Printer
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Solution Overview
Problem
Existing printers face challenges in accurately detecting the height of fabric print targets, which can lead to interference with the printing head and excessive mist generation during printing.
Innovation Solution
The printer incorporates a height detector system with two detection levels, allowing it to accurately determine the height of the fabric by emitting and receiving light at specific heights, thereby preventing head interference and mist generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single height detector is used, then the device complexity is reduced, but the measurement precision of fabric height is insufficient leading to head interference
Solution Approach 1:
The detection system is segmented into two separate height detectors positioned at different heights (first height and second height). This segmentation allows the system to detect fabric height more accurately by checking multiple elevation levels, preventing head interference while maintaining manageable system complexity through modular detection components.
2Manufacturing precision
If the printing head moves closer to the fabric, then the manufacturing precision improves, but the reliability decreases due to potential interference
Solution Approach 1:
The height detectors perform preliminary detection of fabric height before the printing head approaches. By detecting the fabric position at two different heights in advance, the system can determine the optimal safe distance and prevent interference, allowing the printing head to operate at optimal precision distances without compromising reliability.
3Reliability
If the carriage movement is stopped frequently, then the reliability improves by preventing interference, but the productivity decreases
Solution Approach 1:
The dual height detection system provides continuous feedback about fabric position to the control mechanism. This feedback allows the system to maintain reliable operation by knowing the exact fabric height, enabling the carriage to move continuously at optimized speeds without frequent stopping, thus improving productivity while maintaining reliability through real-time position monitoring.
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 enables precise control of the printing process, preventing head interference and maintaining an optimal gap for ink discharge, thus ensuring efficient and accurate printing on fabric targets.
Implementation Method 1
a height detector configured to detect the print target on the holder at a first height and at a second height lower than the first height
Data Source
AI summary
A printer includes a liquid discharge head configured to discharge a liquid to a print target, a holder configured to hold the print target, and a height detector configured to detect the print target on the holder at a first height and at a second height lower than the first height.