| 摘要 |
An image formation device includes an inkjet head that ejects ink onto a sheet, IR heaters that dry the ink ejected on the sheet, and warm air heaters between the IR heaters. At the IR heaters, a peak wavelength of infrared rays is set to be less than or equal to 1.2 μm. By adjusting temperature of the IR heaters and temperature and wind speed of the warm air heaters, during an initial stage of drying in which a moisture content derived from ink at the sheet is greater than or equal to 4.0 g/m2, heating is carried out under a condition that a paper surface temperature of the sheet becomes less than or equal to 100° C., and, after the moisture content derived from ink at the sheet becomes lower than 4.0 g/m2, heating is carried out such that the paper surface temperature of the sheet exceeds 100° C. |
| 主权项 |
1. An image formation device comprising:
a droplet ejecting device that ejects droplets onto a recording medium; and a drying device that dries the droplets ejected onto the recording medium, the drying device comprising an infrared heater at which a peak wavelength of infrared rays is set to be less than or equal to 1.2 μm; wherein: A) during a first stage of drying, using the drying device, in which a moisture content, derived from the droplets, at the recording medium is greater than or equal to 4.0 g/m2, heating is carried out under a condition that a paper surface temperature of the recording medium becomes less than or equal to 100° C., at which the moisture content that has penetrated into the recording medium evaporates; and B) during a second stage of drying, using the drying device, after the moisture content, derived from the droplets, at the recording medium becomes lower than 4.0 g/m2, heating is carried out such that the paper surface temperature of the recording medium exceeds 100° C.
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