Ink Cartridge Adapter for Optical Detection and Inventory Simplification

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Solution Overview

Problem

The existing inkjet recording systems require multiple types of ink cartridges due to varying ink characteristics, leading to increased manufacturing costs and inventory complexity, as the information about ink cartridges, such as color or country of sale, is encoded in their shape or physical structure, necessitating different cartridges for each variation.

Innovation Solution

A system where a common ink cartridge is used with an adapter that carries the necessary information about the ink cartridge's characteristics, allowing the recording apparatus to determine the type of ink and its amount using optical sensors, thereby enabling the use of a single cartridge for different ink types and countries.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple types of ink cartridges are manufactured to carry different information (color, country, etc.), then the recording apparatus can accurately detect and determine ink characteristics, but the manufacturing cost increases and inventory control becomes complicated

Engineering Contradiction:
Improvedetection accuracy of ink characteristicsVSAvoidinventory management complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system separates the information-carrying function from the ink storage function. The ink cartridge body remains standardized for ink storage, while a separate adapter component contains the information identification features (protrusions, recesses, optical characteristics). This segmentation allows the same cartridge to work with different adapters for various ink types, eliminating the need to manufacture multiple cartridge variants.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An adapter component serves as an intermediary between the standardized ink cartridge and the recording apparatus. The adapter carries the information about ink characteristics through its physical structure (protrusions, recesses, optical properties) and mediates the interaction between the cartridge and the detection system, allowing the apparatus to identify ink type without requiring multiple cartridge designs.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If multiple types of ink cartridges are manufactured with different shapes or physical structures to encode information, then the recording apparatus can determine ink characteristics, but the manufacturing cost increases

Engineering Contradiction:
Improvedetection accuracy of ink characteristicsVSAvoidmanufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The system divides the cartridge system into a standardized ink storage component and a separate information-carrying adapter. This allows mass production of a single cartridge design while producing smaller, less expensive adapters in various configurations to represent different ink characteristics, significantly reducing manufacturing costs compared to producing multiple full cartridge variants.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of creating entirely different cartridge designs for each ink type, the system uses a standardized cartridge template that can be paired with different adapters. The adapters are simplified copies or variations of the information-encoding mechanism, requiring fewer resources to manufacture than full cartridge assemblies.

Inventive Principle:
Principle #26Copying

3Device complexity

If a common ink cartridge is used for different ink types, then manufacturing cost and inventory complexity are reduced, but the recording apparatus cannot distinguish between different ink characteristics

Engineering Contradiction:
Improveinventory management simplicityVSAvoiddetection accuracy of ink characteristics
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The adapter acts as an information intermediary that attaches to the common cartridge and provides the distinguishing features needed for detection. The recording apparatus detects characteristics of the adapter (not the cartridge itself) to determine ink type, allowing a single cartridge design to serve multiple ink types while maintaining accurate detection capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system changes the detection parameter from examining the cartridge body to examining the adapter component. The adapter introduces variable physical parameters (presence/absence of protrusions, optical properties, magnetic properties) that encode ink characteristics, enabling the apparatus to distinguish between different ink types using a common cartridge design.

Inventive Principle:
Principle #35Parameter changes

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 simplifies inventory management and reduces manufacturing costs by allowing a single common ink cartridge to be used across different ink types and regions, while ensuring accurate ink detection and supply.

Implementation Method 1

The physical property, e.g., light reflectance, of the particular portion of the ink cartridge varies from one ink cartridge to another, depending on the characteristic of the ink cartridge. By detecting the particular portion of the ink cartridge, the recording apparatus determines the characteristic of the ink cartridge.

Methodology Applied
Scientific EffectLight reflectance: Reflection

Data Source

PatentEP2335929B2System and use of an adapter for ink cartridge
Publication Date: 2019.07.17 BROTHER KOGYO KK
  • EP2335929B2 patent drawingFigure 1
  • EP2335929B2 patent drawingFigure 2(A)~2(B)
  • EP2335929B2 patent drawingFigure 3(A)~3(B)

AI summary

An adapter for an ink cartridge which is configured to be mounted to a cartridge mounting portion of a recording apparatus, includes a main body and a particular portion positioned at the main body. The particular portion has information about the ink cartridge which is to be used with the adapter in the cartridge mounting portion, and the particular portion is configured to block light emitted from a particular optical sensor of the cartridge mounting portion when the adapter is inserted into the cartridge mounting portion. The adapter and the ink cartridge are separate members.