Ink ribbon cassette
US4676681A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1985 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Jun 25, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J35/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink ribbon cassette has a box-shaped ribbon container for housing an endless ink ribbon and a ribbon protector positioned between a sheet of print paper and the ink ribbon exposed between ribbon guide arms. The ribbon protector is elongate in shape and has a pair of holes defined in the opposite ends thereof and a central hole. The ribbon protector is mounted in position by fitting the end holes thereof over projections on the ribbon guide arms. The ink ribbon cassette also has a pair of holders for preventing the mounted ribbon protector from being detached from the ribbon guide arms. During a printing operation, the ink ribbon is pressed against the sheet by a print head through the central hole in the ribbon protector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.