Toner Supply Detection Unit for Improper Loading

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Solution Overview

Problem

Existing image forming apparatuses face difficulties in recognizing improper loading of toner supply devices, leading to potential damage and operational issues when noncompliant devices are used, as existing methods rely on physical interference which can be misleading and may apply unexpected forces.

Innovation Solution

Incorporating a detection unit and notification system that identifies the type of toner supply device and detects improper loading, allowing for easy recognition and prevention of damage by notifying the user of noncompliant or improperly loaded devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If physical interference method is used to determine properness of toner supply device, then noncompliant device is prevented from loading, but engineer cannot recognize noncompliant device being loaded and unexpected force may break the device

Engineering Contradiction:

Improveprevention of noncompliant device loadingVSAvoidrecognizability of noncompliant device

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical detection method (physical interference) with an optical detection system. A detection unit with light source and light receiver detects the presence and type of toner supply device through optical signals, allowing the control unit to identify noncompliant devices without physical contact or force application.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an optical intermediary (light signals) between the detection unit and the toner supply device. The detection unit sends light signals that are reflected or transmitted by the toner supply device, and the control unit interprets these optical signals to determine device compliance, serving as a non-contact intermediary detection method.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If joint portion shape differentiation is used to prevent noncompliant device loading, then properness is determined by physical interference, but engineer cannot recognize noncompliant device after cover door body is closed

Engineering Contradiction:

Improveprevention of improper loadingVSAvoidinformation about noncompliant device loading

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The patent implements a feedback system where the detection unit continuously monitors the toner supply device type, and the control unit provides real-time feedback to the notification unit. When a noncompliant device is detected, the notification unit immediately alerts the engineer, ensuring continuous information availability about device compliance throughout operation.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces mechanical shape-based detection with optical detection that can identify device type without physical contact. The detection unit uses light signals to determine device compliance, allowing continuous monitoring and information feedback without the limitations of post-closing recognition.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If cover door body is closed in state with noncompliant toner supply device loaded, then unexpected force is applied to toner supply device causing breakage, but engineer cannot recognize the issue

Engineering Contradiction:

Improveprevention of device breakageVSAvoiddetection of noncompliant device before closing

Core Design Contradiction:

ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent performs detection of toner supply device type before the cover door body is closed and before any force is applied. The detection unit scans the installed device, and the control unit determines compliance in advance, allowing the system to alert the engineer before closing occurs, thus preventing breakage through preliminary detection.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses optical detection instead of mechanical detection to identify noncompliant devices. This substitution allows detection to occur without physical contact or force application, eliminating the risk of breakage during the detection process itself and enabling safe preliminary identification of issues.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS8630553B2Image forming apparatus

Publication Date: 2014.01.14 KYOCERA DOCUMENT SOLUTIONS INC

AI summary

The present invention provides a detection unit that detects, regarding a toner supply device loaded into an installation space of an apparatus main body, a type of the toner supply device or detects improper loading of the toner supply device and a notification unit that notifies loading of the toner supply device of a wrong type or improper loading of the toner supply device based on a result of detection by the detection unit.