JPH01114264A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent the generation of a communication error by informing an opposite unit that the recording paper of a B4 size is set irrespective of the size of the recording paper which is set at present by means of an initial identification signal and reduction-recording picture information when the opposite unit transmits picture information by the B4 size and the recording paper of an A4 size is set. CONSTITUTION:At the time of communication by using a facsimile communication network, a control circuit 40 informs the opposite unit that the recording paper of the B4 size is set irrespective of the size of the recording paper which is set at present, and reduction-records picture information when the opposite unit transmits picture information by the B4 size and the recording paper of the A4 size is set. Thus, the generation of communication error can be prevented even if the registeration size and the original size of an originating side terminal are B4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device that has a B4 size contract for a facsimile communication network.

[Prior Art] Conventional facsimile communication networks did not handle documents larger than A4 size, but as a result of the expansion of facsimile communication network services from February 20, 1987, the sending side facsimile machine If both facsimile machines on the receiving side are capable of transmitting and receiving 84-size documents, it is now possible to transmit and receive 34-size documents using a facsimile communication network.

Conventional facsimile machines that can accommodate A4-size recording paper and 34-size recording paper can be used both when communicating using a telephone network and when communicating using a facsimile communication network. The identification signal notifies the other party of the currently set recording paper size.

When communicating using a telephone network, if the other party's document is 34 size and the recording paper on this side is 34 size,
4-size transmission is performed, and the original on the other side is 34 size,
If the recording paper on this side is A4 size, B4→A4
If the document on the other side is A4 size and the recording paper on the other side is A4 size or 34 size, A4 same size transmission is performed.

Also, when communicating using a facsimile communication network when 34 size paper is not available, the recording paper on this side is A4 size.
or 34 size, and if the other party's original is 34 size, it will be reduced from B4 to A4 and transmitted, and if the other party's original is A4 size, it will be transmitted at the same size as A4. do.

In other words, when communicating using a facsimile communication network that did not have B4 service, the 17th bit information (maximum document width B4 or not) is received, or it is ignored and regarded as 0.

Now, let us consider a case where a facsimile machine capable of setting A4 size recording paper and 34 size recording paper joins a facsimile communication network under a B4 service contract.

Figure 3 shows a conventional facsimile machine in which A4 size recording paper and 34 size recording paper can be set.
FIG. 7 is a diagram showing transmission according to registered size, document size, and recording paper size when a user subscribes to a facsimile communication network through a service contract.

"Problems to be Solved by the Invention" In the conventional device described above, when communicating using a facsimile communication network, the registered size of the calling side terminal and the document size are both B4, and the registered size of the receiving side terminal is B4. However, if the recording paper size of the receiving terminal is A4, there is a problem that communication errors may occur.

[Means for Solving the Problems] The present invention is a facsimile device that can set A4-size recording paper and 34-size recording paper, and is capable of being used as a 34-size registered terminal in a facsimile communication network under a B4 service contract. When communicating using a facsimile communication network, a facsimile machine contracted with Yahoo! Japan uses an initial identification signal to indicate that 34-size paper is set, regardless of the paper size currently set. When the other party transmits image information in 34 size and A4 size recording paper is set, the image information is reduced and recorded.

[Function] The present invention is capable of transmitting 3-3 times regardless of the currently set recording paper size when communicating using a facsimile communication network.
The initial identification signal notifies the other machine that 4-size recording paper is set, and when the other machine transmits image information in 34-size paper and A4-size recording paper is set. Since image information is recorded in a reduced size, even if the registered size and document size of the calling side terminal are B4, the registered size of the called side terminal is B4, and the recording paper size of the called side terminal is A4, a communication error will occur. Does not cause

[Example] FIG. 1 is a block diagram showing one embodiment of the present invention.

The terminal in this embodiment is a second type connection terminal.

"The facsimile machine of the second embodiment can set A4 size recording paper and 34 size recording paper, and
It is assumed that the user has entered into a 4-service contract with a facsimile communication network as a 34-format registered terminal.

