Direct printing method utilizing continuous deflection and a device for accomplishing the method
US5774159A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Sep 13, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/4155
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method provide direct electrostatic printing onto an information carrier. Computer-generated electronic signals define an image and are converted to a pattern of electrostatic fields to selectively control the deposition of charged toner particles in an image configuration directly onto the information carrier. The electrostatic fields are applied via a set of print electrodes which selectively permit or restrict the transport of the charged toner particles from a particle source toward the information carrier. Periodically variable deflection potentials are applied to a set of deflection electrodes to modify the trajectories of the toner particles as they are transported toward the information carrier to direct the toner particles in a direction transverse to the direction of the movement of the information carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.