hp Color 9850mfp REGISTRATION/ADU/REVERSE/PAPER EXIT II UNIT EXPLANATION 2-51 Symbol Name Function or method M30 Registration roller motor Registration roller drive Stepping motor M31 Loop roller motor Loop roller drive Stepping motor M32 ADU reverse motor ADU reverse roller drive Stepping motor M33 Reverse/exit motor Driving of the paper exit roller, decurler roller and the reverse/ exit roller 2 Stepping motor M34 2nd transfer pressure/release motor Pressure arm drive Stepping motor M41 Paper feed motor M41 Paper feed motor Driving of ADU conveyance rollers 1 and 2, ADU pre-registration roller and the intermediate conveyance rollers 2 and 3 DC brushless motor MC1 ADU conveyance clutch 2 Transmission of driving force from the paper feed motor (M41) to the ADU conveyance roller 2 24VDC drive MC2 ADU conveyance clutch 1 Transmission of driving force from the paper feed motor (M41) to the ADU conveyance roller 1 24VDC drive MC3 ADU pre-registration clutch Transmission of driving force from the paper feed motor (M41) to the ADU pre-registration roller 24VDC drive MC4 Intermediate conveyance clutch 2 Transmission of driving force from the paper feed motor (M41) to the intermediate conveyance roller 2 24VDC drive MC5 Intermediate conveyance clutch 3 Transmission of driving force from the paper feed motor (M41) to the intermediate conveyance roller 3 24VDC drive SD4 Reverse/exit solenoid Reverse gate drive 24VDC drive PS12 Paper exit full sensor Paper exit tray full detection Photo sensor + actuator PS13 Paper exit sensor Detection of paper in the paper exit unit Photo sensor + actuator PS19 Reverse/exit sensor Detection of paper in the reverse section Photo sensor + actuator PS20 ADU conveyance sensor Detection of paper at the ADU reverse path entrance Photo sensor + actuator PS21 ADU paper reverse sensor Detection of paper in the ADU reverse section Photo sensor + actuator PS22 Registration sensor Detection of paper in the registration section Photo sensor PS23 ADU pre-registration sensor Detection of paper in the ADU paper loop section Photo sensor + actuator