JP2003158622A - Communications apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communications apparatus that can be manufactured at a low cost and transmit an original to a receiver side facsimile machine independently of its model. SOLUTION: When a facsimile machine being the communications apparatus of this invention allows a CPU to execute transmission control processing according to an original transmission command from a user, the facsimile machine discriminates whether or not an A4 size paper width transmission mode is set, an when the facsimile machine discriminates that the A4 width transmission mode is selected, the facsimile machine executes original receiving and carrying processing after receiving a digital identification signal (DIS) (3230). Thus, the CPU controls an original carrying mechanism drive section to receive a transmission original into the machine and to carry the original in the machine. Thus, the facsimile machine transmits a digital command signal (DCS) denoting the transmission of the original of a size A4 immediately (within 3 seconds after the reception of the DIS) without awaiting a detection signal from the original width sensor in parallel with the original receiving and carrying processing to inform of it that the paper size (original width) is the size A4 independently of the actual paper size of the transmission original.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention takes in a transmission manuscript into a device after establishing a connection with an external device by a communication means, and detects the form of the transmission manuscript by a detection means installed in the device. The present invention relates to a communication device that appropriately processes data representing the content of a document read by a reading unit to generate a data signal for transmitting to an external device and transmits the data signal to the external device via the communication unit.

[0002]

2. Description of the Related Art Conventionally, a facsimile device is known as a communication device for reading a transmission original with a reading device such as a scanner and transmitting image data as a reading result to an external device through a communication line network such as a public telephone line network. Has been.
Further, as a facsimile device, a device having a built-in detection sensor for detecting the form of a transmission original such as a paper size is well known.

In this type of facsimile apparatus, a reading apparatus reads from a reading apparatus based on receiving capability information such as a paper size that can be printed by a facsimile apparatus as an original transmission destination and information such as a sheet size of a transmission original detected by a detection sensor. The acquired image data is appropriately processed (enlarged / reduced, etc.) to generate a transmission data signal (facsimile message) suitable for the facsimile device of the document transmission destination, and the data signal is transmitted to the facsimile device of the transmission destination. It is configured. Therefore, according to this type of facsimile apparatus, the facsimile apparatus on the receiving side can appropriately reproduce the original content of the transmission original based on the data signal and print it.

For example, the facsimile machine calls the facsimile machine of the document transmission destination through the communication line network, and then communicates with the external facsimile machine by the communication procedure as shown in FIG. And a detection result obtained by (1) to generate a data signal (facsimile message) for transmission suitable for the facsimile device of the document transmission destination, and transmits the data signal to the facsimile device of the document transmission destination.

Hereinafter, the facsimile apparatus on the original transmission side will
Original transmission side after establishment of connection when the original transmission destination (original reception side) is a calling side terminal that calls a facsimile apparatus, and the original reception side facsimile apparatus is a called side terminal called from the calling side terminal The communication procedure between the facsimile machine of 1) and the facsimile machine on the document receiving side will be described with reference to the sequence flow shown in FIG.

The facsimile apparatus on the original transmission side is ITU
-Fax tone (CN
(G) is transmitted, and fax tone is exchanged with the facsimile device on the document receiving side (CED is received) to call the facsimile device on the document receiving side to establish a connection with the facsimile device on the document receiving side ( That is,
When the process of phase A is completed), first, the function identification of the facsimile device on the document receiving side included in the facsimile information field (FIF) of the digital identification signal (DIS) transmitted from the facsimile device on the document receiving side. Get information. The function identification information is information indicating the function (reception capability) of the document receiving side facsimile apparatus, and includes, for example, information on communication capability (data signal speed, etc.), printing capability (resolution, presence of color printing function, etc.). Information, outputable paper size (maximum paper width, maximum paper length), and the like.

On the other hand, the facsimile apparatus on the original transmission side draws the transmission original into the apparatus in parallel with the communication operation after receiving the digital identification signal (DIS), and the form of the transmission original is set in the apparatus. It is detected by the detection sensor. Then, the transmission condition is determined based on the detection result and the function identification information, and as a response signal to the digital identification signal (DIS), a digital command signal (DCS) including information regarding the transmission condition.
Is generated and this signal is transmitted to the facsimile apparatus on the document receiving side.

The digital command signal (DCS) includes
The transmission condition includes information about the form of the transmission document, and for example, when the detection sensor is configured to be able to detect the paper size of the transmission document captured in the device as the form of the transmission document, the facsimile device The paper size of the original to be output to the original reception side is determined based on the paper size of the transmission original detected by the detection sensor and information about the paper size of the original that can be output by the original reception side, and a digital command signal ( DCS) is generated and transmitted. After this, the digital command signal (DC
The image data acquired from the reading device is appropriately processed to generate a data signal so as to match the sheet size of the document notified by S).

For example, if the facsimile device on the document receiving side is a model capable of printing a document in A4 size and B4 size, and the paper size of the document to be transmitted by the facsimile device on the document transmitting side is A4 size, The facsimile apparatus on the original transmission side is provided with a digital command signal (DC
In S), it is notified that the paper size of the transmitted document is A4 size. Then, based on the image data of the transmission original read by the reading device, a data signal for A4 size is generated. Further, the facsimile apparatus on the document receiving side is A4 size.
When the original size of the original to be transmitted by the facsimile apparatus on the original transmission side is B4 size and the original size is B4, the facsimile apparatus on the original transmission side may output a digital command signal (DCS). )
At this time, the fact that the paper size of the transmission original is B4 size is notified, and a data signal for B4 size is generated based on the image data of the transmission original read by the reading device.

In addition, if the facsimile device on the document receiving side is a model capable of printing a document only with A4 size paper, and the sheet size of the document to be transmitted by the facsimile device on the document transmitting side is B4 size , The facsimile device on the original transmission side is provided with a digital command signal (DC
In S), it is notified that the paper size of the transmitted document is A4 size. Then, the image data of the transmission original read by the reading device is reduced to A4 size to generate a data signal for A4 size.

When the digital command signal (DCS) is transmitted as described above, the facsimile apparatus on the document transmitting side transmits a training signal (Training Check: TCF) for exchanging test patterns. When this training signal is sent, the fax machine on the document receiving side adjusts the modem etc. by the training signal, and when the adjustment is completed and the preparation for reception is completed, the reception preparation confirmation signal (Confirmation to Receive: CFR) is transmitted. To do.

Upon receipt of the reception preparation confirmation signal (CFR), the facsimile apparatus on the original document transmission side assumes that the facsimile apparatus on the original document reception side is ready to receive a data signal (facsimile message) containing the content of the original document.
Data signal generated by itself (facsimile message)
To send. In addition, the facsimile device on the original transmission side is
Follow the steps above to load the next original one by one into the device,
When the data signal is transmitted for each page of the original and the transmission of the data signals corresponding to all the originals is completed, the procedure end signal (EOP) is transmitted and the line is disconnected.

By the way, in this type of facsimile apparatus, it takes a long time until the original is taken into the apparatus and the detection result of the detection sensor is acquired, especially when a reading with a high resolution is instructed. After receiving the identification signal (DIS), the digital command signal (DCS) as a response signal may not be transmitted within a specified time defined in the standard.

