Machine Areas
38
Plockmatic PowerSquare™ 160 - Service Training Workbook
8.6
Staple and Clinch
There are 2 electrically powered staple heads that fire upward from below the deck
and 2 clinchers that are mounted above the deck.
The staple heads are in a fixed position, side-to-side, on the centre line of the
machine and form the datum from which measurements for the endlay set-up are
taken.
The staple heads can move toward each other or away from each other along the
centre line of the machine to give a variable staple pitch. The clinchers move to
match the spacing of the staple heads. The staple head and clincher axes are
adjusted by stepper motors.
On initialisation, the ‘zero point’ of the clinchers is determined. The clinchers are
driven downward to touch the staple heads and the number of steps needed to
arrive at this position is stored as a zero thickness reference.
When a set is delivered to the staple position, the clinchers are driven down by a
stepper motor until they contact the set. The steps needed to bring the clinchers to
the paper are counted and compared with the ‘zero point’ to calculate the thickness
of the book. This data is used by the folder and former to give the correct depth of
fold and spine form.
When the clinchers touch the set, the staple heads and clinchers operate. The
clinchers then rise to release the set, which is transported to the folder area.
An optical sensor in the staple area sees when paper is present. If the sensor stays
covered, then a jam is indicated.
4.2.12 - Remove the Clinch Top Cover
The following components are located in the Staple Area:
Staple heads A and B
Clinchers A and B
900-308 PSQ160
stapler
/rotator control PCB
900-315 PSQ160 staple head interface PCB
Clinch axis drive motor and home sensor
Staple axis drive motor and home sensor
Clinch actuator drive motor and home sensor
Staple area set sensor
Perform the following:
REP 4.15.1 - Remove and Fit a Staple Cartridge
ADJ 4.6.3 - Staple and Clinch Pitch Calibration
ADJ 4.6.1 - Check the Alignment of the Clinchers to the Staple Heads
ADJ 4.6.2 - Adjust the Alignment of the Clinchers
Use the RAPs to diagnose and repair the problem created by the trainer.
Summary of Contents for Morgana PowerSquare 160
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