Abstract: A computer system includes a computer device and a power adapter. The computer device is provided with a first signal connector. The power adapter includes a second signal connector, a rectifier and an input/output board module. The second signal connector is pluggably connected to the first signal connector. The input/output board module is electrically connected to the second signal connector for being detachably connected to an external device so as to allow signals to be exchanged between the computer device and the external device.

Abstract: The invention discloses an engaging apparatus applied to equipment. The engaging apparatus includes an engaging device and a second magnetic member. The engaging device is movably disposed in a cover of the equipment, and includes a first magnetic member and an engaging member. The second magnetic member is also disposed in the cover and corresponds to the first magnetic member. The cover thereon defines a first position and a second position. When the engaging device is operated to move from the first position to the second position, a magnetic force generated between the second magnetic member and the first magnetic member assists in turning back the engaging device to the first position.

Abstract: An automatic document feeder (ADF) with a feeding roller used to carry a paper sheet to a reading position is provided. The ADF comprises a feeding path, a paper cartridge, an exit roller set, and a first lever. The feeding path is arranged in the ADF for guiding the paper sheet reaching the reading position and leaving the reading position. The paper cartridge has a fixed front edge aligned with an inlet of the feeding path. The exit roller set is located by the feeding path and at a downstream position with respect to the reading position. The exit roller set includes two exit rollers leaning against each other for carrying the paper sheet leaving the ADF. The first lever is connected between the paper cartridge and one of the exit rollers. As the paper sheet is jammed at the exit roller set, the paper cartridge may be raised to drive the first lever to separate the two exit rollers for removing the jammed paper sheet.

Abstract: A scanner. An optical sensor is adjacent to a glass plate, and a support element supporting the optical sensor. A first magnet is disposed on the optical sensor, and a second magnet corresponding to the first magnet is disposed on the support element. The first magnet faces the second magnet with the magnetic poles of the same polarity disposed opposingly, thereby maintaining a predetermined distance between the optical sensor and the glass plate.

Abstract: An automatic document feeder (ADF) with a feeding roller used to carry a paper sheet to a reading position is provided. The ADF comprises a feeding path, a paper cartridge, an exit roller set, and a first lever. The feeding path is arranged in the ADF for guiding the paper sheet reaching the reading position and leaving the reading position. The paper cartridge has a fixed front edge aligned with an inlet of the feeding path. The exit roller set is located by the feeding path and at a downstream position with respect to the reading position. The exit roller set includes two exit rollers leaning against each other for carrying the paper sheet leaving the ADF. The first lever is connected between the paper cartridge and one of the exit rollers. As the paper sheet is jammed at the exit roller set, the paper cartridge may be raised to drive the first lever to separate the two exit rollers for removing the jammed paper sheet.