A printer is provided which has two pagewidth printheads arranged to eject ink from ink ejection nozzles disposed along the respective pagewidth onto opposite surfaces of print media being transported therepast, and a cappingpurging mechanism. The biasing multilayer element includes soft ferromagnetic and anti-ferromagnetic layers such that the biasing strength applied to the active region of the magnetic sensor is tuneable by adjusting the length of the soft ferromagnetic layer or layers as well as the insertion of spacer layers between the soft ferromagnetic materials and the anti-ferromagnetic layers. The received information is derived from data acquired by a sensor coupled to the person and sent by a requestor electronic device.