JPH1127434A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a printing similar to an original document on a reception side without changing a communication means by confirming that there is a double-side printing function on the reception side and transmitting page information to the reception side. SOLUTION: A reception side confirms a bit for indicating a double-side printing function of a non-standard function identification signal(NSF) and transmits a transmission terminal identifier(TSI) and a non-standard function set signal(NSS) to the reception side. In the NSS signal is inserted information on double-side reading and on each page is inserted information on whether double-side reading or one-side reading. Then, a printing control part 7 on the reception side sends picture data to a use face printing part 6 and a one-side printing is performed. It is informed to the reception side by the NSS that the first picture data are one-side printed and when the one-side printing is completed, the first sheet is discharged. Also the reception side is made to find by the NSS that the second sheet of document is double-side printed and when a printing is finished with one face, printing of the other face is prepared.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus capable of reading both sides and printing on both sides.

[0002]

2. Description of the Related Art In recent years, as the functions of facsimile apparatuses have been improved, apparatuses capable of double-sided reading and double-sided printing have emerged.
The T.U. Since it is not defined in S30, the same procedure is used when transmitting both-side read data and when transmitting one-side read multiple-page data. When transmitting data of a plurality of pages, an MPS (multi-page signal) is sent from the transmitting side to the receiving side for notification, but a signal on both sides cannot be added to this MPS.

[0003]

Even in a facsimile apparatus having both functions of reading and printing on both sides, since there is no information on both sides in the communication procedure, the data to be transmitted is the data read from both sides of the document. The data is sent to the receiving device without discrimination whether the data is read from one side or the other. Even if the receiving device has a duplex printing function,
The transmitting device does not know whether the receiving device prints the received data on both sides or on one side. Therefore, when a document having data on both sides (double-sided document) and a document having data on one side (single-sided document) are mixed and transmitted, there is a problem that the receiving apparatus cannot obtain the same print output as the document. Was.

[0004]

According to the present invention, there is provided a facsimile apparatus having a reading unit capable of reading both sides of a document and a printing unit capable of performing double-sided printing. Registration means for registering information on whether each page is printed or double-sided printing for each page, a function of inserting the information registered by the registration means into a predetermined signal and transmitting the information, and inserting the information into the predetermined signal and transmitting the information A function of performing one-sided printing or two-sided printing of the received data based on the received information.

According to the present invention having the above-described configuration, when data of a document is transmitted, information on whether each page is double-sided data or single-sided data is notified to the receiving side. On the receiving side, data of each page is printed on both sides or one side based on the received information.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. Elements common to the drawings are assigned the same reference numerals. FIG. 1 is a block diagram showing a facsimile apparatus according to the first embodiment.

In FIG. 1, a CPU 1 controls the entire facsimile apparatus, and comprises an arithmetic circuit, a direct memory access control circuit, an interrupt control circuit, and the like. An operation interface unit 2 is connected to the CPU 1, and the operation interface unit 2 inputs registration data such as a telephone number and a password.
The double-sided reading unit 3 includes an image reading sensor that reads a document,
One-sided reading and double-sided reading of a document are performed. The image processing unit 4 performs image processing on the image data read by the duplex reading unit 3. The encoding / decoding unit 5 encodes and decodes image data with reference to the Huffman table.

The double-sided printing unit 6 prints out received image data under the control of the printing control unit 7, and performs single-sided printing and double-sided printing. The RAM 8 temporarily stores image data and also stores registration data input from the operation interface unit 2. Communication control unit 9
T. is an ITU-T recommendation. The communication procedure defined by 30 or the like is controlled. The modem 10 modulates communication data into analog data and demodulates the data from analog data. The line control unit 11 controls connection with a line switching network.

FIG. 2 is an explanatory diagram showing the operation interface unit. In FIG. 2, the operation interface unit 2 includes an LCD panel 21 and input keys 2.
2, 23 are provided. The input key 22 is pressed when the corresponding page of the document is read on both sides, and the input key 23 is pressed when the corresponding page of the document is read on one side. How many pages of information are currently input is L
It can be known by sequentially displaying the pages on the CD panel 21.

Next, the operation will be described. Here, a document to be transmitted includes a document having image data on both sides, and the operation when the receiving side outputs the document in the same manner as the document will be described, focusing on the communication procedure. It is assumed that both the facsimile apparatus on the transmitting side and the facsimile apparatus on the receiving side have a function of reading and printing on both sides.

First, the operator uses the operation interface unit 2 to input information as to whether to perform double-sided reading or single-sided reading for each page of a document to be transmitted. The input information (registration data) is registered by being stored in the RAM 8.

