Patent ID: 7636541

Claim:
A mobile paper guide adapted to an automatic document feeder is comprised of: a draft platen; one or a plurality of connection rod including a knob inserted onto the draft platen and an arm extending outwardly from the knob; a preset friction being provided at where between the knob and the draft platen; the connection rod rotates as driven by the draft platen; and both of the connection rod and the draft platen turning around against each other as the connection rod being limited in position; and one or a plurality of paper guide plate relatively and movably disposed to the arm extending from the connection rod; the automatic document feeder including one or a plurality of chute disposed in relation to where above the paper guide plate; and the paper guide moving up and down in the chute to retain and align the paper sheet, wherein the draft platen is provided with a circular locking slot at where in relation to the connection rod; and a clamping part is provided protruding from the connection rod at where in relation to the locking slot to secure the connection rod to the draft platen.