JPS63199673A - Terminal controller for electronic apparatus - Google Patents

Abstract

PURPOSE:To reduce consumption of power by an electronic apparatus, by simultaneously controlling an internal terminal part and an external terminal part when source power is externally supplied to the external terminal part, and individually controlling the two terminal parts when source power is supplied to the external terminal part from the electronic apparatus. CONSTITUTION:A printer-controlling circuit 12 in a slip printer 1 discriminates a sense signal, and judges whether source power is supplied from an external power source 2 by fitting a plug 15 into a connector 14. Namely, when the sense signal is at an 'L' level, it is judged that the external power source 2 is connected, and the condition is reported to a CPU 4. The CPU 4 gives a printing command to an R/J printer 8 when it is judged that the external power source 2 is connected to the printer 1. When the external power source 2 is not connected to the printer 1, it is judged whether slip printing by the printer 1 is finished, and when the printing is finished, the CPU 4 gives an R/J printing command to the printer 8. When the external power source 2 is not connected to the printer 1, completion of slip printing is waited for, and the R/J printing command is given when the slip printing is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a terminal control device for electronic equipment, for example, an R/J built in an electronic equipment such as an electronic cash register (hereinafter referred to as ECR). The present invention relates to a terminal control device for an electronic device that controls a printer and an external terminal unit such as an externally connected slip printer.

[Prior Art] An ECR has a built-in so-called R/J printer for printing data related to products on receipts and journals. Most of the power consumption of such an ECR is required to drive the R/J printer, and the power consumption by other CPUs, memory, etc. is small.

On the other hand, in ECRs installed in restaurants, etc., in order to print food and drink charges on slips other than receipts, it is recommended to connect a slip printer externally to the ECR. It is L. Such slip printers include those that use a dedicated external power source and those that are supplied with power from the ECR main body.

[Problems to be Solved by the Invention] In the case where power is supplied from the ECR main body to the slip printer, if the R/J printer and the slip printer inside the ECR main body are driven at the same time, power consumption increases.
This requires a large-capacity power source, which not only increases the cost but also increases the size. Therefore, it is necessary to suppress power consumption by printing with a slip printer after printing with an R/J printer. However, R
If the printing by the /J printer and the printing by the slip printer are performed separately, the printing time becomes long and the waiting time of the customer becomes long.

Therefore, the main object of the present invention is to shorten processing time by simultaneously controlling the internal terminal section and the external terminal section when using an external power supply, and to control the internal terminal section only when power is supplied from the electronic device. An object of the present invention is to provide a terminal control device for an electronic device that individually controls a terminal unit and an external terminal unit.

[Means for Solving the Problems] The present invention includes an external terminal connected to an electronic device having an internal terminal and supplied with power from the electronic device or externally. and an internal terminal section, the external terminal section is provided with a detection means for outputting a detection signal in response to detecting that power is supplied from the outside,
When the electronic device does not receive a detection signal from the detection means, the electronic device supplies power to the external terminal section and controls the external terminal section and the internal terminal section individually, and when a detection signal is given from the detection means. , a control means for cutting off the power supplied to the external terminal section and controlling the external terminal section and the internal terminal section at the same time.

[Operation] The terminal control device for an electronic device according to the present invention controls the power of the electronic device by simultaneously controlling the internal terminal portion and the external terminal portion when power is supplied to the external terminal portion from the outside. Processing time can be shortened without increasing consumption. Then, by individually controlling the external terminal section and the internal terminal section only when power is being supplied from the electronic device to the external terminal section, the power consumption of the electronic device is reduced.

[Embodiment of the Invention] FIG. 1 is a schematic block diagram showing the overall configuration of an embodiment of the present invention, and FIG. 2 is a schematic block diagram of a slip printer.

First, the configuration of an embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIG. 2, the ECR main body 3 includes a CPU 4, a keyboard 5, a display 6, a memory 7, and an R/J printer 8. The keyboard 5 is used to input price data, department code, payment amount, etc. of products purchased by the customer, and the display 6 is used to display these data. The memory 7 stores programs for the CPU 4 to perform registration processing, data input from the keyboard 5, and the like. The R/J printer 8 prints data related to products on receipts and journals.

