Edge-Side Imaging for Fold Detection in Medium Supply Systems
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Solution Overview
Problem
Existing medium supply systems do not effectively prevent the supply of folded recording media, which can lead to image defects in image forming processes.
Innovation Solution
A medium supply system comprising imaging units that capture images of stacked recording media from the edge side and a processor that stops the supply of media when a fold is detected, using air supply units to float and separate sheets for accurate imaging and determination of folds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If medium supply is performed without fold detection, then supply speed is maintained, but image defects occur due to folded media
Solution Approach 1:
The imaging units capture images of the stacked recording media before supply to detect folds in advance. The processor analyzes these images and determines the presence of folds before the media is supplied to the image forming unit, allowing preventive action to be taken before defects occur.
Solution Approach 2:
The system uses imaging units to continuously monitor the stacked recording media and provides feedback to the processor. When folds are detected, the processor stops supply, creating a closed-loop control system that prevents defective media from being supplied while maintaining efficient operation during normal conditions.
2Measurement precision
If imaging is performed from edge side, then fold detection accuracy is improved, but system complexity increases
Solution Approach 1:
Instead of imaging the face of the recording media, the system images from the edge side, utilizing a different dimensional perspective. This edge-side imaging approach reveals fold characteristics that are not visible from the face, improving detection accuracy while using simple imaging units.
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 the supply of folded media to image forming units, enhancing the accuracy of fold detection and reducing image defects by using edge-side imaging and air supply to float sheets for precise examination.
Implementation Method 1
an air blowing section that blows air toward the stack of sheets placed on the tray to float at least a topmost sheet
Data Source
AI summary
A medium supply system includes: imaging units that capture images of a plurality of stacked recording media from an edge side of the recording media; and at least one processor, wherein the processor stops supply of the recording media when it is determined that a fold is generated in the recording media from the images captured by the imaging units.