| 摘要 |
In recording on a back side of a sheet in duplex recording, an overlapping pixel where both a pixel in back-side image data and a pixel opposed thereto in front-side image data has a gray level value larger than zero is retrieved from the front-side and back-side image data. A block area containing at least a predetermined number of overlapping pixels is extracted as an overlap area from block areas arranged in a matrix in the back-side image data. The area drying time in a block area other than the overlap area is determined from the volume of droplets to be ejected to the back side. The area drying time in the overlap area is determined from the total volume of droplets to be ejected to the front and back sides. The maximum area drying time is determined to be the drying time for the back side. |
