Patent ID: 11863721
Assignee: RICOH COMPANY, LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A control device, comprising:
a first control unit including a first controller, the first control unit being configured to operate in a first operation mode and to be powered off in a second operation mode in which a power consumption is lower than a power consumption in the first operation mode;
a second control unit including a second controller and being configured to operate in the first operation mode and the second operation mode; and
a power supply controller configured to control power supply to the first control unit and power supply to the second control unit,
the second control unit including:
a communication interface configured to perform communication with the first control unit and stop operating in the second operation mode;
an abnormality detector configured to detect an abnormality of the second controller; and
a system controller configured to cause the communication interface to start an operation and cause the power supply controller to activate the first control unit, based on detection of the abnormality of the second controller by the abnormality detector in the second operation mode.