In order to use the telephone network for data communication, etc., the NCU (network control unit) 2 connects to the terminal of the line, controls the connection of the telephone exchange network, switches to the data communication path, and controls the loop. It is used to maintain the Also, N
The CU 2 connects the telephone line 2a to the telephone 4 side and the facsimile machine side (the right side of the NCU 2 in FIG. 1), respectively, when the signal level from the control circuit 40 is Oll. Under normal conditions, the telephone line 2a is connected to the telephone 4 side. In addition, NCU2 is 16Hz
control circuit 40 only when detecting the calling signal of
This outputs a level 1 signal.

The hybrid circuit 6 separates the transmission system signal and the reception system signal, sends the transmission signal from the adder circuit 20 to the telephone line 2a via the NCU 2, and transmits the signal from the other party to the NCU 2.
The signal is sent via the V29 demodulator 22) to the V21 demodulator 30 and tonal signal receiving circuit 32.

The reading circuit 8 sequentially reads image signals for one line in the main scanning direction from the transmission document and creates a signal string representing binary values of white and black. It consists of a system. The encoding circuit 12 encodes read data (MH (Modified Huffman) encoding or MR (Modified Read) encoding).

The reduction circuit 10 inputs the data from the reading circuit 8, and
This circuit reduces A4 information to A4 information.

The V 27 ter or V 29 modulator 14 is a known C
CITT recommendation V27ter (differential phase modulation) or V2
9 (orthogonal modulation).

The V21 modulator 16 is a modulator that performs modulation based on the well-known CCITT recommendation V21, and modulates the procedure signal from the control circuit 40. The tonal signal transmitting circuit 18 receives signals from the control circuit 40 at 1.2.3.4.5.
, respectively, 462Hz, 1090Hz, 16
It outputs tonal signals of 50 Hz, 1850 Hz, and 2100 Hz, and when the signal from the control circuit 40 is 0, nothing is sent out.

The adding circuit 20 is a circuit that adds the outputs of the modulators 14 and 16 and the tonal signal transmitting circuit 18.

The V27ter or V29 demodulator 22 is a known CCI
Demodulation is performed based on TT recommendation V27ter or V29. The decoding circuit 24 is a circuit that decodes demodulated data from the demodulator 22 (MH decoding or MR decoding).

The reduction circuit 26 inputs the signal from the decoding circuit 24,
This is a circuit that reduces B4 information to A4 information.

When the recording circuit 28 receives a level O signal from the control circuit 40, it sequentially records a black and white signal line by line based on the decoded data, and also receives a level 1 signal from the control circuit 40. This circuit sequentially records black and white signals line by line based on the reduced data output by the reduction circuit 26 when receiving the data.

The V21 demodulator 30 performs demodulation based on the known CCITT recommendation V21. The tonal signal receiving circuit 32 receives 462Hz, 1090Hz, 1300Hz, 1
1.2.3.4 when detecting 1-null signals of 650Hz, 1850Hz, and 2100Hz, respectively.
．． 5.6 and outputs O when no tonal signal is detected.
This is a circuit that outputs .

The manual/automatic call receiving mode detection circuit 34 detects whether the manual call receiving mode or automatic call receiving mode is set, and outputs Oll when the manual call receiving mode or automatic call receiving mode is set, respectively. It is something to do.

The recording paper size detection circuit 36 is a circuit that detects whether the set recording paper is A4 size or 84 size, and if A4 size or 84 size recording paper is set. , each outputs a signal at level O71.

The original size detection circuit 38 detects that the set original is A.
This is a circuit that detects whether it is a 4-size or 84-size original, and outputs level 0 and ■ signals if an A4-size or 84-size original is set, respectively.

In the case of communication using a telephone network, the control circuit 40
will inform the other party of the currently set paper size, and in the case of communication using a facsimile communication network,
Regardless of the size of the set recording paper, the DIS informs the other party that 34-size recording paper is set.

