US Patent No. 9,491,322

IMAGE FORMING APPARATUS, METHOD FOR CONTROLLING IMAGE FORMING APPARATUS, AND SYSTEM


Patent No. 9,491,322
Issue Date November 08, 2016
Title Image Forming Apparatus, Method For Controlling Image Forming Apparatus, And System
Inventorship Shohei Baba, Tokyo (JP)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 9,491,322

1. An image forming apparatus comprising:
a processor;
a retaining unit configured to retain transition information indicating that the image forming apparatus is started by shifting
from a power-off state to a standby state or that the image forming apparatus is started by shifting from the power-off state
to a sleep state;

a failure detection unit configured to detect that a failure has occurred in the image forming apparatus;
a determination unit configured to determine whether the transition information indicates that the image forming apparatus
is started by shifting the power-off state to the sleep state, and whether the detected failure requires that the image forming
apparatus shift to the standby state after being restarted;

a changing unit configured to change, in a case where the determination unit determines that the transition information indicates
that the image forming apparatus is started by shifting the power-off state to the sleep state, and that the detected failure
requires that the image forming apparatus shift to the sleep state after being restarted, the transition information so that
the transition information indicates that the image forming apparatus is started by shifting the power-off state to the standby
state;

a detection unit configured to detect an instruction to supply power in the power-off state of the image forming apparatus;
and

a control unit configured to perform control such that the image forming apparatus is started by shifting from the power-off
state to the standby state or is started by shifting from the power-off state to the sleep state based on the transition information
retained in the retaining unit when the detection unit detects the instruction to supply power to the image forming apparatus,

wherein the processor implements the retaining unit, the failure detection unit, the determination unit, the changing unit,
the detection unit, and the control unit.