| 摘要 |
<p>An impact mosaic printing head for mounting on a printing carriage and pressing against a platen is disclosed. The printing head comprises a number of styli, each stylus being activated by its own electromagnetic structure. The electromagnetic structures are radially distributed on at least a segment of a circular supporting ring member. Each electromagnetic structure includes a pole piece and an armature, each armature having a lever arm acting on a stylus. The printing head is comprised of a unitary stylus guiding assembly and a unitary electromagnet assembly, the two assemblies being independent of each other and being fixed together in a way such that they are separable without the need to disassemble either individual assembly.</p> |
