Recording device and washing mechanism

A recording device comprising:

• a transport belt configured to transport a medium;
• a recording section configured to record an image on a medium transported by the transport belt by ejecting pigment ink onto the medium;
• and
• a washing mechanism configured to wash the transport belt with washing liquid, wherein
• the pigment ink includes black ink and ink other than the black ink,
• the washing mechanism includes a storage section configured to store washing liquid, a first detection section configured to detect an ink concentration of the black ink contained in washing liquid stored in the storage section, the first detection section includes a first light emitting section configured to emit light and the first detection section detects the ink concentration of the black ink by receiving light transmitted through the washing liquid, the second detection section includes a second light emitting section configured to emit light and a second detection section configured to detect an ink concentration of the pigment ink contained in the washing liquid stored in the storage section, and a washing control section,
• the second detection section detects the ink concentration of the pigment ink by receiving light scattered in the washing liquid, and
• the washing control section determines a threshold based on the ink concentration of the black ink detected by the first detection section, and discharges washing liquid from the storage section when the ink concentration of the pigment ink detected by the second detection section is equal to or larger than the threshold.