JPS62165471A - Data communication equipment - Google Patents

Abstract

PURPOSE:To select one of plural printers and to attain printing in a data communication equipment connecting plural printers to a receiver without connecting a selected key telephone number system or plural telephone lines by selecting one of plural printers connected to the receiver based on a printer discriminating signal inserted into an information signal sent from a transmitter. CONSTITUTION:A network control circuit 2 is connected between a telephone line 1 and a facsimile equipment 10 and the telephone set 3 is connected to the circuit 2. The circuit 2 is controlled based on a control signal outputted from a control circuit formed in the equipment 10 and the circuit 2 is connected to the telephone set 3 when the logical level of the control signal is '0' and connected to the equipment 10 when the logic level is '1'. Receiving data and transmitting data from/to the circuit 2 are demodulated and modulated respectively by a MODEM4 in the equipment 10. One of plural printers 12 is selected by a microprocessor in a control circuit 7 based on a control program 8 to record data obtained from the MODEM4. Thus, the data communication equipment can be simplified without using the key number system or plural telephone lines.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a data communication device.

[Prior Art] In current facsimile machines and the like, one recording device (printer) is usually provided for one document reading device, but multiple recording devices (printers) are provided for one document reading device. If one printer can be connected to the facsimile machine, the functions of the facsimile machine will increase by seven, making it very convenient for the user.

In this way, when a plurality of printers are connected, the following devices can be considered as the most popular devices. In other words, a control device called a facsimile controller is provided, multiple facsimile machines are connected to the controller, facsimile machines that are not in operation are selected by the controller, and the data is received by a dedicated printer connected to the selected facsimile machines. A device that prints data can be considered.

However, in this case, it is necessary to connect the controller to a representative telephone number system similar to that used in a telephone exchange, or to connect a plurality of telephone lines, which may lead to an increase in costs.

[Object of the invention 1 The present invention has been made in view of the above background.

In a data communication device that connects multiple printers to a receiver, data that allows one of the multiple printers to be selected and printed without using a representative telephone number system or connecting multiple telephone lines. The purpose is to provide a communication device.

[Embodiment of the Invention] FIG. 1 is a system diagram of a facsimile machine showing an embodiment of the present invention.

In FIG. 1, a telephone port 5fA1 and a facsimile machine l are shown.
Between O and 1. Network control circuit 2 is connected.

The telephone 3 is further connected to the network control circuit 2 . Network control circuit 2 is controlled based on a control signal obtained from control circuit 7 provided in facsimile machine 2110.

For example, when the control signal is at logic level 0, the telephone
is connected to the telephone 3, the logic level is 1, and the telephone line 1 is connected to the facsimile machine 10.
The reception data received from the telephone line 1 is supplied to the facsimile machine 1O, and the transmission data obtained from the facsimile machine 1O is controlled so as to be sent to the telephone line 1.

At the facsimile machine IO 1. A modulation/demodulation circuit (modem) 4 is connected between the network control circuit 2 and the control circuit 7, and demodulates received data and modulates transmitted data. The control circuit 7 is connected to the S'X document reading means 5 and an operation panel 11. By operating the operation panel 11, selection of the other party, reception display, etc. can be performed.

The control circuit 7 is composed of a microprocessor, and includes a memory (R) in which a control program is stored.
OM)8. Working and control memory (RAM)
9 and an image memory 15 are connected. A plurality of printers 12, which are recording means, are connected in parallel to the control circuit 7.

Which printer to operate among the plurality of printers 10 is determined according to identification data for printer designation inserted into the received data.

An example of data transmission/reception and printer selection in the facsimile machine configured as described above will be described with reference to the control flowcharts of FIGS. 2 and 3.

FIG. 2 shows an example of a control flowchart on the calling side,
FIG. 3 shows an example of a control flowchart on the called side.

Note that when describing these flowcharts, each flowchart for the calling side and the called side will be sequentially explained as data is transmitted and received.

First, on the calling side, after hearing the dial tone,
Dial the other party to send (S20.521),
As the dial means, a calling device built into a telephone or facsimile machine (in the case of FIG. 1, a dial operation key provided on the operation panel 11) can be used. If the call is made from a telephone, it is determined whether the ring tone calling the other party can be heard (322), and if the ring tone is not heard after a predetermined period of time (S23), the telephone line is cut off (S24).
).

In the case of automatic calling, the reception status of CED (called station identification signal) is determined at a predetermined time (525).

If the CHD is not received, wait for a predetermined time to elapse (526), and if the CHD is not received even after the predetermined time has elapsed, the telephone line is cut off (527).
, and waits for CHD reception until a predetermined period of time elapses.

In addition to determining the presence or absence of CHD reception, NSF from the called side
Check the reception of the DISC non-standard function setting signal) and the DISC digital identification signal (328), and if these signals are not received, cut off the telephone line (S29).
).

