JPH05162421A - Printer - Google Patents

Abstract

PURPOSE:To reduce power consumption in the waiting state of a printer by setting a main power source section off at the time of printing and providing a power source control section for receiving the data from a higher device and setting the main power source section on. CONSTITUTION:When the data is input from a higher device 9, a command is input from an interface section 4 into a power control section 3, and the power is fed to a section A where the power is not fed by a sub-power source 1 by the power control section 3 to start the work of respective components. The data from the higher device 9 is input to a print control section 10 through a CPU 5, and the data from the higher device 9 is printed out under the control of the print control section 10 by a printing mechanism 11. When printing is completed, a command of setting a main power source off is given by the CPU 5 to a power source control section 3 after the time set on a control panel 6 by a timer 7. Based on the command, the main power source 2 is set in the off state. As a result, the power consumption in the waiting state can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer, and more particularly to a printer which realizes low power consumption.

[0002]

2. Description of the Related Art A conventional printer does not have a power supply control unit,
Power was constantly supplied to all circuits.

[0003]

In this conventional printer, since power is supplied to all circuits at all times, there is a problem that the logic circuit and the printer drive circuit consume power even when the printer is in the standby state. there were.

An object of the present invention is to provide a printer with reduced power consumption during standby.

[0005]

To achieve the above object, in a printer according to the present invention, a main power supply unit for driving the printer, and a sub power supply unit for supplying a minimum required power when the printer is on standby. When the printing operation is completed, the main power supply unit is turned off, and the main power supply unit is turned on when data is received from the host device.

[0006] Further, it has an operation panel, and is set so that the main power supply unit is not turned off by operating the operation panel.

Further, it has an operation panel and a timer, and by operating the operation panel, the timer is used to set the time until the main power supply unit is turned off.

Further, the main power source section is set so as not to be turned off by operating the operation panel.

Further, the operation of the operation panel releases the OFF state of the main power source section to bring it to the ON state.

[0010]

The printer of the present invention has the main power supply unit and the sub power supply unit, and turns off the main power supply unit at the end of the printing operation and turns on the main power supply unit by receiving data from the host device.

[0011]

The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention.

In FIG. 1, the sub-power supply unit 1 is always in the ON state while the power switch 8 is in the ON state and waiting for data input from the host device, and supplies the minimum necessary power. In the embodiment, the sub power supply unit 1 supplies power to a part of the interface unit 4 with the higher-level device and the power supply control unit 3.

The main power supply unit 2 is in an ON state while the printer is operating, and supplies power to a portion not supplied by the sub power supply unit 1.

The power supply control unit 3 turns on the main power supply unit 2 when it receives a signal from the interface unit 4 indicating the reception of data from the host device 9 or when it receives an instruction to turn on the main power supply from the operation panel 6. To do.

When the printing operation is completed, the CPU 5 uses the timer 7 to give an instruction to turn off the main power source to the power source control section 3 after a lapse of time set by the operation panel 6, and the power source control section 3 uses the main power source section. 2 is turned off.

In the embodiment, the main power supply unit 2 is in the OFF state while waiting for the data input from the host device 9. On the other hand, the sub power supply unit 1 is in the ON state, and power is supplied to part of the interface unit 4 and the power supply control unit 3. Here, while the data input is on standby, only the sub-power supply unit 1 is operating, and only the minimum necessary power is consumed, thus realizing energy saving.

When data is input from the host device 9, a command is input from the interface section 4 to the power control section 3.
In response to this command, the power control unit 3 supplies power to the part where the sub power supply unit 1 does not supply power, that is, the part (A) in the embodiment, and activates each component.

The data from the host device is input to the print controller 10 via the CPU 5, and the printing mechanism 11 prints out the data from the host device 9 under the control of the print controller 10.

When the printing operation is completed, the CPU 5 uses the timer 7 to give an instruction to turn off the main power source to the power source control section 3 after a lapse of time set by the operation panel 6. The power supply control unit 3 turns off the main power supply unit 2 based on this command.

[0020]

As described above, the present invention has the effect of reducing power consumption in the standby state because the main power supply can be turned off after the operation of the printer is completed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Sub-power supply unit 2 Main power supply unit 3 Power supply control unit 4 Interface unit 5 CPU 6 Operation panel 7 Timer 8 Power switch 9 Upper device 10 Print control unit 11 Printing mechanism

Claims (5)

[Claims] 1. A main power supply unit for driving a printer, a sub power supply unit that supplies a minimum amount of electric power when the printer is on standby, the main power supply unit is turned off at the end of a printing operation, and data is received from a host device. A printer having a power supply control unit for turning on the main power supply unit. 2. The printer according to claim 1, further comprising an operation panel, wherein the main power supply unit is set so as not to be turned off by operating the operation panel. 3. The printer according to claim 1, further comprising an operation panel and a timer, wherein the time until the main power supply unit is turned off is set by the operation of the operation panel using the timer. 4. The main power supply unit is turned off by operating an operation panel.
The printer according to claim 3, wherein the printer is set so as not to perform F. 5. The OF of the main power source section is operated by operating an operation panel.
The printer according to any one of claims 1, 2, 3 and 4, wherein the F state is released and brought into an ON state.