DRIVE CIRCUIT OF RECORDING HEAD AND IMAGE RECORDER

Title:

DRIVE CIRCUIT OF RECORDING HEAD AND IMAGE RECORDER

Document Type and Number:

WIPO Patent Application WO/2020/255188

Kind Code:

A1

Abstract:

Provided is a drive circuit of a recording head and an image recorder that can output a signal with good frequency response to a load element of the recording head in an easier and stable manner. In response to a load element for a recording operation performed by a recording device of a recording head provided with the recording device, the drive circuit of the recording head for supplying an output signal with power corresponding to an operation of the load element comprises a voltage amplifying unit (31) that amplifies the voltage of an input signal (Vin) for the operation of the recording device and generates a driving voltage signal (Vd). The voltage amplifying unit (31) comprises a plurality of amplifying units. From among the amplifying units, at least one of second and subsequent downstream amplifying units (312) from the upstream side includes a negative feedback circuit (F10) that returns, to the input side of the downstream amplifying unit (312), a signal to be output.

Inventors:

KAWAGUCHI SHINICHI (JP)
NAKAMURA HAJIME (JP)

Application Number:

PCT/JP2019/023847

Publication Date:

December 24, 2020

Filing Date:

June 17, 2019

Export Citation:

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Assignee:

KONICA MINOLTA INC (JP)

International Classes:

B41J2/015; B41J2/045; B41J2/14

Domestic Patent References:

WO2016181946A1

2016-11-17

Foreign References:

JP2012045913A	2012-03-08
JP2008018657A	2008-01-31
JP2005169737A	2005-06-30
US20030202024A1	2003-10-30
JP2005169737A	2005-06-30

Other References: