JPS62540B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a document creation communication terminal device, and more particularly to a control system within a teletelephone system that allows the next document to be received even if an abnormality occurs in the printer during communication.

Teletelex is a document creation communication terminal device that exchanges documents and creates documents in order to automatically transfer documents between the memories of both communication terminals.

As shown in Fig. 1, the teletelephone is connected to a system common bus 2 connected to a system control unit SCU1 that controls the entire device, and a keyboard KBD3 and a CRT display.
CRT5, floppy disk drive 7,
Printer PRT10 and communication control unit CCU1
1 connected directly or via a controller.

The system controller unit 1 is a microcomputer consisting of a microprocessor, RAM, ROM, etc. in order to control the entire teletelex system, and the keyboard 3 inputs commands to the system controller unit 1. or for entering documents,
CRT display 5 is necessary for inputting and editing documents, floppy disk, etc.
The drive 7 is an external storage device that stores created documents, and the printer 10 stores created documents.
Communication control device 11 that prints received documents
is a device that sends and receives documents to and from a partner terminal according to prescribed communication control procedures.

As shown in FIG. 2, the communication control device 11 includes an interface section 14 connected to the system common bus 2 shown in FIG. 1, and a microprocessor 12, ROM 15, and RAM connected to the CCU common bus 13.
16, and a line interface 17. Furthermore, the interface section 14 includes a third
As shown in the figure, in order to exchange data between the system controller unit 1 and the communication control device 11, there are an output port 141, an input port 142, and a status port 143.
and an interrupt request line 145 are provided.

In the communication terminal device shown in FIGS. 1 to 3,
The operation when receiving a document from the partner station will be explained.

When a call is received from the line, the communication control device 11 automatically responds and receives a document according to a prescribed communication control procedure. This control is performed by the microprocessor 12 in the communication control device 11, and the document received by the line interface 17 is sent to a part of the RAM 16 via the CCU common bus 13.
That is, it is stored in the document storage area. When the document is stored in the RAM 16, the microprocessor 12 of the communication control device 11 requests the system controller unit 1 to output the document via an interrupt. In response to this request, the system controller unit 1 checks the status of the printer 10 and, if the printer 10 is normal, instructs the communication control device 11 to output to the printer 10.

In this case, if an abnormality occurs in the printer 10,
If printing is not possible, check the system controller
Since there is no output instruction from the unit 1 to the printer 10, the received document is sent to the communication control device 11.
It will remain held in RAM16.
Therefore, when the memory becomes full, the next time a call is received from another communication terminal, the only response that can be given is that it cannot be received. In this way, conventional data communication,
In teletelecommunications such as facsimile communication, if an abnormality occurs in the printer during automatic communication or during standby and the printer becomes unable to print, after the memory of the communication control device 11 becomes full, it will continue to print the next print. The document cannot be received, and a malfunction and unreceivable message are displayed.

An object of the present invention is to eliminate such conventional drawbacks by automatically emptying the memory of a communication control device and making it possible to receive the next document even if the printer is unable to print due to an abnormality. An object of the present invention is to provide a writing communication terminal device.

In order to achieve the above object, the text creation communication terminal device of the present invention includes a communication control device comprising a sending/receiving document storage section for storing documents sent to and received from a partner station, and sending/receiving control means for controlling the sending and receiving of documents; a printer that prints documents, created documents, etc. sent and received via the communication control device; a document creation information input means; and a document that is received by the communication control device and stored in the storage section is constantly sent out from the storage section. an external storage section capable of storing the sent document sent from the storage section; and an external storage section capable of storing the sent document sent from the storage section; when the printer is in a normal state, the sent document is transferred to the printer, and when the printer is in an abnormal state, , further comprising transfer/retransfer control means for transferring the sent document to the external storage section, and retransferring the sent document from the external storage section to the printer when the printer recovers from an abnormal state to a normal state. There are certain characteristics.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 4 is an operational flowchart of a communication control device showing an embodiment of the present invention, and FIG. 5 is an operational flowchart of a system controller unit showing an embodiment of the present invention.