General fax machine (original receiving side)
When the reception of the digital command signal (DCS) fails within the specified time in response to the above problem, the digital identification signal (DIS) is transmitted again as shown in FIG. 11B. The facsimile apparatus on the document transmitting side can continue the subsequent communication procedure even if the digital command signal (DCS) is transmitted with a delay. Incidentally, FIG.
1 (b) is a sequence flow showing a communication procedure between the facsimile device on the original document receiving side and the facsimile device on the original document transmitting side having the above configuration.

[0015]

However, some facsimile machines fail to receive the digital command signal (DCS) within a prescribed time (within 3 seconds).
As shown in (c), there are some which cause a communication error and disconnect the line. Therefore, when a document is to be transmitted to such a device, the detection sensor is detected when the document is pulled into the device. A specified time (3
If a facsimile apparatus having the above-mentioned configuration that requires more than one second) is used, there are cases where FAX communication cannot be performed properly.

In order to solve such a problem, for example, before calling the facsimile device on the original document receiving side, the contents of the transmitted original document are read by the facsimile device on the original document transmitting side and the image data is stored. At the time of establishing the connection, the digital command signal (DCS) based on the image data stored in advance may be transmitted to the facsimile apparatus on the document transmitting side.

However, according to such a method, since the storage medium for storing all the image data relating to the transmission original must be attached to the facsimile apparatus on the original transmission side, the product can be provided at a low cost. There wasn't. In addition, a method of providing a detection sensor on a tray for a transmission original or the like and configuring a facsimile device so that the form of the original sheet can be detected before the original sheet is taken into the apparatus is conceivable. When adopted, A
When a plurality of originals of different sizes such as 4 and B4 are set, there is a problem that the individual original sizes cannot be detected.

Further, conventionally, a mechanism for detecting the size of a document sheet has been partially shared with a mechanism for detecting the document position required when controlling the document transportation. However, if the detection sensor is provided externally, the mechanism cannot be shared, so a mechanism for detecting the paper size must be provided separately, resulting in a problem that the cost of the product increases. It was

The present invention has been made in view of the above problems, and provides a communication device that can be manufactured at low cost and that can transmit an original regardless of the model of the facsimile device on the receiving side. With the goal.

[0020]

A communication device according to claim 1, which has been made to achieve the above object, includes a detecting means for detecting a form of a transmission original to be transmitted to an external device from the transmission original, and a transmission original. A reading means for reading the contents of the original document and outputting the reading result, and connecting with an external device through a communication means for connecting itself to an external device through a communication network so as to be capable of bidirectional communication. Once established, the transport control means captures the transmitted original in the device,
While the transmission document is being conveyed to a position where the detection unit and the reading unit function, the detection unit and the reading unit are appropriately operated.

Further, in the communication device of the present invention, when the digital identification signal (DIS) is received from the external device through the communication means after the connection with the external device is established by the communication means, the response signal transmission means performs the digital identification. Signal (DI
As a response signal to S), a digital command signal (DCS) storing document information relating to the form of the transmitted document is transmitted to an external device via the communication means.

After the transmission of the digital command signal (DCS), the communication device causes the data transmitting means to transmit the digital command signal (DCS) to the data signal based on the detection result of the detecting means and the reading result of the reading means. ) Is generated so as to match the document information transmitted to the external device, and the data signal is transmitted to the external device via the communication means.

By the way, the response signal transmitting means of the communication apparatus of the present invention transmits the digital command signal (DCS) storing the document information relating to the form of the transmission document as described above, and the actual form of the transmission document. Regardless of this, the digital command signal (DCS) storing predetermined document information is transmitted to the external device via the communication means, whereby the communication device of the present invention transmits the digital identification signal (DIS). Upon reception, the digital command signal (DCS) can be transmitted to the external device via the communication means without waiting for the detection result by the detection means.

Therefore, according to the communication device of the present invention,
Even when the external device on the document receiving side fails to receive the digital command signal (DCS) within the specified time and causes a communication error, the data signal can be normally transmitted to the external device.

The communication device of the present invention can be applied to a facsimile device. Further, the detection means in this communication device may be configured to detect whether the transmission document is color or monochrome, or to detect the paper size (document width, etc.) of the transmission document. May be. Further, depending on the function of the detecting means, the response signal transmitting means is configured to store monochrome / color information indicating whether or not the original is in color as original information and to transmit a digital command signal (DCS). You can
The paper size of the document may be transmitted as the document information.

If the communication device is configured so that only predetermined document information can be transmitted regardless of the detection result, the document information suitable for the actual form of the transmission document can be transmitted based on the detection result. Therefore, in the communication device according to claim 1, as described in claim 2, the response signal transmitting means is provided with the first response means and the second response means, and the response signal transmitting means is provided. It is preferable that either the first response means or the second response means is selected and operated.

According to another aspect of the present invention, when the communication device receives a digital identification signal (DIS) from the external device via the communication means after the communication device establishes a connection with the external device,
The response signal transmitting means is configured to select and operate either the first response means or the second response means.

At this time, when the response signal transmitting means selects the first response means, the communication device causes the first response means to output a digital command signal (DCS) storing predetermined document information regardless of the actual form of the transmitted document. ) Is transmitted to the external device via the communication means. On the other hand, when the response signal transmitting means selects the second response means, the communication device causes the second response means to acquire the detection result of the detection means and to store the digital command signal (which stores the document information based on the detection result). DCS)
Is generated, and the generated digital command signal (DCS) is transmitted to the external device via the communication means.

In the communication device according to the second aspect of the present invention configured as above, when the external device fails to receive the digital command signal (DCS) within a specified time, a communication error is caused. By operating the one response means, the data signal can be normally transmitted to the external device. When the external device is a device that transmits the digital command signal (DCS) again even if the external device fails to receive the digital command signal (DCS) within the specified time, by operating the second response means, Document information suitable for the actual form of the transmitted document can be transmitted to the external device.

That is, in this communication device, if the external device is a device that transmits the digital command signal (DCS) again even if the external device fails to receive the digital command signal (DCS) within the specified time, detection is performed. The external device on the document receiving side is provided with the external device on the document receiving side based on the detection result by the means and the function identification information indicating the function of the communication device on the document receiving side included in the facsimile information field (FIF) of the digital identification signal (DIS). Within the range of functions to
Document information representing the actual form of the transmitted document can be transmitted by a digital command signal.

Therefore, in the communication device according to the second aspect, the external device (facsimile device or the like) can realize the actual form of the transmission original by making the most of the functions of the external device on the original receiving side. As long as it is reproduced, the output processing of the received document based on the data signal can be performed.

As described in claim 3, the response signal transmitting means can select and operate either the first response means or the second response means based on the instruction from the user. It should be configured as possible. According to the communication device of claim 3, which has the response signal transmitting means having such a configuration, the user is in a communication error unless the external device of the document transmission destination transmits the digital command signal (DCS) within a specified time. The first response means can be selected and activated when it is known to be the type of device that causes the. Therefore, according to this communication device, it is possible to sufficiently suppress the occurrence of a communication error due to the above cause.

Further, when the user knows that the external device of the document transmission destination is a type of device that does not cause a communication error depending on the above-mentioned cause, the user can select the second response means to operate. it can. Therefore, according to this communication device, the external device on the receiving side can reproduce the actual form of the transmitted document as much as possible and output the received document.

