| 摘要 |
PROBLEM TO BE SOLVED: To obtain an optimum image by regularly forming a mask pattern for generating discharge data of more number of times of discharging at the time of mixedly existing different numbers of times of discharging for number of times of discharging to the same position of a medium to be recorded. SOLUTION: A random pattern is used for a medium to be recorded of a plain sheet mode by haploid or more density. The pattern is set with a mask of the same size as that of a mask data size corresponding to one time scanning (S1), its interior is fully filled with four parameters, a pair of parameters are selected from the parameters in a random numerical manner, substituted plural times to generate mask data disposed at random with the parameters (S2), and previously stored in a ROM. Further, the parameter is, for example, formed with thinned mask corresponding to mask data A to D (S3). The random pattern is not used in density exceeding haploid, but thinned pattern for regularly interpolating with each other is used to record. |
