Stationary printhead with moving platen
US5135317A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1991 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Sep 4, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K1/121
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Accordingly, an apparatus has been provided for printing identifying indicia on a work product. The apparatus includes a print mechanism and a transport for imparting relative motion between the work product and the print mechanism. The work product and the print mechanism are positioned in close proximity to one another. A control is provided for causing the print mechanism to print predetermined identifying information on the work product when the work product and the print mechanism reach a desired location as they move with respect to each other. In the preferred embodiment the print mechanism has a fixed print electrode with a moving resistive ribbon associated therewith. A track is provided for supporting the work product on air bearings. A moving vacuum belt moves the work product along the track and thereby moves the work product with respect to both the print electrode and the ribbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.