HP Color 9850mfp Service Manual - Page 355

II UNIT EXPLANATION Q5686A/Q5687A STACKER (4) Three-folding mode An finisher operation signal from the finisher turns on the stacker entrance motor (M713) to start a high speed rotation. The moment the stacker entrance sensor (PS705) detects the trailing edge of paper, M713 changes to a low speed rotation to convey paper to the stacker at low speed. A specified period of time after the low speed rotation starts, M713 resumes the high speed rotation to stand by for the conveyance of the next page. Upon completion of the alignment of the last paper of the copy and the completion of the movement of the booklet stopper to the three-folding position, M713 stops. The moment the folding exit sensor (PS725) detects the trailing edge of the paper bundle, the stacker entrance motor (M713) turns on and returns to the high speed rotation to stand by for the conveyance of the next page. Stacker entrance sensor (PS705) Stacker entrance motor High speed (M713) Low speed Stopper motor (M718) DOWN UP Folding exit sensor (PS725) [1] [2] [1] Finisher operation start signal ON [2] Paper conveyance to the stacker at low speed [3] Last paper of the copy [3] [6] [4] [5] [4] Movement of the booklet stopper to the three-folding position [5] Three-folding exit operation [6] Standing by for the paper of the next copy 2-25