Spray head voltage adjusting method and device based on camera automatic identification printing color blocks and storage medium
By automatically identifying printed color blocks with a camera, acquiring the chromaticity distribution data of the printhead, establishing benchmark characteristic parameters, calculating deviation values, constructing a printhead voltage-chromaticity response curve database, and dynamically updating the database, the problem of unstable print quality and low debugging efficiency caused by batch differences, aging issues, and subjective judgment in printhead voltage adjustment is solved, and precise printhead voltage adjustment is achieved.
CN121004847APending Publication Date: 2025-11-25GUANGZHOU SENYANG ELECTRONIC TECH CO LTD
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Patent Information
- Application Number
- CN202511211050.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2025-11-25
AI Technical Summary
Technical Problem
Existing printhead voltage adjustment methods suffer from inconsistent print quality and low debugging efficiency due to batch differences, aging issues, and subjective judgment.
Method used
The system automatically identifies printed color blocks using a camera, acquires chromaticity distribution data from the printhead, establishes baseline characteristic parameters, calculates deviation values, constructs a printhead voltage-chromaticity response curve database, and dynamically updates the database to achieve precise voltage adjustment.
Benefits of technology
It improves the stability and consistency of print quality, reduces reliance on the experience of technicians, and increases debugging efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a nozzle voltage adjustment method and device based on camera automatic identification printing color blocks and a storage medium, and relates to the technical field of printing device calibration, and the method comprises the steps: controlling a printing device to output a pattern containing each nozzle independent test area and color blocks; acquiring chromaticity distribution data through an image acquisition device, and extracting characteristic parameters such as brightness and saturation; determining a reference characteristic parameter based on a reference selection rule, and calculating a deviation value between each test area and the reference; an adjustment instruction is generated according to the mapping relation between the deviation value and the voltage adjustment amount, verification printing and iterative optimization are carried out after implementation until the precision is met, and through dynamic selection of a reference color block, LAB color space chromatic aberration calculation, voltage sensitivity coefficient matrix mapping and aging compensation, the adjustment precision and efficiency are improved, the dependence on artificial experience is reduced, and the adjustment precision and efficiency are improved. The method is suitable for nozzle calibration of high-precision printing equipment.
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