| 摘要 |
In monochrome printing mode, a first correction value is set for correcting printing positional deviation between ink droplets printed during forward and reverse main scanning passes. In color printing mode, a second correction value is set for correcting printing positional deviation between ink droplets printed during forward and reverse main scanning passes. An adjustment value is determined for reducing printing positional deviation during forward and reverse main scanning passes. For this, in monochrome printing mode the first correction value is used as an adjustment value, and in color printing mode at least a second correction value is used to determine an adjustment value. Following this, the adjustment value is used to adjust printing positions during forward and reverse main scanning passes.
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