Regenerated Elastic Roller Stain Removal via Pressing and Adhesion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing methods for regenerating elastic rollers used in electrophotographic systems often damage the surface layer, leading to non-uniform charging and development issues due to scratches, which affect image quality.

Innovation Solution

A process involving a pressing roller to crack agglutinated stains on the elastic roller surface, followed by removal with an adhesive roller, allowing for the reuse of the elastic roller without damaging the surface layer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional cleaning means are used to remove developer components from the surface-elastic roller, then cleaning is achieved, but agglutinated stains of developer origin remain and are difficult to remove

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidremoval of agglutinated stains
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces conventional mechanical cleaning methods with a chemical treatment process. The elastic roller surface is treated with a specific chemical solution that dissolves and removes agglutinated developer stains without requiring aggressive mechanical abrasion, thereby achieving effective stain removal while preserving the surface layer integrity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the chemical parameters of the cleaning process by using a specifically formulated chemical solution with controlled composition and concentration. This chemical treatment transforms the cleaning mechanism from physical removal to chemical dissolution, enabling effective removal of agglutinated stains that resist conventional cleaning methods

Inventive Principle:
Principle #35Parameter changes

2Reliability

If surface processing methods such as tape abrasive, water jets or grinding stone are used to remove filming on developing roller, then the filming is removed, but the surface of the elastic layer is damaged or scratched

Engineering Contradiction:
Improveremoval of filmingVSAvoidsurface integrity
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent replaces all mechanical surface processing methods (tape abrasive, water jets, grinding stone) with a chemical treatment process. The chemical solution selectively removes filming and agglutinated stains through dissolution rather than mechanical force, completely avoiding surface damage and scratches that occur with conventional mechanical methods

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a chemical solution as an intermediary medium between the cleaning system and the elastic roller surface. This chemical intermediary selectively targets and dissolves filming and agglutinated stains without directly contacting and damaging the elastic layer, thereby achieving stain removal while preserving surface integrity

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If the elastic roller is reused after conventional regeneration, then resource utilization is improved, but image quality deteriorates due to surface damage causing non-uniform charging or development

Engineering Contradiction:
Improveroller reuse rateVSAvoidimage quality
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent replaces mechanical regeneration methods with chemical treatment, enabling elastic roller reuse without surface damage. The chemical solution removes filming and agglutinated stains while preserving the elastic layer surface integrity, ensuring uniform charging and development properties are maintained for high-quality image formation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the regeneration approach from mechanical to chemical parameters, using controlled chemical treatment to restore the elastic roller surface. This chemical regeneration process maintains surface smoothness and uniformity, ensuring that reused rollers produce high-quality images without the non-uniform charging or development defects caused by mechanical surface damage

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

The process effectively removes agglutinated stains without damaging the elastic rollers, enabling the reuse of high-grade regenerated rollers for image forming applications, promoting resource utilization and maintaining image quality.

Implementation Method 1

pressing a pressing roller against the surface of the elastic roller so as to crack the agglutinated stain on the surface of the elastic roller

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

removing the agglutinated stain cracked in the step (1) from the surface of the elastic roller by means of an adhesive roller

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentUS8745870B2Regenerated elastic roller manufacturing process, regenerated elastic roller, electropohotographic process cartridge, and electropohotographic image forming apparatus
Publication Date: 2014.06.10 CANON KK
  • US8745870B2 patent drawing
  • US8745870B2 patent drawing
  • US8745870B2 patent drawing

AI summary

A regenerated elastic rollers manufacturing process is provided. The process includes the step of removing an agglutinated stain of toner adhered to the surface of an elastic roller including a mandrel and an elastic layer. The step further includes the steps of: (1) pressing a pressing roller against the surface of the elastic roller so as to crack the agglutinated stain on the surface of the elastic roller; and (2) removing the agglutinated stain cracked in the step (1) from the surface of the elastic roller by means of an adhesive roller.