JPH09252386A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a facsimile equipment in which mixed originals consisting of one-side and double-side originals are in existence by discriminating properly the presence of image recording on an original and sending the recording face information denoting a recording face and discriminating the recording face of the received original from the recording face information. SOLUTION: A front side scanner 2 and a rear side scanner 3 read both sides of a transmission original in the case of transmission, a coding decoding section 14 encodes the read image and stores the image to an image memory 4, after an isolated point is eliminated by an isolation point elimination section 7 as required, an original side discrimination section 11 discriminates whether or not the read side is a recording side of an image and stores the discrimination result to a system memory 10. A system control section 8 eliminates image information of a rear side discriminated by the original side discrimination section 11 not to be the recording side from the image memory 4 and sends the remaining image to a destination while adding recording side information denoting the recording side of the transmission original to the information by a (non-standard function setting) NSS signal. In the case of reception, the system control section 8 decodes the NSS signal and controls the inversion of a recording paper turnover device 6 based on the recording side information to allow a plotter 5 to record a transmission original.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus, and more particularly, to a facsimile apparatus which appropriately determines and transmits image information of a double-sided original document and, when the image information of the double-sided original document is received, appropriately performs double-sided recording. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, in a facsimile apparatus, since image information that can be read by a scanner at one time is only on one side of a document, when reading a two-sided document recorded on both the front and back sides, the front side and the back side are read. Since each of the documents is read and transmitted once, there is a problem that the usability of the facsimile apparatus is poor when transmitting a double-sided document.

Therefore, the applicant of the present invention has previously proposed a facsimile apparatus that simultaneously reads images of a double-sided original and transmits them in a preset order (Japanese Patent Laid-Open No. 3-24208).
(See Japanese Patent Publication No. 3). In this facsimile apparatus, an image reading sensor reads image information of a document, stores the image information in an image memory, and then transmits the image information.
A back side reading sensor for reading the back side of the original, and a selection means for selecting whether to read only one side or both sides of the original are provided, and based on the selection of the selection means, one side or both sides of the original are simultaneously read. It is characterized by performing and transmitting.

Therefore, according to this facsimile apparatus, it is possible to simultaneously read both-sided originals and send them in a predetermined order.

[0005]

However, in the facsimile apparatus proposed in Japanese Unexamined Patent Publication No. 3-242083, the image information of the two-sided original is read at the same time, and one side of each side is transmitted in a predetermined order. Therefore, when sending only double-sided originals, the receiving side can restore the received originals as the originals if the receiving side knows the transmission order. If a single-sided original and a double-sided original are mixed,
The operator on the receiving side does not know which image information of the original is the image information of the double-sided original, and even if he / she wants to reproduce it as it is for the transmitted original, he / she cannot reproduce it without asking the operator on the transmitting side by telephone etc. However, there was room for improvement.

In particular, recently, a facsimile apparatus having a recording unit having a function of recording image information on both sides of a recording sheet has appeared, and an image in which a single-sided original and a double-sided original are mixed in such a facsimile apparatus. When transmitting information, the facsimile apparatus described in the above publication simply transmits the image information of the two-sided original in a predetermined order. Therefore, the receiving side facsimile apparatus records the received image information. I do not know what to output, and it is not possible to reproduce and print the document exactly as it was sent.

Therefore, the receiving-side operator makes an inquiry to the transmitting-side operator to make a copy again,
It is necessary to reproduce the received document exactly as the transmitted document, and there is still room for improvement in improving the usability of the facsimile device.

Therefore, according to the first aspect of the invention, the images on both sides of the original are read at once, and whether the read original is a double-sided original or not is determined by the number of black and white change points of the read image information. By determining which is the front side or the back side and notifying the receiving side of the recording side information indicating the recording side of the transmitted document, the receiving side receives the received image information as the recording side image information of the received document. It is an object of the present invention to provide a facsimile apparatus with good usability by making it possible to know if there is any.

