| 摘要 |
<p>PRINT HEAD The print head in a high-speed printer of the dot matrix type is provided with a bearing comprising an element fixedly attached to the front wall of a plastic block. The element is made of a material substantially harder than plastic, such as metal or a jewel. Guide passages extending through the element are aligned with similar guide passages in the plastic block and are axially directed towards a paper document. The forward end of the print head is provided with slots for receiving the plastic block which may be releasably secured into position by means of a substantially U-shaped compliant brad, greatly simplifying both assembly and disassembly thereof.</p> |