Next, a communication procedure according to the first embodiment will be described with reference to FIG. FIG. 3 is a diagram of T.T. FIG. 4 is a sequence diagram showing a communication procedure according to the first embodiment conforming to No. 30, and FIG. 4 is a flowchart showing a communication operation on the transmission side. First, the transmitting side transmits CNG (calling tone) and calls the receiving side. In response to this, the receiving device
Sends CED (Called Terminal Identification Signal) to the transmitting side,
The NSF (non-standard function identification signal), CSI (called terminal identification signal) and DIS (digital identification signal) are sent to the transmitting side. The sender accepts these signals (step 1). At this time, as shown in FIG. 5, using the bits in the NSF signal, it is declared that the device on the receiving side has the duplex printing function. FIG. 5 is an explanatory diagram showing the configuration of the NSF signal.

The transmitting side checks the bit indicating the double-sided printing function of the NSF, and determines the TSI (transmitting terminal identification signal) and the NSS
(Non-standard function setting signal) is sent to the receiving side (step 2). As shown in FIG. 6, information on double-sided reading is inserted into the NSS signal, as well as information on whether each page of the document is double-sided or single-sided.
FIG. 6 is an explanatory diagram showing the configuration of the NSS signal.

In FIG. 6, in the NSS, the bit 31 of the double-sided function is set in the content designation item, and the RAM 8
Based on the information registered in, a bit 32 is set as page information indicating whether all pages are double-sided or single-sided. In the present embodiment, “1” is set for double-sided reading, and “0” is set for single-sided reading. The example of FIG. 6 indicates that the first and third pages of the document are single-sided reading and the second page is double-sided reading. Next, the transmitting side transmits a TCF (training check).

The receiving side confirms the information of each page with the NSS, sets the printing mechanism of the double-sided printing section 6 to a double-sided mode (a mode in which both sides can be printed), and sets the transmitting side to C
An FR (reception preparation confirmation signal) is sent (step 3). Upon receiving the CFR, the transmitting side reads each page of the document separately on one side and both sides based on the page information registered in the RAM 8.

The double-sided reading section 3 reads one side of the first sheet of the document, and the read image data is processed by the image processing section 4 and encoded by the encoding / decoding section 5. The encoded image data is modulated into analog data by the modem 10,
It is controlled by the communication control unit 9 and transmitted to the receiving side via the line control unit 11 (step 4). For the first document, only one side is read based on the page information.
Since the original to be sent still remains,
Is transmitted (step 6).

When the receiving side receives the image data from the line controlled by the line controller 11, it is demodulated by the modem 10, further decoded by the encoder / decoder 5 and sent to the print controller 7. The print control unit 7 transmits the image data to the duplex printing unit 6.
To perform single-sided printing. The receiving side is informed by the NSS that the first image data is single-sided printing. When the single-sided printing is completed, the first sheet is discharged.

The receiving side transmits an MCF (message confirmation), and when the transmitting side receives the MCF, the second document is read. Since the second sheet is double-sided reading according to the page information registered in the RAM 8, the two-sided reading unit 3
One side of the sheet is read. The read image data is
It is transmitted to the receiving side (step 4). Since the original to be transmitted still remains, the transmitting side transmits the MPS (step 6).

When the receiving side receives the second image data,
The image data is first printed on one side by the double-sided printing unit 6. The receiving side is informed by the NSS that the second document is to be printed on both sides, and prepares for printing on the opposite side when printing on one side is completed.

The receiving side transmits the MCF, and the transmitting side transmits the MCF.
When the CF is received, the other side of the second original is read. The read image data is transmitted to the receiving side (step 4). Since the original to be transmitted still remains, the transmitting side transmits the MPS (step 6).

When the receiving side receives the third image data,
The image data is printed by the double-sided printing unit 6 on the opposite side of the sheet previously printed. The receiving side is informed by the NSS that the second document is printed on both sides, and discharges the sheet when printing on both sides is completed.

The receiving side transmits the MCF, and the transmitting side transmits the MCF.
When the CF is received, the third document is read. The third sheet is one-sided reading according to the page information registered in the RAM 8, so the double-sided reading unit 3 reads only one side of the third sheet.
The read image data is transmitted following the training signal (step 4). Since the original to be transmitted is now completed, the transmitting side transmits EOP (end of procedure) (step 7), and when the MCF is transmitted from the receiving side, DC
After transmitting N (disconnection command), the procedure is terminated.

