Invention Grant
- Patent Title: Liquid discharging apparatus
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Application No.: US17656669Application Date: 2022-03-28
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Publication No.: US11884070B2Publication Date: 2024-01-30
- Inventor: Atsushi Amano , Toru Matsuyama
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Global IP Counselors, LLP
- Priority: JP 21058294 2021.03.30
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
Provided is a liquid discharging apparatus including a drive signal output circuit that displaces between a first potential and a second potential, and a discharging portion discharging liquid, in which the drive signal output circuit includes a modulation circuit, an amplification circuit, and a demodulation circuit that includes a first capacitor and a second capacitor and outputs a drive signal, the first potential is 25 V or higher, the first capacitor and the second capacitor are coupled to each other in parallel, a change rate of an electrostatic capacitance of the first capacitor when a direct-current voltage is supplied to the first capacitor is smaller than a change rate of an electrostatic capacitance of the second capacitor when the direct-current voltage is supplied to the second capacitor, and an equivalent series resistance component of the second capacitor is smaller than an equivalent series resistance component of the first capacitor.
Public/Granted literature
- US20220314602A1 LIQUID DISCHARGING APPARATUS Public/Granted day:2022-10-06
Information query
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