Ink Supply Device Cartridge Detection with Segmented Detectors

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Solution Overview

Problem

Existing ink supply devices face challenges in accurately detecting the type of ink cartridges due to variations in the positional relationship between detection target portions and detecting devices, particularly when the ink cartridges tilt or have detection target portions spaced far apart.

Innovation Solution

The implementation of an ink supply device with a controller, a cartridge mounting portion, and an ink cartridge featuring multiple detection target portions positioned strategically to ensure accurate detection by detectors, including a first, second, and third detection target portion, and corresponding detectors that output specific information to determine the ink cartridge type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If clearance is provided between the ink cartridge and cartridge mounting portion to facilitate insertion, then ease of operation is improved, but measurement precision deteriorates due to positional variations

Engineering Contradiction:
Improveease of insertionVSAvoiddetection accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The detection system is segmented into multiple independent detectors positioned at different locations (upper front, lower front, and front center). Each detector independently monitors a specific detection target portion, allowing the system to maintain detection accuracy despite positional variations caused by clearance during insertion.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If detection target portions are spaced far apart to enable type identification, then detection capability is improved, but reliability deteriorates due to positional variations and tilting

Engineering Contradiction:
Improvedetection capabilityVSAvoiddetection reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

Different detection target portions are strategically positioned at specific locations (upper front, lower front, and front center) with distinct local characteristics. Each portion corresponds to a dedicated detector, creating a localized detection system that maintains reliability even when the ink cartridge tilts or shifts during insertion.

Inventive Principle:
Principle #3Local quality

3Loss of information

If multiple detection target portions are positioned at different locations to determine ink cartridge type, then information completeness is improved, but device complexity increases

Engineering Contradiction:
Improveinformation completenessVSAvoiddetection system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The detection system uses multiple detectors that can serve multiple functions: each detector not only identifies the ink cartridge type but also determines the positional relationship between the ink cartridge and cartridge mounting portion. This multi-functionality reduces the need for separate detection mechanisms, thereby managing complexity while maintaining information completeness.

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

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 configuration ensures accurate detection and determination of the ink cartridge type, reducing errors caused by positional variations and facilitating correct ink supply and recording processes.

Implementation Method 1

The cartridge mounting portion comprises a first detector configured to detect the first detection target portion and to output first detection information when the first detector detects the first detection target portion

Methodology Applied
Scientific EffectOptical detection: Reflection

Data Source

PatentUS8157346B2Ink supply devices
Publication Date: 2012.04.17 BROTHER KOGYO KK
  • US8157346B2 patent drawing
  • US8157346B2 patent drawing
  • US8157346B2 patent drawing

AI summary

An ink supply device includes a controller, a cartridge mounting portion, and an ink cartridge. The cartridge mounting portion includes first, second, and third detectors configured to detect first, second, and third detection target portions of the ink cartridge and to output first, second, and third detection information, respectively. The controller is configured to execute a first process based on whether the first detection information and the second detection information are output when the third detection information is output during insertion of the ink cartridge into the cartridge mounting portion. A type of the ink cartridge is determined in the first process.