of the double-sided function control unit to notify the double-sided processing notification of the communication destination by the communication destination double-sided function determination unit. A double-sided function control means for controlling the switching of the reading direction of the image data on the back side of the double-sided document by the second double-sided document reading means based on the result of the determination of the presence or absence of the both sides of the facsimile. Manuscript transmission / reception system. 4. The facsimile double-sided document transmission / reception system according to claim 1, wherein each of the transmission-side facsimile and the reception-side facsimile receives the double-sided function switching instruction input by an operator. A double-sided original document transmission / reception system for a facsimile, which is provided with a double-sided processing control means for controlling the switching from the double-sided processing to the normal single-sided processing, including the operation stop control of the double-sided function notifying means and the destination double-sided function determining means.