Information processing apparatus and method for controlling the information processing apparatus

Patent metadata

Field	Value
Publication number	US-9335812-B2
Application number	US-201314053039-A
Country	US
Kind code	B2
Filing date	Oct 14, 2013
Priority date	Oct 17, 2012
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

An information processing apparatus operable in a standby mode and in a sleep mode. The information processing apparatus comprising a sleep unit and, a power-off unit. The sleep unit configured to shift the information processing apparatus into the sleep mode if a first time has elapsed in the standby mode. The power-off unit configured to turn off the power supply of the information processing apparatus if a second time has elapsed in the sleep mode and configured to turn off the power supply of the information processing apparatus at a specified time. The power-off unit configured to turn off the power supply of the information processing apparatus without waiting for the second time if the information processing apparatus has been started after the time specifying power-off processing.

First claim

What is claimed is:

1. An information processing apparatus comprising:
a first power-off unit configured to turn off the information processing apparatus when a first time has elapsed without receiving user operation, and
a second power-off unit configured to turn off the information processing apparatus at a specified time,
wherein the first power-off unit is configured to turn off the information processing apparatus before the first time elapses if the information processing apparatus has been started before an offset time has elapsed after the second power-off unit has turned off the information processing apparatus at the specified time.

2. The information processing apparatus according to claim 1 , further comprising:
a sleep unit configured to shift the information processing apparatus into a sleep mode from a standby mode if a second time has elapsed in the standby mode.

3. The information processing apparatus according to claim 2 , wherein the first power-off unit is configured to turn off the information processing apparatus before the sleep unit shifts the information processing apparatus into the sleep mode from the standby mode.

4. The information processing apparatus according to claim 1 , wherein the first power-off unit is configured to turn off the information processing apparatus when a second time, which is shorter than the first time, has elapsed.

5. The information processing apparatus according to claim 4 , further comprising:
a receiving unit configured to receive the second time from a user.

6. The information processing apparatus according to claim 1 , wherein the first power-off unit does not turn off the information processing apparatus before information processing has ended.

7. The information processing apparatus according to claim 1 , further comprising:
a display unit configured to display a warning screen that prompts a user to power off the information processing apparatus if the information processing apparatus has been started before the offset time has elapsed after the second power-off unit has turned off the information processing apparatus at the specific time.

8. The information processing apparatus according to claim 1 , wherein the information processing apparatus is an image forming apparatus.

9. A method for controlling an information processing apparatus comprising:
first powering off the information processing apparatus when a first time has elapsed without receiving user operation;
second powering off the information processing apparatus at a specified time;
determining whether the information processing apparatus has been started after the time specifying power-off processing; and
third powering off the information processing apparatus before the first time elapses if it is determined that the information processing apparatus has been started before an offset time has elapsed after the second power-off unit has turned off the information processing apparatus at the specified time.

Assignees

• Canon Kk

Inventors

• Choho Satoshi

Classifications

• G06F1/3228 Primary

  Monitoring task completion, e.g. by use of idle timers, stop commands or wait commands · CPC title

• Y02B60/32

  Cross-Sectional Technologies · mapped topic

• G06F1/3284

  Power saving in printer · CPC title

• G06F1/3234 Primary

  Power saving characterised by the action undertaken · CPC title

• Y02B60/1267

  Cross-Sectional Technologies · mapped topic