JP2643305B2 - Facsimile machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a facsimile apparatus, and more particularly, to a facsimile apparatus suitable for reducing communication time.

(Prior Art) FIG. 9 shows a process from connection of a line to transmission of image information.
FIG. 3 is a schematic diagram showing a protocol of the G3 facsimile machine.

 The names of the abbreviations shown in FIG. 9 are as follows.

CED: Called station identification signal NSF: Non-standard function signal DIS: Digital identification signal NSS: Non-standard function setting signal TCF: Training check signal CFR: Reception preparation confirmation signal In FIG. Is established, the receiver sends CED and NSF and DIS indicating the receiving capability of the receiver.

The transmitter sends NSS and TCF that determine the transmission mode. If the receiver determines that training is OK, the receiver sends CFR. The TCF signal is a continuous “0” signal for 1.5 seconds.

Upon receiving the CFR, transmission of image information from the transmitter is started.

(Problems to be Solved by the Invention) As described above, in the conventional facsimile apparatus, transmission and reception of various commands, a continuous "0" training check signal and the like are performed from the time the line is connected to the time the image information is transmitted. Since it must be performed, it takes time to actually transmit the image information.

The present invention has been made to solve the above problems.

(Means and Actions for Solving the Problems) In order to solve the above problems, the present invention transmits image information as a training check signal TCF, and decodes the image information in a facsimile apparatus in G3 mode, In a G3ECM mode facsimile machine, a CRC check is performed on the image information, and depending on whether the decoding has been successfully performed or whether there is an error in the data due to the CRC check, the line state is changed. It is characterized in that it is determined whether or not it is good.

With this configuration, image information can be used as the TCF signal instead of the continuous “0” signal.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

 FIG. 5 is a schematic block diagram of one embodiment of the present invention.

In FIG. 5, the scanner 1, the printer 32, and the memory device 5 are connected to the system unit 100. The system unit 100 includes a microcomputer, and the microcomputer executes an operation according to the present invention described later with reference to FIGS.

In addition, the memory device 5 is capable of transmitting the image information at least 1.5 times when the communication is performed at the maximum transmission speed.
It is configured to be able to store image information corresponding to the image information amount when performed for more than one second. Details of the memory device 5 will be described later with reference to FIGS. 6 and 1 and 2.

The system unit 100 is a modem 11, and the modem 11 is an NCU 12
And the NCU 12 is connected to the line.

FIG. 6 is a virtual schematic diagram showing the configuration of the memory device 5 shown in FIG.

In FIG. 6, a memory device 5 is a ring buffer constituted by a RAM or the like.

This ring buffer includes a read pointer RP and a write pointer WP, and an arrow A of the pointers RP and WP.
Movement in the direction (increasing the address) controls reading from and writing to the ring buffer.

That is, when the read pointer RP moves from the initial address position P0 to the address P1, the data in the area from P0 to P1 (the data in the area shown by hatching in FIG. 6) is read in accordance with the movement. After reading, read pointer
When the RP is returned to the initial address position P0 (by resetting), reading from P0 can be performed again.

Further, by moving the write pointer WP, writing (overwriting) to the ring buffer is performed in the direction of arrow A.

The read / write control of the ring buffer is performed by a microcomputer in the system unit 100 (FIG. 5). The configuration and operation of this control unit are shown in the memory control means 6 in FIG. 1 and in FIG. The details will be described later.

FIG. 3 is a flowchart showing the operation of the facsimile transmitter in the operation of the embodiment of the present invention.

First, in step S1, after the line connection, whether the communication is performed in G3 or G3ECM (error correction mode), what is the transmission (communication) speed, and whether image information is transmitted as a TCF signal Alternatively, it is determined whether a communication mode such as a continuous “0” signal is transmitted as in the related art or not. The determination of the communication mode is performed by transmitting a signal indicating the receiver function together with the NSF from the receiver and transmitting the NSS for determining the communication mode from the transmitter in response to the signal.

