Information processing apparatus with power shutoff switch and control method therefor for reducing power consumption in an image forming apparatus

Patent metadata

Field	Value
Publication number	US-9285866-B2
Application number	US-201313741200-A
Country	US
Kind code	B2
Filing date	Jan 14, 2013
Priority date	Feb 16, 2012
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

An information processing apparatus includes a switching unit configured to be an ON-state in which power is supplied to the information processing apparatus and an OFF-state in which power is not supplied to the information processing apparatus, a driving unit configured to set the switching unit to the off-state, a voltage supply unit configured to apply a voltage to the driving unit, and a control unit configured to, in a case where a condition for shutting off the supply of power to the information processing apparatus is satisfied, perform control to apply the voltage from the voltage supply unit to the driving unit, and, after the voltage is applied to the driving unit, control the driving unit to set the switching unit to the off-state.

First claim

What is claimed is:

1. An information processing apparatus comprising:
a switching unit configured to be in an ON-state in which power is supplied to the information processing apparatus and an OFF-state in which power is not supplied to the information processing apparatus in accordance with a user operation;
a driving unit configured to set the switching unit to the OFF-state;
a power supply unit configured to supply power to the driving unit; and
a control unit configured to, in a case where a condition for shutting off power supply to the information processing apparatus is satisfied, control the power supply unit to generate the power to be supplied to the driving unit and perform control so that the power generated by the power supply unit is supplied to the driving unit,
wherein the driving unit to which the power is supplied sets the switching unit to the OFF-state.

2. The information processing apparatus according to claim 1 , wherein, when a first predetermined time has elapsed after the control unit controls the power supply unit to generate the power, the control unit is configured to perform control so that the power generated by the power supply unit is supplied to the driving unit.

3. The information processing apparatus according to claim 1 , wherein, when the power generated by the power supply unit is stabilized, the control unit is configured to perform control so that the power generated by the power supply unit is supplied to the driving unit.

4. The information processing apparatus according to claim 1 , wherein the power generated by the power supply unit is supplied to the driving unit for a second predetermined time.

5. The information processing apparatus according to claim 1 , wherein the condition is that a third predetermined time has elapsed without any job received, or without any input of a job by a user with an operation panel.

6. The information processing apparatus according to claim 1 , the switching unit is a mechanical switch of a toggle type that switches between the ON-state for supplying power to the information processing apparatus and the OFF-state for shutting off the supply of power thereto.

7. The information processing apparatus according to claim 6 ,
wherein the driving unit includes a solenoid; and
wherein power is supplied to the solenoid to set the mechanical switch to the OFF-state.

8. The information processing apparatus according to claim 1 , further comprising a first semiconductor switch configured to be switched on and off,
wherein, when the condition for shutting off the power supply to the information processing apparatus is satisfied, the control unit is configured to switch the first semiconductor switch from an OFF-state to an ON-state to supply the power generated by the power supply unit to the driving unit.

9. A method for controlling an information processing apparatus having a switching unit configured to be in an ON-state in which power is supplied to the information processing apparatus and an OFF-state in which power is not supplied to the information processing apparatus in accordance with a user operation, the method comprising:
setting the switching unit to the OFF-state;
supplying power to a solenoid, in a case where a condition for shutting off the supply of power to the information processing apparatus is satisfied; and
causing, after power is supplied to the solenoid, the switching unit to be OFF-state by flowing current to the solenoid.

10. The method for controlling an information processing apparatus according to claim 9 , wherein the condition is that a predetermined time has elapsed without any job received, or without any input of a job by a user with an operation panel.

Assignees

• Canon Kk

Inventors

• Iguchi Junji

Classifications

• G06F1/3246 Primary

  by software initiated power-off · CPC title

• G06F1/3284

  Power saving in printer · CPC title