| 摘要 |
<p>A printing device (10) configured to operate selectively in one of a single-sided printing mode and a double-sided printing mode comprises a printing unit (39) configured to eject ink, and a controller (88). When the printing device operates in the double-sided printing mode, the controller is configured to calculate a drying time for a front-side image printed by the printing unit on a front side of a sheet, and to determine whether the calculated drying time exceeds a predetermined threshold value. When the controller determines that the drying time dose not exceed the predetermined threshold value, the controller is configured to control the printing unit to print a back-side image on a back side of the sheet. When the controller determines that the drying time exceeds the predetermined threshold value, the controller is configured to control the printing unit not to print the back-side image on the back side of the sheet, and to print the back-side image on a front side of a next sheet.
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