Patent ID: 8353585

Claim:
A waste liquid collector which is detachably mounted on a device including a discharge unit discharging a waste liquid and which stores the waste liquid discharged from the discharge unit when the waste liquid collector is mounted on the device, the waste liquid collector comprising: an opening through which the discharge unit is inserted at the time of mounting the waste liquid collector on the device and through which the discharge unit is extracted at the time of detaching the waste liquid collector from the device; a collector-side connection terminal which comes in contact with a device-side connection terminal included in the device when the discharge unit of the device is inserted into the opening and which exchanges information of the waste liquid with the device; and a positioning unit which regulates a rotation of the waste liquid collector and which positions the collector-side connection terminal to come in contact with the device-side connection terminal after regulating the movement from a center of the opening in the radial direction of the waste liquid collector by first the discharge unit being inserted into the opening when the waste liquid collector is mounted on the device.