JPH0247077A - Pos terminal with journal only disk device - Google Patents

Abstract

PURPOSE:To perform suitable journal process by providing a control circuit for sorting printing data by a control command and feeding it to a receipt printer or a journal only disk device. CONSTITUTION:A control circuit 11 has a reception buffer 11A, a receipt print buffer 11B, a journal buffer 11C, temporarily stores data from a CPU 1 in the buffer 11A, then distributes them to the buffers 11B, 11C by a control com mand, and stores them. Since the buffer 11C has a capacity for storing 256 characters, it does not transfer data, the data of the buffer 11B is sequentially fed to a receipt printer 13 to be printed. When the buffer 11C stores the 256 characters, the data of the buffer 11C are transferred to a journal only FD device 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a POS terminal, and particularly to an output device that prints or writes output data to a disk.

[Conventional technology]

FIG. 4 is a schematic configuration diagram of a conventional POS terminal, with 1
is a CPU, 2 is a storage unit, and is connected to a printer controller 4A, R/J via a printer interface 3.
A printer 4B, a display device 6 via a display interface 5, and a keyboard 8 via a keyboard interface 7 are connected. 9
is a disk device.

The printer is usually an R/J printer that has both receipt and journal printing functions as described above.

[Problem to be solved by the invention]

A journal is a file for backup purposes, and is kept for a certain period of time, after which it is discarded. Storing journals is cumbersome to manage, and there is also a POS terminal that stores journals in the disk device 9 in order to save money.

However, when dealing with writing a journal to a disk device and printing a receipt to a printer, the program structure is significantly different, and the disk device is not only used for journals, but is also used for other data processing. Therefore, it is difficult for the CPU to process data.

SUMMARY OF THE INVENTION An object of the present invention is to provide a POS terminal that eliminates the above-mentioned drawbacks and enables appropriate journal processing.

[Means to solve the problem]

The PO3 terminal of the present invention can be used as a receipt printer.

Journal dedicated disk device and CP of POS terminal (J
and a control circuit that receives print data and control commands instructing whether to print a receipt or write to a disk, classifies the print data according to the control commands, and sends it to the receipt printer or journal dedicated disk device. It is.

The control circuit has a reception buffer that temporarily stores print data and control commands sent from the CPU, and a receipt print buffer and journal buffer that store the data in the reception buffer classified according to the control commands, and from the journal buffer to the journal dedicated disk. Data transfer to the device is performed after reaching a predetermined amount of data.

[Effect]

All data transmission from the CPU (except for control commands)
It can be sent to the control circuit in the same format. As shown in the example, print data is stored in a certain fixed digit, followed by a one-character control code,
- Sort and store the data stored in the reception buffer into a receipt print buffer and a journal buffer. Print data is immediately sent sequentially to the printer from the receipt print buffer, but there is no need to write to the journal buffer immediately, and writing to the disk is done sector by sector, so you should wait until a predetermined amount of data is stored. ing.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing the configuration of CPUt, storage section 2. The displays 5 and 6 and the keyboards 7 and 8 are the same as in the conventional example, but the floppy disk (FD) device 14 is used in the system, but is unrelated to the journal-only FD device.

Regarding the printer, a control circuit 11 is connected via a printer interface 10, and a journal-specific FD device 12. The data is sent to the receipt printer 13. Note that the receipt printer 13 is shown including a printer controller. Parallel transmission is performed between the printer interface 10 and the control circuit 11 according to Centronics specifications.

As shown in FIG.
A. Receipt print buffer 11B.

It has a journal buffer 11C, and after data from the CPU is once stored in the reception buffer IIA, it is distributed and stored in each buffer IIB and IIC according to a control command. As an example, a case will be shown in which a control command is given to instruct both printer printing and journal writing for 10-digit printing. Figure 3 fa) is CP
This is print data sent from the UI to the control circuit 11 via the printer interface 10. FIG. 3(b) shows the control command. Therefore, as shown in FIG.
B. The contents of the journal buffer 11C are determined. The journal buffer 11C has a capacity to store 256 characters as the sector is 256 characters.
Since the space is empty for 45 characters, data is not transferred and is on standby. The data in the receipt print buffer IIB is sequentially sent to the receipt printer 13 and printed. When the next print data is input, the journal buffer 11C stores data starting from the next 12th character. Once 256 characters have been stored, the data in the journal buffer IIC is transferred to the journal dedicated F.
The data is transferred to the D device 12 and cleared after the transfer.

It is only necessary to prepare three commands as control commands: receipt printing, disk writing journal printing, or both receipt and journal commands.

Therefore, the software program as a PO3 terminal becomes extremely simple.

〔Effect of the invention〕

As explained above, in the present invention, a dedicated journal disk device is provided, and a control circuit is provided for sending print data to this disk device and a receipt printer. The control circuit receives a signal from the CPU in the form of a control code attached to the print data to instruct whether to print a receipt or write a journal, and transfers the data to a dedicated journal disk device or to a receipt printer. This data transfer is
The journals are sorted and stored in the control circuit and are transferred from the journal sofa and receipt print buffer to the journal dedicated disk device and receipt printer. C
In terms of the PU program, there is no need to change the program using receipts or journals, and it is only necessary to add control commands. Since the FD device is not shared as in the past, there is no need to create a complicated program for sharing.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of an embodiment of the present invention, Fig. 2 is an example of data stored in the front and back ports in the control circuit, and Fig. 3 (a), (bl is print data, control command FIG. 4 is a schematic configuration diagram of a conventional example. 1-CPU, 10-1-printer interface, 11-control circuit, 12--Journal exclusive FD device, 13-Receipt printer, 14--FD device.

Claims (1)

[Scope of Claims] 1. Receive print data and control commands instructing whether to print receipts or write to disk from the CPU of a receipt printer, a journal-only disk device, and a POS terminal, and classify the print data according to the control commands. , and a control circuit for sending data to the receipt printer or journal dedicated disk device.
OS terminal. 2. In the POS terminal according to claim 1, the control circuit is C
It has a reception buffer that temporarily stores print data and control commands sent from the PU, and a receipt print buffer and journal buffer that classify and store the data in the reception buffer according to control commands. A POS terminal characterized in that data transfer is performed after a predetermined amount of data is reached.