Image Forming Apparatus Automatic User Session Clearance

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Solution Overview

Problem

Image forming apparatuses lack efficient user authentication and session management, leading to inefficiencies in resource allocation and user access when an authenticated user leaves the device without proper clearance.

Innovation Solution

Incorporating an authenticating unit to verify user input information, a detecting unit to monitor user presence via a human sensor, and a clearing unit to automatically log out the user and manage job processing settings if the user departs, ensuring seamless access for other users and maintaining operational efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If user authentication is implemented without automatic clearance, then user security is improved, but device availability and operating efficiency deteriorate when users leave without logging out

Engineering Contradiction:
Improveuser securityVSAvoiddevice availability
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs automatic logout functionality without requiring user intervention. The detection unit monitors user presence and automatically triggers the clearing unit to logout users who have left the device, making the system self-managing regarding session clearance and eliminating the need for manual logout actions

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The detection unit continuously monitors user presence and provides feedback to the control unit. When the system detects that a user has left (via human sensor or cover sensor), it automatically initiates the logout process, creating a closed-loop feedback mechanism that maintains both security and availability

Inventive Principle:
Principle #23Feedback

2Reliability

If manual logout is required for each user, then authentication control is improved, but time loss and operational efficiency deteriorate

Engineering Contradiction:
Improveauthentication controlVSAvoidtime for user clearance
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs authentication control and session clearance actions automatically based on detected user presence. By using sensors to detect when users leave and automatically initiating logout, the system eliminates the time users would otherwise spend manually logging out, while maintaining proper authentication control through the automatic process

Inventive Principle:
Principle #10Preliminary action

3Reliability

If user sessions are not automatically cleared, then user access control is improved, but resource allocation efficiency deteriorates

Engineering Contradiction:
Improveuser access controlVSAvoidresource allocation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system automatically manages user sessions by detecting user presence and initiating logout when users leave. This self-service approach ensures that user access control is maintained through automatic session clearance, while simultaneously improving resource allocation efficiency by promptly releasing resources back to the system pool without manual intervention

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enhances user authentication and session management by ensuring timely clearance of user sessions, optimizing resource allocation and increasing operating efficiency by allowing other users to access the apparatus promptly.

Implementation Method 1

a human sensor that detects presence or absence of the authenticated user

Methodology Applied
Scientific EffectHuman sensor detection:

Data Source

PatentUS8988698B2Image forming apparatus, image forming method, and storage medium
Publication Date: 2015.03.24 FUJIFILM BUSINESS INNOVATION CORP
  • US8988698B2 patent drawing
  • US8988698B2 patent drawing
  • US8988698B2 patent drawing

AI summary

An image forming apparatus includes an authenticating unit that compares input identification information of a user with user information containing identification information of users and authenticates a user corresponding to the input identification information of the user; a detecting unit that detects that the authenticated user leaves the image forming apparatus; and a clearing unit that clears the authenticated state of the authenticated user if the detecting unit detects that the authenticated user leaves the image forming apparatus.