Method and apparatus for setting and varying margins and line spacing on data printers
US4311399A · kind A · utility
34Cited by
12References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1979 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Jul 25, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S400/903
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The specification discloses a method and apparatus for setting and varying margins, line spacing and printing direction of a data printing machine by a machine user before and during printing by use of a keyboard with push-button control which is coupled to a digital controller to input information about the actual and the desired location of a print head relative to a printing surface, in response to which the controller outputs signals which control relative motion of the print head and indexes its relative position, from the actual to the desired direction and location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.