When the receiving side receives the fourth image data,
The image data is printed on one side of the paper by the duplex printing unit 6.
The receiving side is informed by the NSS that the third document is single-sided printing, and discharges the sheet when printing on one side is completed.

The circled numbers shown in FIG. 3 correspond to the steps in FIG. 4, and the numbers shown after the image data indicate the order in which the image data is sent. In the example of FIG. 3, the second image data and the third image data are transmitted. The image data is the image data of both sides of the second document.

As described above, according to the first embodiment, double-sided reading and double-sided printing are performed by adding information of a double-sided function to NSF and NSS and further adding page information of a document to NSS. Image data in accordance with T.T. 30 can be transmitted without changing the communication procedure, and there is an effect that the receiving side can perform the same print output as the original.

Next, a second embodiment of the present invention will be described. In the second embodiment, information on double-sided printing is
This is added to S and transmitted to the receiving side.
The configuration of the facsimile apparatus of the second embodiment is the same as that of the first embodiment shown in FIG. Therefore, the description of the configuration will be omitted, and the transmission / reception operation will be described focusing on the communication procedure. FIG. 7 is a sequence diagram illustrating a communication procedure according to the second embodiment.

As in the first embodiment, information on whether to read both sides or one side of each page of the document is input from the operation interface 2 and stored in the RAM 8, whereby the page information is registered. In the second embodiment, the number of originals to be transmitted is three.
It is assumed that the first and third sheets are read on both sides and the second sheet is read on one side.

In FIG. 7, although not shown first, when the transmitting side transmits CNG and calls the receiving side, the receiving side apparatus transmits the CED to the transmitting side, and simultaneously transmits NED, CSI and Send DIS to sender. The sender accepts these signals. At this time, as in the first embodiment, using the bits in the NSF signal, the device on the receiving side declares that it has the duplex printing function. The reason why NSF is used to declare the duplex printing function is that the bit for declaring the duplex printing function is not standardized in the DIS which is a standard procedure signal. If a bit declaring a printing function is assigned, DIS can be used.

The transmitting side checks the bit indicating the double-sided printing function of NSF, sends TSI and NSS to the receiving side, and further transmits TCF. Information indicating that a double-sided original is included is inserted into the NSS signal.

The receiving side confirms the contents of the NSS, sets the printing mechanism of the double-sided printing section 6 to the double-sided mode, and sends the CFR to the transmitting side. When the transmitting side receives the CFR,
Based on the page information registered in AM8, each page of the document is read while being distinguished between one side and both sides.

The double-sided reading section 3 reads one side of the first page of the document, and the read image data is processed by the image processing section 4 and encoded by the encoding / decoding section 5. The encoded image data is modulated into analog data by the modem 10,
The data is transmitted to the receiving side via the line control unit 11 under the control of the communication control unit 9. Both sides of the first document are read based on the page information. First, the read image data of one side is transmitted. Subsequently, the transmitting side transmits the MPS because the document to be transmitted still remains. By sending the MPS, it is notified that there is a page with similar characteristics next, but in the MPS,
As shown in FIG. 8, information indicating that the next page is the back side of double-sided reading is added as additional information. FIG.
FIG. 3 is an explanatory diagram illustrating a configuration of a PS.

Referring to FIG. 8, a facsimile information field 41 is added to a normal MPS, and the facsimile information field 41 has both-side attributes, that is, information on the front side or the back side, as well as page information.
In FIG. 8, the front surface is indicated by “00” and the back surface is indicated by “01”.

When the receiving side receives the image data of the first surface, the double-sided printing unit 6 performs single-sided printing. The receiving side is informed by MPS that the next image data is image data on the back side of double-sided reading, and prepares for printing on the opposite side when printing on one side is completed.

The receiving side transmits the MCF, and the transmitting side transmits the MCF.
Upon receiving the CF, the double-sided reading unit 3 reads the back surface of the first document. The read image data is transmitted to the receiving side. Since the original to be transmitted still remains, the transmitting side transmits the MPS. The MPS transmitted here is shown in FIG.
Is a signal to which the facsimile information field 41 is not added, and only the fact that there is a page having similar characteristics is notified.

When the receiving side receives the second image data,
The image data is printed on the back side of the first sheet by the duplex printing unit 6. The receiving side is informed by MPS that the second image data is the back side of double-sided reading. The receiving side sends the MCF to the transmitting side.

When the transmitting side receives the MCF, the image data of the second sheet of the original is read and transmitted to the receiving side.
Send In the MPS transmitted here, the facsimile information field 4
This is a signal to which 1 is not added.

When the receiving side receives the third image data,
The image data is printed on the second sheet by the duplex printing unit 6, and the MCF is transmitted to the transmission side.

