Toner Image Analysis for Thin-Line Foil Printing

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Solution Overview

Problem

The quality of foil images formed by gluing foil onto a sheet via a toner image is prone to degradation due to issues such as irregularity, disconnection, or breakage of thin lines, which are attributed to insufficient adhesive width or gap width in the toner image.

Innovation Solution

An image-forming apparatus is equipped with a control unit that analyzes the toner image for potential degradation in quality and issues an alert when thin lines or small gaps are detected, allowing users to modify the image before printing, thereby ensuring sufficient adhesive width and gap width.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If toner image is used as adhesive for gluing foil onto sheet, then foil printing can be achieved using general printer configuration, but quality of foil image may degrade due to insufficient adhesive width or gap width

Engineering Contradiction:
Improvefoil printing capabilityVSAvoidfoil image quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The system performs preliminary analysis of the toner image data before printing to detect thin lines and small gaps that may cause quality degradation. An alert is issued to the user in advance, allowing them to modify the image data before printing, thereby preventing quality issues rather than correcting them after the fact.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system provides feedback to the user about potential quality issues in the toner image by analyzing image data for thin lines and small gaps. This feedback mechanism allows users to adjust their design or printing parameters to avoid quality degradation, creating a closed-loop system that improves manufacturing precision.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If thin lines or small gaps are present in toner image, then design flexibility is maintained, but adhesive width or gap width becomes insufficient causing foil image degradation

Engineering Contradiction:
Improveimage design flexibilityVSAvoidadhesive width adequacy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system performs preliminary analysis of the toner image data before printing to detect thin lines and small gaps that may cause quality degradation. An alert is issued to the user in advance, allowing them to modify the image data before printing, thereby preventing quality issues rather than correcting them after the fact.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system takes preliminary anti-action by detecting and alerting about potential quality problems (thin lines and small gaps) before they manifest as actual foil image degradation. This allows users to take corrective action in the design phase rather than dealing with defective prints.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS20250314996A1Image-forming apparatus and foil printing system
Publication Date: 2025.10.09 CANON KK
  • US20250314996A1 patent drawing
  • US20250314996A1 patent drawing
  • US20250314996A1 patent drawing

AI summary

There is provided an image-forming apparatus including: an image-forming unit configured to form a toner image on a sheet based on image data; a setting unit configured to set a first mode to form the toner image for gluing a foil onto the sheet via the toner image; and a control unit configured to control a display unit to display an alert depending on a shape of the toner image to be formed by the image-forming unit in a case where the first mode is set by the setting unit.