The response signal transmitting means may be configured to receive a command from the user through the operation unit provided in the device. Further, the response signal transmission means may be configured to set which of the first response means and the second response means is selected in advance based on a command from the user. That is, the response signal transmitting means is configured to store switching information as setting information based on a command from the user and select and operate the first response means or the second response means by this switching information. Good.

In addition to this, the response signal transmitting means can store the switching information indicating which of the first response means and the second response means is to be operated for each external device of the transmission destination. Then, one of the first response means and the second response means may be selected and operated based on the switching information.

In the communication device having such a structure, by storing the switching information in the response signal transmitting means in advance,
Of the first response means and the second response means, the response signal transmission means can be made to automatically select the one suitable for the external device of the document transmission destination. Therefore, it is not necessary for the user to specify which of the first response means and the second response means to operate each time the document is transmitted.

More specifically, the response signal transmitting means uses the switching information as the model information of the destination external device and the address information used when connecting the external device and the device via a communication network. It is preferable that the information is stored in association with (telephone number, etc.). With such a configuration, the designer of the apparatus can easily select the response signal transmission means from the first response means and the second response means, whichever is more suitable, depending on the document transmission destination. can do.

Further, after the communication device establishes the connection with the external device by the communication means, the transport control means continuously takes in a plurality of transmission originals into the apparatus, and further the data transmission means makes the received transmission originals. When the corresponding data signal is continuously transmitted to the external device, the response signal transmitting means may be configured as described in claim 5.

The response signal transmitting means of the communication device according to claim 5 operates the first response means after the connection with the external device is established by the communication means, and the data corresponding to the first original by the data transmitting means. When the signal transmission is completed, the second response means is operated instead of the first response means.

In the communication device having such a configuration, when the external device is a device which causes a communication error due to the above-mentioned cause, the digital command signal (DC
After transmitting S), the digital command signal (DCS) can be transmitted again before switching to the second response means and transmitting the data signal corresponding to the second document. Although it is not possible to transmit the document information by using the detection result of the detection unit for the document, it is possible to transmit the document information to the external device using the detection result of the detection unit for the second and subsequent documents. it can.
As a result, even when the external device is a facsimile device in which the external device is likely to cause a communication error due to the delay of transmission of the digital command signal (DCS), the communication device can copy the second and subsequent documents in a form close to the actual form of the transmission document. It can be output to an external device.

At least two of the function of the response signal transmitting means according to claim 3, the function of the response signal transmitting means according to claim 4 and the function of the response signal transmitting means according to claim 5 are provided. It is very convenient to provide the response signal transmitting means having the above functions in the communication device.

For example, when transmitting a document to an external device having switching information, the first response means or the second response means is automatically selected and switched based on the switching information without waiting for a command from the user. When multiple originals are continuously transmitted to an external device having information, and when the first response means is selected when establishing the connection, the second response means is selected before transmitting the second and subsequent originals. If the response signal transmitting means is configured to do so, the effects of the above-mentioned functions are synergistically obtained, which is convenient. In addition, the response signal transmitting means is configured to operate the first response means or the second response means in response to a command from the user when transmitting the document to the external device having no switching information. And convenient.

In addition to this, when the detecting means is configured to detect the paper size of the transmission original as the form of the transmission original, the communication device according to any one of claims 1 to 5 will be specifically described. It is preferable that the configuration is as described in claim 6. The communication device according to claim 6, wherein the response signal transmitting means transmits a digital command signal (DCS) in which information regarding the paper size of the transmission original document is stored as document information to the external device through the communication means, and then responds. Based on the information about the paper size transmitted as the document information by the signal transmitting unit, the data transmitting unit appropriately enlarges or reduces the image data as the reading result acquired from the reading unit to generate a data signal,
The data signal is transmitted to the external device via the communication means.

If the apparatus is configured as described above, in the communication apparatus of the type in which the detection means detects the paper size of the document and generates the data signal based on the detection result, the external apparatus causes the communication error due to the above-mentioned cause. As a result, it is possible to solve the problem that the original cannot be transmitted.

When the response signal transmitting means of the communication device according to the sixth aspect is provided with the first response means and the second response means having the above-mentioned configuration, the transmission destination is a digital command signal within a specified time. If the external device is of a type that transmits the digital identification signal (DIS) again when the reception of (DCS) fails, the document information that reflects the actual form of the transmitted document can be transmitted. As a result, This is convenient because it is possible to generate and transmit a data signal suitable for the actual form of the transmission original.

That is, since the first response means transmits predetermined document information regardless of the actual form of the transmitted document, for example, even if the external device can output (print) a B4 size document. Regardless, if the digital command signal (DCS) declares that the A4 size document is to be transmitted as the predetermined document information, the B4 size document must be reduced to the A4 size and transmitted. However, when the external device again receives the digital command signal (DI
In the case of the above-mentioned type of device that transmits S), operating the second response means can prevent such a situation from occurring.

[0047]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
A description will be given with reference to the drawings. FIG. 1 is a schematic cross-sectional view (FIG. 1A) showing a configuration of a main part (laser printer unit 10 and scanner unit 60) of a facsimile device 1 as a communication device to which the present invention is applied, and a scanner unit 60. It is a schematic sectional drawing (FIG.1 (b)) showing the structure of. Further, FIG. 2 is a block diagram showing an electrical configuration of a main part of the facsimile apparatus 1.

As shown in FIG. 1, the facsimile machine 1
Is composed of a laser printer unit 10 and a scanner unit 60. The laser printer unit 10 includes a printing paper intake mechanism unit 20, an image forming unit 30, a fixing unit 40, a printing paper discharge mechanism unit 50, and the like, and a control unit 80 (see FIG. 2).
The above-mentioned units are operated under the control of a print sheet, and an image based on a data signal (facsimile message) received from an external facsimile device 5 through the communication line network 3 (public telephone line network in this embodiment) is printed. Form on top.

The printing paper take-in mechanism unit 20 constituting the laser printer unit 10 is provided with a paper tray 21 outside the main body case, and the upper surface of the printing paper stacked on the paper tray 21 is placed on the paper tray 21. By pressing the paper feed roller 25 by the urging force of the spring 23 installed on the back, and rotating the paper feed roller 25 in this state, the uppermost printing paper is separated and taken into the apparatus and taken in. The printing paper is conveyed to the pair of registration rollers 27, 28 arranged on the downstream side in the paper conveyance direction inside the apparatus. Then, the registration rollers 27 and 28 convey the printing paper conveyed from the paper feed roller 25 to a transfer position between a photosensitive drum 35 and a transfer roller 37 described later at a predetermined timing.

The image forming section 30 is provided with a beam scanner 31 having a laser oscillator and the like, a developing device cartridge 33 containing toner as a developer, a photosensitive drum 35, a transfer roller 37, etc. By the control, the laser light based on the facsimile message emitted from the beam scanner 31 is irradiated onto the photosensitive drum 35, and an electrostatic latent image based on the facsimile message is formed on the photosensitive drum 35.

Further, the image forming section 30 includes the photosensitive drum 35.
The electrostatic latent image formed on the upper surface is developed by the toner supplied from the developing device cartridge 33, and is transferred to the transfer roller 37.
An image (toner image) is formed on the print paper by transferring the print paper supplied between the photosensitive drum 35 and the photosensitive drum 35. Then, by rotating the transfer roller 37, the print sheet on which the image is formed is conveyed to the fixing unit 40.

