Scanning apparatus

摘要

A scanning apparatus includes a scanning module, a calibration plate, and a driving module. The calibration plate includes a first background region for calibrating the brightness of the scanning module and a second background region for intensifying an edge of a document to be scanned. The driving module is used for driving movement of the calibration plate. As a consequence, the scanning light beam from the scanning module is projected onto the first background region or the second background region of the calibration plate. Under this circumstance, the purposes of calibrating the brightness and increasing the image processing efficiency are both achieved. Moreover, since the calibration plate is driven by the driving module to be moved in the direction parallel with said scanning light beam, the purpose of dynamically adjusting the brightness can be achieved.

主权项

1. A scanning apparatus, comprising:
a scanning module for generating a scanning light beam; a calibration plate facing said scanning module, and comprising a first background region and a second background region; and a driving module for driving said calibration plate, so that said scanning light beam from said scanning module is projected onto said first background region or said second background region of said calibration plate, wherein said driving module is located at a side of said calibration plate, and said driving module comprises: a first linking mechanism comprising a protrusion block; and a second linking mechanism connected with said first linking mechanism and said calibration plate, wherein as said first linking mechanism is moved, said second linking mechanism is driven by said protrusion block of said first linking mechanism, and said calibration plate is correspondingly moved with said second linking mechanism.