In step S2, the training check signal TC
It is determined whether image information is transmitted as F or a continuous "0" signal is transmitted as in the related art. In the following description, a mode in which image information is transmitted as the training check signal TCF is called a unique TCF mode.

If in the unique TCF mode, in step S3,
It is determined whether the communication is performed in the G3 mode or the G3ECM mode.

In G3 mode, coded (coded) image information is modulated by a modem and transmitted to a line via an NCU. In G3ECM mode, HDLC format is used before the coded image information is modulated by a modem. Is converted to The conversion to the HDLC format enables a CRC check.

FIG. 7 is a schematic diagram showing the data format of G3 and G3ECM.

In the G3 mode, an EOL signal is added before and after one line of coded image information data. In addition, RTC is added to the end of the last line of each page.

In the G3ECM mode, coded image information is packed into 256-byte frames. Each frame is composed of a header, coding data, and an error check code. An RCP is added to the end of the last frame of each page.

Returning to FIG. 3, if it is determined in step S3 that the G3ECM mode is set, the G3ECM mode is set in step S4. That is, the coded image information is
The means for converting to the HDLC format (described below with respect to FIG. 1) is activated. If it is determined that the mode is G3, the G3 mode is set in step S5. In this case, the conversion means is not activated.

Next, in step S6, after reading and coding the image information from the manuscript, or after coding and further converting the image information into the HDLC format, the image information is written into the memory device 5.

In step S7, it is determined whether or not the image information has been stored in the entire area of the memory device 5. If not stored in all areas, the process returns to step S6.

If it is stored in all areas, it is determined in step S8 whether or not it is the timing to send the training check signal TCF.
In step S9, image information is read from the memory device 5 and transmission is started. This reading is performed by moving the read pointer RP of the memory device 5 as described above with reference to FIG.

In step S10, it is determined whether 1.5 seconds have elapsed since the start of reading the image information. If not, the process returns to step S9.

If 1.5 seconds have elapsed since the start of the reading of the image information, it is determined in step S11 whether the reading of the image information has been completed for one line or one frame when the 1.5 seconds have elapsed. This determination is based on EOL, RTC or RC
This can be performed by detecting P (see FIG. 7) or an error check code arranged at the end of each frame.

If the reading of the image information has not been completed for one line or one frame, the process returns to step S9. If the reading of the image information has been completed for one line or one frame, the process proceeds to step S12.

In FIG. 7, although the RTC or RCP is drawn at the end of the line or frame detected 1.5 seconds after the image information reading is started,
In this case, the reading of the image information is stopped by detecting the RTC or the RCP added at the end of the frame n or after the frame n. Of course, 1.
If the EOL or the next frame is located at the end of the line or frame detected after the lapse of 5 seconds, the reading of the image information is performed by detecting the EOL or the end of the frame detected after the lapse of 1.5 seconds. Stopped.

In step S12, it is determined whether or not the CFR has been transmitted from the receiver, that is, whether or not the training has been successful based on the image information transmitted in step S9. This training method will be described later with reference to FIGS.

If training fails, i.e. CF from receiver
If FTT is transmitted instead of R, the transmission speed is changed in step S13, and the read pointer RP of the memory device 5 is reset in step S14. Thereafter, the process returns to step S8.

When the training is successful and the CFR is transmitted from the receiver, the read pointer RP of the memory device 5 is moved in step S23, and the image information is read from the memory device 5 and transmitted. The reading of the image information is performed in step S9 from the information next to the read image information.

In step S24, the image information is read, the write pointer WP is moved, and the image information converted into the HDLC format after coding or the coded image information is written into the memory device 5.

In step S25, it is determined whether or not there is still image information stored in the memory device 5. If there is image information, the process returns to step S23. If there is no image information, a predetermined protocol is exchanged, and the process ends. Thus, in steps S23 to S25, the memory device 5 functions as a FIFO memory.