The fixing section 40 includes registration rollers 27, 28.
Is provided further downstream in the conveyance direction of the printing paper from the pressure contact portion (transfer position) between the photosensitive drum 35 and the transfer roller 37, and includes a heating roller 41 and a pressing roller 43. The printing paper on which the toner image is formed by the image forming unit 30 is heated and pressed by the heating roller 41 and the pressing roller 43 while being conveyed to the printing paper discharging mechanism unit 50 side. Is fixed on the printing paper.

The print sheet discharging mechanism section 50 is provided on the downstream side of the fixing section 40 in the conveying direction, and is conveyed from the fixing section 40 by a pair of sheet discharge rollers 51 and 53 for conveying the sheet. Output paper tray 5 located on the downstream side for printing paper
Discharge to 5. On the other hand, the scanner unit 60 mainly includes a stacker 61, an automatic document feeder (ADF) unit 63, a separation roller 65, and a document leading edge position detection sensor 6
7, an original width sensor 69, a pressing roller 71, a paper feeding roller 72, a contact image sensor (CIS) unit 73, an original pressing plate 74, and paper ejection rollers 75 and 76,
The document transport mechanism drive unit 77 (see FIG. 2) is provided, and the control unit 8 receives a document transmission command from the user.
Under the control of 0, the above-mentioned respective parts are driven by the document conveying mechanism drive part 77, whereby the contents of the document are read from the transmission document and the image data is generated.

More specifically, the scanner section 60 includes an ADF section 63 for the lowermost portion of a plurality of transmission originals stacked such that the surface containing the original content faces the stacker 61.
The pressure roller is pressed against the separation roller 65, and the separation roller 65 is rotated in this state to separate the lowermost transmission originals one by one and draw them into the apparatus.

At the time of this pull-in, the scanner section 60
The leading edge position detection sensor 67 detects the leading edge position of the transmission original document, and the leading edge of the transmission original document is temporarily held at the retracted position by this, and according to the subsequent conveyance instruction, the transmission rollers face each other and come into contact with each other. And paper feed roller 72
And the CIS unit 73 located on the downstream side thereof.

The CIS unit 73 is configured to generate image data by illuminating a document with LEDs arranged inside from the upper surface formed of a glass plate and converting reflected light into an electric signal by an image sensor. Cage,
The scanner unit 60 generates the document by the CIS unit 73 by placing the document on the upper surface of the CIS unit 73 and causing the CIS unit 73 to read the content of the document while the document pressing plate 74 presses the document surface against the glass plate. The image data is output to the control unit 80.

Then, by the paper discharge rollers 75 and 76 located on the downstream side of the CIS unit 73 in the document conveying direction, C
The transmission original read by the IS unit 73 is discharged to the original tray 79. The various rollers that make up the scanner unit 60 are driven by a motor or the like built in the document conveying mechanism drive unit 77. Further, the document width sensor 69 for detecting the width (paper size) of the transmission document is provided around the paper feed roller 72, and the scanner unit 60 uses the document width sensor 69 to feed the paper feed roller. The sheet size (original width) of the original sheet passing between 72 and the pressing roller 71 is detected, and the detection signal is output to the control unit 80. Further, the document width sensor 69 is configured to be able to detect the rear end position of the document sheet, and the scanner unit 60 is configured to control the conveyance of the transmission document by the document width sensor 69. ing.

Next, the electrical configuration of the facsimile apparatus 1 will be schematically described with reference to FIG. As shown in FIG. 2, the facsimile device 1 includes a laser printer unit 10, a scanner unit 60, a network control unit (NCU) 91, an operation unit 93, and a display unit in a control unit 80 that integrally controls each unit of the apparatus. The unit 95 and the unit 95 are connected to each other.

The control section 80 includes a CPU 81 and a ROM 83.
(Flash memory etc.), RAM85, EEPROM8
9 and a modem 87 for connecting the facsimile machine 1 to the external facsimile machine 5 through the communication line network 3 so as to enable bidirectional communication, and the ROM 83.
Stores various programs, various setting information defining the operation of the device, etc., EEPROM 89 stores address information such as communication destination telephone numbers, etc., and RAM 85 stores data necessary for executing various programs. It is temporarily stored, and the modem 87 converts a digital signal for communication such as a facsimile message into an analog signal and outputs the analog signal to the NCU 91 connected to the communication line network 3 or the NCU 91.
The communication signal (facsimile message or the like) from the external facsimile device 5 obtained from the above is converted into a digital signal.

An operation unit 93 connected to the control unit 80
Is composed of a key switch and the like, and is configured to input various command signals to the control unit 80 in accordance with a user's external operation. The display unit 95 is composed of a liquid crystal display (LCD) or the like, and is controlled by the control unit 80.
Various information to be notified to the user is displayed on the liquid crystal display. In addition, the facsimile device 1 is provided with a speaker, a receiver, and the like connected to the control unit 80 (not shown).

By the way, the CPU 8 constituting the control unit 80
By executing various programs stored in the ROM 83, the facsimile machine 1 can bidirectionally communicate with the external facsimile machine 5 through the communication line network (public telephone line network) 3 using the modem 87 and the NCU 91. At the same time as connecting, communication with an external facsimile apparatus 5 is performed by a FAX communication procedure of the ITU-T standard, and a data signal (facsimile message) is transmitted and received.

Specifically, the CPU 81 executes the communication control process shown in FIG. 3A to exchange fax tone (CNG, CE) with the facsimile device 5 of the communication destination.
D transmission / reception) to establish a connection with the external facsimile device 5 through the communication network 3. Incidentally, FIG. 3 (a)
Is a functional block diagram functionally showing the operation of the CPU 81 at the time of transmitting a document, and FIG.
It is explanatory drawing showing the data structure in.

After the connection is established, the CPU 81 executes the transmission control process (see FIG. 4) described later in the communication control process,
By calling the data transmission process (see Figure 7),
Communication is performed according to the procedure shown in FIG. Further, the CPU 81 calls the document pull-in / transport process in the transmission control process, performs this process in parallel with the communication control process, and inputs a control signal to the document transport mechanism drive unit 77 at a predetermined timing to send the document. Control the retraction and transportation of the.

In addition, the CPU 81 obtains image data representing the contents of the original from the CIS unit 73 as a reading means by performing the data signal generation processing in parallel with the original conveyance control, and based on the image data. ,
A data signal (facsimile message) for transmission is generated.

Hereinafter, each processing executed by the CPU 81 at the time of transmitting the original and the communication procedure with the external facsimile apparatus 5 will be described with reference to FIGS. 4, 5, 6, and 7. Note that FIG. 4 is a flowchart showing a transmission control process executed after the connection establishment with the external facsimile device 5 is executed when the CPU 81 receives a document transmission command from the user via the operation unit 93. Further, FIG. 5 is a sequence flow showing the communication procedure after the connection is established, and FIG. 6 is the CPU 8
1 is a flowchart showing a document pulling-in / conveying process executed by 1.
FIG. 7 is a flowchart showing the data transmission process executed by the CPU 81.

First, when the CPU 81 receives a command signal representing a document transmission command from the operation section 93, it reads out from the EEPROM 89 the address information (telephone number) representing the destination facsimile machine 5 designated together with the transmission command, or Address information (telephone number) from the operation unit 93 to the user
By manually inputting, the address information is obtained, and based on the address information, the modem 87, NCU 9
1 is operated to establish a connection with the external facsimile apparatus 5, and after the connection is established, the transmission control process shown in FIG. 4 is executed.

