An apparatus comprising: a fluid supply station of a printer comprising: a connector configured to couple with a fluid source for supplying fluid to at least one printhead of the printer, the connector comprising: an interface having a body with an end surface that corresponds with a nozzle face of a nozzle of the fluid source; an inlet protruding from the end surface of the body of the interface and configured to enter an opening of the nozzle for receiving the fluid from the fluid source, characterized in that the apparatus further comprises: a communication circuitry disposed on the end surface of the body of the interface and configured to establish a connection with a corresponding communication circuitry disposed on the nozzle face of the nozzle of the fluid source when the inlet enters the opening of a spout of the nozzle and the end surface of the body of the interface and the nozzle face of the nozzle face align, wherein the communication circuitry disposed on the end surface of the body of the interface and the corresponding communication circuitry disposed on the nozzle face of the nozzle establish the connection inside a seal that is formed at the outer portions of the end surface of the body of the interface and the nozzle face of the nozzle, respectively, when the fluid source couples with the connector; and the seal prevents air from entering the flow of fluid from the fluid source to the connector. an interface having a body with an end surface that corresponds with a nozzle face of a nozzle of the fluid source; an inlet protruding from the end surface of the body of the interface and configured to enter an opening of the nozzle for receiving the fluid from the fluid source, characterized in that the apparatus further comprises: a communication circuitry disposed on the end surface of the body of the interface and configured to establish a connection with a corresponding communication circuitry disposed on the nozzle face of the nozzle of the fluid source when the inlet enters the opening of a spout of the nozzle and the end surface of the body of the interface and the nozzle face of the nozzle face align, wherein the communication circuitry disposed on the end surface of the body of the interface and the corresponding communication circuitry disposed on the nozzle face of the nozzle establish the connection inside a seal that is formed at the outer portions of the end surface of the body of the interface and the nozzle face of the nozzle, respectively, when the fluid source couples with the connector; and the seal prevents air from entering the flow of fluid from the fluid source to the connector. a communication circuitry disposed on the end surface of the body of the interface and configured to establish a connection with a corresponding communication circuitry disposed on the nozzle face of the nozzle of the fluid source when the inlet enters the opening of a spout of the nozzle and the end surface of the body of the interface and the nozzle face of the nozzle face align, wherein the communication circuitry disposed on the end surface of the body of the interface and the corresponding communication circuitry disposed on the nozzle face of the nozzle establish the connection inside a seal that is formed at the outer portions of the end surface of the body of the interface and the nozzle face of the nozzle, respectively, when the fluid source couples with the connector; and the seal prevents air from entering the flow of fluid from the fluid source to the connector.