2.17.5 Paper delivery switching
Depending on the selected finishing mode, the copies
are directed up or down by the junction gate [A]. A
two-way solenoid is used to control the junction gate.
1. When the exit sensor of the copier is activated
while in staple mode, the solenoid [B] pulls the
plunger in the arrow [C] direction. The junction
gate directs the copies down to transport them to
the jogger unit.
2. When the exit sensor of the copier is activated
while in the sort/stack mode, the solenoid pushes
the plunger in the arrow [D] direction. The junction
gate directs the copies up to deliver them to the
shift tray.
The junction gate keeps its position until a different
finishing mode is selected.
2.17.6 Shift tray up/down mechanism
The vertical position of the shift tray [A] is controlled by
the shift tray lift motor (dc motor) [B] through the gears
and the timing belts [C]. When the main switch is turned
on, the tray position is initialized to the upper position.
The tray’s upper most position is detected when the shift
tray pushes up the actuator [D] to de-actuate the stack
height sensor 1 [E].
While copying, the actuator [D] is gradually raised as the
copy stack grows. In the sort/stack mode, when the
stack height sensor 2 [F] remains actuated for 3
seconds, the shift tray lift motor [B] rotates, lowering the
tray unit for 50 ms.
In staple mode, when the stack height sensor 1 remains
de-actuated for 3 seconds, the motor rotates lowering
the tray until the sensor [E] is actuated.
When the tray reaches its lower limit position, the lower
limit sensor [G] is actuated by the actuator [H], and copy
operation stops.
After the copy process is finished and the machine
stops, the tray is raised to its upper most position 3
seconds after the copies are removed.
A mechanical safety switch [I] is installed to prevent the
drive gears from being damaged if the sensor does not
work. When the shift tray pushes up the shift tray
positioning roller [J], the shift tray lift motor stops.
[A]
[B]
[D]
(1) Staple Mode (2) Sort/Stack Mode
[A]
[E]
[D]
[F]
[B]
[H]
[J]
[C]
[I]
[G]
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