Invention Grant
- Patent Title: Drive circuit of recording head and image recorder
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Application No.: US17617780Application Date: 2019-06-17
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Publication No.: US11993080B2Publication Date: 2024-05-28
- Inventor: Shinichi Kawaguchi , Hajime Nakamura
- Applicant: Konica Minolta, Inc.
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: LUCAS & MERCANTI, LLP
- International Application: PCT/JP2019/023847 2019.06.17
- International Announcement: WO2020/255188A 2020.12.24
- Date entered country: 2021-12-09
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
A drive circuit of a recording head having a recording element is provided. The drive circuit supplies a load element for recording operation of the recording element with an output signal of electric power according to operation of the load element. The drive circuit includes a voltage amplifier that amplifies a voltage of an analog drive waveform signal for operation of the recording element to generate a drive voltage signal. The voltage amplifier includes amplifiers. Among the amplifiers, at least one of subsequent-stage amplifiers which are a second and subsequent amplifiers from an upstream side includes a signal feedback unit that returns a signal to be output to an input side of the subsequent-stage amplifiers.
Public/Granted literature
- US20220227129A1 DRIVE CIRCUIT OF RECORDING HEAD AND IMAGE RECORDER Public/Granted day:2022-07-21
Information query
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