Abstract: A solenoid valve and an automatic document feeder using the solenoid valve are provided. The solenoid valve includes a valve body, a valve spindle, a spring, a ring-shaped groove and muffling ring. The ring-shaped groove is sheathed around the valve spindle. The muffling ring is disposed within the ring-shaped groove. When the valve body is magnetized to magnetically attract the valve spindle, the valve spindle is moved within the valve body, and the muffling ring collides with the recess inner wall, thereby reducing collision noise.

Abstract: The present invention relates to a sheet-feeding scanning apparatus having a business card feeding mechanism. The sheet-feeding scanning apparatus is adapted for scanning an image of an ordinary document or a business card. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a first channel, a second channel, a transfer roller assembly, a business card input tray and a business card pick-up roller assembly. The business card feeding mechanism can provide a relatively flat feeding and scanning channel for the business card such that the bending degree of the business card during transportation is reduced.

Abstract: A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a transfer channel, a plurality of transfer rollers, a business card input tray, and a business card pick-up roller assembly. The business card input tray has a business card support plate. In a case that a jam event occurs, the business card support plate may be swung for facilitating removing the jammed business card.

Abstract: A sheet-feeding scanning apparatus having a business card feeding mechanism is provided. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, a transfer channel, a plurality of transfer rollers, an ejecting tray, an ejecting roller assembly, a business card input tray, and a business card pick-up roller assembly. The business card input tray includes a business card support plate, a spring, a separation slice and a position-limiting glide slot. The business card pick-up roller assembly includes a business card pick-up roller, a business card separation roller and a shaft rod. The shaft rod is sheathed by the business card separation roller. The sheet-feeding scanning apparatus is adapted for scanning images of multiple ordinary documents or multiple business cards.

Abstract: The present invention relates to a sheet-feeding scanning apparatus having a business card feeding mechanism. The sheet-feeding scanning apparatus is adapted for scanning an image of an ordinary document or a business card. The sheet-feeding scanning apparatus includes a scanning module, an ordinary document input tray, an ordinary document pick-up roller assembly, an ejecting tray, a first channel, a second channel, a transfer roller assembly, a business card input tray and a business card pick-up roller assembly. The business card feeding mechanism can provide a relatively flat feeding and scanning channel for the business card such that the bending degree of the business card during transportation is reduced.