EP 3446878 A1 20190227 - DROPLET EJECTING DEVICE AND METHOD FOR MAINTAINING DROPLET EJECTING DEVICE
Title (en)
DROPLET EJECTING DEVICE AND METHOD FOR MAINTAINING DROPLET EJECTING DEVICE
Title (de)
TRÖPFCHENAUSGABEVORRICHTUNG UND -VERFAHREN ZUR AUFRECHTERHALTUNG EINER TRÖPFCHENAUSGABEVORRICHTUNG
Title (fr)
DISPOSITIF D'ÉJECTION DE GOUTTELETTES ET SON PROCÉDÉ D'ENTRETIEN
Publication
Application
Priority
- JP 2016082831 A 20160418
- JP 2017010311 W 20170315
Abstract (en)
Provided are a droplet ejecting device and a maintenance method therefor, with which pressurized maintenance is selectively performed on some ejection heads while the meniscus surface of ink is appropriately maintained in an easy and simple manner. This inkjet recording device is provided with: a plurality of inkjet heads (211); a liquid-feeding shared flow channel (256) and individual flow channels (257) for guiding ink into each of the inkjet heads (211); individual supply valves (258) for switching the respective individual flow channels (257) between open and closed states; a liquid-feeding pump (253) for pressure-feeding ink to the inkjet heads (211); and a control unit (40) for opening some of the individual supply valves (258) and pressure-feeding ink into the inkjet heads (211) that correspond thereto, and subsequently opening all of the individual supply valves (258) and pressure-feeding ink into all of the inkjet heads (211).
IPC 8 full level
B41J 2/165 (2006.01); B41J 2/175 (2006.01); B41J 2/18 (2006.01)
CPC (source: EP)
B41J 2/155 (2013.01); B41J 2/165 (2013.01); B41J 2/175 (2013.01); B41J 2/17596 (2013.01); B41J 2/18 (2013.01)
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 3446878 A1 20190227; EP 3446878 A4 20190410; EP 3446878 B1 20200909; JP 6950682 B2 20211013; JP WO2017183363 A1 20190228; WO 2017183363 A1 20171026
DOCDB simple family (application)
EP 17785705 A 20170315; JP 2017010311 W 20170315; JP 2018513068 A 20170315