hp Color 9850mfp PAPER FEED TRAY /1 TO /3 8.2.2 Up/down plate control When the paper feed tray 1 is set to the engine, the tray up drive motor 1 (M40) of the engine The up/down plate in the paper feed tray is driven by the wire. starts to rotate. As a result, the wire is wound around the drive pulley and the up/down plate goes up. When the tray upper limit sensor 1 (PS30) detects the upper limit of paper, M40 turns off. When the PS30. At this time, M40 keeps on until the PS30 detects the upper limit of paper again. Accordingly, amount of paper gets reduced as a result of the passage of paper, a no paper detection is made by the paper is lifted up to the fixed level at all times.
When the paper feed tray 1 is pulled out, the coupling is released from the drive section and the up/down II UNIT EXPLANATION plate goes down by its own weight. 2-43