Belt Unit Lifetime Display for Integrated Toner Container Maintenance

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Solution Overview

Problem

In image forming apparatuses with integrated collected toner containers within belt units, users cannot easily distinguish between the remaining lifetimes of the belt unit and the collected toner container, leading to confusion during maintenance and exchange.

Innovation Solution

The apparatus includes first and second acquiring portions to determine the remaining lifetimes of the belt unit and collected toner container, respectively, and a processing portion to notify users of this information through a display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the collected toner container is integrated inside the belt unit, then the apparatus size is reduced and exchange frequency is lowered, but the user cannot distinguish between the remaining lifetimes of the belt unit and the collected toner container

Engineering Contradiction:
Improveapparatus sizeVSAvoidremaining lifetime information distinction
Core Design Contradiction:
Volume of moving objectVSLoss of information

Solution Approach 1:

The patent applies color changes by displaying remaining lifetime information in different colors or with different visual intensities. The display unit presents the remaining lifetime of the belt unit and the collected toner container in a distinguishable manner, allowing users to clearly differentiate between the two consumable components even though they are integrated in the same belt unit.

Inventive Principle:
Principle #32Color changes

2Ease of operation

If the collected toner container is integrated inside the belt unit, then exchange operations are simplified, but maintenance information becomes confusing for users

Engineering Contradiction:
Improveexchange operationVSAvoidmaintenance information clarity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent applies segmentation by dividing the remaining lifetime information display into separate, distinct segments. The display unit shows the remaining lifetime of the belt unit and the collected toner container as separate information elements, allowing users to understand each component's status independently while maintaining the integrated physical structure for simplified exchange operations.

Inventive Principle:
Principle #1Segmentation

3Loss of information

If separate display of remaining lifetimes is provided, then user confusion is reduced, but the apparatus complexity increases

Engineering Contradiction:
Improveremaining lifetime information clarityVSAvoiddisplay system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent applies universality by designing the display unit to perform multiple functions: it displays both the remaining lifetime of the belt unit and the remaining lifetime of the collected toner container within a single interface. This multi-functional display approach provides clear information distinction without requiring separate display systems, thereby avoiding increased apparatus complexity.

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

Data Source

PatentUS20260010106A1Image forming apparatus
Publication Date: 2026.01.08 CANON KK
  • US20260010106A1 patent drawing
  • US20260010106A1 patent drawing
  • US20260010106A1 patent drawing

AI summary

An image forming apparatus includes an image forming portion for forming a toner image on an image bearing member; a belt unit including an endless belt onto which the toner image is transferred from the image bearing member and a collected toner container provided in a region constituted by an inner peripheral surface of the belt and for accommodating toner collected in the main assembly; a first acquiring portion for acquiring a value relating to a remaining lifetime of the belt; a second acquiring portion for acquiring a value relating to a remaining lifetime of the collected toner container; and a processing portion for executing processing for notifying information on a remaining lifetime of the belt unit on the basis of a first acquisition result by the first acquiring portion and a second acquisition result by the second acquiring portion.