发明公开
- 专利标题: DOT MATRIX PRINT HEAD ASSEMBLY
- 专利标题(中): DOT MATRIX打印头组件
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申请号: EP89905926申请日: 1989-05-02
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公开(公告)号: EP0418268A4公开(公告)日: 1991-09-11
- 发明人: KERSEY, KEVIN THOMAS
- 申请人: DH TECHNOLOGY, INC.
- 申请人地址: 15070 AVENUE OF SCIENCE; SAN DIEGO CALIFORNIA 92128
- 专利权人: DH TECHNOLOGY, INC.
- 当前专利权人: DH TECHNOLOGY, INC.
- 当前专利权人地址: 15070 AVENUE OF SCIENCE; SAN DIEGO CALIFORNIA 92128
- 优先权: US18539088 1988-05-06
- 主分类号: B41J2/28
- IPC分类号: B41J2/28 ; B41J2/275 ; B41J2/235
摘要:
A matrix print head including a housing (20) accommodating a plurality of longitudinally displaceable print wires (26) and a plurality of armatures (28) driveable by electromagnets (34, 36) to displace the print wires (26) forwardly from a non-print to a print position. The armatures (28) are pivotally supported on a pivot support (240) and are positioned between the associated electromagnets and a retaining flange. The armature members (28) are fixedly connected to the print wire members (26) to provide individual combination print wire and armature subassemblies operable in a non-ballistic mode to reduce the number of parts and facilitate repair or replacement. The wire (26) impacts the paper before the armature fully engages on the pole end surface (78) to create a rebound force.
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