When the transmission control process is executed, the CPU 81
First, in S110, it is determined whether or not the A4 width transmission mode is set based on the setting information stored in the EEPROM 89. As shown in FIG. 3B, in the EEPROM 89, the setting information indicating whether or not the A4 width transmission mode is selected is associated with the address information (telephone number) indicating the communication destination facsimile device, and the facsimile information is stored. It is stored for each device. The facsimile device 1 displays a setting screen for the A4 width transmission mode on the display unit 95 to allow the user to specify whether or not to select the A4 width transmission mode using the setting screen, and to display this designation information. It is configured to be acquired from the operation unit 93 and stored.

For example, when the CPU 81 establishes the connection based on the address information (telephone number) manually input from the operation unit 93, in S110, the connection is established without using the address information in the EEPROM 89. Setting information (setting information associated with "no telephone number" in the figure)
When it is determined whether or not the A4 width transmission mode is designated by the user and the connection is established based on the address information in the EEPROM 89, the setting information associated with the address information is referred to. (When "phone number 1" is used as the address information, refer to the setting information shown on the right side of the drawing) to determine whether or not the user has designated the A4 width transmission mode. The setting of the A4 width transmission mode is usually set by the user when a transmission error frequently occurs even when the original is repeatedly transmitted to a specific destination.

When it is determined that the A4 width transmission mode is not selected (No in S110), the CPU 81
In S120, the process waits until the digital identification signal (DIS) is received from the facsimile apparatus 5 of the communication destination, and when it is received (Yes in S120), in S130, the document pull-in / transport process shown in FIG. By controlling the document transport mechanism drive unit 77, and pulling the transmission document into the apparatus,
Transport in the device is performed.

As shown in FIG. 6, when the document pull-in / transport process is executed, the CPU 81 executes the document pull-in process in S310 to send a control signal for document pull-in to the document transport mechanism driving section 7.
By inputting 7, the separation roller 65 is rotated by the document transport mechanism drive unit 77 to cause the document to be pulled in to the retracted position in the apparatus, and in S320, it is determined whether or not the retracting is successful. Since it takes time to pull in the document, the CPU 81 executes the determination in S320.
Wait for a few seconds (about 3 seconds) until the retraction is completed.

Here, when the CPU 81 determines that the pull-in is not successful (No in S320), the stacker 6
1 If the transmission original is not set on the upper part or if the paper jam occurs and the processing is terminated and it is judged that the processing is successful (Yes in S320), the original drawn in S310 is drawn in after the connection is established in S330. First (first)
It is determined whether or not it is a manuscript.

When the CPU 81 determines that the original is the first original (Yes in S330), the CPU 81 executes the original conveying process in S340, thereby causing the original conveying mechanism drive unit 7 to operate.
7 to control the original feeding mechanism drive unit 77 to feed the paper feed roller 7
2 is rotated so that the document is conveyed to a position where the document width sensor 69 can detect the paper size (document width). In addition, the CPU 81 causes the document to be CISed in the apparatus in accordance with the transmission timing of the data signal (facsimile message).
The document is conveyed to the upper part of the unit 73, and when the conveyance is completed, the document is discharged to the document tray 79. Then, when the series of document conveying operations are completed, the process returns to S310 to start pulling in the next transmission document.

On the other hand, when it is determined that the original drawn in S330 is not the first original (No in S330), the CPU 8
1 in S335, S45 of the data transmission process described later.
The document is made to stand by at the pull-in position until the conveyance instruction is given from 0, and after the conveyance instruction is made (Yes in S335),
The document transport process is executed to cause the document transport mechanism driving unit 77 to perform the above-described document transport operation. When the document transport process ends, the process returns to S310 and the above S310 to S34.
The operation up to 0 is repeatedly executed until the transmitted document is exhausted.

It should be noted that the CPU 81 is configured to process the document pull-in / conveyance process in parallel with the process of S140 and the subsequent steps of the transmission control process. Therefore, the CPU 81
When the document pull-in / convey process is executed in S130 of the transmission control process and the process proceeds to S140, the process stands by until a detection signal (detection result) is acquired from the document width sensor 69 in S140.

When it is determined that the original width of the transmission original has been determined by obtaining the detection signal (Yes in S140), the transmission original is A4 size based on the detection result of the original width in subsequent S150.
It is determined whether the size is B4 size or B4 size, and if it is B4 size, in S160, the function of the facsimile device 5 on the document receiving side included in the facsimile information field (FIF) of the received digital identification signal (DIS). The identification information confirms the paper size (maximum paper width, maximum paper length) that can be output by the receiving-side facsimile device 5. If it is determined in S160 that the receiving-side facsimile device 5 is a model capable of outputting (printing) the received document on B4 size paper (Yes in S160), the CPU
81 generates a digital command signal (DCS) indicating that the B4 size document is to be transmitted in S170, and transmits this digital command signal (DCS) to the receiving-side facsimile device 5, thereby transmitting the sheet of the transmission document. Size is B
Notify that it is 4 sizes.

After this notification, the CPU 81 issues a reduction prohibition instruction to the task that executes the data signal generation processing in S180, and further executes the data transmission processing (FIG. 7) in S290. Note that the CPU 81 is configured to execute the data signal generation processing in parallel with the processing (transmission control processing), and when the transmission original is B4 size,
When a reduction prohibition instruction is received in this data signal generation processing task, based on the image data from the CIS unit 73,
B4 size data signal (facsimile message)
To generate.

On the other hand, the CPU 81 determines in S150 that the transmitted document is of A4 size, or in S160, the receiving side facsimile apparatus 5 can output the received document of only A4 size paper (that is, the received document is A4 size). , B4 size cannot be output (printed)) (S16
If No, the process proceeds to S240.

Then, in S240, the CPU 81
By generating and transmitting a digital command signal (DCS) indicating that an A4 size document is to be transmitted, it is notified that the paper size of the transmission document is A4 size, and the document width is determined in S250. Therefore, the processing is moved to the subsequent S260.

When it is determined in S260 that the paper size (original width) is B4 size, the CPU 81
In S270, the task that executes the data signal generation process is instructed to reduce the image data from the B4 size to the A4 size, and thereafter, in S290, the data transmission process (FIG. 7) is executed. The CPU 81 determines that the transmitted document is B
When the data signal generation processing task receives this reduction instruction in the case of the 4 size, the image data relating to the B4 size original obtained from the CIS unit 73 is changed to the A4 size.
The data signal (facsimile message) for A4 size is generated by reducing the size.

When it is determined in S260 that the paper size (original width) is A4 size, the CPU 81
In S280, a reduction prohibition instruction is issued to the task that executes the data signal generation process, and further, in S290, the data transmission process (FIG. 7) is executed, and the transmission control process is ended together with the end of the data transmission process. . When the transmission original is of A4 size and the data signal generation processing task receives a reduction prohibition instruction, the CPU 81 receives an A4 size data signal (facsimile message) based on the image data from the CIS unit 73. To generate.

