Patent · US Expired

Method for conditioning inkjet fluid droplets using laminar airflow

US6984028B2 · kind B2 · utility

3Cited by
8References
53Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 25, 2003
Grant dateJan 10, 2006
Priority date
Expiry dateSep 5, 2023

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2202/02
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A multirow multinozzle continuous inkjet head comprises a plurality of rows of inkjet nozzles ejecting drops in regions of airflow velocity within a collinear flow of air. The airflow velocity at all nozzles is equal, but lower than the highest airflow velocity within the collinear flow of air. This allows many more drop streams to be placed in a velocity-matched airstream. Despite the drops being in regions with air velocity gradients across the drops, it is found that the lateral forces are such that droplet placement on the print media surface is accurate and well controlled.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.