Note that the processing of steps S23 and S24 may be performed in reverse order, and the processing of steps S23 and S24 may be performed simultaneously or asynchronously.

In step S2, the communication mode is unique TCF
If it is determined that the mode is not the mode, that is, the conventional mode in which a continuous “0” signal is transmitted as the TCF, the process proceeds to step S15.

In step S15, as in step S3,
It is determined whether the communication is performed in the G3 mode or the G3ECM mode.

If it is determined that the mode is the G3ECM, in step S16, the G3ECM mode is set as in step S4. If it is determined that it is G3, step S1
At 7, the G3 mode is set as in step S5.

Next, in step S18, similarly to step S8, it is determined whether or not it is the timing to send the training check signal TCF. If so, in step S19, a "0" signal is sent. .

In step S20, it is determined whether 1.5 seconds have elapsed since the transmission of the "0" signal was started. If not, the process returns to step S19.

If 1.5 seconds have elapsed, in step S21, as in step S12, whether or not the CFR has been transmitted from the receiver, that is, whether or not the training has been successful based on the continuous “0” signal transmitted in step S19 Is determined.

If training fails, i.e. FT from receiver
If T is transmitted, in step S22, the transmission rate is changed in the same manner as in step S13, and then the process returns to step S18.

If the training has been successful and the CFR has been transmitted from the receiver, the process proceeds to step S23.

FIG. 1 is a functional block diagram of a facsimile apparatus (transmitter) that performs the operation shown in FIG. 1, the same reference numerals as those in FIG. 5 denote the same or equivalent parts.

In FIG. 1, a scanner 1 is a coder (encoding circuit).
2, the coder 2 sends the HDLC format creation means 3
The HDLC format creation means 3 is connected to the memory device 5. The scanner control means 4 controls the scanner 1, the coder 2, and the HDLC format creation means 3.

The coder 2 is energized in response to a signal for determining an encoding scheme added to the NSS transmitted from the NSS transmitting means 14 described later.

The HDLC format creation means 3 includes an NSS transmission means 14
Is activated when a signal for determining the G3ECM is added to the NSS transmitted by. When the signal determining G3 is added to the NSS, the signal is not activated. In this case, the data coded by the coder 2 is directly output to the memory device 5.

Data input / output of the memory device 5 is controlled by the memory control means 6.

The memory control means 6 comprises a write start setting means 61, a read start setting means 62, a read pointer reset means 63, and a read stop means 64. The writing start setting means 61 moves the write pointer WP and writes the image information output from the HDLC format creation means 3 or the coder 2 into the memory device 5. The read start setting means 62
Moves the read pointer RP and reads the image information stored in the memory device 5. The read pointer reset means 63 returns the read pointer RP to the initial address position. In this case, data read / write is not performed. The read stop means 64 is a read start setting means.
The read operation performed by 62 is stopped.

The memory device 5 is a modem 11 and the modem 11 is an NCU 12
The NCU 12 is connected to a line.

The NSS sending means 14 adds signals for setting various communication modes to the NSS, and sends them to the line via the modem 11 and the NCU 12. Among the above signals, a signal for determining a coding method is determined by the coder 2, a signal for determining G3 / G3ECM is determined by the HDLC format creation means 3, a signal for setting the unique TCF mode is determined by the mode determination means 16, and a communication speed is determined. Are input to the communication speed setting means 13, respectively.

The communication speed setting means 13 determines the communication speed according to the signal output from the NSS transmission means 14, and energizes the modem 11.

The mode determining means 16 determines whether or not the mode is the unique TCF mode according to the signal output from the NSS transmitting means 14. If the mode is not the unique TCF mode (the mode is the normal mode), the TCF transmitting means 15 and the switching means 18 configured to be normally closed are energized. The TCF sending means 15 sends out a continuous "0" signal for 1.5 seconds by this urging. The switching means 18 is opened by the bias.

