US 12,070,943 B2
Drive waveform determination method, storage medium, liquid discharge apparatus, and drive waveform determination system
Atsushi Toyofuku, Shiojiri (JP); and Toshiro Murayama, Fujimi-Machi (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Nov. 10, 2021, as Appl. No. 17/454,402.
Claims priority of application No. 2020-189263 (JP), filed on Nov. 13, 2020.
Prior Publication US 2022/0153022 A1, May 19, 2022
Int. Cl. B41J 29/38 (2006.01); B41J 2/045 (2006.01)
CPC B41J 2/04588 (2013.01) [B41J 2/04581 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A drive waveform determination method for determining, using a first discharge characteristic and a second discharge characteristic different from the first discharge characteristic, a waveform of a drive pulse to be applied to a drive element provided in a liquid discharge head that discharges a liquid, the drive waveform determination method comprising:
a first step of setting a condition of the first discharge characteristic;
a second step of acquiring the first discharge characteristic and the second discharge characteristic that are measured when a candidate waveform is used as the waveform of the drive pulse;
a third step of determining whether the first discharge characteristic meets the condition; and
a fourth step of, when it is determined in the third step that the condition is met, evaluating the candidate waveform by performing a superior comparison using the second discharge characteristic,
wherein the waveform of the drive pulse is determined by an optimization process in which at least the second step, the third step, and the fourth step are repeated.