US 11,752,762 B2
Liquid discharge method, non-transitory computer-readable storage medium storing drive pulse determination program, and liquid discharge apparatus
Toshiro Murayama, Fujimi-machi (JP); Takahiro Katakura, Okaya (JP); and Nobuaki Ito, Shiojiri (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jan. 21, 2021, as Appl. No. 17/154,735.
Claims priority of application No. 2020-009212 (JP), filed on Jan. 23, 2020.
Prior Publication US 2021/0229422 A1, Jul. 29, 2021
Int. Cl. B41J 2/045 (2006.01)
CPC B41J 2/0457 (2013.01) [B41J 2/04561 (2013.01); B41J 2/04581 (2013.01); B41J 2/04588 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A liquid discharge method of using a liquid discharge head including a drive element and a nozzle to discharge a liquid from the nozzle by applying a drive pulse to the drive element, the method comprising:
an acquisition step of acquiring a recording condition; and
a driving step of applying the drive pulse to the drive element, wherein
the drive pulse includes a first potential, a second potential different from the first potential, and a third potential different from the first potential and the second potential, the second potential being applied after the first potential, and the third potential being applied after the second potential, and
in the driving step, the drive pulse in which a time of the third potential varies depending on the recording condition acquired in the acquisition step is applied to the drive element, and
in the driving step, one drive pulse determined among a plurality of the drive pulses is applied to the drive element, the drive pulses including at least a first drive pulse and a second drive pulse in which the time of the third potential is longer than the time in the first drive pulse, and
in the acquisition step, an angle of a discharge direction of the liquid discharged from the nozzle with respect to a reference direction is acquired as the recording condition, and
in the driving step,
the first drive pulse is applied to the drive element when the angle acquired in the acquisition step is a first angle, and
the second drive pulse is applied to the drive element when the angle acquired in the acquisition step is a second angle larger than the first angle.