Patent ID: 8100519
Filing Date: 2012-01-24
Classification: B41J

Abstract:
1. A liquid discharging head comprising: a head chip including a plurality of energy generating elements configured to discharge liquid, and liquid chambers provided around the corresponding energy generating elements; and a common passage member configured to define a common passage communicating with all the liquid chambers in the head chip, wherein, the liquid is discharged from the liquid chambers by driving the energy generating elements so as to apply a discharging force to the liquid in the liquid chambers, wherein the common passage member includes N-number of common passage members, the value N is more than or equal to two, and each of the common passage members includes an inlet through which the liquid is supplied to the common passage and an outlet through which the liquid is ejected from the common passage, the inlet of the first common passage member is connected to a liquid supply member, the inlet of the N-th common passage member is connected to the liquid supply member via an opening-closing valve and to the outlet of the (N−1)-th common passage member, and a pressure loss of the liquid supply member between the inlet of the first common passage member and the inlet of the N-th common passage member is less than the total pressure loss of the common passages between the inlet of the first common passage member and the inlet of the N-th common passage member.