When the communication mode is determined by the various signals output from the NSS transmission means 14, the scanner control means 4 and the memory control means 6 are energized, and the original is read and coded image information or coded HDLC is read. The formatted image information is stored in the memory device 5. This storage is performed at least when the communication is performed at the maximum transmission speed until the image information is stored in an amount corresponding to the image information amount when the image information is transmitted for 1.5 seconds or more. .

When the receiver receives a continuous "0" signal for 1.5 seconds as the TCF, as described later with reference to FIGS. 2 and 4, it receives CFR if the line is good, and if the line is bad, F
Send TT.

The CFR / FTT determination means 17 determines this CFR or FTT, and
In this case, the communication speed setting means 13 is activated to change the communication speed. In this case, the communication mode is the normal TCF mode, and the switching means 18 is open, so that the timer means 9 and the memory control means 6 are not energized.

When the communication speed is changed, from the TCF sending means 15,
A continuous "0" signal is again transmitted for 1.5 seconds.

When the mode determination unit 16 determines that the mode is the unique TCF mode, the read start setting unit 62 is activated, and the image information stored in the memory device 5 is read.
Sent to the line. When the reading is started, the timer means 9 starts measuring a predetermined time (1.5 seconds).

When the timer means 9 completes the measurement for 1.5 seconds, a signal to that effect is outputted to one input terminal of the line / frame discriminating means 8 and the AND gate 10.

When the communication mode is G3, the line / frame discriminating means 8 determines whether the end of one line or EOL or RTC
Is detected, and 1 is set when the communication mode is the G3ECM mode.
Detects end of frame or RCP. This detection signal is input to the other input terminal of the AND gate 10, and as a result, the read stop means 64 is activated, and the reading of the memory device 5 is stopped.

If the communication mode is the unique TCF mode, the receiver determines whether the line is good or not based on the image information by a method described later with reference to FIGS.
Or, send FTT.

When FTT is detected by the CFR / FTT discriminating means 17, the communication speed setting means 13 is activated to change the communication speed.
Further, the read pointer reset means 63 is activated to reset the read pointer RP of the memory device 5, and the read start setting means 62 is further activated to read the image information again from the memory device 5 and send it out. At the time of this reading, the timer means 9 is activated. The reading is stopped when the timer unit 9 detects a predetermined time and the line / frame discriminating unit 8 detects a line or a frame, or EOL, RTC or RCP.

When the CFR is detected by the CFR / FTT discriminating means 17, the write start setting means 61 and the read start setting means 62 are energized, and the image information is read out and transmitted from the memory device 5, and the image information is transmitted to the memory device 5. The storage is performed.

When the transmission of the image information to be read by the scanner 1 is completely completed via the memory device 5, various commands are transmitted / received by means (not shown), and the process is thereafter terminated.

FIG. 4 is a flowchart showing the operation of the facsimile receiver among the operations of the embodiment of the present invention.

In FIG. 4, first, in step S31, after transmission of NSF or the like is performed, it is determined whether a command of NSS or the like has been received.

In step S32, various communication modes are determined by the command.

In step S33, it is determined whether the mode is the unique TCF mode. If the mode is the unique TCF mode, it is determined in step S34 whether the mode is the G3ECM mode.

If the mode is the G3ECM mode, in step S35 HDLC
If the CRC checker (reference numeral 26 in FIG. 2) is in the G3 mode, the decoder (reference numeral 27 in FIG. 2) is selected in step S36.

In step S37, image information is received as TCF. This image information is stored in the memory device (reference numeral 5 in FIG. 2).

In step S38, whether the line is determined to be good by the HDLC / CRC checker or the decoder,
That is, it is determined whether the training is successful.
This line state determination method will be described later with reference to FIG.

If the line is determined to be bad, step S3
At 9, the contents of the memory device are cleared and an FTT is sent out at step S40. Then, the process returns to step S31.

