US 11,701,882 B2
Liquid discharge apparatus
Atsushi Amano, Nagano (JP); and Toru Matsuyama, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Dec. 27, 2021, as Appl. No. 17/646,011.
Claims priority of application No. 2020-219836 (JP), filed on Dec. 29, 2020.
Prior Publication US 2022/0203681 A1, Jun. 30, 2022
Int. Cl. B41J 2/045 (2006.01); B41J 2/14 (2006.01)
CPC B41J 2/04581 (2013.01) [B41J 2/04555 (2013.01); B41J 2/14201 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A liquid discharge apparatus comprising:
a discharge section that discharges a liquid by supplying a driving signal;
an integrated circuit that outputs a modulated signal obtained by modulating a reference driving signal that is a reference of the driving signal;
an amplifier circuit that outputs an amplified modulated signal by driving a transistor driven by the modulated signal; and
a demodulation circuit that includes an inductance element and outputs the driving signal obtained by demodulating the amplified modulated signal, wherein
the inductance element includes
a housing having a first side portion, a second side portion positioned facing the first side portion, a third side portion intersecting with the first side portion and the second side portion, and a fourth side portion positioned facing the third side portion,
a first terminal provided in the first side portion,
a second terminal provided in the second side portion,
a lead member of which one end is coupled to the first terminal and the other end is coupled to the second terminal, and which has a first refraction point and a second refraction point and is provided inside the housing, and
a guide member provided so as to surround at least a part of the lead member,
in a direction intersecting with a direction from the first side portion toward the second side portion, at least a part of the lead section positioned between the first refraction point and the second refraction point in the lead member and a virtual straight line that connects the first terminal and the second terminal intersect with each other at a center portion where distances to the first terminal and the second terminal on the virtual straight line are equal to each other, and
a shortest distance between the transistor and the third side portion is equal to or shorter than a shortest distance between the transistor and the first side portion, and is equal to or shorter than a shortest distance between the transistor and the second side portion.