Information reading apparatus having a universal contact image sensor carriage

摘要

The invention discloses a universal Contact Image Sensor (CIS) carriage for a flatbed scanner which can be adapted to various guiding and supporting structures, thereby to simplify the structure of the scanner and reduce the manufacture cost and maintenance fee. The CIS carriage consists of a bar-shaped carriage for holding a CIS module, a plurality of elastic elements, and a CIS module. The CIS carriage is lifted up to contact tightly with the bottom surface side of the sheet table to assure the sheet in focus, thereby to generate stable picture quality of images.