EP 3127705 A1 20170208 - INKJET HEAD DRIVING METHOD AND INKJET PRINTING APPARATUS
Title (en)
INKJET HEAD DRIVING METHOD AND INKJET PRINTING APPARATUS
Title (de)
TINTENSTRAHLKOPFANTRIEBSVERFAHREN UND TINTENSTRAHLDRUCKVORRICHTUNG
Title (fr)
PROCÉDÉ D'ENTRAÎNEMENT DE TÊTE À JET D'ENCRE ET APPAREIL D'IMPRESSION À JET D'ENCRE
Publication
Application
Priority
- JP 2014073970 A 20140331
- JP 2015060018 W 20150330
Abstract (en)
The purpose of the present invention is to provide an inkjet head driving method and an inkjet printing apparatus that can suppress reduction of productivity while limiting occurrence of satellites and are capable of high quality image printing even when multiple droplets are discharged in a one-pixel period to form a large dot on the medium. The drive signal, when applying a discharging pressure on a liquid in a pressure chamber by applying the drive signal on a pressure-generating means to discharge droplets from a nozzle, comprises at least two kinds of drive signals, a first drive signal (PA) for discharging a droplet and a second drive signal (PB) for discharging a large droplet at a relatively slower speed than the first drive signal (PA). Pixels of dots obtained from droplets on a medium are formed by applying N of the second drive signals (PB) and applying the first drive signal (PA) at least at the end of a one-pixel period to discharge droplets from the same nozzle; N is an integer of at least 1.
IPC 8 full level
B41J 2/015 (2006.01); B41J 2/045 (2006.01); B41J 2/14 (2006.01); B41J 2/205 (2006.01)
CPC (source: EP)
B41J 2/04573 (2013.01); B41J 2/04581 (2013.01); B41J 2/04588 (2013.01); B41J 2/04593 (2013.01); B41J 2/04595 (2013.01); B41J 2202/10 (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 3127705 A1 20170208; EP 3127705 A4 20171108; EP 3127705 B1 20201104; CN 106457823 A 20170222; CN 106457823 B 20180904; JP 6497384 B2 20190410; JP WO2015152186 A1 20170413; WO 2015152186 A1 20151008
DOCDB simple family (application)
EP 15774447 A 20150330; CN 201580024427 A 20150330; JP 2015060018 W 20150330; JP 2016511902 A 20150330