Image-Forming Apparatus Part History for Accurate Value Assessment

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Solution Overview

Problem

Existing systems fail to accurately account for the differences in performance and lifetime of genuine, recycled, and non-genuine replaceable parts in image-forming apparatuses, leading to inconsistencies in the value assessment of used image-forming apparatuses.

Innovation Solution

An information provision system and method that tracks the history of part replacements and generates state information based on the performance and lifetime of replaceable parts, including genuine, recycled, and non-genuine products, using a database to provide users with accurate value assessments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If wear level is reset to zero when a part is replaced, then the apparatus can continue operation, but differences in lifetime and performance specific to the part type are not taken into account

Engineering Contradiction:
Improveapparatus operation continuityVSAvoidvalue information accuracy
Core Design Contradiction:
Duration of action of stationary objectVSMeasurement precision

Solution Approach 1:

The patent segments the value assessment by tracking each replaceable part individually with unique identifiers. Instead of treating the apparatus as a whole with a single wear level, it divides the assessment into discrete part-level evaluations, allowing genuine, recycled, and non-genuine parts to be tracked and assessed separately with their specific performance characteristics.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the assessment parameter from a generic wear level reset to zero, to a part-specific remaining lifetime and performance evaluation. By storing part type information (genuine, recycled, non-genuine) and calculating remaining lifetime based on installation date and part-specific characteristics, the system provides accurate value information that reflects actual part performance rather than uniform wear metrics.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If value information is provided only to collection service providers, then the technology is simple to implement, but users cannot determine appropriate value for the apparatus

Engineering Contradiction:
Improvesystem implementation simplicityVSAvoiduser decision-making information
Core Design Contradiction:
Ease of manufactureVSLoss of information

Solution Approach 1:

The patent creates a universal information provision system that serves multiple functions and multiple users. The same database and evaluation mechanism that tracks part wear levels also generates value information accessible to both collection service providers and end users. The system provides part replacement history, remaining lifetime estimates, and performance data that benefit all stakeholders in the apparatus lifecycle.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements a feedback loop where part performance data and replacement history are continuously recorded in a database, then fed back to users through the information provision unit. This feedback mechanism enables users to make informed decisions about apparatus value and part replacement timing, while also providing collection service providers with accurate data for their operations.

Inventive Principle:
Principle #23Feedback

3Quantity of substance

If genuine products are replaced with recycled or non-genuine products, then cost is reduced, but performance and output quality of the apparatus may change

Engineering Contradiction:
Improvepart replacement costVSAvoidapparatus performance consistency
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent enables the apparatus to self-monitor and self-report its own part configuration and performance status. Through built-in identification systems and database tracking, the apparatus automatically records which parts are genuine, recycled, or non-genuine, and provides this information to users without requiring external verification. This self-service approach allows users to understand the impact of part replacements on performance and make informed decisions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent creates a dynamic assessment system that adapts to different part types and their performance characteristics. Rather than treating all parts uniformly, the system dynamically adjusts remaining lifetime calculations and value assessments based on part type (genuine, recycled, non-genuine), installation date, and usage patterns. This dynamic approach accurately reflects the varying reliability and performance of different part categories.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4700488A1Information provision system and information provision method
Publication Date: 2026.02.25 CANON KK
  • EP4700488A1 patent drawingFigure 1
  • EP4700488A1 patent drawingFigure 2
  • EP4700488A1 patent drawingFigure 3

AI summary

There is provided an information provision system (10) including: a database (203, 603) configured to store history information indicating a replacement history of replaceable parts (90) constituting an image-forming apparatus (1); a generation means (312) configured to determine one or more parts currently constituting the image-forming apparatus from the history information and generate state information of the image-forming apparatus based on a state of the one or more parts; and an information provision means (212, 712) configured to provide the state information of the image-forming apparatus generated by the generation means to a user terminal (400), in response to a request from the user terminal.