Printer Data Transfer Segmentation for Real-Time Control
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Solution Overview
Problem
High-capacity printing systems face challenges in real-time data transfer between processing units, especially when handling web-shaped substrate material, due to limitations in existing data interfaces like UP3I, which are not suitable for high-speed printing and are prone to electromagnetic interference and hardware compatibility issues.
Innovation Solution
Implementing a method that separates data into real-time and non-real-time components, using a switched network connection for non-real-time data and a real-time-capable data path for form-related paper travel information, with a CAN bus system or Ethernet connections for real-time processing, ensuring reliable and efficient data transfer between processing units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If UP3I data interface is used for data transfer between processing units, then data exchange is standardized and simplified, but real-time processing capability is insufficient and electromagnetic interference occurs
Solution Approach 1:
The patent segments the data transfer system into two separate channels: a real-time data transfer path for form-related paper travel information and a switched network connection for non-real-time data. This segmentation allows each channel to be optimized for its specific requirements, resolving the contradiction between standardization and real-time processing capability.
Solution Approach 2:
The patent introduces a data separation mechanism that acts as an intermediary between the UP3I interface and the processing units. This intermediary classifies and routes data appropriately, allowing the UP3I interface to maintain its standardized simplicity while the real-time data is handled through a dedicated real-time-capable path.
2Device complexity
If single data path is used for all data transfer, then device complexity is reduced, but real-time processing of paper travel information cannot be ensured
Solution Approach 1:
The patent divides the data transfer structure into two distinct paths: a real-time-capable path for form-related paper travel information that requires precise timing, and a switched network connection for non-real-time data. This segmentation enables precise paper travel control without significantly increasing overall system complexity.
Solution Approach 2:
The patent applies different quality characteristics to different data paths: the real-time path uses deterministic timing and low latency characteristics for critical paper travel information, while the switched network connection uses standard networking characteristics for non-critical data. This local differentiation of quality resolves the contradiction between simplicity and precision.
3Adaptability or versatility
If existing data interfaces are used in high-speed printing, then hardware compatibility is maintained, but electromagnetic interference and data transfer limitations occur
Solution Approach 1:
The patent segments data transfer into real-time and non-real-time paths, allowing the real-time path to use shielded cables and differential signaling that are less susceptible to electromagnetic interference, while the switched network connection handles non-critical data. This segmentation isolates the harmful electromagnetic interference to only the necessary minimum.
Solution Approach 2:
The patent introduces a data classification intermediary that separates real-time data from non-real-time data before transmission. This intermediary protects the real-time data path from electromagnetic interference by using dedicated wiring infrastructure and signaling methods that are more resistant to interference, while maintaining compatibility with existing hardware through the switched network connection for non-critical data.
Data Source
AI summary
In a method to transfer data between at least two processing units of a printing or copying system, processing information to be transferred between the at least two processing units is split up into first data and second data, the first data comprising at least form-related paper travel information for which a real-time processing is required, and the second data comprising processing information for which a real-time processing is not required. The at least two processing units are connected via a real-time-capable data transmission path for transferring the first data. The at least two processing units are also connected via a switched network connection that provides at least one physical layer to transfer data. The switched network connection is utilized to transfer the second data.