RECORDING HEAD AND RECORDER COMPRISING SUCH RECORDING HEAD

摘要

A recording head having a plurality of recording devices comprises a plurality of switching devices provided corresponding to the respective recording devices, constant current sources which are provided corresponding to respective groups among which the recording devices are apportioned and applies a constant current to all the recording devices in the respective groups, and a current control circuit for controlling constant currents supplied from the constant current sources. The recording devices are driven by the constant currents.