Moveable Printheads for Adaptive Printing Layouts
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Solution Overview
Problem
Current printing systems lack flexibility in printhead arrangement, which limits their ability to adapt to different printing operations and can result in reduced image quality due to printhead misalignment and the need for additional passes when printing with white ink.
Innovation Solution
A printing system carriage with moveable printheads and a positioning mechanism that allows printheads to change positions based on triggering signals, such as changes in print mode, enabling flexible layout configurations and maintaining relative positions during carriage movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If printheads are fixed in the carriage, then the printing system is simpler and more stable, but the flexibility to adapt to different printing operations is reduced
Solution Approach 1:
The patent implements moveable printheads that can dynamically change their positions within the carriage based on different printing operations. The printheads are no longer fixed but can be repositioned along the carriage, allowing the system to adapt to various printing modes (such as single-pass vs. multi-pass white ink printing) while maintaining operational stability through controlled positioning mechanisms.
2Manufacturing precision
If printheads are arranged in fixed layouts, then the device structure is simpler, but image quality deteriorates due to printhead misalignment
Solution Approach 1:
The patent incorporates a control system that receives triggering signals (such as print mode changes) and automatically adjusts printhead positions to maintain optimal alignment. This feedback mechanism ensures that printheads are correctly positioned for different printing operations, preventing misalignment issues that would degrade image quality while managing complexity through automated control.
3Productivity
If white ink printing uses additional passes, then print quality can be maintained, but printing productivity decreases
Solution Approach 1:
The patent enables the printhead to be repositioned in advance based on the printing operation type. For white ink printing, the system can pre-position the printhead optimally before the printing operation begins, allowing for high-quality single-pass printing when needed. This preliminary positioning action eliminates the need for additional corrective passes, thereby maintaining both print quality and productivity.
Data Source
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Figure 3A
AI summary
An example of a printing carriage system is disclosed. The example disclosed herein comprises a plurality of printheads, and a positioning mechanism. The plurality of printheads comprises a moveable printhead that is moveable with respect to other printheads from the plurality of printheads. The positioning mechanism is to move the moveable printhead from a first printhead position to a second printhead position.