| 主权项 |
1. A paper humidifying device comprising:
a pair of humidifying rollers that apply moisture to paper when the paper is sandwiched and conveyed; a water feed roller that supplies moisture to an outer peripheral surface of the pair of humidifying rollers; a dewatering unit that wipes off moisture on the outer peripheral surface of the pair of humidifying rollers; a first drive unit that causes the water feed roller to be separated from or abut on the pair of humidifying rollers; a second drive unit that causes the dewatering unit to be separated from or abut on the pair of humidifying rollers; and a control unit that controls the first drive unit and the second drive unit, wherein the control unit: controls, before a front end of the paper passes through a nip part of the pair of humidifying rollers, the first drive unit to cause the water feed roller to be separated from the pair of humidifying rollers, and controls the second drive unit to cause the dewatering unit to abut on the pair of humidifying rollers to wipe off moisture on the pair of humidifying rollers; controls, after the front end of the paper passes through the nip part, the first drive unit to cause the water feed roller to abut on the pair of humidifying rollers to apply moisture to the paper; and causes, during a period after the dewatering unit is caused to abut on the pair of humidifying rollers and before the water feed roller is caused to abut on the pair of humidifying rollers, the dewatering unit to be separated from the pair of humidifying rollers. |
