Printing Device Correction Process Selection
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Solution Overview
Problem
Printing devices face errors such as medium advance errors and faulty nozzles, which result in artifacts in printed images due to incorrect positioning and clogging, and existing correction processes do not effectively interact to address these issues simultaneously.
Innovation Solution
A printing device employs a combination of medium advance error correction and faulty nozzle correction processes, selecting from various combinations based on interaction criteria to optimize image formation by shifting image data and replacing faulty nozzles with operational ones, thereby adjusting nozzle subsets to compensate for errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If medium advance error correction process is applied to address medium advance errors, then positioning accuracy is improved, but it may decrease the effectiveness of faulty nozzle correction process
Solution Approach 1:
The system dynamically adjusts parameters of both correction processes based on detected error conditions. When medium advance errors are detected, the medium advance error correction process modifies positioning parameters, and when faulty nozzles are detected, the faulty nozzle correction process adjusts nozzle operation parameters. This parameter adaptation allows both processes to coexist effectively by optimizing their performance based on actual error conditions.
2Reliability
If faulty nozzle correction process is applied to address faulty nozzles, then nozzle reliability is improved, but it may not effectively address medium advance errors
Solution Approach 1:
The system implements dynamic selection between different correction process combinations based on real-time error detection. The controller determines which correction process to apply by dynamically assessing the current error conditions (medium advance errors, faulty nozzles, or both). This dynamic approach ensures that the appropriate correction process is activated for each specific error scenario, maintaining both nozzle reliability and positioning accuracy.
3Reliability
If multiple correction processes are applied simultaneously, then comprehensive error correction is achieved, but system complexity increases
Solution Approach 1:
The correction system is segmented into distinct, independent correction processes: medium advance error correction process and faulty nozzle correction process. Each process handles a specific type of error independently. The controller segments the correction task by detecting error types and activating only the necessary correction process or combination thereof. This segmentation reduces overall system complexity by avoiding the need for a single complex correction mechanism that would need to handle all error types simultaneously.
Data Source
AI summary
In some examples, a system detects an error in an printing device, and selects a combination of a medium advance error correction process to address a medium advance error and a faulty nozzle correction process to address a faulty nozzle, where the selecting of the combination is from a plurality of different combinations of the medium advance error correction process and the faulty nozzle correction process, and the selecting is based on a criterion relating to an interaction between the medium advance error and faulty nozzle correction processes.