According to a second aspect of the present invention, the images on both sides of the original are read at one time, the isolated points are removed from the read image information, and the read original is read according to the number of black and white change points of the image information from which the isolated points are removed. If it is a two-sided original, it is more appropriately judged whether the recording surface is the front side or the back side, and the recording side information indicating the recording side of the transmission original is notified to the receiving side, It is possible to more appropriately transmit the image information by making it possible for the side to know which recording surface of the received document the received image information is, and to provide a facsimile apparatus with better usability. Is intended.

According to the third aspect of the present invention, the information indicating which sheet of the transmission original is the double-sided original is notified as the recording surface information, so that the facsimile apparatus on the receiving side can easily transmit the image information of the single-sided recording and the double-sided recording. It is an object of the present invention to provide an inexpensive facsimile machine which can discriminate recorded image information, is inexpensive, and has good usability.

According to a fourth aspect of the present invention, by transmitting the recording surface information by the communication protocol, the recording surface information can be appropriately transmitted / received, and the receiving side image information is the image information of which recording surface of the received document. Therefore, it is an object of the present invention to provide a facsimile apparatus which can be properly processed by the receiving side facsimile apparatus and which is more useful.

According to a fifth aspect of the invention, the transmitted recording surface information is decoded to determine which recording surface of the received document the received image information is, and the recording sheet is printed according to the recording surface. By recording and outputting image information on one side or both sides of
It is an object of the present invention to provide a facsimile machine which can restore and record a received document like a transmitted document and has good usability.

[0013]

According to a first aspect of the present invention, there is provided a facsimile apparatus which includes a front surface reading means for reading an image on the front surface of a document, a back surface reading means for reading an image on the back surface of the document, the front surface reading means and the front surface reading means. Judgment means for individually detecting the black and white change points of the image information read by the back side reading means, and judging whether or not the reading surface is an image recording surface based on the number of the change points, and the judgment means. The above-mentioned object is achieved by providing a notification means for notifying the receiving side of the recording surface information indicating the image recording surface of the transmission document based on the result.

Here, the judging means sequentially detects the black and white change points of the image information read by the front side reading means and the back side reading means, and determines how many black and white change points (the number of change points) are on one page. It is determined whether or not the reading surface of the image information is a surface on which an image is recorded (image recording surface) depending on whether there is the image information. Therefore, an image is properly recorded even if a single-sided original and a double-sided original are mixed, and further, even if an original recorded only on the front surface, an original recorded only on the back surface, and a double-sided original are mixed. Faces can be identified.

The notifying means notifies the receiving side facsimile device of the recording surface of the transmission document by the predetermined recording surface information when transmitting the image information of the transmission document.

According to the above arrangement, images on both sides of the original are read at once, and whether the read original is a double-sided original or the recording surface is the front surface or the back surface depending on the number of black and white change points of the read image information. The receiving side informs the receiving side of the recording surface information indicating the recording surface of the transmission document, so that the reception side image information of the recording surface of the reception document is the reception side image information on the receiving side. It is possible to recognize whether there is any, and it is possible to improve the usability of the facsimile device.

In this case, for example, as described in claim 2, the front surface reading means for reading the image on the front surface of the original, the back surface reading means for reading the image on the back surface of the original, the front surface reading means and the back surface reading means. Isolated point removing means for removing an isolated point from the read image information, and a black-and-white changing point of the image information from which the isolated point is removed by the isolated point removing means are detected, and the reading surface is determined by the number of the changing points. And a notifying means for notifying the receiving side of the recording surface information indicating the image recording surface of the transmission document based on the judgment result of the judging means. Thus, the above-mentioned object is achieved.

Here, the isolated point removing means removes an isolated point which is a black pixel due to noise or the like, but an isolated point removing method used in ordinary image processing can be used. The removing method is not limited at all.

