Tray Movement Mechanism 
B804/B805 46  SM 
 
B804 
When the actuator on the tray activates the upper tray full sensor [H] the tray lift 
motor [A] switches off. Operation resumes after some copies are removed from 
the tray. Upper Tray Capacity: 2,000 sheets (A4, LT) 
B805 
The operation of the upper tray full sensor is the same as the B804. Capacity: 
1,500 sheets for A3, B4 or other large paper. 
An additional upper tray full sensor (below sensor [H]) allows more sheets to 
stack on the upper tray. Capacity: 3,000 sheets (A4, LT) 
 
2.4.2  LOWER TRAY (B804 ONLY) 
 
The lower tray sensor actuator arm [A] rests on the top of the stack of stapled booklets as 
they are output to the lower tray. A flap depressor [B] keeps the open ends of the booklets 
down. 
The front lower tray full sensor (S34) [C] and rear lower tray full sensor (S33) [D] detect 
when the lower tray is full of booklets.   
 
  The front lower tray full sensor is mounted higher than the rear lower tray full 
sensor. 
  The lower tray is stationary. When it becomes full, the stapling and folding job stops 
until booklets are removed from the tray.