On the other hand, when the A4 width transmission mode is selected, the CPU 81 operates as follows in the transmission control process. When determining that the A4 width transmission mode is selected (Yes in S110), the CPU 81 continues to S2.
At 20, waiting for a digital identification signal (DIS) to be transmitted from the facsimile device 5 on the document receiving side,
When the digital identification signal (DIS) is received, S230
Then, after the document pull-in and carry-out process is executed in the same manner as in S130 above, S is performed without waiting for the detection signal from the document width sensor 69.
At 240, a digital command signal (DCS) indicating that an A4 size original is to be transmitted immediately is transmitted. That is, the CPU 81 determines that the paper size (original width) of the transmission original is A4 within a specified time (within 3 seconds) after receiving the digital identification signal (DIS), regardless of the actual paper size (original width) of the transmission original. The size of the digital command signal (DCS) is sent to the facsimile device 5 on the document receiving side.
Will be notified at.

Thereafter, the CPU 81 waits for the detection signal from the document width sensor 69 to be input in S250, and when the detection signal is received, the CPU 81 determines that the document width of the transmission document has been determined, and in S260. The actual paper size (original width) of the transmission original is identified, and if the actual paper size is B4 size, in S270, a reduction instruction from B4 size to A4 size is input to the data signal generation processing task. On the other hand, if the actual paper size is A4 size, the CPU
In S280, the 81 inputs a reduction prohibition instruction to the data signal generation processing task, thereafter executes the data transmission processing (S290), and ends the transmission control processing after the data transmission processing ends.

Next, the data transmission process will be described with reference to FIG. When the CPU 81 executes the data transmission process, in S410, the CPU 81 waits for reception of the reception preparation confirmation signal (CFR) transmitted from the facsimile apparatus 5 on the document receiving side by the training signal (TCF) transmitted previously, and receives the data. If it is determined that the preparation confirmation signal (CFR) has been received (Yes in S410), in S420, CI is performed while the document is being conveyed by the document pull-in / convey process that is being processed in parallel.
The S unit 73 is caused to read the contents of the original, a data signal (facsimile message) representing the contents of the original is acquired from the data signal generation processing task, and this data signal is sent to the original via the modem 87 and NCU 91 (the original receiving side).
To the facsimile machine 5 (data flow indicated by the character “FAX” in FIG. 5).

After that, the CPU 81 determines in S430 whether or not the next original is present depending on whether or not the next original has been pulled in successfully. If it is determined that the next transmission original is present (Yes in S430), the CPU 81 determines in S4.
40, a multi-page signal (MP)
S) is transmitted to the facsimile device 5 on the document receiving side, and a message confirmation signal (Message Confirmation) which is a response signal is transmitted.
: MCF) is received, a conveyance instruction is input to the document pull-in / conveyance processing task in subsequent S450. The CPU 81
Receives a transport instruction in the document pull-in transport processing task,
As described above, it is determined Yes in S335, the document is conveyed to the CIS unit 73 side in S340, and the CIS unit 73 is made to read the document.

After the carrying instruction in S450, the CPU 8
1 returns the processing to S420, acquires a data signal representing the next (second sheet) original content from the data signal generation processing task, and transmits the acquired data signal to the facsimile apparatus 5 on the original reception side. On the other hand, when the transmission of all the data signals corresponding to the original to be transmitted by repeating the above operation, the CPU 81 determines in S430 that there is no original to be transmitted (No in S430), and the procedure in the subsequent S460. Send an end signal (End of Procedures: EOP),
Further, in S470, after waiting for a message confirmation signal (MCF) from the facsimile device 5 on the document receiving side, a disconnection command signal (Disconnect: DCN) is transmitted to the facsimile device 5 on the document receiving side to disconnect the line.

In summary, in the facsimile apparatus 1 of the present embodiment, the CPU 81 executes the above-mentioned processes so that when the A4 width transmission mode is selected, the document is pulled in and the document width detected by the document width sensor 69. The digital command signal (DCS) notifies the facsimile apparatus 5 on the original receiving side that the original of A4 size is transmitted as predetermined original information without waiting for the completion of the detection process of the original width sensor. The detection signal (detection result) of the document width by 69 is obtained, and based on the detection signal (detection result), a reduction instruction or a reduction prohibition instruction is issued to the data signal generation processing task, whereby the CIS unit 73 outputs. Image data corresponding to the actual paper size of the transmitted original (the paper size that matches the detection result of the original width sensor 69). And by reducing to fit the paper size of the transmission document has notified to the facsimile apparatus 5 of the original recipient generates data signals, and transmits it to the facsimile apparatus 5 of the document recipient.

Therefore, in the facsimile apparatus 1 of the present embodiment, the facsimile apparatus 5 on the document receiving side receives the digital command signal (DCS) within the specified time (within 3 seconds) after the transmission of the digital identification signal (DIS). Even if the model causes an error if it is not possible, it is possible to avoid the error caused by this and perform the FAX communication normally.

Further, the facsimile apparatus 5 on the document receiving side
However, if the model fails to receive the digital command signal (DCS) within the specified time and transmits the digital identification signal (DIS) again, the A4 width transmission mode is set not to be selected. By setting it, a data signal suitable for the actual paper size of the transmission original can be transmitted to the facsimile apparatus 5 on the original receiving side, and the facsimile apparatus 5 on the original receiving side can have a function (printing capability) of the apparatus. Within the range, it is possible to reproduce the actual form of the transmission document and output (print) the reception document.

When the data transmission processing is configured as in the above embodiment, when the actual paper size (original width) of the transmission original is B4 size and the data signal is transmitted in the A4 width transmission mode, The facsimile device 1 reduces all the transmission originals of the second and subsequent sheets as well as the first original. For this reason, the facsimile apparatus 5 on the receiving side outputs an original that is difficult for the user to see, which is inconvenient.

Therefore, in order to avoid such a problem, the data transmission process shown in FIG. 7 is changed to the data transmission process of the modification shown in FIG. 8 to operate the facsimile apparatus 1 of the above embodiment. Is good. Modifications will be described below with reference to FIGS. 8, 9, and 10. In the modified example, after reading the first original, the facsimile apparatus 1 immediately starts pulling in the next original by the original pull-in / convey processing shown in FIG. 6, and the second digital identification signal (DI
The description will proceed assuming that the next original is kept waiting at the retracted position before receiving S). Also,
FIG. 8 is a flow chart showing a modified data transmission process executed by the CPU 81, and FIG. 9 is a flowchart showing a modified data transmission process executed by the CPU 81 with the external facsimile apparatus 5 and FA.
A sequence flow showing a communication procedure when performing X communication,
FIG. 10 is a flowchart showing a sub data transmission process which is called and executed by the CPU 81 when executing the data transmission process of the modified example.

The CPU 81 executes S29 of the transmission control process.
When the data transmission process of the modified example shown in FIG. 8 is executed at 0, first at S510, the reception preparation confirmation signal (CF
R), and wait for reception preparation confirmation signal (CF
R) is received (Yes in S510), S
At 520, a data signal (facsimile message) representing the original content of the first transmission original is acquired from the data signal generation processing task, and the data signal corresponding to the first transmission original is transmitted via the modem 87 and NCU 91. The document is transmitted to the facsimile device 5 of the destination (in FIG. 9, the character "F"
Data flow indicated by "AX").

