Image Forming Apparatus Undecolored Paper Detection
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Solution Overview
Problem
Image forming apparatuses face the challenge of printing on undecolored paper when decoloring processing is stopped, leading to leftover undecolored paper in the cassette, which can result in unintended image formation.
Innovation Solution
The apparatus includes a paper feed section and a processing section that executes decoloring processing and issues a warning when undecolored paper is detected, ensuring it is removed before resuming operations, using a heating section to decolorize paper by setting it to a specific temperature and conveying it through a conveyance system controlled by a system controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If decoloring processing is stopped during execution, then the processing section can be idle or perform other tasks, but undecolored paper remains in the cassette and may be printed on unintentionally
Solution Approach 1:
The system continuously monitors the decoloring processing status and paper presence in the cassette. When decoloring is stopped or completed, the system detects remaining undecolored paper and provides feedback through warnings to the user, ensuring that printing operations are blocked until the paper is removed or decoloring is completed.
Solution Approach 2:
The system performs preliminary detection of undecolored paper after decoloring processing is stopped or completed. By detecting the presence of undecolored paper before initiating new printing operations, the system prevents unintended printing on undecolored paper through advance warning and blocking mechanisms.
2Reliability
If the system continuously monitors for undecolored paper, then printing accuracy is improved, but device complexity increases
Solution Approach 1:
The system uses the existing control unit to perform multiple functions: managing decoloring processing, detecting undecolored paper, issuing warnings, and controlling printing operations. By making the control unit multi-functional, the system achieves continuous monitoring without adding separate dedicated monitoring hardware, thus avoiding increased device complexity.
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
Prevents unintended image formation on undecolored paper by ensuring it is decolorized and removed, maintaining operational integrity and user safety by displaying warnings and controlling the decoloring process effectively.
Implementation Method 1
a heating section that heats the undecolored paper
Data Source
AI summary
An image forming apparatus includes a paper feed section and a processing section. The paper feed section stores paper. The processing section executes a decoloring processing for decolorizing an undecolored paper stored in the paper feed section, and issues a warning indicating that the paper stored in the paper feed section is taken out when the decoloring processing is stopped, or does not issue the warning when the decoloring processing is completed.