Vacuum-buffered bidirectional paper drive system
US4000803A · kind A · utility
7Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1976 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Jan 21, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H23/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A printer-plotter system includes a vacuum-buffered bidirectional paper drive system for moving paper uniformly forward and backward over a sprocketed platen and sprocketed drum. The platen comprises a stationary portion with a flat region and a rotatable sprocketed portion. The platen and drum are connected by a drive belt for synchronous rotation of the drum with the sprocketed portion of the platen to assure proper contact of a print head with the flat region of the stationary portion and proper movement of paper by the sprocketed portion after printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.