Further, a slip printer 1 is externally connected to the ECR main body 3, and power is supplied to the slip printer 1 from an external power source 2. As shown in FIG. 1, the slip printer 1 includes a power supply section 11, a printer control circuit 12, a printer 13, and connectors 14 and 16. A plug 15 is connected to the connector 14, and an external power supply 2 is connected to the plug 15.
is connected. Further, the connector 16 is connected to the ECR main body 3, and power is supplied from the ECR main body 3 via this connector 16. The power supply unit 11 supplies either the power supplied from the ECR main body 3 or the power supplied from the external power supply 2 to the printer control circuit 12. A printer control circuit 12 controls a printer 13. In addition,
A shorting line 17 is connected to the plug 15, and when the plug 15 is inserted into the connector 14, an "L" level sense signal is given to the printer control circuit 12. Therefore, if the sense signal is at the "L" level, the printer control circuit 12 detects that the external power supply 2 is connected to the slip printer 1.

FIGS. 3 and 4 are flowcharts for explaining the specific operation of one embodiment of the present invention.

Next, with reference to FIGS. 1 to 4, a specific operation of an embodiment of the present invention will be described.

In the ECR main body 3, the CPU 4 performs registration processing of data related to products input from the keyboard 5. At this time, the printer control circuit 12 of the slip printer 1 determines the sense signal and determines whether the plug 15 is inserted into the connector 14 and power is being supplied from the external power source 2. That is, the printer control circuit 12 detects that the sense signal is “
If the level is L, it is determined that the external power supply 2 is connected, and the CPU 4 of the ECR main body 3 is notified of this.

The CPU 4 determines whether or not the external power supply 2 is connected to the slip printer 1, and when determining that it is connected, gives a print command to the R/J printer 8.

If the external power supply 2 is not connected to the slip printer 1, it is determined whether the slip printing by the slip printer 1 has been completed. If completed, an R/J print command is given to the R/J printer 8. If the external power supply 2 is not connected to the slip printer 1, it will wait until the slip printing by the slip printer 1 is finished, and when the printing is finished, it will issue an R/J print command to the R/J printer 8. give.

Next, when performing slip printing, the CPU 4 determines whether or not the external power supply 2 is connected to the slip printer 1 in the same manner as described above, and if it is connected, the CPU 4 determines whether or not the external power supply 2 is connected to the slip printer 1. Give slip print instructions. However, if external power supply 2 is not connected,
The CPU 4 determines whether printing by the R/J printer 8 has finished, and if so, gives a slip print command to the slip printer 1, and if the R/J print has not finished, waits and prints the print. After completion of the process, a slip print command is given to the slip printer 1.

In the above-mentioned embodiment, the present invention is applied to an ECR main body 3 that has an R/J printer 8 built-in and a slip printer 1 externally connected thereto, but the present invention is not limited to this. The present invention can be applied to any electronic device that has a terminal section and an external terminal section connected to the outside, as long as it controls the internal terminal section and the external terminal section.

[Effects of the Invention] As described above, according to the present invention, it is determined whether or not power is supplied from the external power source to the external terminal section, and if the external power source is supplied, the internal terminal section and the external terminal section When the external terminal is not supplied with external power and is supplied with power from an electronic device, the internal terminal and external terminal are individually controlled. When the electronic device is supplied with power from the outside, processing can be accelerated, and when power is supplied from the electronic device to the external terminal, power consumption can be reduced even if the processing speed is slow.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram showing the overall configuration of an embodiment of the present invention. FIG. 2 is a schematic block diagram of a slip printer. FIGS. 3 and 4 are flowcharts for explaining the specific operation of one embodiment of the present invention. In the figure, 1 is a slip printer, 2 is an external power supply, and 3 is a slip printer.
1 is an ECR body, 4 is a CPU, 5 is a keyboard, 6 is a display, 7 is a memory, 8 is an R/J printer, 11 is a power supply section, 12 is a printer control circuit, 13 is a printer, 14.
16 is a connector, and 15 is a plug. Figure 3 Figure 4

Claims (2)

[Claims] (1) An external terminal unit connected to an electronic device having an internal terminal unit and supplied with power from the electronic device or externally, and controlling the external terminal unit and the internal terminal unit. A terminal control device for an electronic device, wherein the external terminal section is provided with a detection means that outputs a detection signal in response to detecting that power is supplied from the outside, The device supplies power to the external terminal unit and individually controls the external terminal unit and the internal terminal unit when the detection signal is not provided from the detection means,
The electronic device comprises a control means for cutting off power supply to the external terminal section and controlling the external terminal section and the internal terminal section at the same time when a detection signal is given from the detection means. Terminal control device. (2) An external power supply is supplied to the external terminal section via a connector, and the detection means detects that power is being supplied from the external power supply when the connector is attached to the external terminal section. A terminal control device for an electronic device according to claim 1, which is configured to perform detection.