When the transmitting side receives the MCF, the third side of the document is read. Since the third page is double-sided according to the page information registered in the RAM 8, the double-sided reading unit 3 first reads the front side of the third page. The read image data is transmitted to the receiving side, and then the MPS is transmitted. In the transmitted MPS, information indicating that the next page is the back side of double-sided reading is added as additional information.

When the receiving side receives the image data of the third front side, the double-sided printing section 6 performs single-sided printing. The receiving side is informed by MPS that the fourth image data is image data of the front side of double-sided reading, and prepares for printing on the opposite side when printing on one side is completed.

The receiving side transmits the MCF, and the transmitting side transmits the MCF.
Upon receiving the CF, the double-sided reading unit 3 reads the back surface of the third original. The read image data is transmitted to the receiving side. Now that the image data to be sent has been completed,
The transmitting side transmits the EOP.

When receiving the image data, the receiving side prints the image data on the back side of the third sheet by the double-sided printing unit 6. The receiving side is informed by MPS that the fifth image data is the back side of double-sided reading. The receiving side sends the MCF to the transmitting side. When the sending side receives the MCF from the receiving side,
The DCN is transmitted and the procedure ends.

As described above, according to the second embodiment, information of double-sided reading is added to the MPS signal, which is a procedure signal, and page information of image data to be sent next is notified to the receiving side. As a result, the image data for double-sided reading and double-sided printing can be used in accordance with T.T. 30 can be transmitted without changing the communication procedure, and there is an effect that the receiving side can perform the same print output as the original.

Next, a third embodiment of the present invention will be described. The facsimile apparatus of the third embodiment transmits image data of both sides of a document in the same phase. FIG. 9 is a block diagram showing a facsimile apparatus according to the third embodiment. In FIG. 9, a storage memory 12 is provided in the facsimile apparatus according to the third embodiment. The storage memory 12 stores encoded image data for transmission or received image data, and can store image data for two pages. Other configurations are the same as those of the first embodiment.

Next, the transmission / reception operation will be described focusing on the communication procedure. FIG. 10 is a diagram showing the T.T. 30 A
FIG. 14 is a sequence diagram showing a communication procedure according to a third embodiment conforming to nnexA. Information on whether to read double-sided or single-sided pages for each page of the document is input from the operation interface 2 as in the first embodiment.
, And thereby the page information is registered. In the third embodiment, as in the second embodiment, the number of originals to be transmitted is three, the first and third are both-sided reading, and the second is one-sided reading. It is assumed that

In FIG. 10, although not shown first,
When the transmitting side transmits CNG and calls the receiving side, the receiving side apparatus sends the CED to the transmitting side and sends NSF, CSI and DIS to the transmitting side. The sender accepts these signals. At this time, as in the first embodiment, using the bits in the NSF signal, the device on the receiving side declares that it has the duplex printing function.

The transmitting side checks the bit indicating the double-sided printing function of NSF, sends TSI and NSS to the receiving side, and further transmits TCF. Information indicating that a double-sided original is included is inserted into the NSS signal.

The receiving side checks the contents of the NSS, sets the printing mechanism of the double-sided printing section 6 to the double-sided mode, and sends the CFR to the transmitting side. When the transmitting side receives the CFR,
Based on the page information registered in AM8, each page of the document is read while being distinguished between one side and both sides.

The double-sided reading unit 3 reads the front side of the first sheet of the document, and the read image data is processed by the image processing unit 4 and encoded by the encoding / decoding unit 5. The encoded image data is stored in the storage memory 12. After the storage, the double-sided reading unit 3 reverses the original and reads the back surface of the first sheet. The read back image data is processed by the image processing unit 4, encoded by the encoding / decoding unit 5, and stored in the storage memory 12 in the same manner as the front image data. The front and back image data stored in the storage memory 12 are combined into one image data by the communication control unit 9 and transferred to the modem 10. Modem 10
The image data transferred to the line control unit 1 is modulated into analog data, and then controlled by the communication control unit 9 again.
It is sent to the line via 1.

The front and back image data of the first sheet is transmitted in a frame of HDLC format (high-level transmission control procedure).
FIG. 11 shows the frame configuration. In FIG. 11, the frame structure includes a synchronous part 51, an FCD (facsimile code data) part 52 for storing image data for one page,
RTC (control return signal) unit 53 indicating the end of image data of one page FCD storing image data of one page
It comprises a (facsimile code data) section 54, an RTC (control return signal) section 55 representing the end of one page of image data, and an RCP (partial page control return signal) section. Of these, the FCD units 52 and 54 and the RCP unit 56 are divided into frames of 256 bytes. The front side image data is stored in the FCD unit 52, and the back side image data is stored in the FCD unit 54. The image data on the front side and the image data on the back side are stored continuously without passing through the RCP unit 56.

