Serial electric printer using single unidirectional motor
US4551033A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1983 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Apr 25, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J1/50
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A serial printer having a carriage adapted to be shifted transversely of a paper and a type cylinder carried by the carriage in such a manner as to be able to be shifted up and down and to be rotated, so that the printing is effected by pressing the desired type character against the paper. The improvement comprises that the vertical shifting of the type cylinder, rotation of the type cylinder, driving of the hammer, shifting of the carriage and other kinds of operation are performed by the force derived from a single motor, and that operation such as spacing and back spacing of the carriage, paper feeding and so forth is achieved when the type cylinder selects a visible position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.