Title:
INKJET HEAD
Document Type and Number:
Japanese Patent JP2023091465
Kind Code:
A
Abstract:
To suppress generation of small droplets.SOLUTION: A driving circuit for driving an actuator ejects ink droplets by driving the actuator using driving waveforms which include: an extended waveform for driving the actuator in a direction in which a volume of a pressure chamber extends, a contracted waveform for driving the actuator in a direction in which the volume of the pressure chamber contracts, a first weak contracted waveform between the extended waveform and the contracted waveform for driving the actuator in a direction in which the volume of the pressure chamber contracts more weakly than that by the contracted waveform; and a second weak contracted waveform for driving the actuator in a direction in which the volume of the pressure chamber contracts more weakly than that by the contracted waveform after the contracted waveform, where the number of ink droplets in minimum gradation is set to two or more in performing gradation expression using the number of ink droplets.SELECTED DRAWING: Figure 13
Inventors:
KIKUCHI NORIYUKI
IKEGAMI KOKI
OGURA SHIMPEI
IKEGAMI KOKI
OGURA SHIMPEI
Application Number:
JP2021206226A
Publication Date:
June 30, 2023
Filing Date:
December 20, 2021
Export Citation:
Assignee:
TOSHIBA TEC KK
International Classes:
B41J2/015; B41J2/01; B41J2/205
Attorney, Agent or Firm:
Patent Attorney Corporation Suzue Patent General Office
Masatoshi Kurata
Tadashi Inoue
Takashi Mine
Naoki Kawano
Sanae Kaneko
Masatoshi Kurata
Tadashi Inoue
Takashi Mine
Naoki Kawano
Sanae Kaneko