Medium Supply System Air Direction Control for Separation Accuracy

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Solution Overview

Problem

Existing medium supply systems face erroneous determinations when trying to separate stacked recording media due to changes in air supply direction, leading to unsuitable images for determining separation.

Innovation Solution

A medium supply system that includes a supply unit to float and separate recording media by changing air supply direction, an imaging unit to capture images, and a processor to determine separation using suitable images, along with a shutter and detection unit to adjust air flow direction and position, ensuring accurate separation determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If air supply direction is changed to float and separate recording media, then separation effectiveness is improved, but determination accuracy deteriorates due to erroneous images being captured

Engineering Contradiction:
Improveseparation effectivenessVSAvoiddetermination accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The system performs preliminary action by capturing images at specific air supply directions before making separation determination. The control unit captures images when the air supply direction is in a predetermined direction suitable for determination, rather than using all captured images from various directions. This preliminary selection of appropriate images prevents erroneous determinations while maintaining effective separation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system applies local quality by using different air supply directions for different purposes: one direction optimized for floating and separating recording media, and another predetermined direction optimized for capturing images suitable for separation determination. This localized optimization resolves the contradiction between separation effectiveness and determination accuracy.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If air is supplied from edge side to float recording media, then separation is achieved, but image quality for determination deteriorates when supply direction changes

Engineering Contradiction:
Improveseparation operationVSAvoidimage quality for determination
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The control unit performs preliminary action by capturing images at a predetermined air supply direction that is suitable for separation determination before making the determination. This ensures that high-quality images are captured at the appropriate moment, maintaining both ease of operation and measurement precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses periodic action by supplying air in different directions at different times: first in a direction suitable for floating and separating recording media, then in a predetermined direction suitable for capturing determination images. This periodic switching of air supply directions ensures both separation effectiveness and determination accuracy.

Inventive Principle:
Principle #19Periodic 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 system effectively suppresses erroneous determinations by capturing images suitable for separation assessment, improving determination accuracy and simplifying control processes, while preventing overlap-feeding and image formation issues.

Implementation Method 1

a supply unit that supplies air to a plurality of stacked recording media while changing a supply direction from an edge side of the recording media to float and separate the recording media

Methodology Applied
Scientific EffectAir flow:

Implementation Method 2

an imaging unit that captures images of the plurality of recording media to which the air is supplied by the supply unit from the edge side

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS20240425313A1Medium supply system and image forming system
Publication Date: 2024.12.26 FUJIFILM BUSINESS INNOVATION CORP
  • US20240425313A1 patent drawing
  • US20240425313A1 patent drawing
  • US20240425313A1 patent drawing

AI summary

A medium supply system includes: a supply unit that supplies air to a plurality of stacked recording media while changing a supply direction from an edge side of the recording media to float and separate the recording media; an imaging unit that captures images of the plurality of recording media to which the air is supplied by the supply unit from the edge side; and at least one processor, wherein the processor determines separation of the recording media using an image suitable for determining the separation of the recording media among the images captured by the imaging unit.