| 摘要 |
A printing head comprises a plurality of printing wires, a plurality of armatures connected at their tips to the base ends of the printing wires, an armature supporting member for rotatably supporting the plurality of armatures so that the tips of the armatures are movable in the longitudinal direction of the printing wires, a reciprocable drive unit for driving the plurality of armatures to reciprocate the plurality of printing wires between a projected position and a drawn position in the longitudinal direction of the plurality of printing wires, and wear resistant chips mounted on the rotatably supporting portions of the plurality of armatures on the armature supporting member.
|
