A recording apparatus, comprising: a transport device that is configured to transport a medium to be printed using an endless transport belt placed around a plurality of rollers (103, 104, 105); a recording device that is configured to record a recording object on the medium to be printed on the transport belt; and a cleaning unit that is configured to clean the transport belt, the cleaning unit comprising a cleaner, a cleaning liquid tank, and a moving mechanism that supports the cleaner and the cleaning liquid tank, the cleaning liquid tank being configured to contain a cleaning liquid and accommodating at least part of the cleaner, the cleaner being configured to make contact with the transport belt in a width direction of the transport belt to clean the transport belt with the cleaning liquid, the moving mechanism being configured to move the cleaning unit in a horizontal direction to and from a contact position at which the cleaner is in contact with the transport belt and a non-contact position at which the cleaner is out of contact with the transport belt the recording apparatus further comprises a controller configured to control driving of the moving mechanism; characterized in that: the recording apparatus further comprises a first sensor configured to detect whether the liquid level of the cleaning liquid has reached a predetermined lower level in the cleaning liquid tank, and a second sensor configured to detect whether the liquid level of the cleaning liquid has reached a predetermined upper level in the cleaning liquid tank; and the controller is configured to drive the moving mechanism to move the cleaning unit to the contact position when the cleaning liquid W is detected by the first sensor but is not detected by the second sensor 63. a transport device that is configured to transport a medium to be printed using an endless transport belt placed around a plurality of rollers (103, 104, 105); a recording device that is configured to record a recording object on the medium to be printed on the transport belt; and a cleaning unit that is configured to clean the transport belt, the cleaning unit comprising a cleaner, a cleaning liquid tank, and a moving mechanism that supports the cleaner and the cleaning liquid tank, the cleaning liquid tank being configured to contain a cleaning liquid and accommodating at least part of the cleaner, the cleaner being configured to make contact with the transport belt in a width direction of the transport belt to clean the transport belt with the cleaning liquid, the moving mechanism being configured to move the cleaning unit in a horizontal direction to and from a contact position at which the cleaner is in contact with the transport belt and a non-contact position at which the cleaner is out of contact with the transport belt the recording apparatus further comprises a controller configured to control driving of the moving mechanism; characterized in that: the recording apparatus further comprises a first sensor configured to detect whether the liquid level of the cleaning liquid has reached a predetermined lower level in the cleaning liquid tank, and a second sensor configured to detect whether the liquid level of the cleaning liquid has reached a predetermined upper level in the cleaning liquid tank; and the controller is configured to drive the moving mechanism to move the cleaning unit to the contact position when the cleaning liquid W is detected by the first sensor but is not detected by the second sensor 63. the recording apparatus further comprises a first sensor configured to detect whether the liquid level of the cleaning liquid has reached a predetermined lower level in the cleaning liquid tank, and a second sensor configured to detect whether the liquid level of the cleaning liquid has reached a predetermined upper level in the cleaning liquid tank; and the controller is configured to drive the moving mechanism to move the cleaning unit to the contact position when the cleaning liquid W is detected by the first sensor but is not detected by the second sensor 63.