Image Processor Power Mode Control for Document Notification
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Solution Overview
Problem
Image processing apparatuses face challenges in shifting to a power saving mode effectively while performing document storage processes and issuing notices, leading to inefficient power consumption due to repeated mode shifts and potential missed notifications.
Innovation Solution
Incorporating a control unit that restricts the shift from normal power mode to power saving mode until a document storage notice is issued, ensuring power supply to necessary components for notification and allowing for reduced power consumption by maintaining the power saving mode after notifications are sent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the image processing apparatus shifts to power saving mode after document storage process completion, then power consumption is reduced, but document storage notices cannot be issued timely
Solution Approach 1:
The control unit determines in advance whether a document storage notice should be issued before allowing the shift to power saving mode. By checking the notice issuance condition (whether a notice is scheduled to be sent) before mode transition, the system prevents entering power saving mode at inappropriate times when notices need to be sent, thus ensuring notice reliability while still enabling power saving when safe.
2Reliability
If the image processing apparatus repeatedly shifts between normal and power saving modes to ensure notice issuance, then notice reliability is maintained, but power consumption reduction effects are insufficient
Solution Approach 1:
Instead of repeatedly shifting modes after notices are due, the control unit performs preliminary checking before mode transition to determine if notice issuance is scheduled. This prevents unnecessary mode shifts and allows the apparatus to remain in power saving mode longer, achieving both notice reliability and effective power consumption reduction.
3Reliability
If the image processing apparatus prohibits shifting to power saving mode during document storage process, then document storage completeness is ensured, but power consumption cannot be reduced effectively
Solution Approach 1:
The control logic segments the operational states into distinct phases: document storage process phase and notice issuance phase. The control unit checks which phase is active and makes mode transition decisions accordingly - prohibiting power saving mode during document storage but allowing it after completion if no notice is scheduled, thus balancing completeness and power savings.
Data Source
AI summary
An image processing apparatus capable of shifting to a power saving mode. The image processing apparatus includes a storing unit configured to store a document in a storage device, a notification unit configured to periodically notify an apparatus of a predetermined destination of information about a document that has been newly stored by the storing unit into the storage device, and a control unit configured to restrict shifting to a power saving mode in which the notification unit cannot make the notification after storage of a document by the storing unit has been completed and until the notification unit notifies at least information about the document.