According to the above arrangement, images on both sides of the original are read at one time, isolated points are removed from the read image information,
By the number of black and white change points of the image information with the isolated points removed,
More appropriately judge whether the read original is a double-sided original and whether the recording surface is the front surface or the back surface, judge whether or not, and receive the recording surface information indicating the recording surface of the transmission original. Since it is notified to the side, the recording surface can be appropriately and accurately determined, and the receiving side can recognize which recording surface of the received document the received image information is,
In addition to being able to send more appropriate image information,
The usability of the facsimile machine can be further improved.

Further, for example, as described in claim 3, the notifying means may notify, as the recording surface information, information indicating which sheet of the transmission original is a double-sided original. Good.

According to the above configuration, since information indicating which sheet of the transmission original is the double-sided original is notified as the recording surface information, the receiving-side facsimile machine displays the single-sided recording image information and the double-sided recording image information. It can be easily discriminated, and the facsimile apparatus can be inexpensive and have good usability.

Further, for example, as described in claim 4, the notifying means may add the recording surface information to a communication protocol and transmit the information.

Here, as the communication protocol, for example,
An NSS signal (non-standard function setting signal) or the like can be used.

According to the above configuration, since the recording surface information is transmitted by the communication protocol, the recording surface information can be appropriately transmitted / received, and the receiving image information on the receiving side is the recording surface image information of the received document. Can be recognized, and the facsimile machine on the receiving side can appropriately process according to the configuration of the recording surface of the transmission original. As a result, the usability of the facsimile apparatus can be further improved.

According to a fifth aspect of the present invention, in a facsimile apparatus, when receiving, a decoding means for decoding recording surface information indicating an image recording surface of a received document notified from the transmitting side, and image information of the received document are recorded on a recording paper. A recording means having a double-sided recording function for recording and outputting on both sides of the recording medium, and recording control for causing the recording means to record and output the image information of the received document on one side or both sides of the recording paper according to the decoding result of the decoding means. Means and
With the provision of the above, the above object is achieved.

Here, the recording means records the image information on both sides of the recording paper at the same time, or reverses the recording paper after recording the image information on one side and records the image information on the other side so that both sides of the recording paper are recorded. It has a function of recording image information, and the recording control means controls whether single-sided recording or double-sided recording is performed.

According to the above configuration, the transmitted recording surface information is decoded to determine which recording surface of the received document the received image information is, and one side of the recording paper is selected according to the recording surface. Alternatively, image information can be recorded and output on both sides, and the received document can be restored and recorded in the same manner as the transmitted document. As a result, the usability of the facsimile machine can be improved.

[0028]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred embodiments of the present invention, and therefore, various technically preferable limitations are added. However, the scope of the present invention is not limited to the following description. The embodiments are not limited to these embodiments unless otherwise specified.

1 to 5 are views showing a facsimile machine to which an embodiment of the facsimile machine of the present invention is applied, and FIG. 1 is a facsimile machine to which the embodiment of the facsimile machine of the present invention is applied. 2 is a circuit block diagram of FIG.

In FIG. 1, the facsimile apparatus 1 includes a front surface scanner 2, a rear surface scanner 3, an image memory 4, a plotter 5, a recording paper reversing device 6, an isolated point removing unit 7, a system control unit 8, and an operation display unit 9. , A system memory 10, a document surface determination unit 11, a modem 12, an NCU 13, an encoding / decoding unit 14 and the like, and the above units are connected by a bus 15.

Front scanner 2 and back scanner 3
For example, as shown in FIG. 2, is disposed at a predetermined distance on the conveyance path of the document 16 so that they do not interfere with each other, and at a position facing the front surface scanner 2 and the back surface scanner 3,
Rollers 17 and 18 that convey the original 16 while pressing it against the front-side scanner 2 and the back-side scanner 3 are provided. The front surface scanner (front surface reading means) 2 is, for example, C
An image scanner using a CD (Charge Coupled Device) is used, and a document 1 conveyed on a conveyance path is used.
The surface of document 6 is scanned, the image on the surface of document 16 is read, and is output as image information to encoding / decoding unit 14 and document surface determination unit 11. Back side scanner (back side reading means) 13
Similar to the front surface reading sensor 12, for example, an image scanner using a CCD is used, and the back surface of the document 16 conveyed on the conveyance path is scanned to read the image on the back surface of the document 16 to read image information. Encoding / decoding unit 14 as
And output to the document surface determination unit 11.

