DOCUMENT FEEDING DEVICE, IMAGE READING DEVICE, AND IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To provide a document feeding device, capable of effectively preventing unstiffening or leaning of documents on a paper delivery tray while restricting vibration or noise by devising the optimum structure for delivery rollers. SOLUTION: A pair of delivery rollers 24a and 24b are disposed above one end of a delivered document loading means 16, and the delivery rollers 24a and 24b carry the document D to be delivered to the delivered document loading means 16. The delivery roller 24a on the drive side totally comprises a cylindrical surface. The delivery roller 24b on the driven side has a cylindrical surface 24F at a center, and roulette-like surfaces 24G on both sides of it. Pressure of holding is concentrated at abutment parts of the cylindrical surfaces to each other, therefore vibration or noise is not generated due to irregularities in the roulette-like surfaces 24G having less pressure. COPYRIGHT: (C)2006,JPO&NCIPI