Abstract: A dust-collecting padding is placed at the leading edge of the scan window of a scanner. When this dust-collecting padding is in contact with the document to be scanned, the dust particles on the document are collected by the dust-collectng padding, thus maintaining the cleanliness of the document and the scan window. The focal point of the scanning light, where the document is read, can be adjusted to be located away from the surface of the glass window, and thus any dust particles lying on the glass surface are off focus and do not adversely affect the quality of scanning much.

Abstract: A reinforced swing seat includes a swing seat having a pair of reinforcing members embedded in two opposite end portions of the swing seat, each reinforcing member made of reinforced engineering plastic material and integrally molded and combined with an intermediate strap portion disposed between the two opposite end portions of the seat and each reinforcing member having a plurality of stabilizing stems respectively protruding upwardly and downwardly from the reinforcing member to increase its cross linking and binding with the swing seat also made of plastic material but with lower cost when integrally molded together, thereby providing a swing seat having proper tensile strength and reasonable cost.