The image memory 4 is composed of, for example, a readable / writable memory such as a RAM or a hard disk, and is mainly used in the raw state of image information for transmission and received image information.
It is also stored in a compressed state.

The plotter 5 is, for example, an electrophotographic recording device or a thermal recording device using a thermal element, and records and outputs the received image information and report on recording paper.

The recording paper reversing device 6 operates under the control of the system control unit 8, and during double-sided recording, the recording paper recorded on one side by the plotter 5 is reversed and conveyed to the plotter 5 again. The plotter 5 and the recording paper reversing device 6 as a whole function as a recording unit having a double-sided recording function for recording and outputting on both sides of the recording paper.

The isolated point removing unit (isolated point removing means) 7 determines the isolated point of the pixel of interest based on the image information transferred from the image memory 4 by several lines, removes the isolated point, and isolates it. The image information from which the dots have been removed is output to the document surface determination unit 11 and the image memory 4. For example, as shown in FIG. 3, when the image information for 5 lines is transferred, the isolated point removing unit 7 refers to 5 bits at a time in the horizontal direction (5 × 5 = 25 bits in total), When the center pixel is the target pixel and a black bit comes to the target pixel, it is checked whether the remaining 24 bits are all white, and if the remaining 24 bits are all white, the target pixel is determined to be an isolated point. Then, the isolated points are removed by replacing with white.

The system memory 10 is a ROM (Read Onl
y Memory), RAM (Random Access Memory), etc., and stores the system program of the facsimile apparatus 1, and also includes a recording surface determination / notification processing program, a recording surface decoding / recording processing program, and the above-mentioned programs. Various data and system data necessary for execution are stored. In particular, system memory 1
In the RAM 0, a transmission document information storage area for storing information on the number of transmission documents 16 determined by the recording surface determination / notification process and information on whether or not an image is recorded for each document 16 is formed. This transmission document information storage area is, for example, as shown in FIG.
As shown in, the bit 0 to bit 7 of the first byte are assigned to the number information area of the transmission original, and the subsequent bits indicate the presence or absence of the image on the front and back sides of each original.
It is assigned to the image recording presence / absence information area displayed by "1" and "0". Then, the system control unit 8, which will be described later, increments the number-of-sheets information by “1” every time one original 16 is read, and when the original surface determination unit 11 determines that the front surface of the first original read is the original surface. , "1" is set in the first bit of the image recording presence / absence information area, and if it is determined that the document surface is not present, "0" is set. That is, the system control unit 8 sequentially sets “1” on the document surface and “0” on the non-document surface in order of the front and back sides of the document 16.
It is to be noted that, now, 8 bits are allocated to the number information area, the number information of 255 sheets can be set, and sufficient number information can be stored in a normal use condition. Further, since the image recording / non-recording information area requires bits for each of the front side and the back side of the original document 16, the number of bits is set to be twice the number of the transmission original documents 16. Further, this counting process of the number of transmitted sheets may be performed by a hardware counter or may be managed by software.

A system control section (decoding means, recording control means) 8 controls each section of the facsimile apparatus 1 based on a program in the system memory 10 to execute basic processing as a facsimile apparatus and determine recording surface. -Perform notification processing and recording surface decoding / recording processing.

The operation display section 9 is provided with various operation keys such as a numeric keypad, a start key, a stop key, and a function key, and a display (for example, a liquid crystal display), and various commands such as a transmission operation are provided by each operation key. Is input, and the contents of the command input from the operation keys and various information notified from the facsimile apparatus 1 to the operator are displayed on the display.

