Color Erasing Apparatus Sheet Count Monitoring

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Solution Overview

Problem

Existing color erasing apparatuses face challenges in determining the optimal timing for cleaning the color erasing part, leading to reduced heating performance and potential failure in the color erasing process due to adhered recording material, which affects the reuse and quality of sheets.

Innovation Solution

A color erasing apparatus that includes a conveyance member, a color erasing part for removing color using heat, and a control part that monitors the number of processed sheets and notifies the user when the threshold for cleaning is reached, ensuring timely maintenance and preventing performance degradation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the color erasing part is used continuously without cleaning, then productivity is improved, but heating performance deteriorates due to adhered recording material

Engineering Contradiction:
Improvecontinuous operation capabilityVSAvoidheating performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The control part performs preliminary monitoring of the processed sheet count and issues a cleaning notification before heating performance significantly deteriorates. This allows users to clean the color erasing part proactively, preventing performance degradation and ensuring continuous reliable operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The control part tracks the number of processed sheets and provides feedback through cleaning notifications. This feedback mechanism enables users to understand when cleaning is needed, balancing continuous operation with maintenance requirements to maintain optimal heating performance.

Inventive Principle:
Principle #23Feedback

2Reliability

If cleaning notification is provided, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvecolor erasing process success rateVSAvoidcontrol mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control part automatically monitors the processed sheet count and generates cleaning notifications without requiring additional sensors or complex diagnostic systems. This self-service approach maintains reliability by tracking usage-based wear while keeping the device structure simple.

Inventive Principle:
Principle #25Self-service

3Reliability

If cleaning is performed frequently, then heating performance is maintained, but productivity decreases

Engineering Contradiction:
Improveheating performance consistencyVSAvoidsheet processing throughput
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system provides cleaning notifications at optimal intervals based on processed sheet count, enabling users to clean the color erasing part just in time before performance degradation occurs. This prevents both excessive cleaning that would reduce productivity and insufficient cleaning that would harm performance.

Inventive Principle:
Principle #10Preliminary action

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 apparatus effectively determines when the color erasing part requires cleaning, thereby maintaining its heating performance and ensuring successful color erasing processes, allowing for proper reuse and recycling of sheets.

Implementation Method 1

a color erasing part to erase a color of the coloring material of the image formed on the sheet conveyed by the conveyance member

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS8913287B2Color erasing apparatus and control method of the color erasing apparatus
Publication Date: 2014.12.16 KK TOSHIBA
  • US8913287B2 patent drawing
  • US8913287B2 patent drawing
  • US8913287B2 patent drawing

AI summary

A color erasing apparatus includes a conveyance member to convey a sheet on which an image is formed of a color erasable coloring material, a color erasing part to erase a color of the coloring material of the image formed on the sheet conveyed by the conveyance member, a control part that counts the processed number of sheets images of which are color-erased by the color erasing part and determines whether the processed number of sheets exceeds a previously set threshold, and a notification interface to output a signal for notifying that, cleaning of the color erasing part is required if the processed number of sheets exceeds the threshold.