Tandem type of direct printing apparatus using gating apertures for supplying toner
US6270196A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1998 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Dec 16, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/4155
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A tandem type direct printing apparatus 2 comprising a plurality of printing stations 16a, 16b, 16c and 16d for depositing printing particles 38 on a print medium 8. The plurality of printing stations 16a, 16b, 16c and 16d are positioned in a moving direction of the print medium 8. Each printing station 16a, 16b, 16c, 16d comprises a bearing member 30 for bearing charged printing particles 38 thereon, a backing electrode 44 opposed to the bearing member 38, a printing head 50 disposed between the bearing member 30 and the backing electrode 44, the printing head 50 having a plurality of apertures 56 through which the printing particles 38 can propel and a plurality of electrodes 68 disposed around the plurality of apertures 56. Each of the plurality of apertures 56 of the printing head 50 in any one of the printing stations 16b corresponds to the aperture 56 of the printing head 50 in another printing station 16a so that the latter is closest to a line along the moving direction of the printing medium which passes through the center of the former.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.