Dynamic modulating voltage adjustment
US12138923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2021 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Jan 18, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/022
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A continuous inkjet printer (50) has an ink droplet generator (52) and a controller (58) that varies a modulating voltage applied to the ink droplet generator (52) and measures corresponding breakup times of a jet of ink into ink droplets to obtain a portion of a characteristic of breakup time against modulating voltage. The controller (58) obtains a variation range, varies the modulating voltage over the variation range to obtain the portion of the characteristic, calculates a gradient from the portion of the characteristic, compares the gradient with a predetermined gradient and, depending on whether the calculated gradient is less than or greater than the predetermined gradient, generates an adjusted variation range that is displaced in a first sense or a second, opposite sense, respectively, relative to the variation range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.