The document surface determination section (determination means) 11 operates under the control of the system control section 8 and receives image information input from the front side scanner 2 and the back side scanner 3 or the isolated point removal section 7. The number of change points (the number of change points) is detected by detecting the change points in black and white of the input image information from which isolated points have been removed.
It is determined whether the image recording surface is an image recording surface, and the determination result is output to the system control unit 8. That is, the document surface determination unit 11 detects a black-and-white change point indicating whether the input image information has a white-and-black change point, and the black-and-white change point is 1
It is determined whether the surface of the image information is the image recording surface or the non-permission recording surface, depending on whether the number of pages of the image information is greater than a preset number (for example, 100 times in one page). The number of black and white change points may be appropriately set by operating the keys of the operation display unit 9. The system control unit 8 performs the setting process of the bit in the image recording presence / absence information area of the transmission document information storage area of the system memory 10 based on the determination result of the document surface determination unit 11.

The modem 12 modulates the transmission signal into a form suitable for transmission on the line at the time of transmission, and demodulates the modulation signal sent from the line at the time of reception. Also, the modem 12
It has a built-in communication control unit, exchanges facsimile control signals with a partner facsimile machine, and executes a facsimile communication procedure.

A line L, for example, a telephone line is connected to the NCU (network control unit) 13, and the NCU 13 automatically receives a call from the line and performs automatic call processing to the line. To do. Then, as will be described later, the system control unit 8 reads the image recording presence / absence information for each page of the transmission original 16 and each page of the transmission original 16 of the system memory 10 from the transmission original information storage area and outputs the NSS signal (nonstandard). It is added to the function setting signal) and transmitted via the modem 12 and the NCU 13. Therefore, the system controller 8 and the modem 12
The NCU 13 and the NCU 13 function as a whole as notifying means for notifying the receiving side of the recording surface information indicating the recording surface of the transmission document.

The encoding / decoding unit 14 is intended to shorten the transmission time of image information, improve efficiency, and increase the efficiency of storage in the image information memory 4, and encode image information according to a predetermined encoding method. In addition, the encoded image information is decoded.

Next, the operation of the present embodiment will be described. The facsimile apparatus 1 according to the present embodiment, when transmitting the original document 16
Whether the image is recorded on the front or back of each page of
Also, it is determined whether or not it is recorded on both sides, the determination result is notified to the receiving side as recording surface information, and when receiving, single-sided recording and double-sided recording are performed based on the recording surface information notified from the transmitting side. It has its characteristics.

Below, the recording surface determination of the facsimile device 1
The notification process and the recording surface decoding / recording process will be described.

First, the recording surface determination / notification processing when the recording surface is determined without removing isolated points will be described below with reference to the flowchart of FIG.

When transmitting an original 16 in which a double-sided original and a single-sided original are mixed, the operator of the facsimile apparatus 1 sets the original 16 on an original plate (not shown), inputs the transmission destination, and then presses the start key.

In the facsimile apparatus 1, the system control unit 8 checks whether or not a document is set (step S1), the document 16 is set, the destination is input, and the start key of the operation display unit 9 is turned on. Then, the originals 16 are conveyed one by one on the conveying path. The system control unit 8 causes the front-side scanner 2 and the back-side scanner 3 to read the images on both sides of the document 16 conveyed on this conveyance path, and the front-side image information read by the front-side scanner 2 and the back-side scanner 3 is included in the image information. The image information on the back side is sequentially transferred to the encoding / decoding section 14 and the document side determination section 11, and
The number information in the number information area of the transmission document information storage area of the system memory 10 is incremented by "1". The encoding / decoding unit 14 encodes the transferred image information, and the system control unit 8 transfers the encoded image information of the encoding / decoding unit 14 to the image memory 4 and the image memory 4
To accumulate. Further, the system control unit 8 causes the document surface determination unit 11 to detect a black-and-white change point of the transferred image information as described above, and the document surface of the image information is detected based on the number of change points in one page. Is determined to be the image recording surface (step S2).