On the other hand, if the called side detects the ring tone and is in a state where it can be received, it sends CHD (S50.551
．． 552), and then starts a timer (S53).
), this timer is used to disconnect one line when communication cannot be established within a predetermined time.

After starting the timer, the called party sends an NSF containing a code indicating that multiple printers are connected.
and DIS is sent to the calling side (S54), and in response to this, the calling side checks the CHD reception status at 325.
Receipt of the NSF and DIS is confirmed at 328.

On the calling side, by analyzing the code in the user abbreviation part included in the NSF, if it is found that multiple printers are connected, the NSF response signal N
In the user abbreviation part of SS (non-standard function setting signal),
After inserting the already registered printer number (identification code), this NSS is sent to the called party.

A DO3 (digital command signal) is sent out (S30).

Following this, by sending a training signal and a TCP () training check signal) to the called party (3
31), and enters a state of waiting to receive a CFR (reception preparation confirmation signal) sent from the called side (332).

The called side receives the NSS and DC5 sent from the calling side (355), but if these signals cannot be received, the elapsed reception time is checked at 556, and even if a predetermined period of time has elapsed, , if these NSS and DC3 cannot be received, the telephone line is cut off (357).

Therefore, until a predetermined period of time has elapsed, it is in a state of waiting to receive NSS and DO5. When the reception status of NSS and DC3 is confirmed, the phase of the called side is adjusted using TCP sent from the calling side, and after the phase adjustment is completed, CFR is sent to the calling side (561). .

On the calling side, the reception status of this CFH is checked (332), and if the CFR cannot be received, the telephone line is cut off (333), but if the CFR is received, in addition to sending the training signal, A message signal is sent from the calling side (S34).

When the called side receives this message signal (3
62) The received data is printed out by analyzing the printer number of the user abbreviation in the NSS and sending the received data to the printer of the analysis result.

When the sending of the message signal for one document is completed, it is checked whether there is a next document to be sent, and if there is no document to be sent next, an EOP (procedure end signal) is sent to the called party. (335.degree. 336), and when there is a document to be sent to the primary source and the transmission mode is not changed, an MPS (multipage signal) is sent to the called side (340.343).

In addition, when changing the transmission mode, the ROM
(message end signal) is sent (341).

When the called party finishes receiving the message, the MPS
and waits to receive EOM (563, 570)
, when the EOM is received, it is assumed that the EOM has been received normally and an MCF (message confirmation signal) is sent to the called side.1 The calling side receives this MCF (342).
The process returns to step 328 and waits for receiving NSF and DIS.

When the called side receives an EOP (571)
, Assuming that this has been received normally, an MCF (message confirmation signal) is sent to the calling party (572).
When receiving CF, sends 20CN (line cutoff signal) and then cuts off the telephone line (S37, 338.539)
When the called side receives the DCN, it similarly cuts off the telephone line (S73, 374).

Now, when the called side receives MPS (363
), and if the reception was successful, the MC
F is sent out (S64), a training signal from the calling side is received (365), the phase is adjusted, and then the message reception standby state is resumed (362).

Therefore, if MPS reception is repeated after receiving a message, the message reception state will continue to be repeated in the same routine.

Note that when the called side receives the ROM, the MCF is sent (S75), and the process returns to the reception routine shown at 354.
NSF and DIS are sent again, and the same processing operations as described above are repeated.

On the other hand, at this time, when the calling side receives the above-mentioned MCF (344), it sends out a training signal t (S45).
), it enters the standby state for message sending. Therefore, when receiving this training signal, the called side will:
From 565, the message receiving state of 362, which is a receiving routine, is entered.

Note that if a plurality of printers are installed at locations far away from the main body of the facsimile machine, the received data can be immediately obtained even if the facsimile machine and other equipment are far away. Furthermore, from the calling side's point of view, simply by registering user abbreviation data, it is possible to easily select any printer from a plurality of installed printers.

Furthermore, the present invention is of course applicable not only to facsimile machines but also to other data communication devices that communicate character codes, numerical codes, and the like.

[Effects of the Invention] According to the present invention, in a data communication device that connects a plurality of printers to a receiver, the representative 1 can be selected from among the plurality of printers without using a call number system or connecting a plurality of telephone lines. This has the effect that one of them can be selected and printed.

[Brief explanation of drawings]

FIG. 1 is a system diagram of a facsimile machine showing one embodiment of the present invention. FIG. 2 is a flowchart on the calling side showing an example of a control procedure used in the facsimile machine. FIG. 3 is a diagram similarly showing an example of a control flowchart on the called side. 1...Telephone line, 2...Network control circuit, 3...Telephone, 7...Control circuit. 8...Control program storage memory. 10...Facsimile machine. 12...Printer, 15...Image memory.

Claims (1)

[Claims] One of the plurality of printers connected to the receiver is selected based on a printer identification signal inserted into the information signal sent by the transmitter, and the selected printer records the received data. A data communication device characterized by: