Patent ID: 8459764
Filing Date: 2013-06-11
Classification: B41J

Abstract:
1. A circuit outputting a drive signal to make an element perform operation for ejecting ink, an amount of the ink ejected by the element varying depending on a designated tone value, the drive signal having a waveform section for operating the element, the circuit comprising: an original drive signal generating section that generates an original drive signal having a plurality of the waveform sections; a switch that is arranged between the original drive signal generating section and the element, and that is for generating from the original drive signal the drive signal to be applied to the element; a switch-operation information storing section storing a plurality of pieces of switch-operation information for determining an operation of the switch; and a switch controller that controls the operation of the switch based on a piece of switch-operation information selected from the plurality of pieces of switch-operation information, wherein the pieces of switch-operation information are different depending on a plurality of types of the ink and a plurality of the tone values, and wherein the switch controller selects the piece of switch-operation information based on the designated tone value and the type of the ink.