Dispensing Process Mapping for Printer Nozzle Failures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Printers face challenges in efficiently dispensing printing material to produce desired content characteristics, such as color and resolution, especially when dealing with nozzle failures or varying printing content types, which can result in suboptimal printing quality and unwanted artifacts.
Innovation Solution
The printer employs a mapping process that selects between different dispensing processes based on the printer's condition and the type of content to be printed, using a data structure like the Neugebauer Primary Area Coverage (NPac) vector and look-up tables (LUTs) to determine the appropriate dispensing pattern for each nozzle, ensuring consistent output even in abnormal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed dispensing process is used, then the device complexity is reduced, but the printing quality deteriorates when nozzle failures occur or content types vary
Solution Approach 1:
The patent implements dynamic selection of dispensing processes based on real-time printer conditions and content characteristics. The system transitions from a fixed dispensing process to a dynamic one that adapts to nozzle failures and varying content types, thereby maintaining printing quality without requiring complex hardware changes
Solution Approach 2:
The system changes operational parameters by selecting different dispensing processes from a plurality of available processes. Each process has specific parameters optimized for particular conditions (e.g., which nozzles to use, dispensing patterns), allowing the system to adapt to failures and content variations by modifying these parameters rather than the overall device structure
2Manufacturing precision
If adaptive dispensing processes are implemented, then printing quality is maintained under varying conditions, but the device complexity increases
Solution Approach 1:
The system performs preliminary classification of content characteristics and pre-selects appropriate dispensing processes before actual printing. By categorizing content types and printer conditions in advance and having pre-defined dispensing processes ready, the system reduces the complexity of real-time decision-making while maintaining quality consistency
Solution Approach 2:
The patent introduces an intermediary mapping process that bridges the gap between content characteristics and dispensing process selection. This intermediary layer translates content requirements into appropriate dispensing parameters, simplifying the overall system architecture by decoupling the complexity of content analysis from the complexity of dispensing execution
3Ease of operation
If a single dispensing process is used for all content types, then the ease of operation is improved, but the adaptability to different content characteristics deteriorates
Solution Approach 1:
The system implements a universal dispensing framework where a single operational interface handles multiple content types by automatically selecting from a plurality of specialized dispensing processes. Each process is optimized for specific content characteristics, but the unified selection mechanism maintains ease of operation, allowing the system to be both simple to operate and highly adaptable
Data Source
AI summary
A method is described in which printing instructions representing printing content to be printed by a printing system are received, the printing system comprising a dispenser to dispense printing material. Whether to perform a first mapping process or a second mapping process is then selected. The first mapping process comprises mapping an indicator to a first dispensing process to dispense printing material from the dispenser to produce content according to a content characteristic of the printing content at a given location, and the second mapping process comprises mapping the indicator to a second dispensing process to dispense printing material to produce content according to the content characteristic at the given location. The first dispensing process is different than the second dispensing process. The indicator represents the content characteristic. The method also comprises performing the selected mapping process.