6.7 PAPER EXIT STACKING
The stacking roller assembly [A] is fastened to a plate [B] on a shaft by a spring [C].
The cam [D], in contact with the bottom of the plate, is connected to the stacking
roller drag motor [E] via a timing belt.
The stacking roller drag motor and timing belt rotate the cam against the bottom of
the plate to move the rollers forward and back with each sheet ejected onto the
shift tray.
The stacking roller motor [F] drives the shaft [G] that rotates the stacking rollers
counter-clockwise as the rollers move back. The simultaneous rotation and
backward movement of the roller assembly pulls each sheet back toward the copier
to align the edges of the stack on the shift tray.
The actuator [H] is mounted on the cam and rotating with both rotating clockwise)
and detects the roller assembly home position when the actuator leaves the gap of
the return drive HP sensor [I] and signals the machine that the rollers are at the
home position. The machine uses this information to control paper feed timing and
confirm that the mechanism is operating correctly. The cam and actuator make one
complete rotation for every sheet fed out of the machine onto the shift tray.
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