| 摘要 |
A printing head for a wire dot printer having printing wires each of which is attached to an armature, wire driving mechanisms for reciprocating the printing wires in a first direction, each having the armature moved in the first direction, a magnetic frame including an air gap in which the armature is received swingably in the first direction, a magnetizing coil for generating a magnetic flux in the air gap, a sliding portion formed in the magnetic frame for adjusting the length of the air gap, and an armature support member attached to the magnetic frame to resiliently support the armature, the armature support member being slidable not only in the first direction but also in a second direction which is perpendicular to the first direction so that the free position of the armature may be adjustable independently of the adjustment of the length of the air gap. |
