Method and device for maintaining a nozzle print head
US11247473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2019 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Jun 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1707
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A print head of a continuous ink jet printer comprising: a cavity for the circulation of jets, delimited laterally by a 1st side wall and a 2nd side wall, both at least partially parallel to a direction of flow of the jets in the cavity, at least one nozzle for producing at least one ink jet in the cavity, at least one electrode for sorting drops or segments of one or several of the jets intended for printing from drops or segments that are not used for printing; an outlet slot, open onto the exterior of the cavity and allowing the exiting of the drops or segment of ink intended for printing, at least one gutter for recovering drops or segments not intended for printing, at least one spraying nozzle, arranged in the cavity, for projecting at least one cleaning fluid towards at least one inner portion of the cavity and a motor driving the at least one spraying nozzle in rotation about an axis (x), for example perpendicular to a direction of flow of the jets in the cavity; a supply circuit supplying at least the spraying nozzle with cleaning fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.