After transmitting the image data of the front and back sides of the first sheet, the transmitting side determines that the original to be transmitted still remains.
And wait for a response from the receiver. The image data input from the line controller 11 is demodulated by the modem 10, processed by the communication controller 9, and stored in the storage memory 12. The image data on the front and back sides stored in the storage memory 12 is separated from the image data on the front side and the image data on the back side, and is decoded into binary data by the encoding / decoding unit 5 as separate image data. Thereafter, under the control of the print control unit 7, the image data on the front side is printed on the front side of the paper and the image data on the back side is printed on the back side of the paper in the double-sided printing unit 6.

When the receiving side receives the MPS,
Send CF. When the transmitting side receives the MCF, the double-sided reading unit 3 reads the second surface of the document. The read image data is transmitted to the receiving side. Here, the image data for one page is naturally transmitted. Subsequently, the transmitting side transmits the MPS because the original to be transmitted still remains.

When the receiving side receives the second image data,
The image data is printed on the front side of the second sheet by the double-sided printing unit 6. The receiving side sends the MCF to the transmitting side.

When the transmitting side receives the MCF, it reads the image data on the front and back surfaces of the third original, transmits the image data to the receiving side, and transmits the EOP. The image data transmitted here is also shown in FIG.
As shown in FIG. 1, the image data of the front side and the image data of the back side are continuously transmitted.

Upon receiving the image data of the front and back sides of the third sheet, the receiving side prints the image data of the front and back sides on the front and back sides of the third sheet in the same manner as in the case of the first sheet. , And transmits the MCF to the transmitting side. When the transmitting side receives this MCF, it transmits a DCN and ends the procedure.

As described above, according to the third embodiment, the image data on both sides is collectively transmitted in the phase C (at the time of transmitting the image data).
T. Recommendation T. The same print output as that of the original can be performed on the receiving side without changing the communication procedure of No. 30, and image data transmission can be speeded up.

Next, a fourth embodiment of the present invention will be described. In the facsimile apparatus of the fourth embodiment, every time image data is transmitted, information on double-sided printing is added to the NSS and transmitted to the receiving side. FIG. 12 is a block diagram showing a facsimile apparatus according to the fourth embodiment.

In FIG. 12, the facsimile apparatus according to the fourth embodiment is provided with an operation unit 13.
From the setting of whether to scan the original on both sides or one side,
It is also possible to set whether the received image data is to be printed on both sides or on one side. If duplex setting is set in the transmission-side apparatus, duplex scanning is performed for all originals even if originals on only one side are mixed.
When duplex printing is set in the receiving apparatus, the received image data is always printed on both sides. The other configuration of the facsimile apparatus of the fourth embodiment is similar to that of the first embodiment shown in FIG.
This is the same as that of the embodiment.

Next, the transmission / reception operation will be described focusing on the communication procedure. FIG. 13 is a sequence diagram showing a communication procedure according to the fourth embodiment, FIG. 14 is a flowchart showing an operation on the transmitting side in the fourth embodiment, and FIG. 15 is an operation on the receiving side in the fourth embodiment. It is a flowchart shown.

In the transmitting apparatus, whether the original is read on both sides or on one side is designated by the operation unit 13. In the fourth embodiment, it is assumed that the number of originals to be transmitted is three, the first and third pages are both-side reading, and the second one-side reading.

In FIG. 13, FIG. 14, and FIG. 15, first, it is confirmed that the duplex printing is turned on by the user setting via the operation unit 13 in the apparatus on the receiving side (step 31). If the receiving apparatus has the duplex printing function (step 32), the receiving apparatus sets the signal NSF to have the duplex printing function (step 33). If the duplex apparatus does not have the duplex printing function, the receiving apparatus sets NSF. No double-sided printing function is set (step 34). The setting of the NSF with the double-sided printing function is performed in the same manner as in the first embodiment. In this way, if the receiving device has a duplex printing function,
Using the bits in the NSF signal, the receiving device declares that it has duplex printing capability. If the receiving apparatus does not have the double-sided printing function, the NSF is set to no double-sided printing function. Upon receiving CNG from the transmitting side, CE
D to the sender, NSF, CSI and DI
S is sent to the transmitting side (step 35).

