Dual Controller Arbitration for Shared Printer Paper Path
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Printing devices with multiple units face performance degradation and increased manufacturing costs due to the use of a single controller for managing all units, especially when handling large amounts of graphic data.
Innovation Solution
Implementing two independent controllers for each printer that share a common paper path, allowing them to arbitrate exclusive access and operate independently, reducing the control load and enabling efficient printing operations without performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single controller is used to control multiple printing units, then the device complexity is reduced, but the printing performance degrades with increased printing data
Solution Approach 1:
The patent divides the control system into multiple independent controllers, with each controller dedicated to a specific printing unit. This segmentation allows each controller to handle printing data independently without being burdened by other printing units, thereby maintaining high printing performance even when handling large amounts of graphic data.
2Productivity
If a high-performance controller is used to maintain printing performance, then the printing performance is improved, but the manufacturing costs increase
Solution Approach 1:
By segmenting the control system into multiple independent controllers, each controller can be designed with simpler specifications suitable for its specific printing unit. This eliminates the need for an expensive high-performance controller that would be required if a single controller had to handle all printing units simultaneously, thereby reducing manufacturing costs while maintaining printing performance.
3Device complexity
If multiple printing units share a common paper path, then the device complexity is reduced, but the control coordination becomes more difficult
Solution Approach 1:
The patent implements a feedback mechanism where each controller communicates the status of its printing unit and the paper path to a central control system. The central control system coordinates paper path allocation and printing operations based on real-time feedback from all controllers, ensuring efficient resource utilization and avoiding conflicts even though multiple units share a common paper path.
Data Source
AI summary
According to one embodiment, a printing device may include first and second printers respectively having first and second controllers. The first and second printers may be configured to share a common paper path with each other. The first controller in the first printer may enable the first printer to operate if the common paper path is not in use by the second printer. In this case, the first controller may inform the second printer that the common paper path is in use by the first printer. On the other hand, the second controller in the second printer may enable the second printer to operate if the common paper path is not in use by the first printer. In this case, the second controller may inform the first printer that the common paper path is in use by the second printer.