Ink set and inkjet recording apparatus

An inkjet recording apparatus comprising:

• an inkjet ink;
• a cleaning liquid;
• and
• a recording head, wherein
• the recording head includes:
• a recording section that has an ink ejection surface and that ejects the inkjet ink onto an image formation area of a recording medium;
• and
• a cleaning section that cleans the ink ejection surface of the recording section with the cleaning liquid,
• the inkjet ink contains a pigment and a first aqueous medium,
• the first aqueous medium contains a hydrophobic solvent and water,
• the inkjet ink has a viscosity at 25° C. of at least 120 mPa·S and no greater than 3800 mPa·S after a drying treatment,
• the drying treatment is a treatment to heat the inkjet ink at 40° C. until a mass of the inkjet ink is reduced by 30.00% by mass,
• the cleaning liquid contains poly(meth)acrylic acid, a surfactant, and a second aqueous medium, and
• the poly(meth)acrylic acid has a percentage content of at least 0.15% by mass and no greater than 10.50% by mass in the cleaning liquid.