When the transmitting side receives the NSF (step 1)
1) Check the bit indicating the NSF double-sided printing function (step 12). Thus, the transmitting side determines whether or not double-sided printing is specified (step 13), and if so, sets a double-sided printing instruction, page number m, and front / back n in signal NSS (step 14). Since the image data transmitted first is the image data of the front side of the first document, the page number is 1 and the front and back sides are set. As a result, information indicating that a double-sided original is included is inserted into the NSS signal as shown in FIG. FIG. 16 shows the fourth
FIG. 4 is an explanatory diagram illustrating a configuration of an NSS signal according to the embodiment.
If double-sided printing is not specified, the signal NSS
Is set (step 15). The transmitting side transmits the TSI and NSS to the receiving side (step 16,
17) Further, the TCF is transmitted.

The receiving side receives the NSS (step 3
6), confirm the contents (step 37), set the printing mechanism of the duplex printing unit 6 to the duplex mode, and send the CFR to the transmission side. Upon receiving the CFR, the transmitting side reads the document separately on one side and both sides based on the information on whether to perform double-sided reading or single-sided reading specified by the operation unit 13 (steps 18 and 19). 21, 2
2, 23). In this example, double-sided reading is designated, and in step 20, the first surface of the original is read.

The double-sided reading unit 3 reads the first surface of the original, the read image data is processed by the image processing unit 4, encoded by the encoding / decoding unit 5, and transferred to the modem 10. The image data transferred to the modem 10 is modulated into analog data and then sent out to the line via the line control unit 11 while being controlled by the communication control unit 9 again. At this time, the image data is transmitted as image data of the front side of the first document (step 24). When the one-sided printing instruction is set, the page number and the information on the front and back are not added to the image data to be sent (step 25).

On the receiving side, upon receiving the image data (steps 38 and 39), if double-sided printing is specified, NS
The image data is printed on the front side of the sheet according to the page number “1” of S and the front / back information “front” (step 40). If single-sided printing is designated, image data is printed on one side of the sheet (step 41).

After transmitting the image data, the transmitting side still has an original to be transmitted (steps 26 and 27).
Send The receiving side confirms the end of the image data by receiving the EOM, transmits the MCF, and waits for the next image data to be transmitted (steps 42 and 43). By transmitting the EOM, the transmitting side transmits the MCF from the receiving side.
After reception, the communication procedure will be repeated from the beginning of phase B.

Thereafter, the transmitting side and the receiving side repeat the flow shown in FIGS. 14 and 15, respectively. However, the information set in the NSS transmitted from the transmitting side includes a double-sided printing instruction and information indicating that it is image data on the back of the first document and information indicating that it is on the back side as a page number.

On the transmitting side, the double-sided reading section 3 reads the back side of the first page of the document, and the read image data is sent out as the image data of the back side of the first page of the document. When receiving the image data, the receiving side prints the received image data on the back surface of the previously printed sheet according to the NSS page number “1” and the front / back information “back”.

After transmitting the image data, the transmitting side transmits the EOM because there is still an original to be transmitted. Sender is E
By transmitting the OM, the communication procedure is repeated from the beginning of the phase B after receiving the MCF from the receiving side. As long as there are still originals to be transmitted, the communication procedure is repeated from the beginning of phase B, and the image data to be transmitted is the second table, the second back, the third table, The transmission is performed in the order of the third back, and the receiving side performs printing in the same manner as the second front, the second back, the third front, and the third back. Here, in this example, the second document has image data only on one side, but even in this case, the second side without image data is read and the read data is transmitted, and the receiving side also transmits the read data. Will be printed.

As described above, according to the fourth embodiment, even if the process returns to the phase B every time the image data of one page is transmitted, the T.30 is an ITU-T recommendation. 30
The same print output as the original can be performed on the receiving side without changing the communication procedure.

Next, a fifth embodiment of the present invention will be described. The facsimile apparatus according to the fifth embodiment transmits information on double-sided printing to a receiving side simultaneously with image data. The configuration of the facsimile apparatus of the fifth embodiment is similar to that of the fourth embodiment shown in FIG. 12, and the description of the configuration is omitted.

Next, the transmission / reception operation will be described focusing on the communication procedure. FIG. 17 is a sequence diagram illustrating a communication procedure according to the fifth embodiment, FIG. 18 is a flowchart illustrating an operation on the transmitting side according to the fifth embodiment, and FIG. 19 is a diagram illustrating an operation on the receiving side according to the fifth embodiment. It is a flowchart shown.

In the transmitting apparatus, whether the original is read on both sides or on one side is designated by the operation unit 13. In the fifth embodiment, as in the fourth embodiment, the number of originals to be transmitted is three, the first and third are double-sided reading, and the second is It is assumed that the reading is one-sided.

