Global Patent Index - EP 3626462 A1

EP 3626462 A1 20200325 - RECORDING APPARATUS AND RECORDING METHOD

Title (en)

RECORDING APPARATUS AND RECORDING METHOD

Title (de)

AUFZEICHNUNGSVORRICHTUNG UND AUFZEICHNUNGSVERFAHREN

Title (fr)

APPAREIL ET PROCÉDÉ D'ENREGISTREMENT

Publication

EP 3626462 A1 20200325 (EN)

Application

EP 19195988 A 20190906

Priority

JP 2018175209 A 20180919

Abstract (en)

A recording apparatus (250, 250a, 250b) includes a recording head (160, 160a), a light source (150), an irradiation optical device (110), a coupling optical device (120), a detector (130), and an arithmetic device (140). The recording head (160, 160a) is configured to eject liquid containing scattering particles. The irradiation optical device (110) is configured to irradiate the recording head (160, 160a) with an irradiation light being at least a part of light emitted from the light source (150). The coupling optical device (120) is configured to couple reflected or scattered light with reference light to from a coupled light. The detector (130) is configured to detect the coupled light formed by the coupling optical device (120). The arithmetic device (140) is configured to acquire an optical interference tomographic image of the liquid inside the recording head (160, 160a) based on the coupled light.

IPC 8 full level

B41J 2/165 (2006.01); B41J 2/21 (2006.01); B41J 29/393 (2006.01)

CPC (source: EP)

B41J 2/16579 (2013.01); B41J 2/2142 (2013.01)

Citation (applicant)

JP 2005161838 A 20050623 - SEIKO EPSON CORP

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3626462 A1 20200325; JP 2020044734 A 20200326

DOCDB simple family (application)

EP 19195988 A 20190906; JP 2018175209 A 20180919