| 摘要 |
An ink jet printing apparatus and an ink jet printing method according to the present invention suppress a variation in the density of ink in a supply channel and a print head without the needs for useless recovery operations, thus always providing very reliable high-grade images. The ink jet printing apparatus carries out printing using a print head for ejecting ink. The apparatus includes scanning means for causing the print head to scan a printing medium, measuring means for measuring time from an end of a preceding printing operation till a start of a current printing operation, and determining means for determining whether or not a result of measurement executed by the measuring means exceeds a predetermined value. The scanning means causes the print head to carry out idle scan before the start of a printing operation depending on a result of determination made by the determining means.
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