| 摘要 |
The energy amount supplied to each dot forming a pixel is determined to 8 levels. In a dot pattern of the gradation level 1, the energy amount level 1 is provided to a dot 35 of the pixel 31. In the gradation level 2, the energy level 1 is provided to the dots 35 and 36. In the gradation level 3, the energy level 1 is provided to the dots 35 to 37. Similarly, the energy levels 1 to 8 are provided successively to the dots 35 to 38 to form dot patterns of the gradation levels 3 to 31. In the gradation level 32, the energy level 8 is provided to the dots 35 to 38.
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