DEP (direct electrostatic printing) device with special printhead
US5850244A · kind A · utility
7Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1995 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Nov 8, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2217/0025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for direct electrostatic printing (DEP) including a back electrode, a printhead structure made from an insulating material and having a control electrode in combination with printing apertures, and a toner delivery apparatus that presents a cloud of toner particles in the vicinity of the printing apertures, in which the printhead structure is tightly stretched over a frame by means of lateral forces and the printhead structure has an overall flatness equal to or better than 50 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.