Sheet Stacking Section for Image Processing Apparatus

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Solution Overview

Problem

The existing image processing apparatuses face issues with managing sheet storage, where too many sheets in the supplying section cannot be processed until started, and the receiving section becomes full, leading to inefficiencies in image erasing and reuse processes.

Innovation Solution

The apparatus includes a sheet stacking section that functions as both a supplying and receiving section, with conveyance paths and switching members controlled by a processor to manage sheet flow, determining reusability, and routing sheets to appropriate trays based on user settings and sensor inputs, ensuring optimal storage and processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If sheets are accumulated in the supplying section, then the apparatus can process batches of sheets, but the sheets cannot be processed until the start button is pressed, leading to idle time and reduced productivity

Engineering Contradiction:
Improvenumber of sheets in supplying sectionVSAvoidprocessing efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The apparatus performs preliminary actions by automatically conveying sheets from the supplying section to the receiving section before the user presses the start button. The control section detects the number of sheets and initiates automatic conveyance, so that sheets are pre-positioned and ready for processing without waiting for manual intervention, thus eliminating idle time and improving productivity

Inventive Principle:
Principle #10Preliminary action

2Quantity of substance

If the receiving section is used to store erased sheets, then processed sheets can be collected, but the section becomes full and cannot accommodate more sheets, halting the processing workflow

Engineering Contradiction:
Improvenumber of sheets in receiving sectionVSAvoidcontinuous processing capability
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The control section continuously monitors the number of sheets in the receiving section and provides feedback to adjust the conveyance operation. When the receiving section approaches full capacity, the system automatically controls the conveyance section to stop or redirect sheet flow, preventing overflow and ensuring continuous processing by managing sheet accumulation dynamically based on real-time capacity status

Inventive Principle:
Principle #23Feedback

3Device complexity

If a single stacking section serves both as supplying and receiving section, then device complexity is reduced, but sheet management becomes more complex requiring precise control mechanisms

Engineering Contradiction:
Improvenumber of stacking sectionsVSAvoidsheet flow management
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The single stacking section is designed to perform multiple functions: it serves as both the supplying section (feeding sheets to the conveyance system) and the receiving section (collecting processed sheets). The control section intelligently manages the dual role by detecting sheet positions and controlling the conveyance section to appropriately direct sheets, thereby reducing overall device complexity while maintaining ease of operation through automated control

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

This solution allows for efficient management of sheet storage, preventing overloading in the supplying section and ensuring that sheets can be processed and stored appropriately, enhancing the usability and efficiency of the image processing apparatus.

Implementation Method 1

An erasing apparatus that erases an image formed with an erasable toner or ink by heating the image to a given temperature so that the image can be erased and the sheet reused

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS9126786B2Image processing apparatus and method for guiding sheet
Publication Date: 2015.09.08 KK TOSHIBA
  • US9126786B2 patent drawing
  • US9126786B2 patent drawing
  • US9126786B2 patent drawing

AI summary

An image processing apparatus includes a supplying section from which a sheet placed thereon is supplied into the image processing apparatus, a processing section configured to execute an image processing on an image formed on a sheet, a first storing section configured to store a sheet, a second storing section configured to store a sheet, a first conveying section configured to convey a sheet placed on the supplying section to the first storing section through the processing section, and a second conveying section configured to convey a sheet passing through the processing section to the second storing section and convey a sheet stored in the second storing section to a position at which the sheet from the supplying section enters the processing section.