When the document surface determination unit 11 determines the image recording surface, the system control unit 8 checks whether the determination result is the document surface, that is, the image recording surface (step S3). If it is a surface, the bit corresponding to the document surface of the image recording presence / absence information area of the transmission document information storage area of the system memory 10 is set, and the process returns to step S1. Then, in step S3, when it is not the document surface, the image information in the image memory 4 is deleted (discarded), and the process returns to step S1 (step S4). That is, assuming that an image is recorded only on the front surface of the first original document 16, as shown in FIG. 4, "1" is set in the first bit of the image recording presence / absence information area of the transmission original information storage area. Is set, and "0" is set in the second bit.

The system controller 8 returns to step S1 and checks again whether the original 16 is set (step S1). If the original 16 is set, the same processing as above is performed and the original 16 is set. The same processing as above is performed for all the originals 16 that are present. Now, the transmission manuscript 16 is 5
Image recording surface (original surface) from the first sheet to the front, both sides,
As for the front, back, and both sides, as shown in FIG. 4, “00000101” is set as the number information in the number information area of the transmission document information storage area of the system memory 10, and the image recording presence / absence information area is set. “1011100111” is set as the image recording presence / absence information.

Then, the system control section 8 carries out the above-mentioned processing for all the set originals 16, and when the set originals are exhausted in step S1, the other party is called and an image is formed by a normal facsimile control procedure. The image information in the memory 4 is transmitted, but at this time, the system memory 10
The number information and the image recording presence / absence information are read from the transmission document information storage area, and the number information and the image recording presence / absence information are made into a continuous bit string and added to the NSS signal (non-standard function setting signal) as recording surface information. , To the other party (step S5). Therefore, the destination facsimile machine can know the number of transmitted originals 16 and which page is the front side, the back side, and the both sides by decoding the NSS signal. At this time, the facsimile device 1 transmits the image information in the image memory 4 one by one, in the order of front side and back side, as in normal facsimile communication. The image information determined not to be the surface is deleted from the image memory 4, and only the image information remaining in the image memory 4 without being deleted is transmitted from the first page in the order of front and back.

Therefore, according to the facsimile apparatus 1, the images on both sides of the original 16 are read at once, and the read original 16 is read according to the number of black and white change points of the read image information.
Is a double-sided original, and whether the reading surface is the recording surface (original surface), for example, recording surface information indicating which sheet of the transmission original 16 is the double-sided original 16 Can be notified to the receiving side, and even when the single-sided original 16 is mixed with the double-sided original 16, whether or not the single-sided original 16 is the double-sided original 16 You can let them know if there is one. As a result, the usability of the facsimile machine 1 can be improved.

Next, the case where the original surface is determined after the isolated points are removed will be described. The processing in this case is
The same process as that shown in FIG. 5 is performed, but in step S2, isolated point removal surrounded by a broken line is performed.

That is, the system control unit 8 controls the original 16 read by the front scanner 2 and the back scanner 3.
Image information is stored in the image memory 4, and the image information is transferred to the isolated point removing unit 7 by several lines, and the isolated point removing unit 7 removes the isolated points as described above. The system control unit 8 transfers the image information from which the isolated points are removed by the isolated point removal unit 7 to the encoding / decoding unit 14, stores the encoded image information in the image memory 4, and The data is transferred to the determination unit 11, the document surface determination unit 11 is made to determine whether it is the image recording surface in the same manner as described above, and the image information of the reading surface of the document which is determined not to be the document surface is deleted from the image memory 4. Similarly to the above, the system control unit 8 stores the determination result of the document surface determination unit 11 together with the number of documents in the transmission document information storage area of the system memory 10 in sequence, and when the above processing is completed for all the documents 16, the same as above. Then, the recording surface information is added to the NSS signal and transmitted, and thereafter, the image information remaining in the image memory 4 without being deleted is transmitted.

Therefore, the isolated points are removed from the image information of the original document 16, and it is determined whether the read original document 16 is a double-sided original document based on the number of black and white change points of the image information from which the isolated point is removed. It is possible to notify the receiving side of the recording surface information indicating the 16 recording surfaces, it is possible to more accurately determine whether the document is a double-sided original, and it is possible to transmit accurate recording surface information. As a result, it is possible to prevent the document from being judged to be the document surface and transmitted even though it is not actually the document surface (image recording surface), and the transmission time can be shortened and the communication cost can be reduced. At the same time, the receiving side can properly handle the received document. Therefore, the usability of the facsimile device 1 can be further improved.

