Print Controller JDF Processing Shift
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Solution Overview
Problem
Present printing systems overload the host system when processing Job Definition Format (JDF) job tickets and transmitting large printable files, leading to network congestion and inefficient resource utilization.
Innovation Solution
Processing JDF job tickets is shifted from the host system to the printing system, where a print controller with a JDF interpreter identifies and executes printing parameters, relieving the host system's processing burden and reducing network traffic by handling large files locally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the host system processes JDF job tickets and generates printable files with prepended printing parameters, then the printing parameters are correctly identified and applied, but the host system becomes overloaded and network resources are congested
Solution Approach 1:
The patent extracts the JDF job ticket processing function from the host system and relocates it to the printing system. The host system only transmits the JDF job ticket and printable file to the printing system, where a dedicated JDF interpreter processes the job ticket to identify printing parameters. This extraction relieves the host system of heavy processing burden while ensuring accurate printing parameter identification through specialized processing in the printing system.
2Reliability
If the host system transmits large printable files over the network, then the printing system receives complete files for processing, but network congestion occurs and network resources are wasted
Solution Approach 1:
The patent extracts the file processing function from the network transmission path and relocates it to local storage in the printing system. The host system transmits only the essential JDF job ticket and file location information to the printing system, which then accesses and processes the printable file locally from its own storage system. This eliminates the need to transmit large printable files over the network, preventing congestion and conserving network resources while maintaining complete file availability for processing.
3Extent of automation
If the print controller stores and buffers sheetside bitmaps, then the printing system can control the imaging process, but storage capabilities are consumed and memory resources are used
Solution Approach 1:
The patent extracts the bitmap generation and storage function from the print controller and relocates it to the host system. The host system generates the sheetside bitmaps and transmits them directly to the print controller for immediate imaging, bypassing the need for the print controller to store or buffer large bitmap data. This extraction maintains full automation of the printing process control while significantly reducing the storage capacity requirements of the printing system.
Data Source
AI summary
Print controllers and associated methods of processing JDF job tickets in a printing system are disclosed. A print controller in one embodiment includes a storage system that receives a printable file from a host system, and stores the printable file. The print controller further comprises a JDF interpreter that receives a Job Definition Format (JDF) job ticket that is associated with the printable file from the host system. The JDF interpreter parses the JDF job ticket to identify printing parameters defined for the printable file. The JDF interpreter then issues device control commands for the printing parameters in the JDF job ticket. Thus, JDF job ticket processing is performed in the printing system instead of in the host system.