Method and apparatus for controlling the size of dots produced by jetting phase change ink
US4745420A · kind A · utility
41Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jul 21, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/33
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of ejecting droplets of phase change or hot melt ink jet ink upon a target such as paper includes a step of applying pressure to the droplets after they have cooled upon the paper in order to increase their coverage and, thus, minimize the volume of ink required to produce a high quality print with a high degree of resolution. Including a means for applying pressure to the cooled droplets, a suitable apparatus increases the area of the target covered by a particular droplet after spreading by at least five percent and preferably by twenty percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.