discharge orifice 182 in order to install the pressurized canister 191 into the handle 104 the canister body is inserted into the handle collar 134 of the second syringe handle 130 and maneuvered into the retention cage 144 until the can detent 148 makes contact with the bottom surface 193 of the canister 191 thereby securely capturing the pressurized canister 191 within the retention cage 144 after secure capture of the pressurized canister 191 within the retention cage 144 the ink discharge orifice 182 extends through the tip opening 147 and the valve trigger is positioned in contact with or adjacent to the valve actuator 146 when fully inserted the retention cage 144 assures that the bottom of the pressurized canister 191 is aligned with the radial path of rotation of the ink dispenser contact point 118 on the second syringe handle 130 as defined by rotation of the second handle 130 about the pin 120 central to the preferred functionality of the transmitting syringe 50 is the transmitter circuitry integral to the transmitting syringe 50 in an exemplary embodiment the transmitter circuitry comprises a transmit trigger 184 a transmitter 186 and a power source 188 as depicted in fig2 the transmit trigger 184 may be positioned within the handle 110 proximal to the ink dispenser contact point 117 the.