High speed printer
US3954167A · kind A · utility
8Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1974 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | Oct 17, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J33/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Ribbon reversing mechanism in a high speed printer (telecircuitry) including a ribbon driving stepping motor and a print head drive motor both incrementally driven by pulses from the telegraph circuit. The gear ratios in the ribbon drive train are chosen to ensure that the ribbon is advanced in increments different than the increments of print head movement. The ends of the ribbon are provided with eyelets which are sensed by a mechanism which operates to reverse the ribbon driving motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.