Dual Brilliant Toner Set for Specular Reflection

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Solution Overview

Problem

Existing toner sets used for electrophotographic image formation struggle to maintain brilliance due to disarray of brilliant pigments during the transfer and fixing process, leading to diffuse reflection and reduced image brilliance.

Innovation Solution

A toner set comprising a first brilliant toner and a second brilliant toner, both containing brilliant pigments, but with different colors, are used to ensure maximum charge cancellation and parallel orientation of pigments during transfer, resulting in specular reflection and enhanced brilliance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single brilliant toner is used, then the image formation process is simple, but the brilliance is reduced due to pigment disarray during transfer and fixing

Engineering Contradiction:

Improvetoner set compositionVSAvoidimage brilliance

Core Design Contradiction:

Device complexityVSIllumination intensity

Solution Approach 1:

The toner set is segmented into multiple brilliant toners (first brilliant toner and second brilliant toner) with different colors. Each toner contains brilliant pigments that maintain their orientation independently during the transfer and fixing processes, preventing the disarray that occurs with single-toner systems and thereby preserving image brilliance.

Inventive Principle:

Principle #1Segmentation

2Illumination intensity

If brilliant pigments are used to achieve metallic luster, then image brilliance is improved, but the pigments become disarrayed during transfer and fixing, reducing brilliance

Engineering Contradiction:

Improveimage brillianceVSAvoidpigment orientation

Core Design Contradiction:

Illumination intensityVSStability of the object's composition

Solution Approach 1:

The brilliant pigments are pre-oriented within the toner particles before the transfer and fixing processes. The toner formulation and particle structure are designed in advance to maintain this orientation stability, ensuring that the pigments remain aligned and produce consistent metallic luster throughout the image formation process.

Inventive Principle:

Principle #10Preliminary action

3Illumination intensity

If multiple brilliant toners of different colors are used, then secondary and combination color images exhibit enhanced brilliance, but the toner set complexity increases

Engineering Contradiction:

Improvebrilliance of secondary and combination color imagesVSAvoiddual brilliant toner set

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

Multiple brilliant toners of different colors (first brilliant toner and second brilliant toner) are combined in a single toner set. These toners work together synergistically, with their brilliant pigments maintaining parallel orientation during transfer and fixing, to produce secondary and combination color images with enhanced metallic luster and brilliance.

Inventive Principle:

Principle #5Merging (Combining)

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

The use of a dual brilliant toner set ensures that images exhibit brilliance similar to metallic luster by maintaining the orientation of brilliant pigments, thereby improving the brilliance of secondary and combination color images.

Implementation Method 1

maintaining the orientation of brilliant pigments, thereby improving the brilliance of secondary and combination color images

Methodology Applied

Scientific EffectSpecular reflection: Reflection

Data Source

PatentUS9557674B2Toner set, image forming apparatus, and image forming method

Publication Date: 2017.01.31 FUJIFILM BUSINESS INNOVATION CORP

AI summary

Provided is a toner set including at least a first brilliant toner that contains a brilliant pigment, and a second brilliant toner that contains a brilliant pigment and exhibits a different color from the first brilliant toner.