Dynamic Print Region Analysis for High-Speed Production Quality Control
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Solution Overview
Problem
In high-speed production printing, manually reviewing thousands of pages for print quality issues is inefficient and impractical, and existing systems require significant maintenance for error detection in print jobs.
Innovation Solution
A print review system that dynamically flags and bypasses analysis of specific regions on print media, allowing operators to continue printing by selectively ignoring minor errors, reducing processing load and enabling real-time detection and reporting of printhead conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual review of print job output is performed, then print quality can be ensured, but it is not feasible for print jobs comprising thousands of pages
Solution Approach 1:
The patent divides the print media width into multiple regions and selectively applies quality control to specific regions rather than reviewing the entire output. This segmentation allows automated region-based analysis that can handle large print jobs efficiently while maintaining quality assurance for critical areas.
Solution Approach 2:
The patent replaces manual mechanical review with automated optical scanning and image processing systems. The scanner captures images of printed media, and software algorithms automatically analyze printhead conditions and detect defects, eliminating the need for manual inspection of thousands of pages.
2Reliability
If scanner is used for quality control, then print quality can be detected, but scanner requires its own maintenance and upkeep
Solution Approach 1:
The patent integrates the scanning and quality control functions into the existing production printer system. The printer's control system performs multiple functions including printing, scanning via integrated sensors, image processing, and quality control analysis, reducing the need for separate dedicated scanner maintenance.
Solution Approach 2:
The system performs self-diagnosis and quality control using integrated sensors and processing capabilities within the printer itself. The control system automatically analyzes printed output and detects printhead conditions without requiring external scanner maintenance, making the system self-sufficient for quality control.
3Reliability
If full print job review is performed, then all errors can be detected, but processing time and resources increase significantly
Solution Approach 1:
The patent applies different quality control strategies to different regions of the print media. Critical regions receive thorough automated analysis while non-critical regions use simplified detection or are excluded from review. This local differentiation reduces processing time while maintaining detection of significant errors in important areas.
Solution Approach 2:
The patent performs partial quality control by selectively analyzing only certain regions of the print media rather than reviewing the entire output. This partial action approach detects the most significant errors (such as printhead jetout conditions in active print regions) while skipping analysis of non-critical areas, reducing processing time and resource consumption.
Data Source
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AI summary
Systems and methods are provided for reviewing printed jobs. One embodiment is a system that includes a print review device. The print review device includes a memory that stores data which indicates whether regions along a width of print media marked by a printer are flagged as bypassable, and a controller configured to determine printhead conditions within regions that have not been flagged, associate each printhead condition with a corresponding region, and to generate a report with notifications of printhead conditions within each region that has not been flagged, while foregoing determination of printhead conditions in regions that have been flagged.