Ricoh SP 8400DN Field Service Manual page 2014

2. Detailed Descriptions
Tray lift/descent mechanism
The tray lift motor is coupled with the lift shaft, so that when the shaft rotates, the tray bottom plate rises.
Conditions for tray lift
• The main power is turned ON.
• During copying, the tray upper limit sensor is ON (the sensor is not blocked)
• The top cover is closed and the tray upper limit sensor is ON.
• The main machine recovers from low power mode.
• The tray lifts until the upper limit sensor turns OFF (the sensor is blocked).
No.
1 Upper limit sensor
2 Actuator
Conditions for tray descent
• The right cover is opened.
• Paper end is detected.
• The tray descends until the lower limit sensor turns OFF (the sensor is blocked).
30
Description