Image Forming Transfer Control for Overheight Objects

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Solution Overview

Problem

Existing image forming systems face damage to transfer units due to objects with heights exceeding acceptable limits during transport, leading to collisions with the transfer belt.

Innovation Solution

An image forming system with a transfer unit, transporter, and raising/lowering unit that adjusts object height before transport to prevent collisions, using sensors to detect and stop transport if the object's height exceeds a predetermined threshold.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If objects with varying heights are transported to the transfer unit, then the system can handle diverse objects, but objects exceeding height limits may collide with the transfer belt causing damage

Engineering Contradiction:

Improveability to handle objects of various heightsVSAvoidrisk of damage to transfer unit

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs height detection and evaluation before the transport operation to the transfer unit. The processor determines whether the object's height exceeds the acceptable limit and stops transport if necessary, preventing potential collisions with the transfer belt before they can occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses a detection unit to measure the object's height and provides feedback to the processor. Based on this feedback, the processor makes a decision to either proceed with transport or stop it, creating a closed-loop control system that adapts to the actual object dimensions.

Inventive Principle:

Principle #23Feedback

2Reliability

If height detection and evaluation is performed before transport, then damage to the transfer unit is prevented, but the system complexity increases

Engineering Contradiction:

Improveprotection of transfer unit from damageVSAvoidaddition of detection unit and control logic

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical height adjustment mechanisms with a simpler detection-and-stop approach. Instead of mechanically adapting the transport system to various heights, a detection unit measures height and the processor controls transport accordingly, reducing mechanical complexity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12461478B2Image forming system

Publication Date: 2025.11.04 FUJIFILM BUSINESS INNOVATION CORP

AI summary

An image forming system includes: a transfer unit that transfers an image onto an object; a transporter that transports the object in the horizontal direction; a raising/lowering unit that raises and lowers the object in the vertical direction; and a processor configured to: after height adjustment performed by the raising/lowering unit, if the object has a top whose height is greater than a predetermined height when the object is to be transported to the transfer unit, stop the transport of the object to the transfer unit.