HP Color 9850mfp Service Manual - Page 354

II UNIT EXPLANATION STACKER Q5686A/Q5687A (3) Folding and stitch-and-fold modes 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 page of the copy, M713 stops. The moment the folding exit sensor (PS725) detects the trailing edge of paper bundle, M713 turns on and returns to the high speed rotation to stand by for the conveyance of the next page. [3] [6] Stacker entrance sensor (PS705) Stacker entrance motor High speed (M713) Low speed Alignment motor U, L (M705, M716) Folding exit sensor (PS725) [1] [2] [4] [5] [1] Finisher operation start signal ON [2] Paper conveyance to the stacker at low speed [3] Last paper of the copy [4] Alignment operation of the last paper of the copy [5] Folding exit operation [6] Standing by for the paper of the next copy 2-24