Method and device for detecting the presence of jets
US10286652B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Dec 13, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/125
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for detecting the presence of a jet from a multi-jet print head of an inkjet printer comprising a plurality of nozzles (4), at least one 1st and one 2nd deviation electrode (14a, 14b) for each jet, in which: the inkjet is produced by one of the nozzles, at a frequency fstim1, and is then charged by a voltage VTHT at a frequency fTHT, fTHT not being an integer multiple or sub-multiple of fstim1; a jet charge signal is detected, derived from sampling, at frequency fstim1, of the voltage at frequency fTHT, at least one spectral component of this signal being used to detect the presence of the jet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.