公开(公告)号：US20170182767A1

公开(公告)日：2017-06-29

申请号：US15316378

申请日：2015-06-04

Applicant: VIDEOJET TECHNOLOGIES, INC.

Inventor： Robert SMITH ,  Omer SALHADIN

IPC: B41J2/125 ,  B41J2/185 ,  B41J2/09 ,  B41J2/02 ,  B41J2/085

CPC classification number: B41J2/125 ,  B41J2/02 ,  B41J2/04561 ,  B41J2/085 ,  B41J2/09 ,  B41J2/185 ,  B41J2002/022 ,  B41J2002/1853

Abstract: A continuous ink jet print head (10), including: an ink droplet generator (116) configured to emit an ink droplet (158) along an undeflected droplet flight path (30); a charge electrode (118) configured to impart a charge to the ink droplet; deflector plates (120A, 120B) adjacent the undeflected droplet flight path, downstream from the charge electrode, and configured to deflect the ink droplet to a deflected droplet flight path that lies within a range of deflected flight paths bounded by at least deflected droplet flight path and a most deflected droplet flight path; a gutter (122) configured to receive an ink droplet traveling along the undeflected droplet flight path; and an ink buildup sensor (102) configured to detect an accumulation of ink (140) relative to a droplet flight path disposed within the range of deflected flight paths.