Selective Reprint Repair for Printed Image Defects
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Solution Overview
Problem
Mechanical imprecision in printers often results in image defects during printing, leading to damaged areas that require reprinting the entire image, increasing time and cost due to extra printing fluid and substrate usage.
Innovation Solution
A method for repairing printed images by identifying damaged areas, determining a reprinting segment, printing a layer of fluid over the damaged area, and applying a correction printing template, which allows for selective reprinting of only the damaged sections, thereby saving time and ink, and potentially reusing costly rigid substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire image is reprinted to fix damaged areas, then image quality is ensured, but time and printing fluid consumption increase
Solution Approach 1:
The printing process is segmented into identification of damaged areas and selective reprinting of only those specific segments. The system divides the image into printable segments and identifies which segments contain damage, then reprints only those segments rather than the entire image, thereby reducing reprinting time while maintaining image quality.
Solution Approach 2:
The system applies local quality by treating different areas of the image differently - damaged areas receive reprinting treatment while undamaged areas are left unchanged. This localized approach ensures image quality is maintained only where necessary, avoiding unnecessary reprinting of intact portions and reducing overall reprinting time.
2Reliability
If the entire image is reprinted to fix damaged areas, then image quality is ensured, but printing fluid consumption increases
Solution Approach 1:
The system segments the printing process to identify and reprint only damaged segments rather than the entire image. By dividing the image into segments and selectively reprinting only those with damage, the system maintains image quality while significantly reducing printing fluid consumption compared to full image reprinting.
Solution Approach 2:
The system applies partial action by reprinting only the necessary portions (damaged segments) rather than the entire image. This partial reprinting approach is sufficient to maintain image quality while avoiding the excessive consumption of printing fluid that would result from reprinting the complete image.
3Reliability
If the entire image is reprinted to fix damaged areas, then image quality is ensured, but substrate usage increases
Solution Approach 1:
The system segments the image into printable segments and identifies which segments contain damage. By reprinting only the damaged segments on the same substrate rather than using a new substrate for the entire image, the system maintains image quality while reducing substrate consumption.
Solution Approach 2:
The system applies local quality by repairing only the damaged areas on the existing substrate rather than replacing the entire substrate. This localized repair approach ensures image quality is maintained in damaged regions while conserving substrate resources by reusing the original substrate.
Data Source
AI summary
A method is described in which a printed image which has been printed by a printer based on a printing template is repaired. A damaged area of the printed image is identified and a reprinting segment on the printed image is determined such as to overlap the identified damaged area. With the printer a layer of printing fluid is printed over the damaged image and a correction printing template is printed. The correction printing template includes a segment of the printing template that corresponds to the reprinting segment of the printed image.