| 摘要 |
According to an aspect of the present invention, the function expressing the relationship between the temporary recording element number and the line positions for each line block is obtained, and adequacy of the temporary recording element number is determined based on consistency between the line blocks having the characteristics expressed by the functions. For the line blocks that have different characteristics from the rest of the line blocks, it is determined that the temporary recording element numbers of such line blocks have errors, and these temporary recording element numbers are corrected. Thus, the correspondence relation between each recording element number and each line position can be defined so that the characteristics of the line blocks become consistent with one another.
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