| 摘要 |
PROBLEM TO BE SOLVED: To allow an ejection speed or a droplet amount to be constant by absorbing a voltage sensitivity difference for each print head in a printing apparatus.SOLUTION: Voltage sensitivity intrinsic to any print head is inferred by using a plurality of rank voltages. Accordingly, a driving voltage value in any temperature can be more precisely determined as compared with a method of inferring an intrinsic temperature function of the print head by using a conventional rank voltage and a reference temperature function. Deterioration of printing quality such as hue shift when the droplet amount is not constant or deterioration of granularity due to droplet arrival shift when the ejection speed is not constant is thereby prevented. |
