MFP Security Level Adjustment via Network Power State Detection
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Solution Overview
Problem
Multifunction peripherals (MFPs) connected to networks face challenges in managing security levels effectively, particularly in ensuring secure operation when administrators are absent and in power-saving modes, as existing solutions do not adequately adapt to varying network environments and user states.
Innovation Solution
An image forming apparatus connected to a network that includes an obtaining unit for monitoring the power state of other connected devices and a setting unit that accesses stored information to determine and set appropriate security levels based on the power state, allowing for automatic adjustment of security settings to ensure optimal security management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the MFP maintains high security levels at all times, then security management is improved, but power consumption increases and usability deteriorates when administrators are present
Solution Approach 1:
The patent applies dynamics by making the security level adjustable and changeable based on real-time detection of administrator presence. The security level transitions from a static constant to a dynamic parameter that adapts to environmental conditions, specifically switching between high security (when administrator is absent) and normal security (when administrator is present), thereby optimizing both security management and power consumption.
Solution Approach 2:
The patent changes the security level parameter based on detected conditions. When the administrator's apparatus is detected as absent, the security level parameter is increased to a high level; when present, it is reduced to a normal level. This parameter adjustment resolves the contradiction by allowing the system to maintain high security only when necessary, reducing power consumption during periods when high security is not required.
2Reliability
If the MFP automatically reinforces security when administrators are absent, then security management is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling the MFP to automatically detect the presence or absence of the administrator's apparatus and autonomously adjust the security level without requiring manual intervention. The system monitors network environment changes and automatically reinforces security when the administrator is absent, thereby improving security management while avoiding the complexity of manual control systems through automated decision-making.
Solution Approach 2:
The patent employs feedback mechanisms by continuously monitoring the network environment and the power state of the administrator's apparatus, then using this information to automatically adjust security levels. The system receives feedback about administrator presence and responds by modifying security settings, creating a closed-loop control system that improves security management without requiring complex manual oversight.
3Reliability
If the MFP monitors network environment continuously, then security management is improved, but power consumption and processing load increase
Solution Approach 1:
The patent applies periodic action by having the MFP monitor the network environment at regular intervals rather than continuously. The system periodically checks the power state of the administrator's apparatus and adjusts security levels accordingly, thereby maintaining effective security management while reducing power consumption and processing load compared to continuous monitoring.
Data Source
AI summary
An MFP receives notification of a power state of a networked client apparatus or PC from the PC and updates user management information in accordance with the power state of the PC. The MFP determines a security level in real time in accordance with the state of the power supply of the networked client apparatus that is stored in the user management information, and sets the determined security level for the MFP.