Then, the control circuit 40 controls when 34 size recording paper is set or when the other party transmits A4 size information.
When A4 size recording paper is set, the transmitted information is recorded at the same size. In addition, the above A
4 format information is information that one line of information in the main scanning direction is 1728 bits (specifically, 1 line of information in the DOS PIF).
(information with 7 bits set to O).

In addition, the control circuit 40 transmits 34-format information from the other party,
When A4 size recording paper is set, the transmitted B4 information is reduced to A4 information and the recording is controlled. The above-mentioned 34-format information is information that the information for one line in the main scanning direction is 2048 bits (specifically, the information in which the 17th bit of the DOS PIF is set to 1).

Next, the operation of the above embodiment will be explained.

FIGS. 2(1), (2), (3), and (4) are flowcharts showing the control operation of the control circuit 40 in the above embodiment.

First, the control circuit 40 outputs a level O signal to the NCU 2 to turn off the CML (552), and determines whether a facsimile call signal is detected (1300H output from the NCU 2).
whether the signal related to z is 1 or not) (S 5
4). This facsimile ringing signal is detected, and if it is the automatic call reception mode (if the signal from the mode detection circuit 34 is 1) (356), it is determined whether the 16Hz ringing signal is detected (from the NCU 2 to the control circuit 40). The next 16Hz signal is 1 (S58).

If a 16Hz ringing signal is detected, turn on the CMI, set timer 1 to 2 seconds, and timer 2 to 0.75 seconds.S60, S62.564), 1300Hz
whether or not the signal is detected (tonal signal receiving circuit 3
The control circuit 40 determines whether the signal from 2 is 3 (366). If a 1300Hz signal is detected and timer 2 times out (that is, if 1300Hz is detected for 0.75 seconds continuously) (S68), control circuit 4
0 outputs signal 5 to the tonal signal sending circuit 18 and transmits a called station identification signal (570), 75m5 waits (572), control circuit 40
transmits an initial identification signal to the V21 modulator 16 (S74
).

In this case, since communication is using a facsimile communication network, the 17th bit of the DIS PIF is set to 1, regardless of the currently set recording paper size, and 34-size recording paper is set. Tell the other party that you are on the other side.

Then, the remaining pre-procedures are executed (376), and the recording paper size is determined based on the signal from the recording paper size detection circuit 36 (578). If the recording paper size is B4, V21
Check the DOS based on the procedure signal from the demodulator 30,
If the 17 bits of the DOS FIF are 1 (B4), then (S
80), and receive both signals at B4 equal magnification (S82). Then, a post-procedure is performed (S92).

On the other hand, if the 17 bits of the DOS PIF are 0 (A4), the image signal is received at the same size as A4 (S84).

The recording paper size is A4 (S78), and the DOS FIF
If the 17 bits are O (386), the information from the other party is A4 size information, so the image signal is received at A4 size (388).

In H.386, if the 17 bit is 1, the information transmitted from the other party is B4 information, so the B4 information is converted to A4.
The image signal is reduced to information and an image signal is received (S90). In this case, the present facsimile machine performs the above reduction.

This makes it possible to prevent communication errors that conventionally occur when the document size is B4 and the recording paper size is A4.

Note that when a facsimile call signal is detected in S54, the CML is turned on (S94) and the process proceeds to S70. If no facsimile calling signal is detected, the incoming call mode is manual (S54.356), and facsimile communication is not selected (S96), the process returns to S54. Further, if 1300 Hz is not detected in S66, timer 2 is set to 0.75 seconds (598), and a timeout of timer 1 is detected (S100).

If no facsimile ringing signal is detected, the mode is manual reception mode, and facsimile communication is selected (S54, S56
．． 596), turns on CML, sets 2 seconds in timer 1, and sets 0.75 seconds in timer 2 (S102.
5104.51o6). Then, 1300Hz was detected, but it continued to 1300Hz for 75 seconds as set in timer 2.
When 00H2 is not detected (S108.5ilo)
, if the two seconds set in timer 1 have elapsed and the original is set (S114.5116), that is, if it is in the transmission mode, the initial identification signal is received, the remaining pre-procedures are executed, and both signals are sent. Send and execute post-procedures (S118.5
120.5122.5124).

