Device management using power supply status

A management apparatus which is connected, via a network, to a device comprising a job log recording unit configured to record, in a first memory, a job log including a start time and an end time of an executed job, and manages the device, said apparatus comprising:

• a power supply status monitoring unit configured to receive, from the device, a power supply status notification indicating a power supply status including information indicating whether or not a power supply of the device is ON and information indicating whether or not an operation mode of the device is a power saving mode, and to identify a time at which the power supply of the device shifted to a different status and a time at which the operation mode of the device shifted to a different mode;
• a power supply status log recording unit configured to record, in a second memory, a power supply status log including the shift time to the different status or the different operation mode and a power supply status after the shift time;
• a job log collection unit configured to collect job logs recorded in the first memory by issuing a job log acquisition request to the device;
• and
• an update unit configured to additionally record, in the second memory, a log indicating that a status shifted to a status of job processing at a start time of the job, and shifted to a status before the start time of the job at an end time of the job.

A device management method of a device management system in which a device which is allowed to shift to a power saving mode and a management apparatus which manages the device are connected to a network, the method comprising:

• a power supply status notification step of notifying the management apparatus of a power supply status including information indicating whether or not a power supply of the device is ON and information indicating whether or not an operation mode of the device is a power saving mode;
• a power supply status monitoring step of identifying, based on a power supply status notification received from the device, a time at which the power supply of the device shifted to a different status and a time at which the operation mode of the device shifted to a different mode;
• a power supply status log recording step of recording, in a first memory, a power supply status log including the shift time to the different state or the different operation mode and a power supply status after the shift time;
• a job log recording step of recording, in a second memory at the device, a job log including a start time and an end time of a job executed by the device;
• a job log collection step of issuing a job log acquisition request to the device;
• a job log sending step of sending job log information recorded in the second memory to the management apparatus in response to the job log acquisition request from the management apparatus;
• and
• an update step of additionally recording, in the first memory, a log indicating that a status shifted to a status of job processing at the start time of the job and shifted to a status before the start time of the job at the end time of the job.

A non-transitory computer-readable storage medium storing a program for controlling a computer to function, in a device management system in which a device which is allowed to shift to a power saving mode and a management apparatus which manages the device are connected to a network, as:

• a power supply status notification unit configured to notify the management apparatus of a power supply status including information indicating whether or not a power supply of the device is ON and information indicating whether or not an operation mode of the device is a power saving mode;
• a power supply status monitoring unit configured to identify, based on a power supply status notification received from the device, a time at which the power supply of the device shifted to a different status and a time at which the operation mode of the device shifted to a different mode;
• a power supply status log recording unit configured to record, in a first memory, a power supply status log including the shift time to the different state or the different operation mode and a power supply status after the shift time;
• a job log recording unit configured to record, in a second memory at the device, a job log including a start time and an end time of a job executed by the device;
• a job log collection unit configured to issue a job log acquisition request to the device;
• a job log sending unit configured to send job log information recorded in the second memory to the management apparatus in response to the job log acquisition request from the management apparatus;
• and
• an update unit configured to additionally record, in the first memory, a log indicating that a status shifted to a status of job processing at the start time of the job and shifted to a status before the start time of the job at the end time of the job.