JPH0558001A - Power source on/off system for printer - Google Patents

Abstract

PURPOSE:To make it possible to turn on/off the power source of a printer by the terminal unit without directly and manually turning on/off the power source on the spot. CONSTITUTION:For a system for which a plurality terminal units 3 are connected by communication cables 2 to a host computer 1 which is equipped with a printer 4 and a printer device power source control device 5, a switch function to turn ON/OFF the printer device 4 by a command input, and an ON/OFF verification function to verify that the printer 4 is ON or OFF are provided on the printer device power source control device 5. Then, on respective terminal units 3, a display device 6 to display that the power source of the printer 4, which has been verified by above mentioned verification function, is ON or OFF, and a command input device 7 to input a command for turning ON or OFF the power source of the printer 4 are equipped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a series of processes using a computer system, and more particularly, to turning on a printer device.
Regarding the OFF method.

[0002]

2. Description of the Related Art Conventionally, in a computer system comprising a host computer equipped with a printer device and a plurality of terminal devices connected to it by a communication cable, when the power supply of the printer device connected to the host computer is turned on and off. I went to the location of the printer and turned it on and off manually.

[0003]

However, in the above-described computer system equipped with a printer device, when the power supply of the printer device connected to the host computer is turned on and off, the printer is directly moved to the place of the printer device and manually operated. Since the terminal device and the printer device are separated from each other, the work of turning the printer device power on and off is troublesome, and the printer device power is turned on to avoid the trouble. Tended to leave.

The present invention has been made in view of the above problems, and a power source for a printer device that can be processed by a terminal device without directly turning on and off the power source for the printer device on the spot. The purpose is to provide an ON / OFF method.

[0005]

In order to achieve the above object, the power supply ON / OFF system of the printer of the present invention is
In a computer system in which a plurality of terminal devices are connected to a host computer equipped with a printer device and a printer device power supply control device via a communication cable, a switch function for turning the printer device on and off by command input to the printer device power supply control device. , ON, OFF to check whether the printer device is ON or OFF
A confirmation function, a display function for displaying to each terminal device whether the power source of the printer device confirmed by the confirmation function is ON or OFF, and the printer device when the power source of the printer device is OFF, The configuration is provided with an ON command input function for inputting a command for turning on the power supply and an OFF command input function for inputting a command for turning off the power supply for the printer device when the power supply for the printer device is ON.

[0006]

Operation: Power ON and O of the printer device having the above configuration
According to the FF method, is the power of the printer device connected to the host computer in each terminal device turned on?
It is displayed whether it is FF and the power of the printer device is turned off
When a command is input from the terminal device, the power of the printer device is turned on. When the power of the printer device is turned on, a command is input from the terminal device, the power of the printer device is turned off. Become.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows a computer system to which the present invention is applied.

In FIG. 1, the computer system is
It comprises a host computer 1, a communication cable 2 and a terminal device 3. A printer device 4 and a printer device power control device 5 are connected to the host computer 1. The printer power supply control device 5 has a switch function for turning on / off the printer device 4 by command input,
It has an ON / OFF confirmation function for confirming whether the printer device 4 is ON or OFF.

Further, each terminal device 3 is provided with a display device 6 for displaying whether the power of the printer device 4 confirmed by the confirmation function is ON or OFF. Reference numeral 7 denotes an input device for inputting a command to turn on the power of the printer device 4 when the power of the printer device 4 is off.
It has an N command input function and an OFF command input function for inputting a command to turn off the power of the printer device 4 when the power of the printer device 4 is ON.
The display device 6 and the input device 7 are connected to the terminal device 3.

Next, the operation of this embodiment will be described in detail with reference to the flow charts of FIGS. When the host computer 1 and the printer device power control device 5 are activated, when the terminal device 3 is powered on and activated (step 31), at the same time, the terminal device 3 automatically passes through the host computer 1, The printer power supply confirmation command 8 is issued to the printer power supply control device 5 (step 32). When the printer power supply control device 5 receives the printer power supply confirmation command 8 (step 3)
3) It is checked whether the power supply of the printer device 4 is ON or OFF (step 34), the content is written in the printer device power supply confirmation status 9 (step 35) and transmitted to the terminal device 3 (step 36). When the terminal device 3 receives the printer device power supply confirmation status 9 (step 37),
The printer device power supply status 10 is displayed on the display device 6.
(Step 38).