On the other hand, in 8116, if the transmission original is not set (not in transmission mode) and the recording paper size is A4 (S126
), set the 17 bits of the FIF of the DIS to 0 and transmit the initial identification signal (S128), execute the remaining pre-procedures, and receive the image signal (this facsimile machine does not reduce it).
Execute post-procedure (S 130.5132) S 134
). If the recording paper size is B4 in 5126, D
The 17 bits of the IS PIF are set to 1 and an initial identification signal is transmitted (3136).

On the other hand, no 1300Hz signal was detected in S66,
After the 2 seconds set in timer 1 have elapsed (stoo)
, transmits the called station identification signal and waits for 75 ms.
38.5L40), determine the recording paper size (S14
2). Here, if the recording paper size is A4, 17 bits of PIF of DIS are set to 0 and an initial identification signal is transmitted (S144). If the recording paper size is B4, set 17 bits of PIF in DIS to transmit the initial identification signal (3146), execute the remaining pre-procedures, transmit both signals, and perform post-procedures (S148). .5150.5152
). Note that when transmitting the image signal in 5150, the present facsimile apparatus does not perform reduction when receiving both signals.

The present invention can also be applied to a facsimile machine in which a plurality of recording sheets can be set at the same time. For example, A4,
When both B4-size recording sheets can be set at the same time, when communicating using a facsimile communication network, an initial identification signal is used to inform the other party that 34-size recording paper is set. In this case, if you run out of B4 size recording paper and are communicating using the telephone network, tell them that you have A4 size recording paper set.
When using a facsimile communication network, tell the user that B4 size recording paper is set.

[Effects of the Invention] According to the present invention, there is provided a facsimile device in which A4 size recording paper and B1 size recording paper can be set,
In a facsimile machine contracted to a facsimile communication network as an 84-size registered terminal under a B4 service contract, the registered size and document size of the calling side terminal are both B4, the registered size of the called side terminal is B4, and the record of the called side terminal is Even if the paper size is A4, it has the effect of not causing communication errors.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment in which the present invention is applied to a facsimile machine. FIGS. 2(1), (2), (3), and (4) are flowcharts showing the control operation of the control circuit 40 in the above embodiment. Figure 3 shows that when a conventional facsimile machine that can set A4-size recording paper and 34-size recording paper joins a facsimile communication network with a B4 service contract, the registered size, original size, and recording paper size are changed. FIG. 3 is a diagram showing transmission according to the embodiment. 2...NCU, 4...Telephone, 10.22...Reduction circuit, 34...Manual/automatic incoming call mode detection circuit, 36...
Recording paper size detection circuit, 38... Original size detection circuit, 40... Control circuit. Patent applicant Canon Co., Ltd. Agent Arata Yokubo - Figure 2 (4) □ Figure 3 Calling side Calling side Calling side
Called party's review? 11P (helmet; jl
“Transfer A40 0 0 0B40
0 0 1 A4 lead A40 0 0 0B2O001 A40 0 0 0A4
B4→A
4B4O001→v A40 0 0 0B2O001 A40 1 0 0B2O1
01 A4 o 1 o o A4 range QB2O101 A4110OB4→A4 B41101GJ-i

Claims (2)

[Claims] (1) A facsimile device that can set A4-size recording paper and B4-size recording paper, and that has a contract with a facsimile communication network as a B4-size registered terminal under a B4 service contract, When communicating using this service, an initial identification signal is used to inform the other party that B4 size recording paper is set, regardless of the currently set paper size, and the other party uses B4 size recording paper. A facsimile device that transmits information and records the image information in a reduced size when A4 size recording paper is set. (2) A facsimile apparatus according to claim 1, characterized in that when communicating using a telephone network, the currently set recording paper size is notified to the other party by an initial identification signal.