In FIGS. 17, 18 and 19, it is first confirmed that the duplex printing is turned on by the user through the operation unit 13 in the receiving apparatus (step 71). If the receiving apparatus has the duplex printing function (step 72), the receiving apparatus sets the signal NSF to have the duplex printing function (step 73). If the duplex apparatus does not have the duplex printing function, the receiving apparatus sets the NSF. No double-sided printing function is set (step 74). The setting of the NSF with the double-sided printing function is performed in the same manner as in the first embodiment. In this way, if the receiving device has a duplex printing function,
Using the bits in the NSF signal, the receiving device declares that it has duplex printing capability. If the receiving apparatus does not have the double-sided printing function, the NSF is set to no double-sided printing function. Upon receiving CNG from the transmitting side, CE
D to the sender, NSF, CSI and DI
S is sent to the transmitting side (step 75).

When the transmitting side receives the NSF (step 5)
1) Check the bit indicating the double-sided printing function of NSF (step 52). Accordingly, the transmitting side determines whether or not double-sided printing is specified (step 53), and if so, sets a double-sided printing instruction in the signal NSS (step 54). FIG. 20 shows the NSS of the fifth embodiment.
FIG. 4 is an explanatory diagram showing signals. As shown in the figure, only information indicating that the reading is double-sided is inserted into the NSS. If double-sided printing is not specified, a single-sided printing instruction is set in the signal NSS (step 55). The transmitting side is TSI
And NSS are transmitted to the receiving side (steps 56 and 5).
7) Further, the TCF is transmitted.

The receiving side receives the NSS (step 7).
6), confirm the contents (step 77), set the printing mechanism of the duplex printing unit 6 to the duplex mode, and send the CFR to the transmitting side. Upon receiving the CFR, the transmitting side reads the original document separately on one side and both sides based on the information on whether to perform double-sided reading or single-sided reading specified by the operation unit 13 (steps 58 and 59). 61, 6
2, 63). In this example, double-sided reading is designated, and in step 60, the first surface of the original is first read.

The double-sided reading section 3 reads the front side of the first sheet of the document, the read image data is processed by the image processing section 4, encoded by the encoding / decoding section 5, and transferred to the modem 10. The image data transferred to the modem 10 is modulated into analog data and then sent out to the line via the line control unit 11 while being controlled by the communication control unit 9 again. At this time, the image data is transmitted as image data of the front side of the first document (step 64).
As shown in FIG. 7, a page number “1” and front / back information “front” are added as page information. In this case, although the number of bits of the front and back information is sufficient, it is assumed that the number of bits of the page number is secured as needed. If the one-sided printing instruction is set, the page number and the front and back information are not added to the image data to be sent (step 65).

On the receiving side, when the image data is received (steps 78 and 79), if double-sided printing is specified, the page number "1" of the page information transmitted together with the image data and the front / back information "front" are used. The image data is printed on the surface of the paper (step 80). If single-sided printing is designated, image data is printed on one side of the sheet (step 81).

After transmitting the image data, the transmitting side still has an original to be transmitted (steps 66 and 67).
Send. Thus, the receiving side confirms that there is still image data to be sent (steps 82 and 83), and the MCF
And wait for the next image data to be transmitted.

On the transmitting side, image data obtained by reading the back side of the first page of the document by the duplex reading unit 3 is transmitted as image data of the back side of the first page of the document. At this time, at the beginning of the image data,
As the page information, the information of the back side in the first page is simultaneously transmitted. On the receiving side, based on this information, the received image data is printed on the back side of the previously printed sheet.

After transmitting the image data, the transmitting side transmits the MPS because there is still an original to be transmitted, and transmits the next image data after receiving the MCF from the receiving side. The surface data is added to the image data on the second page. Less than,
This operation is repeated, and the image data to be transmitted is transmitted in the order of the second back, the third table, and the third back, and the receiving side similarly performs the second back, Printing is performed in the form of the front of the third sheet and the back of the third sheet. here,
In this example, the second document has image data on only one side,
Even in this case, the back side of the second sheet without image data is read and the read data is transmitted, and the receiving side also prints the read data.

As described above, according to the fifth embodiment, even if the page information is transmitted together with the image data, it is possible to transmit the page information together with the image data. The same print output as that of the original document can be performed on the receiving side without changing the communication procedure of 30.

The present invention is not limited to the above embodiments, and various modifications are possible. For example,
In the fourth and fifth embodiments, a page number is transmitted as page information, but printing can be performed on the receiving side without necessarily transmitting the page number.

