JPS5899833A - Communication terminal controlling system - Google Patents

Abstract

PURPOSE:To release a document storage area, and to receive the following document, by discriminating the fact that pringing is unavailable, when a fault occurred in a printer, in a communication controller, and immediately switching a document to be stored in a memory, to an external file, and outputting it. CONSTITUTION:To a system control unit SCU 1, a system common bus 2 is connected, and to the bus 2, a printer 10 is connected through a printer interface 9, and also a communication controller 11 is connected. On this controller 11, an interface part 14 which executes transmission and reception of data between the SCU 1 and a microprocessor 12 is provided, and a document from the SCU 1 and is discriminated. In this state, when a fault occurred in the printer 10 in the controller 11, it is discriminated that printing is unavailable, a document stored in an RAM 16 is outputted to an external file immediately, and a document storage area is released so that the following document can be received.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a communication terminal control system, and in particular to a control system within Teletelex that can receive the next document even if an abnormality occurs in the printer during communication. This is a document creation communication terminal device that performs document exchange and document creation in order to automatically transfer documents between memories of communication terminals.

As shown in Figure 1, Teletelex is equipped with a system control unit (SCU) that controls the entire device.
For the system common node 2 connected to the keyboard (KBD) 3, CRT display (CRT) 5. Floppy disk drive 7, printer (PRT)
10 and a communication control unit (CCU) 11 are connected directly or via a controller.

The system controller unit 1 is a microcomputer consisting of a microprocessor, RAM, and RO to control the entire teletelex system, and the keyboard 3 inputs commands to the system controller unit 1. or for typing documents.

The CRT display 5 is necessary for inputting and editing documents, the floppy disk drive 7 is an external storage device that stores created documents, and the printer 10 prints created and received documents. 1 Communication control device [11 is a device that sends and receives documents to and from a partner terminal according to a prescribed communication control procedure.

As shown in FIG. 2, the communication control device 11 includes an interface unit 14 connected to the system common bus 2 shown in FIG. 1, and a microprocessor 12 . It consists of ROM 15% RAM 16, and line interface 17. Furthermore, as shown in FIG. 3, the interface section 14 includes an output boat 14L input port for exchanging data between the system controller unit 1 and the communication control device 11.
Poe) 142. A status boat 143 and an interrupt request line 145 are provided.

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

When a call is received from the line, the communication control device 11 automatically responds and receives the document according to a prescribed communication control procedure. This control is carried out by the microcontroller in the communication control device [11].
The processor 12 sends the document received via the line interface 17 to the RA via the CCU common bus 13.
It is stored in a part of M16, that is, in the document storage area. When the document is stored in the RAM 1a, the microprocessor 12 of the communication control device 11 requests the system controller unit 1 to output the document by 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 KA communication control device 11 to output to the printer 10.

In this case, if an abnormality occurs in the printer 10 and printing is not possible, the received document is held in the eight M16 of the communication control device 11 because there is no output instruction from the system controller unit 1 to the printer 10. It ends up being left alone. Therefore, when the memory becomes full, even if there is a call from another communication terminal device, the primary terminal can only respond that it cannot receive the call. In this way, conventional teletelex communication such as data communication and facsimile communication.

If an abnormality occurs in the printer during automatic communication or while it is on standby and it becomes unable to print, it will not be possible to continue receiving the next document after the memory of the communication control device 11 becomes full, and the failure will be displayed and the reception will be interrupted. It is displayed as not possible.

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

In order to achieve the above object, the communication terminal control method of the present invention automatically outputs a received document to a printer after storing it in memory. When it is determined, the document stored in the memory is immediately outputted to an external file device to free up the document storage area.

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

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

First, after receiving and storing a document, the microprocessor 12 of the communication control device 11 sets a code in the input port 142 in step 21 of FIG. 4 to indicate that the received document exists. Next, in step 22, an interrupt request signal is sent to the interrupt line 145. Next, in step 23, data from the system controller unit 1 is received through the output port 141.

In step 24, the receiver determines whether the received data is a document output instruction, and if it is not a document output instruction, the process returns to step 23 and repeats the operation. if,
If the data is a document output instruction, the document stored in the RAM 16 is read out, set to the input port 142, and the system common bus 2 is read out.
(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 1a is released to prepare for reception of the primary document.

Note that the output port 141 of the interface section 14 shown in FIG. 3 is a port for setting data sent from the system controller unit 1 to the communication control device 11.

An input port 142 is a port for sending data such as documents from the communication control device 11 to the system controller l, and a status port 143 indicates whether data is present in the two ports 141 and 142. Furthermore, the interrupt 1jl 145 is a signal line for requesting an interrupt from the communication control device 11 to the system controller unit IK.

FIG. 5 shows a processing routine that is activated and started when the system controller unit 1 accepts 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 is present (step 32
). If there is no received document, branch to another routine and 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. , set this in the output port 141 of the interface section 14. Next, in step 34, the document sent from the input port 142 of the interface unit 14 is read into the buffer of the system controller unit l via the system common bus 2.

Next, the status of the printer 10 is checked to determine whether normal operation is possible (step 35), and if normal, the document is output from the system controller unit 1 to the printer 10 (step 36). Furthermore, if the printer is abnormal, the information is output from the system controller unit 1 to the floppy disk drive 7 and stored on the floppy disk.

Note that the document stored on the floppy disk is output to the printer by operating the file-to-printer utility program after the printer is normalized. In other words, after the printer is repaired, the operator inputs the program name of this program from the keyboard 3.
The operating system starts execution.

In addition, in FIG. 5, when the printer 10 is abnormal, K outputs the document to the 70-bit disk.
The present invention is not limited to this, and any external file device may be used.

As explained above, according to the present invention, in teletelex that performs automatic communication, even if an abnormality occurs in the printer and printing is not possible, the system controller unit gives an instruction to output the document, so the communication control device The area in which the received document was stored can then be freed and the next document can therefore be received. This makes it possible to realize a terminal device with good performance.

[Brief explanation of drawings]

FIG. 1 is an overall block diagram of a document creation communication terminal device that performs teletelex communication, 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 operation flowchart of a communication control device showing an embodiment of the invention, and FIG. 5 is an operation flowchart of a system controller unit showing an embodiment of the 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, ll:
Communication control device.

Claims (1)

[Claims] In a communication terminal device that stores a document received from a partner station in its memory and then automatically outputs the document to a printer, the document stored in the memory is output even if an abnormality occurs in the printer and printing is not possible. 1. A communication terminal control method, characterized in that the document is stored in an external file device and a document storage area of the memory is released.