Inking apparatus for a wire matrix printer
US4643599A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1985 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Jul 30, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/305
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A wire matrix printer head has a group of print wires guided so as to pass through holes formed in an ink reservoir. The group of print wires are operatively connected to an actuator unit provided within a housing, the group of print wires having their free ends slidably supported by a bearing plate secured to one end of the housing. An ink chamber is disposed at the rear of the bearing plate, and within the ink chamber is provided an ink reservoir and a spring urging means for urging the ink reservoir towards the bearing plate. The ink reservoir has a sufficiently large clearance relative to each of the print wires, and accordingly, a supply of ink to the respective print wires is transmitted via the back surface of the bearing plate rather than a direct supply thereof from the ink reservoir to the print wire to prevent a deterioration of the ink reservoir due to highly frequent frictions between the ink reservoir and the respective print wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.