Print ribbon protection
US4376587A · kind A · utility
1Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1981 |
| Grant date | Mar 15, 1983 |
| Priority date | — |
| Expiry date | Aug 3, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J35/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a printing system employing a spliced endless print ribbon, an opening is provided in the ribbon adjacent the splice to enable sensing of the approach of the splice to the print station. Printing is suspended as the splice passes the print station to avoid undesirable printing quality and damage to the splice. The same sensing means detects lack of ribbon movement, indicative of a ribbon jam, to suspend printing and ribbon drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.