Imaging Head Elevator for Media Collision Protection
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Solution Overview
Problem
Print quality is compromised and imaging heads are at risk of damage due to irregularly thick, multiple, or bent media crashing into the imaging head in printing systems, as existing technologies fail to effectively manage varying media thickness and irregularities.
Innovation Solution
A printing system with an elevator and imaging head support mechanism that automatically adjusts the imaging head's position relative to the media, decoupling during collisions to prevent damage, and includes a sensor and controller for height adjustment, collision detection, and media thickness calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the imaging head is positioned close to the media for optimal print quality, then print quality is improved, but the risk of damage from media irregularities increases
Solution Approach 1:
The imaging head positioning system transitions from a static fixed position to a dynamic adjustable position. The elevator mechanism enables the imaging head to be raised or lowered based on media thickness variations, allowing the system to maintain optimal printing distance while avoiding damage from irregular media surfaces.
Solution Approach 2:
The elevator mechanism serves as an intermediary between the imaging head and the media. It provides a controlled adjustment interface that allows the imaging head to adapt to media irregularities without direct contact or damage, mediating the interaction between the printing system and variable media conditions.
2Device complexity
If a fixed imaging head position is used, then the device complexity is reduced, but the ability to handle varying media thickness is compromised
Solution Approach 1:
The system introduces dynamic adjustability through the elevator mechanism, which can raise or lower the imaging head to accommodate varying media thickness. This transforms a static, simple structure into a dynamic system that adapts to different media conditions while maintaining manageable complexity.
Solution Approach 2:
The imaging head position parameter is made variable rather than fixed. The elevator mechanism changes the vertical position parameter of the imaging head based on detected media thickness, allowing the system to handle diverse media types without requiring complete redesign for each media variation.
3Device complexity
If manual positioning adjustment is used, then the device complexity is minimized, but the productivity and precision of print quality maintenance are reduced
Solution Approach 1:
The system implements a feedback loop where sensors detect media thickness and position information, the controller processes this data, and the elevator mechanism automatically adjusts the imaging head position accordingly. This closed-loop feedback system maintains optimal print quality automatically, significantly improving productivity compared to manual adjustment while keeping the overall device complexity manageable.
Solution Approach 2:
The imaging head positioning system performs self-adjustment based on sensor input and controller processing. The system automatically detects media conditions and adjusts its own position without requiring external manual intervention, enabling continuous operation at optimal print quality settings and enhancing productivity.
4Duration of action of moving object
If the imaging head remains in contact with irregular media, then continuous printing is maintained, but damage to the imaging head occurs
Solution Approach 1:
The elevator mechanism enables dynamic vertical movement of the imaging head, allowing it to maintain appropriate distance from irregular media surfaces. This dynamic adjustment ensures continuous printing operation while preventing damage by avoiding forced contact with bent or thick media sections.
Solution Approach 2:
The system proactively adjusts the imaging head position before potential damage can occur. By continuously monitoring media position and thickness, the elevator mechanism raises or lowers the imaging head in advance to prevent contact with irregular media surfaces, cushioning against potential damage before it happens.
Data Source
AI summary
Various embodiments of an apparatus and method for lifting an imaging head are disclosed.