If it is determined in step S33 that the mode is not the unique TCF mode, in step S41, a "0" TCF signal for 1.5 seconds is received.

In step S42, it is determined whether the training is successful. If the training has failed, the FTT is transmitted in step S47, and the process returns to step S31.

If it is determined in step S38 or S42 that the training was successful, the CFR
Is sent.

In step S44, printing is started based on the contents stored in the memory device.

In step S45, reception to the memory device is continued.

In step S46, it is determined whether or not the reception has been completed. If the reception has been completed, the process ends.

FIG. 2 is a functional block diagram of a facsimile apparatus (receiver) that performs the operation shown in FIG. 2, the same reference numerals as those in FIGS. 1 and 5 denote the same or equivalent parts.

In FIG. 2, a command such as NSS transmitted from a transmitter is transmitted to a mode determination unit 2 via an NCU 12 and a modem 11.
Entered into 1. The mode determining means 21 activates the switching means 22, 23, 24 and the HDLC format release means 30 according to the determined various communication modes.

That is, when the communication mode is not the unique TCF mode, the modem 11 is first connected to the TCF discriminating means 25 that performs a training check by a continuous “0” signal. When the communication mode is the unique TCF mode and the G3 mode is set, the modem 11 is connected to the decoder 27 and the memory device 5,
In G3ECM mode, connect modem 11 to HDLC / CRC checker.
It is connected to the memory device 5 via 26.

Further, when the mode is the G3ECM mode, the HDLC format release unit 30 is activated.

If the mode is not the unique TCF mode, a training check is performed in the TCF determining means 25 using the TCF of the continuous “0” signal transmitted from the transmitter, and the result is referred to as CFR /
Output to FTT transmission means 29. If the training fails, the FTT is sent to the transmitter via the modem 11 and the NCU 12 to the line, and a continuous “0” TCF signal is received again.

When the training success is determined by the TCF determining means 25, the CFR is transmitted from the CFR / FTT transmitting means 29 to the transmitter. By sending this CFR, the switching means 22, 23, 24
Is controlled, and the modem 11 is connected to the memory device 5. In this case, when the communication mode is the G3ECM mode, the modem 11 is connected to the HDLC format release means 30, and when the communication mode is the G3 mode, the modem 11 is connected to the decoder 31.
Alternatively, they may be directly connected.

The transmission of the CFR activates the printer control means 33, and the HDLC format release means 30, the decoder 31, and the printer 32 are activated.

With the transmission of the CFR, image information is transmitted from the transmitter and stored in the memory device 5. And the image information is HDLC
The data is transferred to the format canceling means 30 or the decoder 31, and then recorded in the printer 32.

When the communication is in the unique TCF mode, the image information sent from the transmitter as the TCF is transferred to the HDLC / CRC checker 26 or the decoder 27 and the memory device 5.

The HDLC / CRC checker 26 performs a CRC check on the HDLC-formatted image information for each frame.
The training discriminating means 28 includes the HDLC / CRC checker 26.
It is determined whether or not the training has succeeded according to whether or not the CRC checker of each frame has succeeded.

The decoder 27 decodes the coded image information. The training discriminating means 28 determines whether or not the training has been successfully performed, depending on whether or not the decoding has been successfully performed. That is, when decoding is not performed well, that is, when a bit shift occurs, it is determined that the line is defective and noise is mixed in the image information.

If the training discriminating means 28 determines that the training has failed, the contents of the memory device 5 are cleared, and the CFR / FTT transmitting means 29 is activated to transmit the FTT to the line.

If training is determined to be successful, CFR / FT
The CFR is sent from the T sending means 29 and the printer control means
33 is energized, and the image information stored in the memory device 5 is recorded in the printer 32. In this case, the image information is read from the memory device 5 and the image information received thereafter is sequentially stored in the memory device 5.

When the training is performed by the decoder 27, the switching means 24 is activated by the training success determination, and the modem 11 is directly connected to the memory device 5.

