Ricoh B230 Service Manual page 1168

Detailed Section Descriptions
Output Tray Up/Down Mechanism
Overview
The output tray motor gear [A] lifts/lowers the tray if the stack height is not at the target
position.
Gears [B] and [C] keep the angle of the tray constant at any tray position.
Output Tray Downward Movement
The top of the paper stack is checked after every page (or set of pages) has been fed out.
If the top of the stack is higher than the target level, the output tray motor moves the tray
down.
When the stack near-limit sensor [D] detects the actuator on gear [C], a stack near-limit
signal is transferred to the main frame. The tray cannot move any lower. The next time the
top of the stack height is above the target level, printing stops.
Output Tray Upward Movement
If paper is removed from the stack, the top of the stack will be lower than the target level,
and the output tray motor moves the tray up.
When the tray upper limit sensor [E] detects the actuator on gear [B], the tray cannot be
moved up any more, so the motor stops.
B792 16 SM