First, after receiving and storing the document,
Microprocessor 12 of communication control device 11
In step 21 of FIG. 4, a code indicating the presence of a received document is sent to input port 1.
Set to 42. Next, in step 22, an interrupt request signal is sent to the interrupt line 145, and then in step 23, the system controller unit 1
through output port 141. In step 24, it is determined whether the received data is a document output instruction, and if the received data is not a document output instruction, step 2 is executed.
Return to step 3 and repeat the operation. If the data is a document output instruction, the document stored in the RAM 16 is read out, set in the input port 142, and sent to the system controller unit 1 via the system common bus 2 (step 25). In this case, the document is sent out in response to the output instruction regardless of whether the printer 10 is normal or not. In step 26, the document storage area in the RAM 16 is released to prepare for reception of the next document.

Note that an output port 141 of the interface section 14 shown in FIG. Control device 1
This is a port for sending data such as documents from 1 to the system controller 1, and the status port 143 is a status port that indicates whether or not there is data in the two ports 141 and 142. The interrupt line 145 is a signal line for requesting an interrupt from the communication control device 11 to the system controller unit 1.

FIG. 5 shows a processing routine that is activated and started when the system controller unit 1 receives an interrupt request from the communication control device 11.

First, when an interrupt request is accepted, the input port 142 of the communication control device 11 is read in step 31. Next, the contents of input port 142 are identified to determine whether a received document exists (step 32). If there is no received document, the routine branches to another routine to perform other processing, but if there is a received document, a document output instruction code is sent to the communication control device 11 in step 33. , output port 1 of interface section 14
Set this to 41. Next, in step 34, the document sent from the input port 142 of the interface section 14 is read into the buffer of the system controller unit 1 via the system common bus 2.

Next, the status of the printer 10 is checked to determine whether it can operate normally (step 35), and if it is normal, the system controller unit 1 outputs the document to the printer 10 (step 36). Also, if the printer is abnormal, the system controller unit 1 will
It is output to the disk drive 7 and stored on the floppy disk.

Note that the documents stored on the floppy disk are output to the printer by operating a file-to-printer utility program after the printer is normalized. That is, after repairing the printer, the operator inputs the program name of this program from the keyboard 3, and the operating system starts execution.

Further, in FIG. 5, when the printer 10 is abnormal, the document is output to a floppy disk, but the present invention is not limited to this, and any external file device may be used.

As explained above, according to the present invention, even when an abnormality occurs in the printer and printing is not possible in teletelecommunications that performs automatic communication, the system
Since the controller unit issues a document output instruction, the communication control device can free up the area in which the received document was stored, and can therefore receive the next document. This makes it possible to realize a terminal device with good performance.

[Brief explanation of the drawing]

Fig. 1 is an overall block diagram of a document creation communication terminal device that performs teletelecommunications, Fig. 2 is an internal block diagram of the communication control device in Fig. 1, and Fig. 3 is an internal block diagram of the interface section in Fig. 2. , FIG. 4 is an operational flowchart of a communication control device showing an embodiment of the present invention, and FIG. 5 is an operational flowchart of a system controller unit showing an embodiment of the present invention. 1: System controller unit, 2:
System common bus, 3: Keyboard, 4: Keyboard interface section, 6: CRT controller, 8: Floppy disk controller,
9: Printer controller, 10: Printer,
11...Communication control device.

Claims (1)

[Claims] 1. A communication control device comprising a sending/receiving document storage section for storing documents sent to and received from a partner station, and sending/receiving control means for controlling the sending and receiving of documents, and a communication control device that stores documents, created documents, etc. sent and received via the communication control device. A printer for printing, a document creation information input means, a document sending means capable of constantly sending out a document received by the communication control device and stored in the storage section from the storage section, and a sending document sent out from the storage section. When the printer is in a normal state, the sent document is transferred to the printer; when the printer is in an abnormal state, the sent document is transferred to the external storage section; 1. A document creation communication terminal device, comprising: transfer/retransfer control means for retransferring the sending document from the external storage section to the printer when the normal condition recovers from the abnormal state.