High speed basic and condensed tab racks
US4350455A · kind A · utility
1Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1979 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Dec 26, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J21/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a high speed trail printer an improved electronic tab rack is provided. A method and apparatus are disclosed for decreasing the time required to determine the location of the next tab involving accessing a condensed tab rack. The condensed tab rack is set up when the tabs are entered and contains for each byte of the basic tab rack one bit indicating whether or not the associated tab rack byte specifies at least one tab stop position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.