LIQUID DELIVERY HEAD, LIQUID DELIVERY DEVICE, AND LIQUID DELIVERY HEAD DRIVING METHOD

摘要

The invention is applicable to a printer adapted to jet ink drops as by the driving of a heating element, whereby when it is desired to control the direction of jetting of liquid drops by the driving of a plurality of pressure variable elements, driving circuits or the like can be efficiently laid out to dispose nozzles at high density. When it is desired to control the direction of jetting of liquid drops by controlling the driving of a plurality of pressure variable elements (15A, 15B) installed in a liquid chamber, the balance of driving of the pressure variable elements (15A, 15B) by a main control circuit (27) is made variable with respect to an auxiliary control circuit (31) to reduce the current due to the auxiliary control circuit (31), thereby correspondingly narrowing a wiring pattern (22C) related to the auxiliary control circuit (31).