Device for measuring overflow from a gutter of a print head of an ink jet printer
US10611170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2018 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Jun 14, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/1856
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A print head of a continuous ink jet printer, including, in a cover: means for producing at least one ink jet; means for separating drops of jets intended for printing from those that do not serve for printing; a slot, enabling drops intended for printing to get out; a recovery gutter (7) for drops not intended for printing, the recovery gutter comprising an ink recovery volume (12); at least one detection conductor (20), arranged inside the head; means (16) for detecting a variation in impedance of at least one of the detection conductors when ink (21) is present in contact with the conductor or with a dielectric layer (22) in contact therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.