Rotary wheel printer
US4565128A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1984 |
| Grant date | Jan 21, 1986 |
| Priority date | — |
| Expiry date | Jul 2, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J32/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A rotary wheel printer such as a daisy wheel printer includes a rotatable platen for receiving a paper sheet partially therearound, a carriage movable along the platen, and a type wheel mounted on the carriage in confronting relation to the platen and having a plurality of type fonts. The type wheel is inclined with respect to a horizontal plane, and first drive means are mounted on the carriage and inclined with respect to the horizontal plane for driving the type wheel to rotate about is own axis. Hammer means are also mounted on the carriage for pressing the type fonts and second drive means are mounted on the carriage for driving the hammer means. A ribbon cassette is mounted on the carriage and accommodates an ink ribbon, the ribbon cassette having slanted surfaces at a front portion thereof in which the ink ribbon is exposed adjacent to the print wheel. The slanted surfaces are inclined at the same angle as the type wheel, and the ribbon feeder means for successively feeding the ink ribbon are accommodated in the ribbon cassette. Third drive means are mounted on the carriage for driving the feeder means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.