Color-Coded Display for Original Size Detection Errors

Solution Overview

Problem

Existing image forming apparatuses fail to reliably alert users when the detected original size or type differs from the actual size or type placed on the original placement portion, leading to potential waste due to incorrect image formation.

Innovation Solution

An original reading apparatus with a display control portion that changes the color of the display screen based on the detected size and type of the original, using chromatic and achromatic colors to differentiate between correct and incorrect detections, and adjusting colors according to standard size series defined by ISO 216, to notify users of any discrepancies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the original size detecting portion detects the size of the original placed on the original placement portion, then the detection result is obtained, but the user cannot reliably notice whether the detected size matches the actual original size placed

Engineering Contradiction:

Improveuser awareness of detection accuracyVSAvoidreliability of size detection notification

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The display control portion changes the color of the display screen based on the detected original size. When the detected size matches the expected size, a first color is displayed; when the detected size differs from the actual original size placed, a second color is displayed. This color-coded feedback system enables users to reliably notice whether the detection is accurate without requiring detailed numerical comparisons.

Inventive Principle:

Principle #32Color changes

2Loss of substance

If the user discovers the size detection error after image formation, then the incorrect image is already produced, but reformation is needed causing waste

Engineering Contradiction:

Improverecording sheet wasteVSAvoidtime for reformation

Core Design Contradiction:

Loss of substanceVSLoss of time

Solution Approach 1:

The system performs size detection before image formation and provides immediate visual feedback through color changes on the display screen. This preliminary verification ensures that the original size is correctly identified before the image formation process starts, preventing incorrect images from being produced and eliminating the need for reformation and associated waste.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If the display screen shows the detected size information, then the user can see the detection result, but the user cannot easily notice whether the detected size is correct or not

Engineering Contradiction:

Improveease of noticing detection accuracyVSAvoidinformation about detection correctness

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The display control portion changes the color of the display screen based on the detected original size. When the detected size matches the expected size, a first color is displayed; when the detected size differs from the actual original size placed, a second color is displayed. This color-coded feedback system enables users to reliably notice whether the detection is accurate without requiring detailed numerical comparisons.

Inventive Principle:

Principle #32Color changes

Data Source

PatentUS8860968B2Original reading apparatus

Publication Date: 2014.10.14 SHARP KK

AI summary

An original reading apparatus provided with an original placement portion on which an original is place, and an original size/type detecting portion for detecting a size and/or a type of the original placed on the original placement portion, includes: a display portion that performs color display; and a display control portion that changes a color of a display screen displayed on the display portion based on the size and/or the type of the original detected by the original size/type detecting portion.