Problem to be solved: to provide a method of analyzing print quality to better identify and correct print defects in an ink jet printing nozzle due to phase defects in the printing direction.By means of a calculatorThe state of the printing nozzle in the print head of the ink-jet printer is evaluated.Is a method of improving printing quality of a printing nozzle;A regular vertical line printed verticallyAt least one nozzle test pattern consisting of a specified number of horizontal columns is printed.These lines are placed vertically.In each column of the nozzle test pattern, only the nth printing nozzle is involved in the nozzle test pattern.N in each columnA different number between 1 and a specific number of horizontal columnsThe printed nozzle test pattern is detected andAbout the state of the printing nozzleIt is evaluated by the computer.ThenRelating to the state of the printing nozzle involvedMeasures to improve printing quality of printing nozzles are taken.Diagram
展开▼
