Image Forming Apparatus Wireless LAN Password Security
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Solution Overview
Problem
Image forming apparatuses face challenges in securely connecting to wireless LAN access points outside the company, as they often lack robust security measures, making them vulnerable to information leakage, and may impair convenience due to restricted connections.
Innovation Solution
The image forming apparatus is equipped with a wireless LAN interface, user interface, and computer that allows it to receive instructions for image formation through established wireless LAN communication, with the ability to set connection restriction conditions based on password security, restricting communication if the password does not meet administrator-defined criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the image forming apparatus connects to wireless LAN access points freely, then convenience is improved, but security deteriorates due to information leakage risks
Solution Approach 1:
The patent changes the parameter of password strength by evaluating password length and complexity characteristics. The control unit analyzes whether the password meets predetermined conditions (minimum length, character diversity) and restricts connection based on this evaluation, thus transforming the security parameter from binary (connected/not connected) to graded (password strength levels).
Solution Approach 2:
The patent introduces an intermediary evaluation mechanism (the control unit's password assessment function) between the image forming apparatus and the wireless LAN access point. This intermediary evaluates password characteristics and mediates the connection decision, allowing the system to filter out weak passwords while permitting strong ones, thus resolving the contradiction between convenience and security.
2Object-affected harmful factors
If connection to wireless LAN access points is restricted, then security is improved, but convenience deteriorates
Solution Approach 1:
The patent changes the restriction parameter from blanket connection blocking to selective restriction based on password evaluation. By establishing predetermined conditions for password strength (length, character types), the system restricts only connections with weak passwords while allowing strong password connections, thus improving security without excessively compromising convenience.
3Object-affected harmful factors
If password-based authentication is required, then security is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by having the control unit automatically evaluate password characteristics and make connection decisions without requiring manual security configuration or complex authentication protocols. The system autonomously analyzes password strength and either permits or restricts connection based on predetermined criteria, simplifying the overall device complexity while maintaining security.
Data Source
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AI summary
An image forming apparatus includes a wireless LAN interface, and a computer. The computer is configured to set a connection restriction condition related to a password. In a case where the image forming apparatus receives a connection instruction, in a state where a connection between the wireless LAN access point and the wireless LAN interface is not established, the computer is further configured to perform a connection attempt processing of attempting to establish the connection between the wireless LAN access point and the wireless LAN interface, and in a case where authentication using a password is necessary for establishing the connection between the wireless LAN access point and the wireless LAN interface and in a case where the password used for establishing the connection satisfies the connection restriction condition set by the administrator, a restriction processing of restricting the wireless LAN communication via the wireless LAN access point.