INK SUPPLYING DEVICE, RECORDING DEVICE, INK SUPPLYING METHOD AND RECORDING METHOD

摘要

Fluctuation of negative pressure in a recording head is suppressed to be small by positively controlling ink supplying pressure. A pump (36) and a valve (35) are provided in an ink communicating path between an ink tank (40) and a recording head (811). The negative pressure applied on the recording head (811) is adjusted by controlling the pump (36) and the valve (35).