发明名称 |
Dot matrix print head |
摘要 |
A dot matrix print head has a unitary member in the manner of a ring with a plurality of integral projections formed to position the armatures of print wire actuators, and ring portions to space the forward and rearward assembly of parts of the print head. An annular resilient member provides means for retaining the print wire actuators in one position.
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申请公布号 |
US4548521(A) |
申请公布日期 |
1985.10.22 |
申请号 |
US19830559993 |
申请日期 |
1983.12.09 |
申请人 |
NCR CORPORATION |
发明人 |
WIRTH, ROBERT L.;WILSON, HILLIS L. |
分类号 |
B41J2/235;B41J2/275;(IPC1-7):B41J3/12 |
主分类号 |
B41J2/235 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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