Imaging System Independent Controller Coordination
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Solution Overview
Problem
Traditional printers rely on a single controller for both print head and substrate motion, limiting flexibility and scalability in printing applications.
Innovation Solution
The system separates motion control into independent first and second controllers for the print head and substrate, using communication modules to coordinate movements along the X and Y axes, allowing for flexible and scalable printing with multiple printers and a substrate unit communicating via USB or GPIO protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single controller is used to control both print head motion and substrate motion, then the device complexity is reduced, but the adaptability and versatility of the printing system are limited
Solution Approach 1:
The control system is segmented into separate first and second controllers. The first controller manages print head motion while the second controller manages substrate motion. This segmentation allows each controller to be optimized for its specific function, enabling greater system flexibility and adaptability without requiring a complete redesign of the entire control architecture.
Solution Approach 2:
The communication modules enable the controllers to coordinate their operations universally. The first controller can receive motion data from the second controller and adjust print head positioning accordingly, while the second controller can receive substrate motion data and coordinate its movements. This multi-functional communication capability allows the system to adapt to various printing configurations and substrate types.
2Productivity
If a single controller manages both print head and substrate motion, then the ease of operation is maintained, but the productivity and printing efficiency are reduced
Solution Approach 1:
The communication modules establish feedback loops between the first and second controllers. The first controller receives real-time data about substrate motion from the second controller and adjusts print head positioning accordingly. Similarly, the second controller receives feedback about print head position and coordinates substrate movement to maintain optimal printing conditions, thereby improving printing efficiency without complicating operation.
Solution Approach 2:
The controllers exchange motion data in advance before actual printing operations begin. The first controller receives substrate motion data from the second controller prior to printing, allowing it to pre-coordinate print head positioning. This preliminary coordination reduces delays during printing and improves overall productivity while maintaining ease of operation.
3Adaptability or versatility
If motion control is separated into independent controllers, then the adaptability to different printing configurations is improved, but the device complexity increases
Solution Approach 1:
The communication modules are designed with universal functionality to handle multiple printing configurations. The first controller can communicate with the second controller to coordinate operations across multiple printers and substrates. This universal communication capability allows the system to adapt to different printing arrangements without requiring separate communication protocols for each configuration, thereby limiting the increase in device complexity.
Data Source
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Figure 5
AI summary
An imaging system for printing an image on a substrate. the imaging system comprises a printer having a first controller and a substrate unit having a second controller. The printer comprises a print head, printing image data in a swath along a first direction; the first controller, controlling a motion of the printer head in the first direction; and a first communication module, receiving communications to inform the first controller of printing of the swath is authorized, and sending communications to inform the second controller of printing of the swath is completed. The substrate unit comprises the second controller, controlling motion of the substrate in a second direction of the substrate; a second communication module, sending communications to inform the printer of printing of the swath is authorized, and receiving communications from the printer indicating that printing of the swath is completed.