After that, the CPU 81 determines in S530 whether or not the pulling of the next original has succeeded, and if it determines that there is no next (second) original to be transmitted, moves the processing to S750, If it is determined that there is the (second sheet) transmission document (Yes in S530), the sub data transmission process (FIG. 10) is executed in S600.

When the sub data transmission process is executed, the CPU 8
1 determines whether or not the A4 width transmission mode is selected in S610 (that is, after the connection is established, A
It is determined whether or not the FAX communication corresponding to the 4-width transmission mode is performed), and if it is the A4-width transmission mode (Y in S610).
es), in S615, a message end signal (End of Me
ssage: EOM) is transmitted to the facsimile device 5 on the document receiving side, and in S620, the process waits until a digital identification signal (DIS) is received from the facsimile device 5 on the receiving side.

When the digital identification signal (DIS) is received, the CPU 81 inputs a transport instruction to the document pull-in / transport process task in S625, and causes the document transport mechanism drive section 77 to input the next document (second document). ) Is the original width sensor 69
And to the CIS unit 73 side, and in S630, the paper size (original width) of the transmission original is the original width sensor 6
It waits until it is detected by 9 (that is, until the document width is determined). Since the original drawing is completed before the digital identification signal (DIS) is received, the transmission of the original to the original width sensor 69 position after the instruction of the conveyance is sufficiently shorter than the specified time (3 seconds). It is possible to do. Correspondingly, the standby in S630 is the specified time (3
(Seconds) is completed in a sufficiently shorter time.

If it is determined that the paper size (original width) of the transmitted original is fixed (Yes in S630), the CPU 8
1 identifies the paper size (original width) of the transmission original in S635 based on the detection signal acquired from the original width sensor 69. Then, if it is determined that the paper size of the transmission original is B4 size, the facsimile apparatus 5 on the receiving side B-sizes in S640 based on the digital identification signal (DIS).
It is determined whether or not a function capable of outputting a 4-size received document is provided, and if it is determined that the function is provided, S6
At 45, a digital command signal (DCS) is used to notify the facsimile apparatus 5 on the receiving side that a B4 size document is to be transmitted.

Thereafter, the CPU 81 inputs a reduction prohibition instruction to the data signal generation processing task in S650, and thereafter waits in S685 until the reception preparation confirmation signal (CFR) is received, and the reception preparation confirmation is carried out. If it is determined that the signal (CFR) is received (Yes in S685), the sub data transmission process is ended, and the process proceeds to S710 of the data transmission process.

On the other hand, in S635, the original paper size is A
If it is determined that the size is 4 or the facsimile machine 5 on the receiving side does not have the output function in the size B4 in S640 (No in S640), the CPU 81 determines in S660.
A digital command signal (DCS) is used to notify the facsimile apparatus 5 on the receiving side that an A4 size original will be transmitted.

Then, in S670, the paper size (original width) is identified, and if the original is B4 size, a reduction instruction from B4 size to A4 size is input to the data signal generation processing task in S675. , The original is A4
If it is the size, a reduction prohibition instruction is input to the data signal generation processing task in S680, and thereafter, the above-described S6 is performed.
After the processing at 85, the sub data transmission processing ends.

In addition, if it is determined in S610 that the mode is not the A4 width transmission mode (No in S610), the CPU 81
After inputting the multi-page signal (MPS) to the facsimile apparatus 5 on the document receiving side in S690, S695
At, input the transportation instruction to the document pull-in transportation processing task,
The sub data transmission process is ended, and the process proceeds to S710 of the data transmission process.

In S710, the CPU 81 obtains the data signal (facsimile message) corresponding to the next (second) original document from the data signal generation processing task, and the data signal is transmitted via the modem 87 and NCU 91 to the original document. The data is transmitted to the destination facsimile machine 5.

Then, in S720, the CPU 81 determines whether or not there is a next (third and subsequent) transmission document, and determines that there is a next (third) transmission document (Yes in S720).
s), in S730, the multi-page signal (MPS) is transmitted to the facsimile machine 5 on the receiving side, and in S740, a conveyance instruction is input to the document pull-in conveyance processing task, and then the process is returned to S710, and the next (3) A data signal corresponding to the (first) document is transmitted to the facsimile machine 5 on the receiving side.

In this way, the CPU 81 continuously transmits data signals corresponding to a plurality of originals one by one,
When there are no more originals to be transmitted (No in S720), the process proceeds to S750. Then, the CPU 81 transmits a procedure end signal (EOP) to the receiving side facsimile device 5 in S750, and upon receiving a message confirmation signal (MCF), transmits a disconnection command signal (DCN) to the facsimile device 5 in S760. Then disconnect the line.

Although the modified example has been described above, in the modified facsimile apparatus, if the receiving-side facsimile apparatus 5 fails to receive the digital command signal (DCS) within the specified time (within 3 seconds), Even in the case of a model that causes a communication error, it is possible to transmit a digital command signal (DCS) based on the actual paper size (original width) of the transmitted original by the sub-data transmission process, and the second and subsequent originals. With regard to (1), a data signal suitable for the actual paper size of the transmission original can be transmitted to the facsimile device 5 on the original receiving side. Therefore, in the facsimile apparatus of the modified example, regardless of which of the above two types (models) the facsimile apparatus 5 on the original document receiving side, the facsimile apparatus 5 on the original document receiving side is provided with respect to the second and subsequent original sheets. Functions of the device (printing capacity)
It is possible to reproduce the transmitted document to the maximum extent within the range and output (print) the received document.

Although the embodiment of the present invention has been described above, the communication means of the present invention is the modem 87 and N of this embodiment.
Corresponding to the CU 91, the detection means is a document width sensor 6 for detecting the paper size (document width) of the document as the form of the transmission document.
9, the reading means is a CI functioning as a scanner.
It corresponds to the S unit 73.

The transfer control means of the present invention is the CPU 81.
However, in the document pull-in / transport process, the document transport mechanism driving unit 77 of the scanner unit 60 is controlled to pull the transmission document into the apparatus, and further, the transmission document is transported to the installation position of the document width sensor 69 and the CIS unit 73. The document width sensor 69 detects the paper size of the transmission document, and the CIS unit 73 reads the content of the transmission document.

The response signal transmission means is realized by the transmission control processing executed by the CPU 81, and the first response means is that the CPU 81 makes the CPU 81 irrespective of the actual form of the transmission original (that is, the original width sensor 69 S without waiting for the detection result), S
At 240, as a digital command signal (DCS) storing predetermined document information, a digital command signal (DCS) indicating that an A4 size document is transmitted is generated and transmitted.

Further, in the second response means, the CPU 81 acquires the detection signal of the document width sensor 69, and in S150, identifies the paper size of the transmission document based on the detection signal, and transmits the B4 size document. Either the process of S170 for transmitting a digital command signal (DCS) indicating that the process is to be performed or the process of S240 for transmitting a digital command signal (DCS) indicating that an A4 size document is to be transmitted. It is realized by the operation of selecting and switching.

The data transmitting means of the present invention is the CPU 8
1 inputs a reduction instruction or a reduction prohibition instruction to the data signal generation processing task (S180, S270, S280) and a digital command signal (DCS) in the data signal generation processing based on the reduction instruction or the reduction prohibition instruction. This is realized by the operation of generating a data signal suitable for the notified paper size and the operation of transmitting the data signal acquired from the data signal generation processing task to the external facsimile apparatus 5 in the data transmission processing.