The facsimile apparatus shown in FIG. 2 does not have the memory control means 6 shown in FIG. Therefore, it can be said that the memory device 5 shown in FIG. 2 has only the function of the FIFO memory.

In FIG. 2, 2 shown by reference numerals 27 and 31
Although it has been described that one decoder is provided, the decoder 27 used at the time of the training check is used as the decoder 31 at the time of printing image information, and
Only one may be provided.

FIG. 8 is a functional block diagram of another embodiment (transmitter) of the present invention. In FIG. 8, the same reference numerals as those in FIG.
Since the same or equivalent parts are shown, the description is omitted.

In FIG. 8, the memory device 5A is the same as that shown in FIG.
Ring buffer with FIFO function (memory device 5)
Rather, it is simply composed of RAM. The connection between the memory device 5A and the HDLC format creation means 3 is established by the switching means 42, and the connection between the memory
Are connected by the switching means 43.

Storage of image information in the memory device 5A, and a memory device
Reading of image information from 5A is controlled by the address counter 41.

Control of the switching means 42 and 43 is performed by a switching means 44.

In this example, the switching means 42 and 43
As shown, the initial state of the memory device 5A and the HD
It is set to connect the LC format creation means 3 and the modem 11.

Now, in this embodiment, first, the NSS transmitting means 14
When a signal designating the unique TCF mode is added to the NSS, the scanner control means 4, the address counter 41, and the memory device 5A are activated, and the image information is stored in the memory device 5A.

After the communication speed is determined by the communication speed setting means 13,
The address counter 41 is energized by the unique TCF mode determination signal output from the mode determination means 16, and the read addresses are sequentially output to the memory device 5A.
Reading and transmission of the image information stored in 5A is started. At this time, the timer means 9 is activated.

When a predetermined time is measured by the timer means 9 and a line terminal, a frame terminal or the like is detected by the line / frame discriminating means 8, the output of the address by the address counter 41 is stopped, and the reading of the image information is stopped. .

When FTT is detected by the CFR / FTT discriminating means 17, the address of the address counter 41 is reset, and the address counter 41 is re-energized.
More image information is output.

When the CFR is detected by the CFR / FTT determining means 17, the address counter 41 is activated, and the remaining image information stored in the memory device 5A is read.

When reading of all image information in the memory device 5A is completed,
A signal to that effect is output from the address counter 41 to the switching means 44, and the switching means 42 and 43 are energized. As a result, the HDLC format creation means 3 and the modem 11 are directly connected.

Then, the scanner control means 4 is energized, and the scanner 1
Thus, the reading of the image information is continuously performed. That is, the image information is read from the image information next to the image information stored in the memory device 5A, and is output to the line.

If a signal designating the unique TCF mode has not been added to the NSS by the NSS transmitting means 14, the image information is not stored in the memory device 5A, and a continuous "0" is output from the TCF transmitting means 15 as the TCF signal. Is output as In this case, the switching means 44 is also activated, and the HDLC format creation means 3 and the modem 11 are directly connected.

When the CFR / FTT determination means 17 detects the CFR,
The scanner control means 4 is energized to start reading and sending image information.

Thus, as a memory device used for the transmitter,
Simple RAM can be used.

Memory device used in the receiver (reference numeral 5 in FIG. 2)
Also, such a RAM can be used. In this case, a switching unit similar to the switching units 42 and 43 is provided at the data input terminal and the data output terminal of the memory device 5 to determine whether the communication mode is the unique TCF mode and to determine whether the communication mode is the unique TCF mode. In this case, the switching of the switching means may be controlled in accordance with whether or not all the image information stored in the memory device 5 has been read.

In the description relating to FIG.
Measured 1.5 seconds, but when 1.5 seconds have elapsed, if a line or frame is being read, the reading is continuously performed until transmission of one line or one frame is completed. In order to suppress the transmission of the TCF signal to 1.5 seconds or less, the measurement time of the timer means 9 may be set to less than 1.5 seconds.

