Abstract
Current ground-printing technology uses a printhead equipped with nozzles to deposit ink onto a surface. Several printhead parameters, such as pressure and firing frequency, can be configured, directly influencing the printing result and image quality. Printing line weight is one outcome of this configuration and is particularly relevant for ground-printing robots, whose primary purpose is the printing of construction layouts on the floor. However, line weight may vary depending on environmental conditions, printhead lifecycle and health, floor substrate characteristics, and other operational factors. These sources of variability can make it difficult to achieve a consistent printed output across different deployment scenarios. The present disclosure introduces an automatic procedure for calibrating line weight under the specific operating conditions of the user. By analyzing printed calibration patterns and extracting quantitative information from the deposited drops, the proposed approach establishes a relationship between printhead operating parameters and the resulting print characteristics. This enables a data-driven adjustment of the printing process, allowing the system to achieve a target line weight while compensating for variations introduced by the operating environment.
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Recommended Citation
INC, HP, "Robust nozzle calibration for homogeneous line printing", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/11827