Ink jet recording apparatus and ink jet recording method

An ink jet recording method in which an image is recorded by ejecting a pigment ink from an ink jet head on a recording surface of a recording medium, the method comprising:

• preparing an ink jet recording apparatus including a recording medium transporting unit which transports the recording medium to the ink jet head and a recording medium discharging unit which discharges the recording medium on which the image is recorded by the ink jet head, and
• preparing, in the recording medium discharging unit, a discharging roller installed on the opposite side to the recording surface of the recording medium and a cylinder-shaped driven roller installed on the recording surface side of the recording medium so as to face the discharging roller,
• wherein the driven roller has an electrical resistivity smaller than 108 Ωcm, and is grounded, and
• the pigment ink has an electrical conductivity of equal to or more than 0.5 mS/m.