The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2024
Filed:
Jun. 17, 2019
Konica Minolta, Inc., Tokyo, JP;
Shinichi Kawaguchi, Sagamihara, JP;
Hajime Nakamura, Hachioji, JP;
KONICA MINOLTA, INC., Tokyo, JP;
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.