| 摘要 |
PROBLEM TO BE SOLVED: To form a good image by correcting the positional shift of a correction table without again performing head shading even when registration adjustment is applied to a printing head. SOLUTION: It is checked whether a pixel impossible to correct is generated with respect to an RAM 410 in which a correction table of LED heads 410 of respective colors is stored after registration adjustment. When an absent pixel is detected, the data of a vicinal pixel is copied. Alternatively, correction is performed by using a means for setting the central value or the like of the correction table. |
