Ink discharging apparatus, ink heating method, and water-based ink for recording

An ink discharging apparatus comprising:

• a conveyor configured to convey a recording medium in a conveying direction;
• a head configured to discharge the water-based ink for recording onto the recording medium conveyed by the conveyor;
• and
• a heater which is located at downstream in the conveying direction of the head, and which is configured to heat the recording medium or the water-based ink for recording adhered to the recording medium,
• wherein the water-based ink for recording includes:
• a resin-dispersed pigment,
• resin fine particles of which glass transition temperature is not less than 33° C.,
• water, and
• an organic solvent including a specific organic solvent of which saturation vapor pressure at 20° C. is not less than 0.03 hPa, and
• the ink discharging apparatus satisfies the following condition (I):
• 6
• ≤
• (
• β
• /
• α
• )
• ×
• 1000
• ≤
• 31
• ,
• Condition
• ⁢
• ⁢
• (
• I
• )
• in the condition (I),
• α(° C.) being the glass transition temperature of the resin fine particles, and
• β (J/cm2) being an irradiation energy, radiated from the heater, per unit area of the recording medium.