Toshiba e-STUDIO4500c Service Manual page 893

September 2006
[A]
Pressing the tray down button [A] reverses the rotation of the tray motor [B] and
lowers the tray [C].
The tray lowers until the stack sensor [D] detects the top of the stack and stops the
tray motor.
This mechanism lowers the tray by 5 cm, which gives the user enough space to
add 500 sheets of paper.
If the down switch is then pressed again, the bottom plate moves down once
again by 5 cm. This allows the customer to replenish paper in convenient
amounts and at the same position.
A lower limit sensor [E] (triggered by an actuator on the bottom of the tray) is also
provided to stop the tray motor if the stack sensor should fail.
Summary
The tray raises when:
The main power switch is turned on
When the lift sensor switches on during copying
The top cover is closed and the lift sensor switches on
The tray lowers when:
The tray down button is pressed.
The paper end sensor signals that there is no paper in the tray.
[C]
[D]
[E]
B473D108.WMF
B473-13
06/09
PAPER LIFT
[B]