Terminal Setup Guidance for MFP Certificate Warnings

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Solution Overview

Problem

Users face difficulties in accessing web pages for configuring advanced settings on information processing apparatuses like MFPs due to warnings displayed when using self-signed certificates, which can confuse users about how to proceed.

Innovation Solution

A method is implemented to display guide information on a terminal apparatus about how to handle certificate warnings and access web pages for configuring settings, using a setup application that provides instructions tailored to the user's browser type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a self-signed certificate is used in the MFP web server, then cost is reduced, but a warning is displayed on the browser causing user confusion

Engineering Contradiction:
ImprovecostVSAvoiduser accessibility
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The patent introduces an intermediary application that acts as a mediator between the user and the MFP web server. This application detects when a certificate warning is displayed, automatically handles the warning by selecting 'continue' or 'accept risk', and transparently forwards the user to the web page. This resolves the contradiction by maintaining the low-cost self-signed certificate while eliminating user confusion through automated warning handling.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The intermediary application implements self-service by automatically detecting certificate warnings and handling them without requiring user intervention. The application monitors browser warnings, identifies self-signed certificate issues, and autonomously proceeds by selecting appropriate actions (continue/accept risk), thereby resolving the ease of operation issue while maintaining cost efficiency.

Inventive Principle:
Principle #25Self-service

2Reliability

If HTTPS communication is implemented with self-signed certificate, then security is improved, but certificate validation fails causing access warnings

Engineering Contradiction:
Improvecommunication securityVSAvoidweb page accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The intermediary application serves as a mediator that preserves HTTPS security while handling certificate validation issues. It detects certificate warnings, automatically accepts the self-signed certificate risk, and proceeds with secure communication, thus maintaining security benefits while ensuring accessible web page loading.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent converts the harmful effect of certificate validation failure into a benefit by automatically detecting the warning state and intelligently selecting the appropriate action (continue or accept risk). This transforms the security warning from an obstacle into a controlled process that maintains both security and accessibility.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Data Source

PatentUS20250301076A1Storage medium, control method for terminal apparatus, and terminal apparatus
Publication Date: 2025.09.25 CANON KK
  • US20250301076A1 patent drawing
  • US20250301076A1 patent drawing
  • US20250301076A1 patent drawing

AI summary

A non-transitory computer-readable storage medium stores a program for causing a terminal apparatus to communicate with an information processing apparatus to execute a method that includes receiving a first setting of the information processing apparatus, and displaying an object for accessing a web page for configuring a second setting of the information processing apparatus via a web browser, wherein, in the displaying, guide information about a warning displayed on the web browser is displayed by accessing the web page via the web browser.