Next, the recording surface decoding / recording process upon reception will be described below with reference to the flowchart shown in FIG.

System control unit 8 of the facsimile machine 1
When receiving, the normal facsimile communication control procedure
When the receiving process is started and the NSS signal is received, it is checked whether the NSS signal has recording surface information (step P).
1).

In step P1, if the NSS signal has recording surface information, the system control unit 8 acquires the recording surface information from the NSS signal, decodes the recording surface information, and stores the decoded recording in the system memory 10. Memorize surface information. The system control unit 8 receives the image information transmitted thereafter, and temporarily stores it in the image memory 4. Since the image information is transmitted on each side as described above, the image information on each side is sequentially stored in the image memory.

When the reception of the image information of all the originals 16 is completed or a predetermined amount of image information is received, the system control unit 8
Reads the received image information from the image memory 4, decodes it by the encoding / decoding unit 14, transfers it to the plotter 5, and prints it on a recording sheet based on the recording surface information stored in the system memory 10. It is recorded (step P2).

That is, when the image information to be recorded is the image information only on the front side, the system control section 8 causes the plotter 5 to record the image information, ejects the recording sheet on which the image information is recorded, and records it. If the target image information is only the back side image information,
Without recording with the plotter 5, the recording paper reversing device 6 conveys the recording paper to the plotter 5 again, and the plotter 5 records image information on the back surface of the reversed recording paper.
If the image information to be recorded is surface image information of a double-sided original, the plotter 5 first causes the image information to be recorded on the surface of the recording paper, and the recording paper on which the image information has been recorded is transferred to the recording paper reversing device. After being reversed by 6, the sheet is conveyed again to the plotter 5, and the image information of the back side of the double-sided original, which is the image information of the next recording target, is recorded on the back side of the recording sheet already recorded on the front side by the plotter 5. And eject the paper.

When there is no recording surface information in the NSS signal in step P1, the system control unit 8 records the image information in the image memory 4 only on the front surface of the recording paper by a normal recording process, and ejects the paper. (Step P3).

Therefore, at the time of reception, the transmitted recording surface information can be decoded, and the image information can be recorded and output on the recording paper according to the decoding result, and when the single-sided original and the double-sided original are mixed. Also, the received document can be restored and recorded in the same manner as the transmitted document. As a result, the usability of the facsimile machine 1 can be improved.

Although the invention made by the inventor has been specifically described based on the preferred embodiments, the invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the invention. It goes without saying that it is possible.

For example, in the above-described embodiment, the recording surface information is composed of 8-bit number information and image recording presence / absence information of a bit which is twice the number of transmission originals. Needless to say, is not limited to the above.

Also, the recording surface information is added to the NSS signal and transmitted to notify the receiving side, and the receiving side analyzes the NSS signal to decode the recording surface information. The method of notifying the surface information is not limited to the NSS signal. Any method may be used as long as it can appropriately notify the recording surface information to the receiving side.

[0065]

According to the facsimile apparatus of the present invention, whether the read original is a double-sided original or not depending on the number of black and white change points of the read image information at the same time when the images on both sides of the original are read. , The recording surface information indicating the recording surface of the transmission original is notified to the receiving side by judging whether the recording surface is the front surface or the back surface, and the receiving side receives the received image information. It is possible to recognize which recording surface of the document is the image information, and it is possible to improve the usability of the facsimile apparatus.

