| 摘要 |
<p>Blockage of reading head sensors in a card processor is prevented by removing fine dust particles and dirt. This can be prevented with a rectangular cleaning card comprising a substrate, which comprises resilient paper, compound resin, or a thin metallic sheet, the substrate having flat portions at both ends of the rectangle, and a curved portion, convex on one side of the card and concave on the other, provided roughly in the center of the card; a cleaning face member, comprising unwoven cloth of extremely fine texture, pasted to the front face of the substrate, and magnetic strips, provided on the cleaning face and near the ends of the rectangle; and a rectangular cleaning card, comprising a substrate, which comprises resilient paper, compound resin, or a thin metallic sheet, the substrate having at least two curved portions, convex on one side of the card and concave on the other, and a cleaning face member, comprising unwoven cloth of extremely fine texture, pasted to the front face of the substrate. <IMAGE></p> |