(Effects of the Invention) As is clear from the above description, according to the present invention, the following effects are achieved.

That is, the TCF signal is not a continuous “0” signal,
Since the image information can be used, the time required for the communication can be reduced by about 1.5 seconds.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a facsimile apparatus (transmitter) that performs the operation shown in FIG. FIG. 2 is a functional block diagram of a facsimile apparatus (receiver) that performs the operation shown in FIG. FIG. 3 is a flowchart showing the operation of the facsimile transmitter in the operation of the embodiment of the present invention. FIG. 4 is a flowchart showing the operation of the facsimile receiver among the operations of the embodiment of the present invention. FIG. 5 is a schematic block diagram of one embodiment of the present invention. FIG. 6 is a virtual schematic diagram showing the configuration of the memory device 5 shown in FIGS. FIG. 7 is a schematic diagram showing the data format of G3 and G3ECM. FIG. 8 is a functional block diagram of another embodiment (transmitter) of the present invention. Fig. 9 shows G3 from connection of line to transmission of image information.
FIG. 2 is a schematic diagram showing a protocol of the facsimile machine. 1 ... Scanner 2 ... Coder 3 ... HDLC format creation means 5,5A ... Memory device 6 ... Memory control means 8 ... Line / frame discriminating means 9 ... Timer means 10 … And gate, 11… modem, 12 …… NCU, 1
4 ... NSS sending means, 16 ... Mode discriminating means, 17 ... CFR /
FTT discriminating means, 21 ... Mode determining means, 26 ... HDLC / CRC
Checker, 27, 31 ... decoder, 28 ... training discriminating means, 29 ... CFR / FTT sending means, 30 ... HDLC format releasing means, 32 ... printer, 100 ... system unit

Claims (3)

(57) [Claims] 1. A memory device for storing image information; a non-standard function setting signal NSS transmitting means for adding a signal specifying a unique mode to a non-standard function setting signal NSS to be transmitted; Means for reading image information from a document by a signal and recording the image information in the memory device; and reading and transmitting the image information stored in the memory device at a transmission timing of a training check signal TCF according to a signal designating the unique mode. A facsimile apparatus comprising: means for stopping reading of the image information for a predetermined time or more and at the end of reading of a line or a frame. 2. A memory device for storing image information; mode determining means for determining whether a signal designating a unique mode is added to the received non-standard function setting signal NSS; Means for recording, in the memory device, image information transmitted as a training check signal TCF when a signal designating a unique mode is added to the setting signal NSS; and decoding image information transmitted as a training check signal TCF. And / or an HDLC / CRC checker that performs a CRC check on the image information, and decoding of the image information performed by the decoder, or
A facsimile apparatus comprising: means for, when the CRC of image information performed by the HDLC / CRC checker is successful, determining that the training is successful and recording the image information stored in the memory device. 3. A memory device for storing image information; a non-standard function setting signal NSS transmitting means for adding a signal specifying a unique mode to a non-standard function setting signal NSS to be transmitted; Means for reading image information from a document by a signal and recording the image information in the memory device; and reading and transmitting the image information stored in the memory device at a transmission timing of a training check signal TCF by a signal designating the unique mode. Means for stopping reading of the image information for a predetermined time or more and at the end of reading of a line or a frame, and whether a signal specifying a unique mode is added to the received non-standard function setting signal NSS. Mode determining means for determining whether or not a unique mode is added to the received non-standard function setting signal NSS. In this case, means for recording the image information transmitted as the training check signal TCF in the memory device, a decoder for encoding the image information transmitted as the training check signal TCF, and performing a CRC check on the image information At least one of an HDLC / CRC checker and decoding of image information performed by the decoder, or
A facsimile apparatus comprising: means for, when the CRC of image information performed by the HDLC / CRC checker is successful, determining that the training is successful and recording the image information stored in the memory device.