Multi-chromatic indicia redundancy for lottery ticket misprints
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Solution Overview
Problem
Existing lottery scratch-off tickets often suffer from misprints due to clogged inkjet heads, leading to incorrect information being printed, which can result in disappointed winners and legal issues, as the current solutions like legal disclaimers and automated monitoring systems are either ineffective or costly.
Innovation Solution
The implementation of redundantly printed security-enhanced documents using multiple ink applications in different colors, ensuring that even if one color fails to print, the information remains legible and secure, with features like CMYK process colors, secondary background colors, and inverted foreground and background colors to enhance readability and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If single spot color indicia imaging is used, then printing cost and device complexity are reduced, but printing reliability deteriorates due to inkjet head clogging
Solution Approach 1:
The patent divides the single-color printing task into multiple color channels (CMYK process colors or multiple spot colors). Each color is printed separately using dedicated inkjet heads, so that if one head clogs, other colors can still be printed to provide redundant information. This segmentation of the printing function across multiple color systems resolves the reliability issue while maintaining manageable device complexity through standardized multi-color printing architecture.
Solution Approach 2:
The patent applies different colors to different portions of the same indicium (e.g., different digits of a key number in different colors). This local differentiation allows the system to tolerate partial failures - if one color fails to print, the remaining colors still convey meaningful information that can be cross-referenced with the game rules to determine winnings, thereby improving printing reliability without requiring perfect printing of all colors.
2Loss of information
If monochromatic indicia are used, then printing simplicity is maintained, but information redundancy is insufficient leading to misprint disputes
Solution Approach 1:
The patent segments the information encoding across multiple color channels. Each color prints a portion of the indicium (e.g., different digits or portions of key numbers), creating inherent redundancy. This allows the system to recover complete information even when one color channel fails, directly addressing the information redundancy problem while using standard multi-color printing processes to limit device complexity increases.
Solution Approach 2:
The patent uses composite color information (combining multiple spot colors or CMYK process colors) to encode the indicium. This composite approach creates information redundancy because the same data is represented across multiple color layers. The composite nature of the printing process adds minimal complexity since it leverages existing multi-color printing infrastructure while significantly improving information resilience against misprints.
3Manufacturing precision
If traditional inkjet printing is used, then printing speed and productivity are high, but printing precision deteriorates due to clogged heads causing misprints
Solution Approach 1:
The patent implements beforehand cushioning by printing multiple color layers that serve as redundant information backups. Before any misprint can occur and cause a dispute, the redundant color information is already in place to compensate for potential failures. This proactive approach maintains high printing speed using fast inkjet processes while ensuring precision through pre-built redundancy that prevents misprint disputes, rather than requiring slower verification steps after printing.
Data Source
AI summary
A redundantly printed security-enhanced document, printing method and system are provided for ensuring the meaning of the information imparted by variable indicia printed on documents with removable scratch-off coatings by the redundant printing. By printing the variable indicia with multiple colors, redundancy and integrity of the intended indicia is achieved. Additionally, inverted color indicia countermeasures to pinprick attacks are also disclosed. The redundantly printed document, methods and systems enhance the overall appearance of the redundantly printed document, and reduce the consequences possibly resulting from misprinted variable indicia.