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Pressing and support A sensor (Q12-172)
Pressing finger
Support
finger
Pressing and support
B sensor (Q12-171)
Figure 18 Ejector roll components
Principles of Operation
Pressing and support
C sensor (Q12-173)
Gear wheel
Pressing and support
Pressing and support
encoder sensor (Q12-093)
motor (MOT12-323)
Stacker
This section covers bin 1 tray movement and control. As the bin fills, the tray moves down to
maintain the top of the stack at the correct level. This is controlled by the bin 1 upper level sen-
sor, which is in two parts, and also by the paper pressing sensor that senses the top edge of
the rear wall of the stack of paper. If the paper stack is flat, the paper pressing sensor will con-
trol the stack height, and if the paper stack is curved, the bin 1 upper level sensor will detect
the top of the stack and control its height. There is a 90% full sensor, used to warn the user that
the bin is nearly full, and there are upper and lower limit switches, to keep the tray within its
allowable range of movement. The active components comprising the stacker are:
•
Bin 1 elevator motor, MOT12-241 - A DC motor, located on the rear frame. This motor lifts
and lowers the paper stack via a gear chain, driving two toothed belts. In the forward
direction, this motor drives the stack down, and in the revers direction, the stack is driven
up. Refer to
Figure
19.
•
Bin 1 encoder sensor, Q12-163 - A standard flag, encoder-disc sensor, sensing the rota-
tion of the bin 1 elevator motor. Refer to
•
Bin 1 upper level sensor, Q12-188 - Consisting of two sensors, located in the frame at the
front and the rear of the tray. The rear sensor is used as the receiving sensor, while the
front sensor is used as the transmitter sensor. Refer to
•
Paper pressing sensor, Q12-322 - A reflective sensor, located beneath the ejector front
cover. This sensor detects the top of the rear wall of the paper stack. Refer to
•
Bin 1 90% full sensor, Q12-187 - A flag sensor, located on the rear frame and mounted on
the same bracket as the lower limit switch. The bracket has two possible positions; the
lower position, used when a tri-folder module is not installed, and the upper position, used
when a tri-folder is present. This sensor is actuated by a flag on the bin 1 rear bar lift
bracket. Refer to
Figure
19.
•
Bin1 upper limit switch, S12-190 - A micro switch, located on the rear frame. This switch
is actuated when the tray is above its normal level of operation. When this switch is actu-
ated, the reverse, upwards, direction of the elevator motor is disabled, but the motor is
allowed to drive the stack down. Refer to
•
Bin 1 lower limit switch, S12-191 - A micro switch, located on the rear frame and mounted
on the same bracket as the 90% full sensor. The switch is actuated when the tray is at its
lowest allowable limit of operation. When this switch is actuated, the forwards, down-
wards, direction of the elevator motor is disabled, but the motor is allowed to drive the
stack up. Refer to
Figure
February 2013
8-104
Figure
19.
Figure
19.
Figure
19.
19.
ColorQube® 9303 Family
Figure
19.
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