1.Detailed Descriptions
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consisting of a claw unit press motor holds down and flattens the booklet in preparation for trimming.
Cutter Unit
There is a cutter unit between the feed unit and the trim positioning unit. The unit has a guillotine cutter:
the upper blade has a sharp edge and moves according to the shearing angle, while the lower blade is
blunt and is fixed at an obtuse edge of about 90 degrees. The upper blade of the cutter unit drops down
to cut the booklet at the specified trim position. In order to prevent the stack of sheets from shifting
during trimming, a press mechanism firmly holds down the booklet near its trim edge, before the upper
blade is lowered.
Scrap Hopper
Paper scraps drop down from the cutter unit into the scrap hopper underneath the cutting section.
Sensors detect if the scrap hopper is set, and when it is full.
Tray Unit
After the booklet is trimmed, pressure on the booklet is released, and it is transported to the exit of the
trim positioning unit by a transport mechanism at the lower end of the unit. The booklet is then output to
the tray by paper exit rollers (not shown in diagram). A flat belt is driven to transfer each booklet slowly
onto the output tray, so as to ensure that they are stacked properly. By changing the amount that the
belt moves according to the size and thickness of the booklet, the overlap amount between booklets
can be adjusted, so that stacking and stack capacity can be assured.
Tray Full is detected using a combination of Exit Tray Sensor 2, which detects the rotation angle of the
paper exit lever at the paper exit, and Exit Tray Sensor 1 at the front edge of the paper exit tray,
Specifically, when the Paper Remaining Sensor and Exit Tray Sensor 1 turn on, and Exit Tray Sensor 2
reaches a certain angle, a tray full signal is sent.
Electrical Component Layout
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