Electronic Device Startup Restriction for Initial Administrator Passwords

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Solution Overview

Problem

Existing electronic devices, such as printers, allow continued use with an initial administrator password set by the vendor, lacking effective mechanisms to prevent unauthorized access or prompt password changes.

Innovation Solution

Implement a determination processing portion to identify the initial password, initiating a restricted mode and a reception processing portion to receive a password change operation, ensuring the device operates only in restricted functions until a valid password is set.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the electronic device allows continued use with the initial administrator password, then ease of operation is improved, but security is worsened

Engineering Contradiction:

Improveease of operationVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary detection at startup to determine whether the administrator password is an initial password before allowing full operation. This preliminary action enables the system to proactively identify security risks and trigger appropriate responses (restricted mode or password change prompt) before unauthorized access can occur, thus maintaining security without compromising ease of operation for legitimate users

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the electronic device starts in restricted mode when initial password is detected, then security is improved, but ease of operation is worsened

Engineering Contradiction:

ImprovesecurityVSAvoidease of operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system dynamically adjusts its operational mode based on the detected password status. When an initial password is detected, the device starts in restricted mode with limited functions. However, the system remains dynamic by allowing users to change the password through the operation input device, at which point the system transitions to normal mode with full functionality. This dynamic adaptation ensures security is maintained only when necessary while preserving ease of operation when security risks are mitigated

Inventive Principle:

Principle #15Dynamics

3Reliability

If the electronic device prompts for password change when initial password is detected, then security is improved, but device complexity is worsened

Engineering Contradiction:

ImprovesecurityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system extracts the password change interaction from the core device functionality and relocates it to an external operation input device. This separation allows the electronic device to maintain its primary functions while delegating the password change process to an external interface, thus improving security without significantly increasing the complexity of the device itself

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP4607379A1Electronic device and operation control method capable of suppressing continued use of administrator password when administrator password is initial password

Publication Date: 2025.08.27 KYOCERA DOCUMENT SOLUTIONS INC

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AI summary

An electronic device (100A) includes a determination processing portion (31), a startup processing portion (32), and a reception processing portion (33A). The determination processing portion (31) determines, when the electronic device (100A) is started, whether or not an administrator password used for authenticating an administrator of the electronic device (100A) is a predetermined initial password. The startup processing portion (32), when the determination processing portion (31) determines that the administrator password is the initial password, starts the electronic device (1 00A) in a restricted mode in which functions of the electronic device (100A) are restricted. The reception processing portion (33A) receives a change operation to change the administrator password when started in the restricted mode.