In addition, the operation of the response signal transmitting means for selecting either the first response means or the second response means based on the instruction from the user is performed by the CPU 81 in the EEPROM 89 according to the instruction from the user. And stores setting information as switching information of the present invention, and based on the setting information, S
It is realized by an operation of determining whether or not the A4 width transmission mode is selected in 110 and switching the subsequent operation according to the determination result.

When the response signal transmitting means operates the first response means after the connection is established and the transmission of the data signal corresponding to the first original is completed, the CPU 81 has a function of operating the second response means. After the connection is established, the digital identification signal (DIS) and the digital command signal (DCS) are once exchanged without waiting for the detection result of the document width sensor 69, and then the message end signal (EOM) is sent in S615 of the sub data transmission process. Facsimile device 5 on the document receiving side
And the digital identification signal (DIS) and the digital command signal (DCS) are exchanged again.

Further, the communication device of the present invention is not limited to the above embodiment, and various modes can be adopted. For example, when the facsimile apparatus is configured such that both the data transmission process shown in FIG. 7 and the data transmission process of the modified example shown in FIG. 8 can be executed by the CPU 81 and the A4 width transmission mode is selected, The digital identification signal (DIS) and the digital command signal (DC
If the user is allowed to select whether or not to carry out the exchange of S), the user will be given a method of coping with the case where the device of the document transmission destination is a model causing a communication error due to the above reason. It is convenient to be able to select.

By operating the operation unit 93, A4
The width transmission mode may be selected, and all the transmission may be performed in the A4 width transmission mode while the selection is made. In this case, it is preferable to provide an A4 width transmission mode key on the operation unit 93 so that the A4 width transmission mode can be easily set especially when transmission is not properly performed and transmission errors frequently occur. When the communication is successful as a result of setting the A4 width transmission mode, the A4 width transmission mode is automatically set for the address information shown in FIG. You may In this way, the A4 width transmission mode is automatically set at the time of the subsequent transmission, and it becomes possible to prevent the transmission error from occurring.

Besides, in the above embodiment, the facsimile apparatus 1 in which the document width sensor 69 detects the document width as the form of the transmitted document has been described. However, a sensor for detecting whether the transmitted document is monochrome or color. The present invention may be applied to a facsimile apparatus having a.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a main part configuration of a facsimile apparatus 1 of this embodiment.

FIG. 2 is a block diagram showing an electrical configuration of the facsimile apparatus 1.

FIG. 3 is a functional block diagram functionally showing the operation of the CPU 81 during document transmission (FIG. 3A), and EE
It is explanatory drawing (the figure (b)) showing the data structure in PROM89.

FIG. 4 is a flowchart showing a transmission control process executed by a CPU 81.

FIG. 5 is a sequence flow showing a communication procedure after establishing a connection.

FIG. 6 is a flowchart showing a document pull-in / conveying process executed by a CPU 81.

FIG. 7 is a flowchart showing a data transmission process executed by a CPU 81.

FIG. 8 is a flowchart showing a modified data transmission process executed by the CPU 81.

FIG. 9 is a sequence flow showing a communication procedure when the CPU 81 performs FAX communication with an external facsimile device in a data transmission process of a modified example.

FIG. 10 is a flowchart showing a sub data transmission process executed by the CPU 81.

FIG. 11 is a sequence flow showing a communication procedure after establishing a connection in the related art.

[Explanation of symbols]

1, 5 ... Facsimile apparatus, 3 ... Communication network, 10 ... Laser printer section, 60 ... Scanner section, 61 ... Stacker, 63 ... ADF section, 65 ... Separation roller, 69 ... Original width sensor, 71 ... Pressing roller, 72 ... Paper feed roller, 73 ...
CIS unit, 74 ... Original pressing plate, 75, 76 ... Ejection roller, 77 ... Original conveying mechanism drive section, 80 ... Control section, 8
1 ... CPU, 83 ... ROM, 85 ... RAM, 87 ... Modem, 89 ... EEPROM, 91 ... NCU, 93 ... Operation section, 95 ... Display section

Claims (6)

[Claims] 1. A communication means for connecting itself to an external device via a communication network so as to be capable of two-way communication, a detecting means for detecting a form of a transmission document to be transmitted to the external device from the transmission document, and a transmission After establishing the connection between the reading means for reading the original content of the original and outputting the reading result and the external device by the communication means, the transmission original is taken into the apparatus, and the transmission original is detected by the detecting means and the reading means. After the connection is established between the conveyance control means for appropriately operating the detection means and the reading means and the external device by the communication means, the digital identification signal is transmitted from the external device via the communication means. (D
When IS) is received, the digital identification signal (DIS)
Response signal transmitting means for transmitting a digital command signal (DCS) storing document information relating to the form of the transmitted document to the external device via the communication means, and after transmitting the digital command signal (DCS). A data signal containing the contents of the original is generated based on the detection result of the detecting unit and the reading result of the reading unit so as to match the original information transmitted to the external device by the digital command signal (DCS), A communication device comprising: a data transmission unit that transmits a data signal to the external device via the communication unit, wherein the response signal transmission unit transmits predetermined document information regardless of the actual form of the transmission document. The stored digital command signal (DCS) is transmitted to the external device via the communication means. Apparatus. 2. The response signal transmitting means transmits a digital identification signal (D) from the external device via the communication means after the communication means establishes a connection with the external device.
When IS) is received, a digital command signal (DC) containing predetermined document information is stored regardless of the actual form of the transmitted document.
S) is transmitted to the external device via the communication means, and after establishing a connection with the external device by the communication means, the digital identification signal (D) is transmitted from the external device via the communication means.
When IS) is received, the detection result by the detection means is acquired, a digital command signal (DCS) storing original information based on the detection result is generated, and the generated digital command signal (DCS) is transmitted to the communication means. A second response means for transmitting to the external device via a device, and a configuration for selecting and operating either one of the first response means and the second response means. Item 2. The communication device according to Item 1. 3. The response signal transmission means is configured to be capable of selecting and operating either one of the first response means and the second response means based on a command from a user. The communication device according to claim 2, wherein: 4. The response signal transmission means stores switching information indicating which of the first response means and the second response means is operated for each external device of the transmission destination, and the switching information is stored in the switching information. Based on the above, it is configured such that either one of the first response means and the second response means can be selected and operated.
The communication device according to 1. 5. The apparatus according to claim 5, wherein after the communication means establishes a connection with an external device, the transport control means continuously takes in a plurality of transmission originals into the apparatus, and further, the data transmission means takes in the data. The data signal corresponding to the transmission original is continuously transmitted to the external device, and the response signal transmission means is configured to connect the first response means after the connection with the external device is established by the communication means. The second response means is operated in place of the first response means when the data signal corresponding to the first original is transmitted by the data transmission means. ~ The communication device according to claim 4. 6. The digital command in which the detection unit detects a paper size of a transmission document as a form of the transmission document, and the response signal transmission unit stores information relating to the paper size of the transmission document as the document information. A signal (DCS) is transmitted to the external device via the communication means, and the data transmission means acquires from the reading means based on the information about the paper size transmitted as the document information by the response signal transmission means. The image data as a reading result is appropriately enlarged or reduced to generate a data signal, and the data signal is transmitted to the external device via the communication unit. Item 6. The communication device according to any one of Items 5.