As long as the host computer 1, the printer device power control device 5 and the terminal device 3 are activated, the terminal device 3 automatically issues the printer device power confirmation command 8 to the printer device power control device 5 at regular intervals. Each time, the printer power supply control device 5 checks whether the power supply of the printer device 4 is ON or OFF, writes the content in the printer device power supply confirmation status 9, and transmits it to the terminal device 3 (steps 32 to 37). If the contents of the printer device power supply confirmation status 9 are the same as the previous contents, the display contents are not changed. If the contents of the printer device power supply confirmation status 9 are different from the previous contents, the printer device power supply status 10
Is changed and displayed (step 39).

The content of the printer power supply status 10 is OFF
3, the printer device power supply state control utility 11 is started in the terminal device 3 (step 41), and the ON command 12 is input from the input device 7 (step 42). It is transmitted to the printer power supply control device 5 via the host computer 1 (step 43). The printer power supply control device 5 receives the ON command 12 (step 4).
4) Turn on the printer device 4 (step 4
5) Write the printer power supply ON status in the printer device power supply confirmation status 9 (step 46), and send the printer device power supply confirmation status 9 to the terminal device 3 (step 47). When the terminal device 3 receives the printer device power supply confirmation status 9 (step 48), it changes the content of the printer device power supply state 10 to ON and displays it on the display device 6 (step 49).

When the content of the printer device power supply state 10 is ON, the printer device power supply state control utility 1
1 is started by the terminal device 3 (step 41), and the OFF command 13 is input from the input device 7 (step 4).
2), the OFF command 13 is transmitted to the printer power supply device 5 via the host computer 1 (step 43), and the printer power supply device 5 receives the OFF command 1
When 3 is received (step 44), the power of the printer device 4 is turned off (step 45), the content of the printer power supply OFF is written in the printer device power supply confirmation status 9 (step 46), and the printer device power supply confirmation status 9 is displayed. It is transmitted to the device 3 (step 47). When the terminal device 3 receives the printer device power supply confirmation status 9 (step 48), the contents of the printer device power supply status 10 are changed to OFF and displayed on the display device 6 (step 4).
9).

[0014]

As described above, according to the power ON / OFF method of the printer of the present invention, the power of the printer is turned on and off in the series of processing for turning on / off the power of the printer connected to the host computer. ON, OF
Since it is possible to confirm and operate F from each terminal device, it is possible to shorten the confirmation time of turning on / off the power of the printer device, improve the operation efficiency, and further reduce the electricity consumption. There is an effect that you can.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a computer system to which the present invention is applied.

FIG. 2 is a flowchart showing a display processing flow of turning on / off a power source of a printer device.

3 is a continuation of FIG. 2 in which the power of the printer is turned ON and OF
It is a flow chart which shows the display processing flow of F.

FIG. 4 is a flowchart showing an ON / OFF operation processing flow of a power source of the printer device.

FIG. 5 is a diagram illustrating a case where the power of the printer device is turned on and off, following FIG. 4;
9 is a flowchart showing an F operation processing flow.

[Explanation of symbols]

 1 Host Computer 3 Terminal Device 4 Printer Device 5 Printer Device Power Control Device 6 Display Device 7 Input Device

Claims (1)

[Claims] 1. In a computer system in which a plurality of terminal devices are connected to a host computer equipped with a printer device and a printer device power supply control device via a communication cable, the printer device power supply control device is turned on by a command input, It is provided with a switch function for turning off and an ON / OFF confirmation function for confirming whether the printer device is ON or OFF, and each terminal device confirms whether the power source of the printer device confirmed by the confirmation function is ON or OFF. Display function to display whether or not the printer device is powered on when the printer device power is off
An ON command input function for inputting a command to turn ON and an OFF command input function for inputting a command to turn OFF the power supply of the printer when the power supply of the printer is ON are provided. Power ON / OFF method.