According to the facsimile apparatus of the second aspect of the present invention, the images on both sides of the original are read at a time, the isolated points are removed from the read image information, and the number of black-and-white change points of the image information from which the isolated points are removed is changed. More appropriately determines whether the read original is a double-sided original and whether the recording surface is the front surface or the back surface, and determines whether or not the recording surface information indicates the recording surface of the transmission original. Is notified to the receiving side, the recording surface can be judged appropriately and accurately, and
The receiving side can recognize which recording surface of the received document the received image information is, so that more appropriate image information can be transmitted and the usability of the facsimile device is further improved. be able to.

According to the facsimile apparatus of the third aspect of the present invention, as the recording surface information, the information indicating which sheet of the transmission original is the double-sided original is notified. Thus, the image information of double-sided recording can be easily discriminated, and the facsimile apparatus can be inexpensive and have good usability.

According to the fourth aspect of the present invention, since the recording surface information is transmitted by the communication protocol, the recording surface information can be appropriately transmitted and received, and the receiving side can record the received image information of the received document. It is possible to recognize whether the image information is the image information on the surface, and the receiving side facsimile apparatus can appropriately process the information according to the configuration of the recording surface of the transmission document. As a result, the usability of the facsimile apparatus can be further improved.

According to the facsimile apparatus of the present invention, the transmitted recording surface information is decoded to determine which recording surface of the received document the received image information is, and the recording surface information is determined. According to the above, the image information can be recorded and output on one side or both sides of the recording paper, and the received document can be restored and recorded like the transmitted document. As a result, the usability of the facsimile machine can be improved.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of a facsimile apparatus to which an embodiment of the facsimile apparatus of the present invention is applied.

FIG. 2 is a schematic configuration diagram of a front side scanner and a back side scanner of FIG.

3 is an explanatory diagram for explaining an example of an isolated point removal method by an isolated point removal unit in FIG.

4 is a diagram showing an example of number information and image recording presence / absence information stored in the system memory of FIG.

5 is a flowchart showing recording surface determination / notification processing by the facsimile apparatus of FIG.

6 is a flowchart showing recording surface decoding / recording processing by the facsimile apparatus of FIG.

[Explanation of symbols]

 1 Facsimile device 2 Front scanner 3 Back scanner 4 Image memory 5 Plotter 6 Recording paper reversing device 7 Isolated point removal unit 8 System control unit 9 Operation display unit 10 System memory 11 Original surface determination unit 12 Modem 13 NCU 14 Encoding / Decryption unit 15 Bus 16 Manuscript 17, 18 Roller

Claims (5)

[Claims] 1. A front surface reading unit for reading an image on the front surface of a document, a back surface reading unit for reading an image on the back surface of a document, and a black-and-white change point of the image information read by the front surface reading unit and the back surface reading unit. Judgment means for individually detecting each and judging whether or not the reading surface is an image recording surface based on the number of change points, and a recording surface showing an image recording surface of a transmission document based on the judgment result of the judging means. A facsimile apparatus comprising: a notification unit for notifying information to a receiving side. 2. A front surface reading means for reading an image on the front surface of a document, a back surface reading means for reading an image on the back surface of a document, and an isolated point is removed from the image information read by the front surface reading means and the back surface reading means. An isolated point removing means and a black-and-white changing point of the image information from which the isolated point is removed by the isolated point removing means are detected, and it is determined whether the reading surface is an image recording surface based on the number of the changing points. A facsimile apparatus comprising: a determining unit; and a notifying unit for notifying a receiving side of recording surface information indicating an image recording surface of a transmission document based on a determination result of the determining unit. 3. The notifying means, as the recording surface information,
The facsimile apparatus according to claim 1 or 2, wherein the facsimile apparatus sends information indicating which sheet of the transmitted original is a double-sided original. 4. The notifying means adds the recording surface information to a communication protocol and transmits the communication protocol.
4. The facsimile apparatus according to claim 3. 5. A decoding means for decoding the recording surface information indicating the image recording surface of the received document notified from the transmitting side at the time of reception, and a double-sided recording function for recording and outputting the image information of the received document on both sides of the recording paper. And recording control means for causing the recording means to record and output the image information of the received document on one side or both sides of the recording paper according to the decoding result of the decoding means. And a facsimile machine.