Aerodynamic error reduction for liquid drop emitters
US7758171B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for forming a liquid pattern including forming non-print drops by applying non-print drop forming energy pulses during a unit time period, τ0, and forming print drops by applying print drop forming energy pulses during a large drop time period, τm, wherein the large drop time period is a multiple, m, of the unit time period, τm=mτ0, and m≧2; and a corresponding plurality of drop forming energy pulses sequences are formed so as to form non-print drops and print drops according to the liquid pattern data. The corresponding drop forming energy pulse sequences applied to adjacent drop forming transducers are substantially shifted in time so that the print drops formed in adjacent streams of drops are not aligned along the nozzle array direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.