Automatic paper feeding apparatus and transaction machine suitable for the same

The invention relates to an automatic paper feeder, for scanning an object, which is relatively provided with a scanner and a transparent baseboard, wherein the scanner is provided under the transparent baseboard and comprises a scanning line, which comprises a body; an arc plate provided on the body and provided with a plurality of convex structures and openings, wherein the convex structures abut against with the transparent baseboard to provide a space between the arc plate and the transparent baseboard to contain an object and the openings are provided in the space; and a plurality of elastic pressers in relative openings and connected with the arc plate, which are alternatively provided to press the object arrived in the space to contact the scanned area of the object with the transparent baseboard, therefore, the scanning line of the scanner can attain the picture data of the object in the scanned area. The inventive automatic paper feeder can improve the clearness of a scanned picture.