Ink ribbon positioning system for color printing apparatus
US4893951A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Mar 17, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J35/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A color ink ribbon positioning system for use with color printing apparatus that uses a color ink ribbon having a plurality of different colored ink regions formed at predetermined intervals on a ribbon base, in which only a single ink region marker block is provided for each set of colored ink regions, includes a detector for detaching the ink region marker block and a calculating unit for determining the leading edge of each color ink region that is to be successively arranged next to the printer head, so that is it only necessary to detect the single marker block in order to advance the ribbon to print the successive colors of a set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.