Print File Preprocessing via Metadata Extraction
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Solution Overview
Problem
Poorly structured or complex print job files can cause print systems to pause printing due to the print controller's inability to process the job quickly enough, leading to suboptimal print output speed.
Innovation Solution
A system that includes one or more processors to receive a print job file, traverse subset ranges of the page content data to generate page element metadata, aggregate this metadata to create print job structure metadata, and store it separately from the print job file.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the print controller processes the entire print job file to identify page elements, then accurate page element identification is achieved, but processing time increases and print output speed decreases
Solution Approach 1:
The patent applies preliminary action by pre-processing the print job file before actual printing to extract and store metadata about page elements and their logical page associations. This metadata is generated in advance and stored for quick retrieval during printing, eliminating the need to re-traverse the entire print job file during the printing process. The pre-extraction of page element information resolves the contradiction by preparing the data structure beforehand, enabling both accurate identification and fast processing.
Solution Approach 2:
The patent extracts essential metadata information (page element identifiers and logical page associations) from the complete print job file and stores it separately. This extraction principle allows the system to work with a condensed metadata representation rather than the full print job file during printing operations, significantly reducing processing time while maintaining accurate page element identification through the extracted metadata.
2Loss of information
If the print controller traverses the entire print job file during printing, then complete page element information is obtained, but print output speed cannot be maintained
Solution Approach 1:
The patent creates a metadata copy or representation of the print job file's essential structure and page element information. This metadata copy contains all necessary page element identifiers and logical page associations in a compact format that can be quickly processed. During printing, the controller uses this metadata copy instead of traversing the original large print job file, thereby maintaining complete page element information while significantly improving print output speed.
3Ease of operation
If complex or poorly structured print job files are processed in real-time, then printing can proceed without pre-processing, but the print controller cannot process the job fast enough
Solution Approach 1:
The patent applies preliminary action by implementing a pre-processing step that analyzes complex or poorly structured print job files before printing begins. During this pre-processing phase, the system extracts page element metadata and organizes it into an efficient data structure. This advance preparation resolves the contradiction by handling the complexity upfront, allowing the actual printing operation to proceed quickly using the pre-organized metadata without requiring real-time traversal of the complex file structure.
Data Source
AI summary
A system is disclosed. The system includes one or more processors to receive a print job file including page content data, traverse each of a plurality of subset ranges of the page content data to generate page element metadata based on the page content data, wherein the page element metadata comprises identified page elements and the logical pages that correspond to the identified page elements, aggregate the page element metadata to generate print job structure metadata and store the print job structure metadata, wherein the print job structure metadata is stored separately from the print job file.