Image Forming System Grip Unit Association

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Solution Overview

Problem

Existing image forming systems lack the capability to efficiently associate a medium on which an image is formed with a specific grip unit, leading to challenges in identifying and replacing faulty grip units during the image formation process.

Innovation Solution

An image forming system that includes a transport device with multiple grip units, a formation device for creating images on the medium, and a processor that enables association of the medium with specific grip units through identification information, allowing for continued image formation even if a grip unit fails.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple grip units are used to transport medium, then transport capacity and productivity are improved, but it becomes difficult to identify and manage individual faulty grip units

Engineering Contradiction:
Improvetransport capacityVSAvoidfault detection difficulty
Core Design Contradiction:
ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The system associates each medium with the specific grip unit that transported it by recording identification information. This feedback mechanism allows the control device to track which grip unit handled which medium, enabling precise fault detection and identification of problematic grip units based on medium transport history.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary association mechanism between media and grip units through identification information. This intermediary layer enables indirect tracking and identification of grip units by examining the association data stored with each medium, making fault detection feasible without direct monitoring of each grip unit.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If grip units are frequently monitored and managed, then system reliability is improved, but device complexity and operational overhead increase

Engineering Contradiction:
Improvesystem reliabilityVSAvoidmanagement complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system automatically performs grip unit identification and fault detection by utilizing existing medium transport data and association information. The control device autonomously analyzes the stored associations to identify faulty grip units without requiring additional manual monitoring or complex management interventions, thus maintaining high reliability while minimizing operational overhead.

Inventive Principle:
Principle #25Self-service

3Ease of repair

If the loop member stops frequently for grip unit replacement, then ease of repair is improved, but productivity and throughput are reduced

Engineering Contradiction:
Improvegrip unit replaceabilityVSAvoidimage formation throughput
Core Design Contradiction:
Ease of repairVSProductivity

Solution Approach 1:

The system performs preliminary identification of faulty grip units by analyzing association information before actual replacement is needed. By proactively detecting which grip units are malfunctioning based on transport history, the system can plan replacements during scheduled maintenance windows rather than causing unexpected stoppages, thus improving ease of repair while minimizing productivity impact.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4517429A1Image forming system
Publication Date: 2025.03.05 FUJIFILM BUSINESS INNOVATION CORP
  • EP4517429A1 patent drawingFigure 1
  • EP4517429A1 patent drawingFigure 2
  • EP4517429A1 patent drawingFigure 3

AI summary

An image forming system includes: a transport device including a loop member that turns and that includes multiple grip units, the transport device transporting a medium that is gripped by the multiple grip units as the loop member turns; a formation device that forms an image on the medium that is transported by the transport device; and a processor configured to: cause the formation device to start image formation on a medium that is gripped by a specific grip unit of the multiple grip units in an association mode.