Q5686A/Q5687A STACKER (3) Folding and stitch-and-fold modes After completion of the stapling operation, paper is moved to the folding position. The paper exit arm do not rotate. This prevents the paper standing by at the folding position from coming into contact with the paper exit arm. (4) Three-folding mode Upon completion of the proper alignment of paper, M707 rotates in the reverse direction to support the paper conveyance to the three-folding position. When PS709 turns on from off, M707 stops. II UNIT EXPLANATION 2-27