Patent ID: 8794728
Filing Date: 2014-08-05
Classification: B41J

Abstract:
1. An inkjet recording apparatus comprising: a recording head including a discharge port face provided with a first discharge port configured to discharge a first ink and a second discharge port configured to discharge a second ink of which a mole fraction of water is higher than the first ink; a cap configured to cap the discharge port face; a measurement unit configured to measure a capping time in which the discharge port face is capped by the cap; and a preliminary discharge unit configured to cause the recording head to execute a preliminary discharge, wherein the preliminary discharge unit causes the recording head to execute the preliminary discharge in a manner such that a same amount of ink is discharged from the first discharge port and the second discharge port in a case where the capping time measured by the measurement unit is shorter than a predetermined time, and causes the recording head to execute the preliminary discharge in a manner such that a larger amount of ink is discharged from the second discharge port than from the first discharge port in a case where the capping time is equal to or longer than the predetermined time.