In each of the first, second, and third embodiments, the operation interface unit is provided so that the operator instructs double-sided reading.
As shown in FIG. 2, a blank sheet determination unit may be provided to determine whether a document is a double-sided document or a single-sided document, thereby eliminating manual input. FIG. 22 is a block diagram showing a facsimile apparatus according to the sixth embodiment.

In FIG. 22, the blank page determination unit 14 counts the total number of black pixels for one page of the image data of both sides of the document read by the double-side reading unit 3 and the count value is a predetermined number of black pixels. If the number is smaller, it is determined that the reading surface is blank. Then, according to the determination result of the blank sheet determination unit 14, whether to perform double-sided reading or single-sided reading is set. By providing the blank sheet determination unit 14 in this manner, the setting of double-sided reading can be automatically performed without the intervention of an operator.

[0085]

As described in detail above, according to the present invention, it is confirmed that the receiving side has a double-sided function, and the page information is transmitted to the receiving side. There is an effect that a print output similar to that of a document can be obtained on the receiving side without changing the communication means 30.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a facsimile apparatus according to a first embodiment.

FIG. 2 is an explanatory diagram showing an operation interface unit.

FIG. 3 is a sequence diagram illustrating a communication procedure according to the first embodiment.

FIG. 4 is a flowchart illustrating a communication operation on a transmission side.

FIG. 5 is an explanatory diagram showing a configuration of an NSF signal.

FIG. 6 is an explanatory diagram showing a configuration of an NSS signal.

FIG. 7 is a sequence diagram illustrating a communication procedure according to the second embodiment.

FIG. 8 is an explanatory diagram showing a configuration of an MPS signal.

FIG. 9 is a block diagram illustrating a facsimile apparatus according to a third embodiment.

FIG. 10 is a sequence diagram illustrating a communication procedure according to the third embodiment.

FIG. 11 is an explanatory diagram illustrating a frame configuration according to a third embodiment;

FIG. 12 is a block diagram illustrating a facsimile apparatus according to a fourth embodiment.

FIG. 13 is a sequence diagram illustrating a communication procedure according to the fourth embodiment.

FIG. 14 is a flowchart illustrating an operation on the transmission side according to the fourth embodiment.

FIG. 15 is a flowchart illustrating an operation on the receiving side according to the fourth embodiment.

FIG. 16 is an explanatory diagram showing a configuration of an NSS signal.

FIG. 17 is a sequence diagram illustrating a communication procedure according to the fifth embodiment.

FIG. 18 is a flowchart illustrating an operation on the transmission side according to the fifth embodiment.

FIG. 19 is a flowchart showing an operation on the receiving side according to the fifth embodiment.

FIG. 20 is an explanatory diagram showing a configuration of an NSS signal.

FIG. 21 is an explanatory diagram showing a configuration of PIX.

FIG. 22 is a block diagram illustrating a facsimile apparatus according to a sixth embodiment.

[Explanation of symbols]

 2 Operation interface unit 3 Double-sided reading unit 6 Double-sided printing unit 12 Storage memory 13 Operation unit 14 Blank sheet determination unit

Claims (6)

[Claims] In a facsimile apparatus having a reading unit capable of reading both sides of a document and a printing unit capable of performing double-side printing, information on whether a document to be transmitted is single-sided printing or double-sided printing is registered for each page. A registration unit, a function of inserting the information registered by the registration unit into a predetermined signal and transmitting the information, and a method of printing received data on one side or both sides based on the information inserted and transmitted in the predetermined signal. A facsimile machine having a printing function. 2. The facsimile apparatus according to claim 1, wherein the information indicating whether the printing is single-sided printing or double-sided printing is inserted into the predetermined signal for all pages. 3. The facsimile apparatus according to claim 1, wherein the information indicating whether the printing is single-sided printing or double-sided printing is transmitted at the same time when the image data of each page is transmitted. 4. The facsimile apparatus according to claim 1, wherein the image data of the front and back sides of the page to be printed on both sides is transmitted collectively based on the information registered by the registration unit. 5. The facsimile apparatus according to claim 1, wherein said registration means includes means for automatically determining whether the original is double-sided or single-sided. 6. A facsimile apparatus having a reading unit capable of reading both sides of a document and a printing unit capable of performing double-sided printing, an instruction unit for instructing double-sided scanning or single-sided scanning, A facsimile apparatus having a function of inserting image data on the front side or image data on the back side into a predetermined signal and transmitting the image data to the receiving side every time image data is transmitted.